US4981903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxane-grafter copolymer topical binder composition with novel hydrophilic monomers and method of coating therewith
Assignee: 3M Co
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Filing: 1989-08-07
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Granted: 1991-01-01
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Expires: 2009-08-07
Abstract
Abstract A novel composition which can serve as a pressure-sensitive or non-pressure sensitive adhesive at room temperature (20° C.) and which comprises a vinyl polymeric backbone with grafted pendant siloxane polymeric moieties. Also disclosed are topical binder compositions containing the novel composition.
Inventors
- 👤 James E. Garbe
- 👤 Smarajit Mitra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:05
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/89; A61K8/895; A61K9/00; A61K9/70; A61K9/7023; A61Q; A61Q19/00; A61Q5/00; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1804; C08F290/00; C08F290/02; C08F290/06; C08F290/068
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
186 words
A composition comprising: (a) a copolymer which comprises repeating A, B, and C monomers wherein: A is at least one free radically polymerizable acrylic or methacrylic monomer present in 0.1-99.9% by weight of all monomer present; B is at least one highly polar acrylic or methacrylic monomer copolymerizable with A and different from A, the amount by weight of B monomer being from 0.1 to 99.9% of the total weight of all monomers in said copolymer; and C is a monomer present as from 0.01 to 50% by weight of all monomer present and having the general formula X(Y).sub.n Si(R).sub.3-m Z.sub.m wherein: X is a vinyl group copolymerizable with the A and B monomers; Y is a divalent linking group; R is hydrogen, lower alkyl, aryl, or alkoxy; Z is a monovalent siloxane polymeric moiety having a number average molecular weight of at least about 500 and is essentially unreactive under copolymerization conditions; n is zero or 1; m is an integer of from 1 to 3; and (b) from 0 to about 500 parts by weight of compatible solvent or plasticizer per 10 parts copolymer.
Claim 2
Dependent Claim
186 words
A composition comprising: (a) a copolymer which comprises repeating A, B, and C monomers wherein: A is at least one free radically polymerizable acrylic or methacrylic monomer present in 0.1-99.9% by weight of all monomer present; B is at least one highly polar acrylic or methacrylic monomer copolymerizable with A and different from A, the amount by weight of B monomer being from 0.1 to 99.9% of the total weight of all monomers in said copolymer; and C is a monomer present as from 0.01 to 50% by weight of all monomer present and having the general formula X(Y).sub.n Si(R).sub.3-m Z.sub.m wherein: X is a vinyl group copolymerizable with the A and B monomers; Y is a divalent linking group; R is hydrogen, lower alkyl, aryl, or alkoxy; Z is a monovalent siloxane polymeric moiety having a number average molecular weight of at least about 500 and is essentially unreactive under copolymerization conditions; n is zero or 1; m is an integer of from 1 to 3; and (b) from 0 to about 500 parts by weight of compatible solvent or plasticizer per 10 parts copolymer.
Claim 3
Dependent Claim
38 words
The composition of claim 1 wherein said A monomer is a methacrylic or acrylic acid ester of an alcohol having from 1 to 18 carbon atoms with the average number of carbon atoms being about 4 to 12.
Claim 4
Dependent Claim
19 words
The composition of claim 2 wherein the average number of carbon atoms in A is about 6 to 10.
Claim 5
Dependent Claim
51 words
The composition of claim 1 wherein said B is a mono-or multifunctional hydroxy group containing molecules represented by the general formula: CH.sub.2 ═CR.sup.2 --CO--L--R.sup.3 --(OH).sub.d where R 2 =H, methyl, ethyl, cyano or carboxymethyl, L=O,NH, d=1-3 and R 3 is a hydrocarbyl radical of valence d+1 containing from 1-12 carbon atoms.
Claim 6
Dependent Claim
23 words
The composition of claim 1 wherein said B monomer comprises about 2% to about 15% by weight of all monomers in said copolymer.
Claim 7
Dependent Claim
41 words
The composition of claim 1 wherein said X group of said C monomer has the general formula ##STR7## wherein R 7 is hydrogen or a COOH group and R 8 is hydrogen, a methyl group, or a CH 2 COOH group.
Claim 8
Dependent Claim
52 words
The composition of claim 1 wherein said Z group of said C monomer has the general formula ##STR8## wherein: R 9 and R 11 are independently lower alkyl, aryl, or fluoroalkyl; R 10 is alkyl, alkoxy, alkylamino, aryl, hydroxyl, or fluoroalkyl; and e is an integer from about 5 to about 700.
Claim 9
Dependent Claim
53 words
The composition of claim 1 wherein said C monomer has a general formula selected from the group consisting of ##STR9## wherein R" is alkyl or hydrogen; m is 1, 2 or 3; g is zero or 1; f is an integer from 2 to 6; h is an integer from 0 to 2.
Claim 10
Dependent Claim
23 words
The composition of claim 1 wherein the molecular weight of said C monomer is in the range of about 500 to about 50,000.
Claim 11
Dependent Claim
23 words
The composition of claim 1 wherein the molecular weight of said C monomer is in the range of about 5,000 to about 25,000.
Claim 12
Dependent Claim
32 words
The composition of claim 1 wherein the amount by weight of said C monomer is within the range of about 0.01 to about 50% of the total monomer weight in said copolymer.
Claim 13
Dependent Claim
36 words
The composition of claim 1 wherein the amount by weight of said B plus C monomers is within the range of about 5 to about 60% of the total weight of all monomers in said copolymer.
Claim 14
Dependent Claim
10 words
The composition of claim 1 further characterized by being crosslinked.
Claim 15
Dependent Claim
95 words
The composition of claim 1 wherein said B monomer comprises a compound of the formulae: CH.sub.2 ═CR.sup.2 --CO--L--R.sup.3 --(NR.sup.4 R.sup.5).sub.d or ##STR10## wherein: R 2 is H, methyl, ethyl cyano or carboxymethyl, L is oxygen or --NH--, d is 1, 2 or 3, R 3 is a hydrocarbyl radical of valence (d+1) having 1-12 carbon atoms, R 4 and R 5 are independently H, alkyl groups of 1-12 carbon atoms, or together constitute a carbocyclic or heterocyclic group, R 6 is H or alkyl group of 1-12 carbon atoms, and Q - is an anion.
References Cited (Backward Citations)
US4728571A
Cited
US4693935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |