Back to results
US 8,455,076 B2Granted
Paper substrates useful as universal release liners
AssigneeInternational Paper Company
InventorsSteven D. Schultz, Timothy J. Bradford, Kosaraju K. Mohan
Life of this patent
Estimating the term…
Abstract
This invention relates to a paper substrate useful as a universal release liner, as well as methods of making and using the same.
Claims11
A composite structure, comprising:
- a paper substrate comprising a web comprising a plurality of cellulosic fibers;
- a coating layer applied to at least one surface of said web;
- wherein the coated web comprises at least one supercalendered coated surface having a Parker Print Smoothness ranging from about 1.0 to about 3.0 as measured by TAPPI test method T 555 om-99, said coating layer comprising at least one latex and at least one calcium carbonate, wherein said latex:
- has a Tg ranging from about 4 to about 10° C.;
- has a modulus ranging from about 7×106 to about 3×107 dyn/cm2 at a temperature range of from about 120 to about 200° F.;
- and
- contains no platinum catalyst inhibitor, wherein the platinum catalyst inhibitor is one or more platinum-catalyst inhibiting compound selected from the group consisting of amine, amide, neutralizing amine, ethanolamine, N,N-methylethanolamine, triethanolamine, N,N-dimethyl ethanolamine, n-butylamine, diethylamine, triethylamine, tetramethylenediamine, cyclohexylamine, melamine, dimethylformamide, nitrile, cyanate, oximo, nitroso, hydrazo, azo, adiponitrile, 2-butoxime, alpha-nitroso-betanaphthol, chelate, EDTA, NTA, sulfur-containing compound, sulfide, thio, tin-containing compound, tin salt, phosphorus-containing compound, phosphine, phosphites, arsenic-containing compound, antimony-containing compound, selenium-containing compound, tellurim-containing compound, chlorinated hydrocarbon-containing solvent with amine stabilizer, chlorinated hydrocarbon-containing monomer with amine stabilizer, alcohol solvent, ester solvent, ethanol, methanol, ethyl acetate, vinyl acetate, unsaturated compound, and any combination thereof;
- and a release layer applied to the coated layer, said release layer comprising a silicone-containing release agent.
5 more elements
A composite structure having a basis weight of from about 75 to about 100 lb/3300 ft2, and comprising:
- a web of cellulose fibers having at least one surface;
- at least one coating layer on said at least one surface of said web;
- wherein the coated web comprises at least one supercalendered coated surface having a Parker Print Smoothness ranging from 1.0 to 3.0 as measured by TAPPI test method T 555om-99, the coating layer comprising from about 20 to about 30 parts of at least one latex based upon the weight of the coating layer, and from about 15 to about 25 parts of at least one calcium carbonate based upon the weight of the coating layer, wherein said latex:
- has a Tg ranging from about 4 to about 10° C.;
- has a modulus ranging from about 7×106 to about 3×107 dyn/cm2 at a temperature range of from about 120 to about 200° F.;
- and
- contains no platinum catalyst inhibitor, wherein the platinum catalyst inhibitor is one or more platinum-catalyst inhibiting compound selected from the group consisting of amine, amide, neutralizing amine, ethanolamine, N,N-methylethanolamine, triethanolamine, N,N-dimethyl ethanolamine, n-butylamine, diethylamine, triethylamine, tetramethylenediamine, cyclohexylamine, melamine, dimethylformamide, nitrite, cyanate, oximo, nitroso, hydrazo, azo, adiponitrile, 2-butoxime, alpha-nitroso-betanaphthol, chelate, EDTA, NTA, sulfur-containing compound, sulfide, thio, tin-containing compound, tin salt, phosphorus-containing compound, phosphine, phosphites, arsenic-containing compound, antimony-containing compound, selenium-containing compound, tellurim-containing compound, chlorinated hydrocarbon-containing solvent with amine stabilizer, chlorinated hydrocarbon-containing monomer with amine stabilizer, alcohol solvent, ester solvent, ethanol, methanol, ethyl acetate, vinyl acetate, unsaturated compound, and any combination thereof;
- and a release layer applied to the coated layer, said release layer comprising a silicone-containing release agent.
5 more elements
Dependencies are inferred from the claim text.