US4772518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water reducible acrylic polymer for printing of paper and polyvinyl chloride
Assignee: PPG Industries Inc
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Filing: 1986-10-21
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Granted: 1988-09-20
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Expires: 2006-10-21
Abstract
Abstract Disclosed herein is an acrylic polymer containing an N-methylolamide group an amine group and an acid group; said polymer is useful in inks or varnishes that can be applied effectively to varied substrates such as paper and polyvinyl chloride.
Inventors
- 👤 Jean P. Marthe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:30
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C09D11/107; C08; C08F; C08F220/00; C08F220/02; C08F220/04; C08F220/06; C08F220/10; C08F220/12; C08F220/14; C08F220/16; C08F220/18; C08F220/1804; C08F220/34; C08F220/52; C08F220/54; C08F220/58; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31909
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
118 words
A water-reducible acrylic polymer consisting essentially of a copolymer of monomers: (i) an ethylenically unsaturated monomer containing an N-methylolamide group in an amount of from about 1 to 12 percent by weight based on the total monomer weight, (ii) an ethylenically unsaturated monomer containing a carboxyl group in an amount of from about 3 to 15 percent by weight based on the total monomer weight, (iii) an ethylenically unsaturated monomer containing an amino group in an amount of from 1 to 10 percent by weight based on the total monomer weight, and (iv) an ethylenically unsaturated monomer which is different from (i), (ii), and (iii), said copolymer being characterized by a low degree of self-condensation of methylol groups.
Claim 2
Dependent Claim
118 words
A water-reducible acrylic polymer consisting essentially of a copolymer of monomers: (i) an ethylenically unsaturated monomer containing an N-methylolamide group in an amount of from about 1 to 12 percent by weight based on the total monomer weight, (ii) an ethylenically unsaturated monomer containing a carboxyl group in an amount of from about 3 to 15 percent by weight based on the total monomer weight, (iii) an ethylenically unsaturated monomer containing an amino group in an amount of from 1 to 10 percent by weight based on the total monomer weight, and (iv) an ethylenically unsaturated monomer which is different from (i), (ii), and (iii), said copolymer being characterized by a low degree of self-condensation of methylol groups.
Claim 3
Dependent Claim
17 words
An acrylic polymer of claim 1, wherein the monomer is recited in (i) is N-methylolacrylamide or N-methylolmethacrylamide.
Claim 4
Dependent Claim
21 words
An acrylic polymer of claim 1, wherein the monomer as recited in (ii) is acrylic acid, methacrylic acid, or itaconic acid.
Claim 5
Dependent Claim
23 words
An acrylic polymer as recited in claim 1, wherein the monomer as recited in (iii) is aminoalkyl esters of acrylic or methacrylic acid.
Claim 6
Dependent Claim
33 words
An acrylic polymer of claim 4, wherein the monomer as recited in (iii) is N,N-dimethyl amino-ethyl methacrylate, N,N-dimethyl amino-ethyl acrylate, N,N-diethyl amino-ethyl methacrylate, t-butyl amino-ethyl methacrylate, N-methyl-N-butyl amino-ethyl methacrylate or N,N-dimethyl amino-hexyl acrylate.
Claim 7
Dependent Claim
27 words
An acrylic polymer of claim 1, wherein the monomer of (iv) is an ester of acrylic or methacrylic acid, acrylonitrile, styrene, acrylamide methacrylamide or a mixture thereof.
Claim 8
Dependent Claim
29 words
A process for preparing the acrylic polymer of claim 1, comprising copolymerizing the ethylenically unsaturated monomers of claim 1, by free radical initiated polymerization in a basic solvent medium.
Claim 9
Dependent Claim
18 words
A process of claim 7, wherein the basic solvent medium comprises an organic solvent, water, and a base.
Claim 10
Dependent Claim
18 words
A process of claim 8, wherein the organic solvent is alkylene glycol monoethyl ether or methyl ethyl ketone.
Claim 11
Dependent Claim
13 words
A process of claim 8, wherein the base is ammonia or an amine.
Claim 12
Dependent Claim
19 words
An aqueous composition comprising the acrylic polymer of claim 1, which is at least partially neutralized with a base.
Claim 13
Dependent Claim
10 words
An ink composition containing an acrylic polymer of claim 1.
Claim 14
Dependent Claim
55 words
In an improved process of applying as a varnish or ink composition to a substrate, the improvement comprising effective application to varied substrates of polyvinyl chloride-coated paper and paper which is not coated with polyvinyl chloride, wherein the varnish or ink composition comprises an aqueous composition comprising an acrylic polymer as recited in claim 11.
Claim 15
Dependent Claim
35 words
In an improved process of claim 13 which comprises applying as a varnish or ink composition to a substrate comprising polyvinyl chloride-coated paper, followed by baking the substrates to a temperature sufficient to effect cure.
Claim 16
Dependent Claim
12 words
A printed matter which is prepared by the process of claim 13.
Claim 17
Dependent Claim
12 words
A printed matter which is prepared by the process of claim 14.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |