US3876452A — Articles coated with hydralyzed copolymer of ethy…

Claim 1

Independent Claim 1 words

CELLULOSE

Claim 2

Dependent Claim 1 words

CELLULOSE

Claim 3

Dependent Claim 1 words

CELLULOSE

Claim 4

Dependent Claim 1 words

CELLULOSE

Claim 5

Dependent Claim 31 words

AN ARTICLE OF MANUFACTURE BEARING ON AT LEAST ONE SURFACE THEREOF AN ETHYLENE POLYMER PREPARED BY THE ALKALINE HYDROLYSIS OF AN ETHYLENE-ALKYL ACRYLATE POLYMER AND HAVING RECURRING UNITS OF THE STRUCTURE:

Claim 6

Dependent Claim 31 words

AN ARTICLE OF MANUFACTURE BEARING ON AT LEAST ONE SURFACE THEREOF AN ETHYLENE POLYMER PREPARED BY THE ALKALINE HYDROLYSIS OF AN ETHYLENE-ALKYL ACRYLATE POLYMER AND HAVING RECURRING UNITS OF THE STRUCTURE:

Claim 7

Dependent Claim 54 words

A method as claimed in claim 1 wherein the aluminous material is contacted with water to form the bayerite layer by immersing a degreased and washed aluminous material in water or an aqueous solution of an organic amine, whereafter to form the boehmite layer, the thus treated aluminous material is immersed in boiling water.

Claim 8

Dependent Claim 2 words

CELLULOSE ESTERS

Claim 9

Dependent Claim 2 words

CELLULOSE ESTERS

Claim 10

Dependent Claim 2 words

CELLULOSE ESTERS

Claim 11

Dependent Claim 2 words

CELLULOSE ESTERS

Claim 12

Dependent Claim 111 words

The article of manufacture of claim 1 wherein said article is a film and comprises a material selected from the group consisting of: 1. thermoplastic olefin polymers containing in polymerized form at least 25 mole percent of a 2 to 4 carbon atom alpha monoolefin, 2. thermoplastic chloroolefin polymers containing in polymerized form at least 25 mole percent of a monomer of the group consisting of vinyl chloride and vinylidene chloride, 3. thermoplastic acrylate ester polymers containing in polymerized form at least 25 mole percent of a monomer of the group consisting of esters of acrylic acid and esters of methacrylic acid, 4. thermoplastic polyamide polymers, and 5. thermoplastic polyester polymers.

Claim 13

Dependent Claim 20 words

An article of manufacture bearing on at least one surface thereof an ethylene polymer having recurring units of the structure:

Claim 14

Dependent Claim 20 words

An article of manufacture bearing on at least one surface thereof an ethylene polymer having recurring units of the structure:

Claim 15

Dependent Claim 2 words

CELLULOSE ETHERS

Claim 16

Dependent Claim 2 words

CELLULOSE ETHERS

Claim 17

Dependent Claim 2 words

CELLULOSE ETHERS

Claim 18

Dependent Claim 2 words

CELLULOSE ETHERS

Claim 19

Dependent Claim 53 words

A method as claimed in claim 1 wherein the aluminous material is contacted with water to form the bayerite layer by immersing a degreased and washed aluminous material in water or an aqueous solution of an organic amine, whereafter to form the boehmite layer, the thus treated aluminous material is sprayed with steam.

Claim 20

Independent Claim 180 words

A method for painting an aluminous material comprising 1. spraying at pH 9-11 and at a temperature higher than 75.degree.C, material selected from the group consisting of water, an aqueous solution containing an organic amine or steam, each of which contains fine particles of 50-300 .mu. having a hardness higher than that of the aluminous material, under a pressure of 1-20 kg/cm.sup.2 onto the aluminous material to roughen the surface of the aluminous material and simultaneously to form a boehmite layer thereon, contacting the thus treated aluminous material with water at a temperature higher than 75.degree.C to remove fine particles adhered to the aluminous material and to grow the boehmite layer, 2. immersing the aluminous material provided with the boehmite layer in a water-soluble thermosetting resin paint bath containing an organic amine having a temperature of 40.degree.-60.degree.C and thereafter removing the aluminous material from the paint bath and 3. heating the now painted aluminous material to a temperature of 150.degree.-210.degree.C for a time sufficient to bake and cure the paint and simultaneously to complete the formation of the boehmite layer.

Claim 21

Independent Claim 180 words

A method for painting an aluminous material comprising 1. spraying at pH 9-11 and at a temperature higher than 75.degree.C, material selected from the group consisting of water, an aqueous solution containing an organic amine or steam, each of which contains fine particles of 50-300 .mu. having a hardness higher than that of the aluminous material, under a pressure of 1-20 kg/cm.sup.2 onto the aluminous material to roughen the surface of the aluminous material and simultaneously to form a boehmite layer thereon, contacting the thus treated aluminous material with water at a temperature higher than 75.degree.C to remove fine particles adhered to the aluminous material and to grow the boehmite layer, 2. immersing the aluminous material provided with the boehmite layer in a water-soluble thermosetting resin paint bath containing an organic amine having a temperature of 40.degree.-60.degree.C and thereafter removing the aluminous material from the paint bath and 3. heating the now painted aluminous material to a temperature of 150.degree.-210.degree.C for a time sufficient to bake and cure the paint and simultaneously to complete the formation of the boehmite layer.

Claim 22

Dependent Claim 1 words

METALS

Claim 23

Dependent Claim 1 words

METALS

Claim 24

Dependent Claim 1 words

METAL

Claim 25

Dependent Claim 1 words

METAL

Claim 26

Dependent Claim 30 words

The article of manufacture of claim 3 wherein said R.sub.1 cation is selected from the group consisting of the alkali metals, ammonium, substituted ammonium, quaternary ammonium, magnesium, calcium and aluminum.

Claim 27

Dependent Claim 26 words

The article of manufacture of claim 3 wherein R.sub.2 and R.sub.3 are hydrogen and wherein R.sub.1 is selected from the group consisting of sodium and potassium.

Claim 28

Dependent Claim 21 words

THERMOPLASTIC OLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A 2 TO 4 CARBON ATOM ALPHA MONOOLEFIN,

Claim 29

Dependent Claim 21 words

THERMOPLASTIC OLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A 2 TO 4 CARBON ATOM ALPHA MONOOLEFIN,

Claim 30

Dependent Claim 21 words

THERMOPLASTIC OLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A 2 TO 4 CARBON ATOM ALPHA MONOOLEFIN,

Claim 31

Dependent Claim 21 words

THERMOPLASTIC OLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A 2 TO 4 CARBON ATOM ALPHA MONOOLEFIN,

Claim 32

Dependent Claim 20 words

A method as claimed in claim 4 wherein to remove the fine particles the aluminous material is sprayed with steam.

Claim 33

Dependent Claim 26 words

A method as claimed in claim 4 wherein to remove the fine particles the aluminous material is immersed in an aqueous solution containing an organic amine.

Claim 34

Dependent Claim 25 words

THERMOPLASTIC CHLOROOLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYLIDINE CHLORIDE,

Claim 35

Dependent Claim 25 words

THERMOPLASTIC CHLOROOLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYLIDINE CHLORIDE,

Claim 36

Dependent Claim 25 words

THERMOPLASTIC CHOLROOLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYLIDINE CHLORIDE,

Claim 37

Dependent Claim 25 words

THERMOPLASTIC CHOLROOLEFIN POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYLIDINE CHLORIDE,

Claim 38

Dependent Claim 110 words

The article of manufacture of claim 3 wherein said article is a film comprising a material selected from the group consisting of: 1. thermoplastic olefin polymers containing in polymerized form at least 25 mole percent of a 2 to 4 carbon atom alpha monoolefin, 2. thermoplastic chloroolefin polymers containing in polymerized form at least 25 mole percent of a monomer of the group consisting of vinyl chloride and vinylidine chloride, 3. thermoplastic acrylate ester polymers containing in polymerized form at least 25 mole percent of a monomer of the group consisting of esters of acrylic acid and esters of methacrylic acid, 4. thermoplastic polyamide polymers, and 5. thermoplastic polyester polymers.

Claim 39

Dependent Claim 26 words

The article of manufacture of claim 3 wherein said article comprises a material selected from the group consisting of ethylene homopolymer, regenerated cellulose, metal, and paper.

Claim 40

Dependent Claim 30 words

THERMOPLASTIC ACRYLATE ESTER POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF ESTERS OF ACRYLIC ACID AND ESTERS OF METHACRYLIC ACID,

Claim 41

Dependent Claim 30 words

THERMOPLASTIC ACRYLATE ESTER POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF ESTERS OF ACRYLIC ACID AND ESTERS OF METHACRYLIC ACID,

Claim 42

Dependent Claim 30 words

THERMOPLASTIC ACRYLATE ESTER POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF ESTERS OF ACRYLIC ACID AND ESTER OF METHACRYLIC ACID,

Claim 43

Dependent Claim 30 words

THERMOPLASTIC ACRYLATE ESTER POLYMERS CONTAINING IN POLYMERIZED FORM AT LEAST 25 MOLE PERCENT OF A MONOMER OF THE GROUP CONSISTING OF ESTERS OF ACRYLIC ACID AND ESTER OF METHACRYLIC ACID,

Claim 44

Dependent Claim 16 words

A method as claimed in claim 4 wherein the aluminous material is initially degreased and washed.

Claim 45

Dependent Claim 35 words

A method as claimed in claim 4 wherein the substance in said initial spray step contains a surfactant whereby to simultaneously degrease the material while the material is roughened and the boehmite layer is formed.

Claim 46

Dependent Claim 4 words

THERMOPLASTIC POLYAMIDE POLYMERS, AND

Claim 47

Dependent Claim 4 words

THERMOPLASTIC POLYAMIDE POLYMERS, AND

Claim 48

Dependent Claim 4 words

THERMOPLASTIC POLYAMIDE POLYMERS, AND

Claim 49

Dependent Claim 4 words

THERMOPLASTIC POLYAMIDE POLYMERS, AND

Claim 50

Dependent Claim 20 words

An article of manufacture bearing on at least one surface thereof an ethylene polymer having recurring units of the structure:

Claim 51

Dependent Claim 20 words

An article of manufacture bearing on at least one surface thereof an ethylene polymer having recurring units of the structure:

Claim 52

Dependent Claim 29 words

An article of manufacture comprising a film layer of a vinylidene chloride copolymer bearing on at least one surface thereof an ethylene polymer having recurring units of the structure:

Claim 53

Dependent Claim 29 words

An article of manufacture comprising a film layer of a vinylidene chloride copolymer bearing on at least one surface thereof an ethylene polymer having recurring units of the structure:

Claim 54

Dependent Claim 3 words

THERMOPLASTIC POLYESTER POLYMERS.

Claim 55

Dependent Claim 3 words

THERMOPLASTIC POLYESTER POLYMERS.

Claim 56

Dependent Claim 147 words

THERMOPLASTIC POLYESTER POLYMERS; SAID ETHYLENE POLYMER HAVING BEEN PREPARED BY THE ALKALINE HYDROLYSIS OF AN ETHYLENE-ALKYL ACRYLATE POLYMER AND HAVING RECURRING UNITS OF THE STRUCTURE: (A) -CH2-CH2- (B) -CH2-C(-R)(-COO-R1)AND OPTIONALLY UNITS OF THE STRUCTURE (C) -CH2-C(-R)(-CO-N(-R2)-R3)- AND/OR (D) -CH2-C(-R)(-COO-R4)WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL GROUPS, R1 IS A CATION SELECTED FROM THE GROUP CONSISTING OF AMMONIUM, SUBSTITUTED AMMONIUM, QUATERNARY AMMONIUM AND METALLIC CATIONS, R2 AND R3 ARE INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HYDROXYALKYL AND HYDROCARBON GROUPS WITH THE FURTHER PROVISION THAT R2 AND R3 AMY BE COMBINED WITH N IN A HETEROCYCLIC GROUP, AND R4 IS A HYDROCARBON GROUP; THE TOTAL OF SAID UNITS (B), (C) AND (D) BEING PRESENT IN A RATIO OF FROM ABOUT 0.01 TO ABOUT 0.5 MOLE PER MOLE OF UNITS (A); MOLE % OF THE TOTAL OF SAID UNITS (B), (C) AND (D).

Claim 57

Dependent Claim 147 words

THERMOPLASTIC POLYESTER POLYMERS; SAID ETHYLENE POLYMER HAVING BEEN PREPARED BY THE ALKALINE HYDROLYSIS OF AN ETHYLENE-ALKYL ACRYLATE POLYMER AND HAVING RECURRING UNITS OF THE STRUCTURE: (A) -CH2-CH2- (B) -CH2-C(-R)(-COO-R1)AND OPTIONALLY UNITS OF THE STRUCTURE (C) -CH2-C(-R)(-CO-N(-R2)-R3)- AND/OR (D) -CH2-C(-R)(-COO-R4)WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL GROUPS, R1 IS A CATION SELECTED FROM THE GROUP CONSISTING OF AMMONIUM, SUBSTITUTED AMMONIUM, QUATERNARY AMMONIUM AND METALLIC CATIONS, R2 AND R3 ARE INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HYDROXYALKYL AND HYDROCARBON GROUPS WITH THE FURTHER PROVISION THAT R2 AND R3 AMY BE COMBINED WITH N IN A HETEROCYCLIC GROUP, AND R4 IS A HYDROCARBON GROUP; THE TOTAL OF SAID UNITS (B), (C) AND (D) BEING PRESENT IN A RATIO OF FROM ABOUT 0.01 TO ABOUT 0.5 MOLE PER MOLE OF UNITS (A); MOLE % OF THE TOTAL OF SAID UNITS (B), (C) AND (D).

Claim 58

Dependent Claim 21 words

A method as claimed in claim 8 comprising spraying the treated aluminous material, before immersion in aqueous amine solution, with steam.

Claim 59

Dependent Claim 26 words

A LAMINATED STRUCTURE COMPRISING A PLURALITY OF LAMINAE BONDED TOGETHER WITH AN ETHYLENE POLYMER; SAID LAMINAE BEING FABRICATED FROM MATERIALS SELECTED FROM THE GROUP CONSISTING OF:

Claim 60

Dependent Claim 26 words

A LAMINATED STRUCTURE COMPRISING A PLURALITY OF LAMINAE BONDED TOGETHER WITH AN ETHYLENE POLYMER; SAID LAMINAE BEING FABRICATED FROM MATERIALS SELECTED FROM THE GROUP CONSISTING OF:

Claim 61

Dependent Claim 22 words

A laminated structure comprising a pair of sheets of paper bonded together with an ethylene polymer having recurring units of the structure:

Claim 62

Dependent Claim 22 words

A laminated structure comprising a pair of sheets of paper bonded together with an ethylene polymer having recurring units of the structure:

Claim 63

Dependent Claim 25 words

A laminated structure comprising a sheet of paper bonded to a sheet of aluminum foil with an ethylene polymer having recurring units of the structure:

Claim 64

Dependent Claim 25 words

A laminated structure comprising a sheet of paper bonded to a sheet of aluminum foil with an ethylene polymer having recurring units of the structure:

Claim 65

Dependent Claim 26 words

A laminated structure comprising a sheet of paper bonded to a film of an ethylene homopolymer with an ethylene polymer having recurring units of the structure:

Claim 66

Dependent Claim 26 words

A laminated structure comprising a sheet of paper bonded to a film of an ethylene homopolymer with an ethylene polymer having recurring units of the structure:

Claim 67

Dependent Claim 57 words

A three layer, flexible packaging sheet material characterized by strength, durability, good heat sealability and oil resistance consisting essentially of a. paper substrate having at least 25 pounds per 3,000 square feet basis weight, b. a thin layer of thermoplastic ionomer resin present in the amount of at least 6 pounds, and c. a layer of polyethylene,

Claim 68

Dependent Claim 57 words

A three layer, flexible packaging sheet material characterized by strength, durability, good heat sealability and oil resistance consisting essentially of a. paper substrate having at least 25 pounds per 3,000 square feet basis weight, b. a thin layer of thermoplastic ionomer resin present in the amount of at least 6 pounds, and c. a layer of polyethylene,

Claim 69

Dependent Claim 133 words

An article of manufacture comprising a heat-sealable film structure including a base layer of a self-supporting film of organic thermoplastic polymeric material having a heat-sealable coating on at least one surface thereof of an ionic copolymer selected from the class consisting of direct copolymers of ethylene, the ethylene content of said copolymer being at least 67 mol percent based upon said copolymer, and an alpha, beta-ethylenically unsaturated monocarboxylic acid, the acid monomer content of said copolymer being from 1 to 33 mol percent based upon the copolymer, said copolymer containing uniformly distributed throughout said copolymer a metal ion selected from the group consisting of sodium, potassium, lithium, magnesium, calcium and aluminum ions wherein substantially all of said monovalent carboxylic acid copolymer is neutralized by said metal ion and exists in an ionic state.

Claim 70

Dependent Claim 133 words

An article of manufacture comprising a heat-sealable film structure including a base layer of a self-supporting film of organic thermoplastic polymeric material having a heat-sealable coating on at least one surface thereof of an ionic copolymer selected from the class consisting of direct copolymers of ethylene, the ethylene content of said copolymer being at least 67 mol percent based upon said copolymer, and an alpha, beta-ethylenically unsaturated monocarboxylic acid, the acid monomer content of said copolymer being from 1 to 33 mol percent based upon the copolymer, said copolymer containing uniformly distributed throughout said copolymer a metal ion selected from the group consisting of sodium, potassium, lithium, magnesium, calcium and aluminum ions wherein substantially all of said monovalent carboxylic acid copolymer is neutralized by said metal ion and exists in an ionic state.

Claim 71

Dependent Claim 19 words

The article of manufacture of claim 15 wherein said base layer of the self-supporting film structure is a polyolefin.

Claim 72

Dependent Claim 19 words

The article of manufacture of claim 15 wherein said base layer of a self-supporting film structure is polyethylene terephthalate.

Claim 73

Dependent Claim 19 words

The article of manufacture of claim 15 wherein said base layer of a self-supporting film structure is a polyamide.

Claim 74

Dependent Claim 40 words

The article of manufacture of claim 15 wherein said heat-sealable coating of an ionic copolymer is characterized by an acid monomer content of between about 3.8 and about 13 mol percent, based upon the total weight of said ionic copolymer.

Claim 75

Dependent Claim 19 words

The article of manufacture of claim 15 wherein said monocarboxylic acid in said ionic copolymer coating is methacrylic acid.

Claim 76

Dependent Claim 122 words

An article of manufacture comprising a heat-sealable film structure including a base layer of a self-supporting film of organic thermoplastic polymeric material having a heat-sealable coating on at least one surface thereof of an ionic copolymer selected from the class consisting of direct copolymers of ethylene, the ethylene content of said copolymer being at least 67 mol percent based upon said copolymer, and an alpha, beta-ethylenically unsaturated monocarboxylic acid, the acid monomer content of said copolymer being from about 1 to 33 mol percent based upon the copolymer, said copolymer containing uniformly distributed throughout said copolymer an alkali metal ion wherein substantially all of said monovalent carboxylic acid copolymer is neutralized by said alkali metal ion and exists in an ionic state;

Claim 77

Dependent Claim 122 words

An article of manufacture comprising a heat-sealable film structure including a base layer of a self-supporting film of organic thermoplastic polymeric material having a heat-sealable coating on at least one surface thereof of an ionic copolymer selected from the class consisting of direct copolymers of ethylene, the ethylene content of said copolymer being at least 67 mol percent based upon said copolymer, and an alpha, beta-ethylenically unsaturated monocarboxylic acid, the acid monomer content of said copolymer being from about 1 to 33 mol percent based upon the copolymer, said copolymer containing uniformly distributed throughout said copolymer an alkali metal ion wherein substantially all of said monovalent carboxylic acid copolymer is neutralized by said alkali metal ion and exists in an ionic state;

Claim 78

Dependent Claim 19 words

The article of manufacture of claim 21 wherein said base layer of the self-supporting film structure is a polyolefin.

Claim 79

Dependent Claim 19 words

The article of manufacture of claim 21 wherein said base layer of a self-supporting film structure is polyethylene terephthalate.

Claim 80

Dependent Claim 19 words

The article of manufacture of claim 21 wherein said base layer of a self-supporting film structure is a polyamide.

Claim 81

Dependent Claim 40 words

The article of manufacture of claim 21 wherein said heat-sealable coating of an ionic copolymer is characterized by an acid monomer content of between about 3.8 and about 13 mol percent, based upon the total weight of said ionic copolymer.

Claim 82

Dependent Claim 19 words

The article of manufacture of claim 21 wherein said monocarboxylic acid in said ionic copolymer coating is methacrylic acid.

Claim 83

Dependent Claim 22 words

A laminated structure comprising a pair of sheets of polyethylene bonded together with an ethylene polymer having recurring units of the structure:

Claim 84

Dependent Claim 22 words

A laminated structure comprising a pair of sheets of polyethylene bonded together with an ethylene polymer having recurring units of the structure:

Claim 85

Dependent Claim 50 words

A film of a polyamide polymer having affixed to at least one of its surfaces a coating of an ethylene-acrylic acid copolymer containing from about 5 to about 39.1 weight percent of acrylic acid, said coating having affixed to its surface a film of a normally solid polyolefinic hydrocarbon polymer.

Claim 86

Dependent Claim 50 words

A film of a polyamide polymer having affixed to at least one of its surfaces a coating of an ethylene-acrylic acid copolymer containing from about 5 to about 39.1 weight percent of acrylic acid, said coating having affixed to its surface a film of a normally solid polyolefinic hydrocarbon polymer.

Claim 87

Dependent Claim 11 words

The article of claim 28 wherein said polyolefinic hydrocarbon is polyethylene.

Claim 88

Dependent Claim 23 words

The article of claim 28 wherein said polyolefinic hydrocarbon is polyethylene having a density from about 0.910 to about 0.940 gram per cc.

Claim 89

Dependent Claim 19 words

The article of claim 28 wherein said polyamide polymer is selected from the group consisting of polycaproamide and poly-11-undecanoamide.

Claim 90

Dependent Claim 120 words

In a continuous method for extrusion coating an ethylene homopolymer onto paperboard in which an ethylene homopolymer is continuously extruded into film, the hot extruded ethylene homopolymer film is continuously laid down on a moving sheet of paperboard stock and the ethylene homopolymer coated paperboard stock is passed through a zone in which pressure is applied to the assembly to firmly bond the ethylene homopolymer to the paperboard stock; the improvement which comprises providing a substantially uniform coating of an ethylene polymer on the surface of the paperboard stock that is to be coated with the ethylene homopolymer; said ethylene polymer having been prepared by the alkaline hydrolysis of an ethylene-alkyl acrylate polymer and having recurring units of the structure:

Claim 91

Dependent Claim 120 words

In a continuous method for extrusion coating an ethylene homopolymer onto paperboard in which an ethylene homopolymer is continuously extruded into film, the hot extruded ethylene homopolymer film is continuously laid down on a moving sheet of paperboard stock and the ethylene homopolymer coated paperboard stock is passed through a zone in which pressure is applied to the assembly to firmly bond the ethylene homopolymer to the paperboard stock; the improvement which comprises providing a substantially uniform coating of an ethylene polymer on the surface of the paperboard stock that is to be coated with the ethylene homopolymer; said ethylene polymer having been prepared by the alkaline hydrolysis of an ethylene-alkyl acrylate polymer and having recurring units of the structure:

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-04-07	1978-10-07	1979-04-08	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-04-07	1982-10-07	1983-04-08	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-04-07	1986-10-07	1987-04-08	$7700.00	Window Closed / Lapsed

Articles coated with hydralyzed copolymer of ethylene and alkyl acrylate

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