US4806410A — Processes for the production of antistatic or sta…

Claim 1

Independent Claim 188 words

An antistatic or static dissipative sheet-like material for use in packaging comprising, a web of the sheet-like material which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer to form said antistatic material, said sheet-like material before being treated with said antistatic material possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer to provide for said solution to penetrate said web and provide static control characteristics to said sheet-like material, said antistatic material being dried on said web and providing for said sheet-like material a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web.

Claim 2

Dependent Claim 188 words

An antistatic or static dissipative sheet-like material for use in packaging comprising, a web of the sheet-like material which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer to form said antistatic material, said sheet-like material before being treated with said antistatic material possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer to provide for said solution to penetrate said web and provide static control characteristics to said sheet-like material, said antistatic material being dried on said web and providing for said sheet-like material a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web.

Claim 3

Dependent Claim 19 words

A sheet-like antistatic material in accordance with claim 1 wherein said polymer is essentially an electroconductive quaternary ammonium polymer.

Claim 4

Dependent Claim 174 words

An antistatic or static dissipative paper for use in packaging and the like comprising, a web of paper which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer and a liquid carrier to form said antistatic material, said antistatic material impregnating and being dried on said web and providing for said paper a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, said web before being treated with said antistatic material possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer.

Claim 5

Dependent Claim 174 words

An antistatic or static dissipative paper for use in packaging and the like comprising, a web of paper which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer and a liquid carrier to form said antistatic material, said antistatic material impregnating and being dried on said web and providing for said paper a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, said web before being treated with said antistatic material possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer.

Claim 6

Dependent Claim 18 words

an antistatic paper in accordance with claim 3 wherein said polymer is essentially an electroconductive quaternary ammonium polymer.

Claim 7

Dependent Claim 29 words

An antistatic paper in accordance with claim 3 wherein said paper web consists of urea formaldehyde wet-strength unbleached, unsized, standard MF kraft paper possessing a porosity within said range.

Claim 8

Dependent Claim 157 words

An antistatic or static dissipative paper for use in packaging and the like comprising, a web of paper which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer and a liquid carrier to form said antistatic material, said antistatic material impregnating and being dried on said web and providing for said paper a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, and wherein said polymer is essentially a water soluble polystyrene sulfonic acid.

Claim 9

Dependent Claim 157 words

An antistatic or static dissipative paper for use in packaging and the like comprising, a web of paper which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer and a liquid carrier to form said antistatic material, said antistatic material impregnating and being dried on said web and providing for said paper a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, and wherein said polymer is essentially a water soluble polystyrene sulfonic acid.

Claim 10

Dependent Claim 47 words

An antistatic paper in accordance with claim 3 wherein said polymer on the treated web of paper is an electroconductive resin composition of approximately 0.5 pound or two pounds per 3,000 square feet of paper web per respective side surface when dried on said respective side surface.

Claim 11

Dependent Claim 28 words

An antistatic paper in accordance with claim 4 wherein said quaternary ammonium polymer is a 40% solution by weight of said polymer prior to mixing with said carrier.

Claim 12

Dependent Claim 13 words

An antistatic paper in accordance with claim 3 wherein said carrier is water.

Claim 13

Dependent Claim 19 words

An antistatic paper in accordance with claim 3 wherein said carrier comprises alcohol, such as methanol, ethanol or isopropanol.

Claim 14

Dependent Claim 25 words

An antistatic paper in accordance with claim 3 wherein said carrier consists essentially of a mixture of water and alcohol or other water miscible solvents.

Claim 15

Dependent Claim 21 words

An antistatic paper in accordance with claim 3 wherein said paper web is nominal 30 pound kraft paper possessing said porosity.

Claim 16

Dependent Claim 295 words

Paper dunnage product comprising a pad-like article for use in packaging, formed from paper web or the like with the lateral edges of the web having been generally loosely rolled inwardly and forming crumpled pillow-like portions defining the lateral extremities of said packaging article, and means connecting the rolled confronting edges of the pillow-like portions together along the generally central portion of the pad-like article, lengthwise thereof, the last mentioned means comprising transversely extending stitched portions of said confronting edges, the latter being in generally overlapped relation at said central portion, said laterally arranged pillow-like portions of said article possessing considerable resiliency, each being of a substantially greater thickness than said central connecting portion, and said web having been impregnated on at least one surface thereof with antistatic liquid material which is subsequently dried thereon and is operable to facilitate the dissipation of static charge, thus providing said product with electrical charge protection, as well as cushioning characteristics, said web before being treated with said antistatic material possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer, and wherein said antistatic material utilizes a solution of a water soluble, non-cross linking antistatic polymer forming said antistatic material, said antistatic polymer being dried on said web prior to the formation thereof into said product and providing said product with a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said product.

Claim 17

Dependent Claim 295 words

Paper dunnage product comprising a pad-like article for use in packaging, formed from paper web or the like with the lateral edges of the web having been generally loosely rolled inwardly and forming crumpled pillow-like portions defining the lateral extremities of said packaging article, and means connecting the rolled confronting edges of the pillow-like portions together along the generally central portion of the pad-like article, lengthwise thereof, the last mentioned means comprising transversely extending stitched portions of said confronting edges, the latter being in generally overlapped relation at said central portion, said laterally arranged pillow-like portions of said article possessing considerable resiliency, each being of a substantially greater thickness than said central connecting portion, and said web having been impregnated on at least one surface thereof with antistatic liquid material which is subsequently dried thereon and is operable to facilitate the dissipation of static charge, thus providing said product with electrical charge protection, as well as cushioning characteristics, said web before being treated with said antistatic material possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer, and wherein said antistatic material utilizes a solution of a water soluble, non-cross linking antistatic polymer forming said antistatic material, said antistatic polymer being dried on said web prior to the formation thereof into said product and providing said product with a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said product.

Claim 18

Dependent Claim 108 words

A paper dunnage product in accordance with claim 13 having a density of approximately 0.6 to 0.75 pounds per cubic foot when said product is formed of three superimposed paper webs of 30 pound kraft paper, one or more of which possessed a porosity within said range prior to having been treated with said antistatic material, and prior to formation of said superimposed webs into said product, and wherein each said web is approximately 30 inches in width prior to being rolled inwardly to form said product, said product being approximately 81/2 to 91/2 inches wide with said pillow-like portions each being approximately 2 to 31/2 inches thick.

Claim 19

Dependent Claim 162 words

A process for the production of antistatic or static dissipative paper for use in packaging, comprising, providing a web of paper possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer, applying a liquid antistatic mixture to at least one side surface of the paper, said antistatic liquid mixture consisting of a liquid carrier and a solution of antistatic material including a water soluble, non-cross linking polymer, drying said solution on said web and providing a packaging paper having on said one side surface thereof a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of the paper.

Claim 20

Dependent Claim 162 words

A process for the production of antistatic or static dissipative paper for use in packaging, comprising, providing a web of paper possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer, applying a liquid antistatic mixture to at least one side surface of the paper, said antistatic liquid mixture consisting of a liquid carrier and a solution of antistatic material including a water soluble, non-cross linking polymer, drying said solution on said web and providing a packaging paper having on said one side surface thereof a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of the paper.

Claim 21

Dependent Claim 17 words

A process in accordance with claim 15 including providing said carrier in the form of essentially water.

Claim 22

Dependent Claim 32 words

A process in accordance with claim 15 including providing said liquid carrier as essentially a mixture of alcohol and water in the quantities by volume of approximately 50% alcohol and 50% water.

Claim 23

Dependent Claim 20 words

A process in accordance with claim 15 including providing said polymer in the form of essentially a quaternary ammonium compound.

Claim 24

Dependent Claim 22 words

A process in accordance with claim 15 including providing said polymer in the form of essentially a water soluble polystyrene sulfonic acid.

Claim 25

Dependent Claim 88 words

A process in accordance with claim 15 including moving the paper web at a rate of approximately 1,400 feet per minute into coaction with a pair of coacting, power driven rollers, and thence through a drier to accomplish said drying, with the latter comprising heated, rotatable drums maintained at approximately 240° F. to 260° F., with the paper web being engageable with said drums of the drier for up to three minutes at said rate of movement, and then winding the web into a roll for subsequent handling.

Claim 26

Dependent Claim 39 words

A process in accordance with claim 15 including providing the liquid antistatic material as essentially a quaternary ammonium compound and the liquid carrier as essentially water or essentially a combination of water and alcohol or other water miscible solvents.

Claim 27

Dependent Claim 31 words

A process in accordance with claim 15 which includes engaging the coated web with metal in said drier to prevent accumulation of static charge on said paper produced in said process.

Claim 28

Dependent Claim 155 words

A process for the production of antistatic or static dissipative sheet-like material for packaging, comprising, providing a web of the sheet-like material having a porosity within a range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer, applying a liquid antistatic mixture to at least one side surface of said web, said antistatic mixture utilizing a solution of a water soluble non-cross linking polymer, causing said mixture to penetrate said web, drying said impregnated web, and resulting in the sheet-like material having electrical characteristics comprising a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding thereof.

Claim 29

Dependent Claim 155 words

A process for the production of antistatic or static dissipative sheet-like material for packaging, comprising, providing a web of the sheet-like material having a porosity within a range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer, applying a liquid antistatic mixture to at least one side surface of said web, said antistatic mixture utilizing a solution of a water soluble non-cross linking polymer, causing said mixture to penetrate said web, drying said impregnated web, and resulting in the sheet-like material having electrical characteristics comprising a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding thereof.

Claim 30

Dependent Claim 33 words

A process in accordance with claim 23 wherein said electrical characteristics are retained by said sheet-like material over a relatively long time period such as for instance at least 9 to 12 months.

Claim 31

Dependent Claim 50 words

A process in accordance with claim 23 including subjecting said web to a drier mechanism to accomplish said drying thereof, and contacting said dried web with a metallic path to ground and thus eliminating any arcing of electrical charge from said dried web upon emission thereof from said drier mechanism.

Claim 32

Dependent Claim 175 words

An antistatic or static dissipative sheet-like material for use in packaging comprising, a web of the sheet-like material which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer to form said antistatic material, said sheet-like material being sufficiently porous to allow said solution to penetrate said web and provide static control characteristics to said sheet-like material, said antistatic material being dried on said web an providing for said sheet-like material a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum volage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, and wherein said polymer is essentially a water soluble polystyrene sulfonic acid.

Claim 33

Dependent Claim 175 words

An antistatic or static dissipative sheet-like material for use in packaging comprising, a web of the sheet-like material which has been treated on at least one surface thereof with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer to form said antistatic material, said sheet-like material being sufficiently porous to allow said solution to penetrate said web and provide static control characteristics to said sheet-like material, said antistatic material being dried on said web an providing for said sheet-like material a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum volage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, and wherein said polymer is essentially a water soluble polystyrene sulfonic acid.

Claim 34

Dependent Claim 24 words

A sheet-like material in accordance with claim 1 wherein said polymer is essentially an electroconductive combination of ammonium or other inorganic salts and surfactants.

Claim 35

Dependent Claim 46 words

A process in accordance with claim 15 including providing said polymer in the form of essentially a water soluble polystyrene sulfonic acid, and providing the liquid carrier in the form of essentially water or a combination of essentially water and alcohol or other water miscible solvents.

Claim 36

Dependent Claim 51 words

A process in accordance with claim 15 including providing said polymer in the form of essentially an electroconductive combination of ammonium or other inorganic salts and surfactants, and providing the liquid carrier in the form of essentially water or essentially a combination of water and alcohol or other water miscible solvents.

Claim 37

Dependent Claim 221 words

An antistatic or static dissipative sheet-like material for packaging, comprising, a web of the sheet-like material which has been treated on at least one surface thereof with a liquid antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a soluion of a water soluble, non-cross linking antistatic polymer to form said antistatic material, said sheet-like material prior to its being treated with said antistatic material having a porosity within the range of about 5 to about 25 sec./100 ml as measured on a Gurley densitometer, to allow said solution to penetrate said web and provide static control characteristics to said treated sheet-like material, said antistatic material being dried on said web and providing for said treated sheet-like material an electroconductive resin composition of approximately one pound to approximately four pounds per 3,000 square feet of said treated sheet-like material, said antistatic or static dissipative sheet-like material having a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said treated sheet-like material.

Claim 38

Dependent Claim 221 words

An antistatic or static dissipative sheet-like material for packaging, comprising, a web of the sheet-like material which has been treated on at least one surface thereof with a liquid antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a soluion of a water soluble, non-cross linking antistatic polymer to form said antistatic material, said sheet-like material prior to its being treated with said antistatic material having a porosity within the range of about 5 to about 25 sec./100 ml as measured on a Gurley densitometer, to allow said solution to penetrate said web and provide static control characteristics to said treated sheet-like material, said antistatic material being dried on said web and providing for said treated sheet-like material an electroconductive resin composition of approximately one pound to approximately four pounds per 3,000 square feet of said treated sheet-like material, said antistatic or static dissipative sheet-like material having a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said treated sheet-like material.

Claim 39

Dependent Claim 38 words

An antistatic paper in accordance with claim 7 wherein the stated electrical characteristics of said paper are retained by said paper in storage for at least nine to twelve months, thus providing said paper with long shelf life.

Claim 40

Dependent Claim 143 words

A process in accordance with claim 15 wherein the carrier consists essentially of water and the solution of antistatic material includes a quaternary ammonium compound, and including the step of first producing the web on a paper making macine and drying the produced web from the paper making machine so that it possesses a moisture content of between approximately 5% to 10% by weight prior to said applying of said liquid antistatic mixture thereto, and then performing said step of applying said liquid antistatic mixture to said web, said step of drying said solution on said web being accomplished by passing the web with said antistatic mixture applied thereto about and in engaged relation with heated rotatable drums to produce the dried antistatic paper web, and including a step of winding the last mentioned dried paper web into roll form for subsequent handling.

Claim 41

Dependent Claim 271 words

An antistatic or static dissipative paper for use in packaging and the like comprising, a web of paper which has been treated with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer, and a liquid carrier, to form said antistatic material, said antistatic liquid material impregnating and being dried on said web and providing said wweb with a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, said polymer consisting of an electroconductive quaternary ammonium polymer, said web of paper possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer before being treated with said antistatic material, said quaternary ammonium polymer consisting of a forty percent solution by weight of said polymer prior to its being mixed with said carrier, and wherein said carrier consists essentially of water, said web being urea formaldehyde wet strength unbleached, unsized, nominal 30 pound kraft paper possessing a porosity within said range, before being treated with said antistatic material, said antistatic material upon being dried on said web, providing an electroconductive resin composition on said web of between approximately one pound to approximately four pounds per 3,000 square feet of said web.

Claim 42

Dependent Claim 271 words

An antistatic or static dissipative paper for use in packaging and the like comprising, a web of paper which has been treated with an antistatic material operable to facilitate the dissipation of static charge, said antistatic material utilizing a solution of a water soluble, non-cross linking antistatic polymer, and a liquid carrier, to form said antistatic material, said antistatic liquid material impregnating and being dried on said web and providing said wweb with a surface resistivity in the range of approximately 1×10 5 ohms per square to 1×10 12 ohms per square at a relative humidity of no greater than approximately 15% or less, and a maximum voltage decay time of approximately two seconds or less at no greater than approximately 15% or less relative humidity for approximately 5,000 applied volts to technical zero volts, upon grounding of said web, said polymer consisting of an electroconductive quaternary ammonium polymer, said web of paper possessing a porosity in the range of approximately 5 to approximately 25 sec./100 ml as measured on a Gurley densitometer before being treated with said antistatic material, said quaternary ammonium polymer consisting of a forty percent solution by weight of said polymer prior to its being mixed with said carrier, and wherein said carrier consists essentially of water, said web being urea formaldehyde wet strength unbleached, unsized, nominal 30 pound kraft paper possessing a porosity within said range, before being treated with said antistatic material, said antistatic material upon being dried on said web, providing an electroconductive resin composition on said web of between approximately one pound to approximately four pounds per 3,000 square feet of said web.

Claim 43

Dependent Claim 158 words

A process in accordance with claim 32 wherein said application of said liquid antistatic mixture to the web comprises passing the web through a pool of the liquid antistatic mixture at a rate of approximately 1400 feet per minute and thence between a pair of coacting power driven rollers, and wherein the heated rotatable drums for drying said solution on the web are maintained at between approximately 240 degrees Fahrenheit to 160 degrees Fahrenheit, with the web being engagable with the drums for up to three minutes, and then accomplishing said step of winding the dried web into a roll form for subsequent handling, and wherein the produced web from the paper making machine is urea formaldehyde wet strength unbleached, unsized, standard MF kraft paper of nominal 30 pound weight possessing a porosity within a range of about 5 to about 15 sec./100 ml as measured on a Gurley densitometer, before being treated with the liquid antistatic mixture.

Claim 44

Dependent Claim 22 words

An antistatic or static dissipative paper in accordance with claim 33 which possesses a volume resistivity of less than 1×10 11 ohms-centimeter.

Claim 45

Dependent Claim 24 words

A sheet-like material in accordance with claim 3 wherein said polymer is essentially an electroconductive combination of ammonium or other inorganic salts and surfactants.

Claim 46

Dependent Claim 30 words

A process in accordance with claim 23 wherein said applying of the liquid antistatic mixture to the web comprises passing the web through a pool of the liquid antistatic mixture.

Claim 47

Dependent Claim 25 words

A process in accordance with claim 37 including passing said web between a pair of coacting rollers after passing through said pool of antistatic mixture.

Claim 48

Dependent Claim 14 words

An antistatic or static dissipative packaging paper produced by the process of claim 15.

Claim 49

Dependent Claim 14 words

An antistatic or static dissipative sheet-like material produced by the process of claim 23.

Claim 50

Dependent Claim 19 words

A paper dunnage product in accordance with claim 13 wherein said polymer consists essentially of a quaternary ammonium compound.

Claim 51

Dependent Claim 21 words

A paper dunnage product in accordance with claim 13 wherein said polymer consists essentially of a water soluble polystyrene sulfonic acid.

Claim 52

Dependent Claim 26 words

A paper dunnage product in accordance with claim 13 wherein said polymer consists essentially of an electroconductive combination of ammonium or other inorganic salts and surfactants.

Claim 53

Dependent Claim 54 words

A paper dunnage product in accordance with claim 13 wherein said polymer on the impregnated web consists of an electroconductive resin composition of essentially a quaternary ammonium compound, and of approximately 0.5 pound to two pounds per 3,000 square feet of web per respective side surface thereof when dried on said respective side surface.

Claim 54

Dependent Claim 63 words

A process in accordance with claim 23 including applying said antistatic mixture to at least said one side surface of said web in an amount resulting upon drying of said mixture on said web of an amount of said polymer in a range of approximately 0.5 pound to approximately two pounds per 3,000 square feet of web per respective said side surface thereof.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-02-21	1992-08-22	1993-02-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-02-21	1996-08-22	1997-02-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-02-21	2000-08-22	2001-02-21	$7700.00	Window Closed / Lapsed

Processes for the production of antistatic or static dissipative paper, and the paper products thus produced, and apparatus utilized

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