US 2011/0033715 A1 · Paper Release Compositions Having Improved Adhesion to Paper and Polymeric Films

Abstract

The present invention relates to curable alkenyl based silicone release coating compositions having improved adhesion to paper and polymeric substrates. Furthermore the present invention relates to the process for making a silicone release coating with improved adhesion to paper and polymeric substrates.

Claims28

Dependent claims

1-43. (canceled)

A laminate having a substrate and a release coating coated upon said substrate,

wherein
said release coating comprises:
(A) an additive for anchorage of a release coating, said additive being a compound of the general formula:
(RaSiO(4−a)/2)n
where n is an integer greater than 3, a ranges from about 1 to about 3, R is independently selected from the group consisting of:
oxirane containing radicals having from one to forty carbon atoms, epoxide containing radicals having from one to forty carbon atoms, carboxylic acid anhydride containing radicals having from one to forty carbon atoms, monovalent hydrocarbon radicals, monovalent hydrocarbonoxy radicals, and hydride atoms, wherein at least one of said oxirane or epoxide or carboxylic acid anhydride containing radicals are present per molecule, and wherein at least one of said hydride atoms are present per molecule;
(B) a curable alkenyl silicone having the formula
MViaTbDcMd
where
MVi=R13−pR2pSiO1/2, where R1 is selected from the group consisting of one to forty carbon monovalent hydrocarbon radicals and R2 is selected from the group consisting of two to forty carbon atom terminal olefinic monovalent hydrocarbon radicals, where p ranges from 1 to 3;
T=R3SiO3/2 where R3 is selected from the group consisting of R1 and R2;
D=R4R5SiO2/2 where R4 and R5 are each independently selected from the group consisting of R1 and R2;
and
M=R13SiO1/2 where each R1 is as previously defined and is independently selected;
wherein a and b have values ranging from 2 to 5, c is an integer ranging from about 50 to about 1,000 and d has a value ranging from 2 to about 0.5;
and
wherein
said release coating composition is cured.

15 more elements

A laminate having a substrate and a release coating coated upon said substrate,

wherein
said release coating comprises:
(A) an additive for anchorage of a release coating, said additive being a compound of the general formula:
(RaSiO(4−a)/2)n
where n is an integer greater than 3, a ranges from about 1 to about 3, R is independently selected from the group consisting of:
oxirane containing radicals having from one to forty carbon atoms, epoxide containing radicals having from one to forty carbon atoms, carboxylic acid anhydride containing radicals having from one to forty carbon atoms, monovalent hydrocarbon radicals, monovalent hydrocarbonoxy radicals, and hydride atoms, wherein at least one of said oxirane or epoxide or carboxylic acid anhydride containing radicals are present per molecule, and wherein at least one of said hydride atoms are present per molecule;
(B) a curable alkenyl silicone having the formula
MViaTbDcMd
where
MVi=R13−pR2pSiO1/2, where R1 is selected from the group consisting of one to forty carbon monovalent hydrocarbon radicals and R2 is selected from the group consisting of two to forty carbon atom terminal olefinic monovalent hydrocarbon radicals, where p ranges from 1 to 3;
T=R3SiO3/2where R3 is selected from the group consisting of R1 and R2;
D=R4R5SiO2/2 where R4 and R5 are each independently selected from the group consisting of R1 and R2;
and
M=R13SiO1/2 where each R1 is as previously defined and is independently selected;
wherein a and b have values ranging from 2 to 5, c is an integer ranging from about 50 to about 1,000 and d has a value ranging from 2 to about 0.5;
(C) a hydrogen siloxane selected from the group of compounds;
MDeD′fM,
MD′fM,
MDeD′fM′,
M′DeD′fM, and
M′DeM′,
where
M=R′3SiO1/2,
M′=HgR′3−gSiO1/2, and
D=R′R′SiO2/2, and
D′=R′HSiO2/2 wherein each R′ in M, M′, D, and D′ is independently selected from the group consisting of one to forty carbon monovalent hydrocarbon radicals wherein the subscripts e and f may be zero or positive whereby the sum of e and r ranges from about 10 to about 100 subject to the limitation that the sum of f and g is two or greater;
(D) a hydrosilylation catalyst;
and
(E) an inhibitor, and wherein
said release coating composition is cured.

