US4910249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic polymers
Assignee: PPG Industries Ohio Inc
•
Filing: 1988-05-02
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Granted: 1990-03-20
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Expires: 2008-05-02
Abstract
Abstract An acrylic copolymer reaction product of a primary amine group-containing copolymerizable vinyl monomer and an ethylenically unsaturated copolymerizable monomer is disclosed. Further, pigment dispersions, including the copolymer reaction product, pigment, and a liquid carrier, are disclosed.
Inventors
- 👤 Charles M. Kania
- 👤 Gregory J. McCollum
- 👤 Masayuki Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:19
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/34; C08F212/00; C08F212/02; C08F212/04; C08F212/14; C08F212/26; C08F220/20; C09; C09D; C09D17/00; C09D17/002
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
26 words
A composition of matter comprising an acrylic polymer having pendent tertiary alkyl primary amine groups and at least one other pendent functionality reactive with isocyanate groups.
Claim 2
Dependent Claim
26 words
A composition of matter comprising an acrylic polymer having pendent tertiary alkyl primary amine groups and at least one other pendent functionality reactive with isocyanate groups.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein the acrylic polymer includes pendent carboxylic acid groups.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein the acrylic polymer includes pendent hydroxyl groups.
Claim 5
Dependent Claim
13 words
The composition of claim 2 wherein the acrylic polymer includes pendent hydroxyl groups.
Claim 6
Dependent Claim
49 words
A pigment dispersion composition comprising: (a) from about 1 to about 50 percent by weight of an acrylic polymer having pendent tertiary alkyl primary amine groups as a dispersant; (b) from about 10 to about 90 percent by weight of a pigment; and (c) the balance a liquid carrier.
Claim 7
Dependent Claim
49 words
A pigment dispersion composition comprising: (a) from about 1 to about 50 percent by weight of an acrylic polymer having pendent tertiary alkyl primary amine groups as a dispersant; (b) from about 10 to about 90 percent by weight of a pigment; and (c) the balance a liquid carrier.
Claim 8
Dependent Claim
40 words
The composition of claim 5 wherein the pendent tertiary alkyl primary amine groups are of the formula: ##STR4## wherein R 3 represents an aromatic hydrocarbon moiety and R 4 is an alkyl radical having from 1 to 3 carbon atoms.
Claim 9
Dependent Claim
27 words
The composition of claim 6 wherein the acrylic polymer further includes pendent groups selected from the group consisting of carboxylic acid groups, hydroxyl groups or mixtures thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |