Coated synthetic paper and a method of producing the same

Claim 2

A COATED SYNTHETIC PAPER FROM ABOUT 15 TO 300 MICRONS IN THICKNESS COMPRISING A PLASTIC FILM COATED ON AT LEAST ONE SIDE WITH FROM ABOUT 5 TO 40 GRAMS PER SQUARE METER OF AN OPAQUE, PRINTABLE, PIGMENT CONTAINING COAT COMPRISING TWO LAYERS, THE TOP LALYER CONTAINING FOR EACH 100 PARTS OF PIGMENT FROM ABOUT 12 TO 20 PARTS OF AN ANIONIC LATEX TYPE BINDER, FROM ABOUT 0.2 TO 0.7 PARTS OF DISPERSING AGENT AND FROM ABOUT 2 TO 20 PARTS OF SATIN WHITE, FROM 0.75 TO 4.5 PARTS OF A NON-IONIC SURFACTANT PROTECTIVE AGENT AND FROM 0.15 TO 3 PARTS OF A HEAT SENSITIVE COAGULATING AGENT, SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE SALTS OF DIVALENT LEAD, ZINC, MAGNESIUM, CALCIUM, STRONTIUM AND BARIUM AND TRIVALENT CHROMIUM AND ALUMINUM IN COMBINATION WITH A MEMBER OF THE GROUP CONSISTING OF SULFATE, PHOSPHITE, NITRATE AND ISOCYANATE AND HALOGEN IONS; POLYVINYL METHYL ETHER, POLYPROPYLENE GLYCOL; AND CATIONIC SURFACE ACTIVE AGENT HAVING BOTH A HYDROPHOBIC GROUP SELECTED FROM THE GROUP CONSISTING OF HIGHER ALKYL AMINES, HIGHER ALKYL HALIDES AND HIGHER FATTY ACIDS, AND A HYDROPHILIC GROUP CONSISTING OF PYRIDINE, INORGANIC ACIDS, ETHYLENE OXIDE, ETHANOLAMINES, A SYMMETRICAL DIAMINES, AMINOETHANOLAMINE AND POLYETHYLENE-POLYAMINES.

Claim 3

A synthetic paper as in claim 1 wherein the film is selected from the group consisting of polystyrene, polyvinyl chloride and polyethylene.

Claim 4

A synthetic paper as in claim 1 wherein the binder is a butadiene-methyl methacrylate copolymer.

Claim 5

A process for the preparation of a coated synthetic paper from about 15 to 300 microns in thickness which comprises coating a plastic film on at least one side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1000 cps, said composition containing for each 100 parts of pigment from about 28 to 100 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersing agent, 2 to 20 parts of satin white and from 0.75 to 4.5 parts of a non-ionic surfactant protecting agent, and thereafter drying at a temperature of from about 20*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 10 minutes, then again coating the resulting coated film over the coated side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1000 cps, said composition containing for each 100 parts of pigment from about 12 to 20 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersiNg agent and 2 to 20 parts of satin white and thereafter drying at a temperature of from about 20*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 10 minutes.

Claim 6

A process for the preparation of a coated synthetic paper from about 15 to 300 microns in thickness which comprises coating a plastic film on at least one side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1000 cps, said composition containing for each 100 parts of pigment from about 28 to 100 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersing agent, 2 to 20 parts of satin white and from 0.75 to 4.5 parts of a non-ionic surfactant protecting agent, and thereafter drying at a temperature of from about 20*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 10 minutes, then again coating the resulting coated film over the coated side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1000 cps, said composition containing for each 100 parts of pigment from about 12 to 20 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersiNg agent and 2 to 20 parts of satin white and thereafter drying at a temperature of from about 20*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 10 minutes.

Claim 7

A process as in claim 4 wherein drying of the first layer is effected at a temperature of from about 70*C to a temperature which is about 50*C above the softening point of the plastic film during a period of from about 10 seconds to 2 minutes and drying of the second layer is effected in two steps, the first step being a temperature from about 70*C to a temperature which is about 50*C above the softening point of the plastic film until the viscosity of the coating is from about 1,800 to 2,000 cps, the second step being at about 20*C to 60*C for from about 3 to 10 minutes.

Claim 8

A process as in claim 4 wherein drying of each layer is effected in two steps, the first step being from about 70*C to a temperature which is about 50*C above the softening point of the plastic film until the viscosity of the coating is from about 1, 800 to 2,000 cps, the second step being at about 20*C to 60*C for from about 3 to 10 minutes.

Claim 9

A coated synthetic paper from about 15 to 300 microns in thickness comprising a plastic film coated on at least one side with from about 5 to 40 grams per square meter of an opaque, printable, pigment containing coat comprising two layers, the top layer containing for each 100 parts of pigment from about 12 to 20 parts of an anionic latex type binder, from about 0.2 to 0.7 parts of dispersing agent, from 0.75 to 4.5 part of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent and the bottom layer containing for each 100 parts of pigment from about 28 to 100 parts of an anionic latex type binder, from about 0.2 to 0.7 parts of dispersing agent, from 0.75 to 4.5 part of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent.

Claim 10

A coated synthetic paper from about 15 to 300 microns in thickness comprising a plastic film coated on at least one side with from about 5 to 40 grams per square meter of an opaque, printable, pigment containing coat comprising two layers, the top layer containing for each 100 parts of pigment from about 12 to 20 parts of an anionic latex type binder, from about 0.2 to 0.7 parts of dispersing agent, from 0.75 to 4.5 part of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent and the bottom layer containing for each 100 parts of pigment from about 28 to 100 parts of an anionic latex type binder, from about 0.2 to 0.7 parts of dispersing agent, from 0.75 to 4.5 part of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent.

Claim 11

A synthetic paper as in claim 7 wherein the heatsensitive coagulating agent is selected from the group consisting of water soluble salts of divalent lead, zinc, magnesium, calcium, strontium and barium and trivalent chromium and aluminum in combination with a member of the group consisting of sulphate, phosphate, nitrate and isocyanate and halogen ions; polyvinyl methyl ether, polypropylene glycol; and cationic surface active agents having both a hydrophobic group selected from the group consisting of higher alkyl amines, higher alkyl halides and higher fatty acids, and a hydrophilic group consisting of pyridine, inorganic acids, ethylene oxide, ethanolamines, asymmetrical diamines, aminoethanolamine and polyethylene-polyamines.

Claim 12

A synthetic paper as in claim 7 wherein the film is selected from the group consisting of polystyrene, polyvinyl chloride and polyethylene.

Claim 13

A synthetic paper as in claim 7 wherein the binder is a butadiene-methyl methacrylate copolymer.

Claim 14

A process for the preparation of a coated synthetic paper from about 15 to 300 microns in thickness which comprises coating a plastic film on at least one side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1000 cps, said composition containing for each 100 parts of pigment from about 28 to 100 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersing agent, from 0.75 to 4.5 parts of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent and thereafter drying at a temperature of from about 70*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 2 minutes, then again coating the resulting coated film over the coated side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1,000 cps, said composition containing for each 100 parts of pigment from about 12 to 20 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersing agent, from 0.75 to 4.5 part of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent and thereafter drying in two steps, the first step being a temperature of from about 20*C to 60*C until the viscosity of the coating is from about 1,800 to 2, 000 cps, the second step being at a temperature of from about 70*C to a temperature which is about 50*C above the softening point of the plastic film for from 10 seconds to 2 minutes.

Claim 15

A process for the preparation of a coated synthetic paper from about 15 to 300 microns in thickness which comprises coating a plastic film on at least one side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1000 cps, said composition containing for each 100 parts of pigment from about 28 to 100 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersing agent, from 0.75 to 4.5 parts of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent and thereafter drying at a temperature of from about 70*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 2 minutes, then again coating the resulting coated film over the coated side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to 1,000 cps, said composition containing for each 100 parts of pigment from about 12 to 20 parts of an anionic latex type binder, from about 0.2 to 0.7 part of dispersing agent, from 0.75 to 4.5 part of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent and thereafter drying in two steps, the first step being a temperature of from about 20*C to 60*C until the viscosity of the coating is from about 1,800 to 2, 000 cps, the second step being at a temperature of from about 70*C to a temperature which is about 50*C above the softening point of the plastic film for from 10 seconds to 2 minutes.

Claim 16

A coated synthetic paper from about 15 to 300 microns in thickness comprising a plastic film coated on at least one side with from about 5 to 40 grams per square meter of an opaque, printable, pigment containing coat, there being for each 100 parts of pigment from about 12 to 100 parts of and anionic latex type binder, from 0.2 to 0.7 part of a dispersing agent, from about 2 to 20 parts of satin white, from 0.75 to 4.5 parts of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent.

Claim 17

A coated synthetic paper from about 15 to 300 microns in thickness comprising a plastic film coated on at least one side with from about 5 to 40 grams per square meter of an opaque, printable, pigment containing coat, there being for each 100 parts of pigment from about 12 to 100 parts of and anionic latex type binder, from 0.2 to 0.7 part of a dispersing agent, from about 2 to 20 parts of satin white, from 0.75 to 4.5 parts of a non-ionic surfactant protective agent and from 0.15 to 3 parts of a heat sensitive coagulating agent.

Claim 18

A synthetic paper as in claim 12 wherein the heatsensitive coagulating agent is selected from the group consisting of water soluble salts of divalent lead, zinc, magnesium, calcium, strontium and barium and trivalent chromium and aluminum in combination with a member of the group consisting of sulphate, phosphate, nitrate and isocyanate and halogen ions; polyvinyl methyl ether, polypropylene glycol; and cationic surface active agents having both a hydrophobic group selected from the group consisting of higher alkyl amines, higher alkyl halides and higher fatty acids, and a hydrophilic group consisting of pyridine, inorganic acids, ethylene oxide, ethanolamines, asymmetrical diamines, aminoethanolamine and polyethylene-polyamines.

Claim 19

A synthetic paper as in claim 12 wherein the coat comprises two layers, the binder content of the top layer being from about 12 to 20 parts binder per 100 parts of pigment, the binder content of the bottom layer being from about 28 to 100 parts binder per 100 parts of pigment.

Claim 20

A synthetic paper as in claim 12 wherein the coat is a one layer coat containing from about 20 to 26 parts binder per 100 parts of pigment.

Claim 21

A synthetic paper as in claim 12 wherein the film is selected from the group consisting of polystyrene, polyvinyl chloride and polyethylene.

Claim 22

A synthetic paper as in claim 12 wherein the binder is a butadiene-methyl methacrylate copolymer.

Claim 23

A process for the preparation of a coated synthetic paper from about 15 to about 300 microns in thickness which comprises coating a plastic film on at least one side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to about 1,000 cps, said composition containing for each 100 parts of pigment from about 12 to 100 parts of an anionic latex type binder, from 0.2 to 0.7 part of a dispersing agent, from about 2 to 20 parts of satin white, from 0.75 to 4.5 parts of a non-ionic surfactant protective agent and from 0.15 to 3 parts of A heatsensitive coagulating agent and thereafter drying at a temperature of from about 20*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 10 minutes.

Claim 24

A process for the preparation of a coated synthetic paper from about 15 to about 300 microns in thickness which comprises coating a plastic film on at least one side with from about 8 to 130 grams per square meter of an aqueous, pigment containing composition having a viscosity of from about 50 to about 1,000 cps, said composition containing for each 100 parts of pigment from about 12 to 100 parts of an anionic latex type binder, from 0.2 to 0.7 part of a dispersing agent, from about 2 to 20 parts of satin white, from 0.75 to 4.5 parts of a non-ionic surfactant protective agent and from 0.15 to 3 parts of A heatsensitive coagulating agent and thereafter drying at a temperature of from about 20*C to a temperature which is about 50*C above the softening point of the plastic film for a period of from about 10 seconds to 10 minutes.

Claim 25

A process as in claim 18 wherein drying is effected at a temperature of from about 80*C to a temperature which is about 50*C above the softening point of the plastic during a period of from about 10 seconds to 2 minutes.

Claim 26

A process as in claim 18 wherein drying is effected in two steps, the first step being from about 70*C to a temperature which is about 50*C above the softening point of the plastic film until the viscosity of the coating is from about 1800 to 200 cps, the second step being at about 20*C to 60*C for from about 3 to 10 minutes.

Claim 27

A process as in claim 18 wherein drying is effected in two steps, the first step being at about 20*C to 60*C until the viscosity of the coating is from about 1,800 to 2,000 cps, the second step being from about 70*C to a temperature which is about 50*C above the softening point of the plastic film for 10 seconds to 2 minutes.

Claim 28

A synthetic paper as in claim 1 wherein up to about 10 percent of the latex type binder is replaced with a nonlatex type binder.

Claim 29

A process as in claim 4 wherein up to about 10 percent of the latex type binder in at least one layer is replaced with a non-latex type binder.

Claim 30

A coated synthetic paper as in claim 7 wherein up to about 10 percent of the latex type binder in at least one layer is replaced with a non-latex type binder.

Claim 31

A process as in claim 11 wherein up to about 10 percent of the latex type binder in at least one layer is replaced with a non-latex type binder.

Claim 32

A coated synthetic paper as in claim 12 wherein up to about 10percent of the latex type binder is replaced with a non-latex type binder.

Claim 33

A process as in claim 18 wherein up to about 10 percent of the latex type binder is replaced with a non-latex type binder.