27 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/907,281Filed 19 Oct 2010

Priority

12 Feb 2003

Published

10 Feb 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

C08L 83/04
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with…
C08J 3/03
Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques: in aqueous media
C09D 183/04
Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing…:…
C09D 183/06
Polysiloxanes: containing silicon bound to oxygen-containing groups

Family

Application10/365,212Continuation · filed 12 Feb 2003

Application11/345,757Continuation · filed 2 Feb 2006

Application12/907,281Continuation

US 2004/0161618 A1Published application

US 2006/0127682 A1Published application

US 7,090,923 B2Related patent

US 7,842,394 B2Related patent

US 8,343,632 B2Related patent

US 2011/0033715 A1This patent

From the US filing history. Foreign family members aren’t listed.

Abstract

Claims28

Dependent claims

1-43. (canceled)

A laminate having a substrate and a release coating coated upon said substrate,

wherein
said release coating comprises:
(A) an additive for anchorage of a release coating, said additive being a compound of the general formula:
(RaSiO(4−a)/2)n
where n is an integer greater than 3, a ranges from about 1 to about 3, R is independently selected from the group consisting of:
oxirane containing radicals having from one to forty carbon atoms, epoxide containing radicals having from one to forty carbon atoms, carboxylic acid anhydride containing radicals having from one to forty carbon atoms, monovalent hydrocarbon radicals, monovalent hydrocarbonoxy radicals, and hydride atoms, wherein at least one of said oxirane or epoxide or carboxylic acid anhydride containing radicals are present per molecule, and wherein at least one of said hydride atoms are present per molecule;
(B) a curable alkenyl silicone having the formula
MViaTbDcMd
where
MVi=R13−pR2pSiO1/2, where R1 is selected from the group consisting of one to forty carbon monovalent hydrocarbon radicals and R2 is selected from the group consisting of two to forty carbon atom terminal olefinic monovalent hydrocarbon radicals, where p ranges from 1 to 3;
T=R3SiO3/2 where R3 is selected from the group consisting of R1 and R2;
D=R4R5SiO2/2 where R4 and R5 are each independently selected from the group consisting of R1 and R2;
and
M=R13SiO1/2 where each R1 is as previously defined and is independently selected;
wherein a and b have values ranging from 2 to 5, c is an integer ranging from about 50 to about 1,000 and d has a value ranging from 2 to about 0.5;
and
wherein
said release coating composition is cured.

15 more elements

A laminate having a substrate and a release coating coated upon said substrate,

wherein
said release coating comprises:
(A) an additive for anchorage of a release coating, said additive being a compound of the general formula:
(RaSiO(4−a)/2)n
where n is an integer greater than 3, a ranges from about 1 to about 3, R is independently selected from the group consisting of:
oxirane containing radicals having from one to forty carbon atoms, epoxide containing radicals having from one to forty carbon atoms, carboxylic acid anhydride containing radicals having from one to forty carbon atoms, monovalent hydrocarbon radicals, monovalent hydrocarbonoxy radicals, and hydride atoms, wherein at least one of said oxirane or epoxide or carboxylic acid anhydride containing radicals are present per molecule, and wherein at least one of said hydride atoms are present per molecule;
(B) a curable alkenyl silicone having the formula
MViaTbDcMd
where
MVi=R13−pR2pSiO1/2, where R1 is selected from the group consisting of one to forty carbon monovalent hydrocarbon radicals and R2 is selected from the group consisting of two to forty carbon atom terminal olefinic monovalent hydrocarbon radicals, where p ranges from 1 to 3;
T=R3SiO3/2where R3 is selected from the group consisting of R1 and R2;
D=R4R5SiO2/2 where R4 and R5 are each independently selected from the group consisting of R1 and R2;
and
M=R13SiO1/2 where each R1 is as previously defined and is independently selected;
wherein a and b have values ranging from 2 to 5, c is an integer ranging from about 50 to about 1,000 and d has a value ranging from 2 to about 0.5;
(C) a hydrogen siloxane selected from the group of compounds;
MDeD′fM,
MD′fM,
MDeD′fM′,
M′DeD′fM, and
M′DeM′,
where
M=R′3SiO1/2,
M′=HgR′3−gSiO1/2, and
D=R′R′SiO2/2, and
D′=R′HSiO2/2 wherein each R′ in M, M′, D, and D′ is independently selected from the group consisting of one to forty carbon monovalent hydrocarbon radicals wherein the subscripts e and f may be zero or positive whereby the sum of e and r ranges from about 10 to about 100 subject to the limitation that the sum of f and g is two or greater;
(D) a hydrosilylation catalyst;
and
(E) an inhibitor, and wherein
said release coating composition is cured.

27 more elements

Dependencies are inferred from the claim text.

Paper Release Compositions Having Improved Adhesion to Paper and Polymeric Films

Life of this patent

Abstract

Claims28

Paper Release Compositions Having Improved Adhesion to Paper and Polymeric Films

Life of this patent

Abstract

Claims28