US4178186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin for coatings
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1976-02-05
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Granted: 1979-12-11
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Expires: 1996-02-05
Abstract
Abstract A resin for coatings, particularly useful as a medium for printing inks and paints, comprising a modified polymer produced by adding at least one alpha , beta -unsaturated dicarboxylic acid or anhydride thereof to at least one liquid conjugated diolefinic polymer having a number average molecular weight of 150 to 3,000, a viscosity of 2 to 5,000 cps at 30 DEG C. and at least 50% of cis-1,4 structure and subjecting the resulting adduct to imidation or diamidation with at least one amine having 1 to 27 carbon atoms and whereby the total amine value of the resulting modified polymer being made not more than 3.
Inventors
- 👤 Seimei Yasui
- 👤 Minoru Hino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:47
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/36; C08C19/28
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
99 words
A resin for coatings comprising a modified polymer consisting of an adduct of at least one liquid conjugated diolefinic polymer having a number average molecular weight of 150 to 3,000, a viscosity of 2 to 5,000 cps at 30° C., and at least 50% of cis-1,4 structure with at least one α,β-unsaturated dicarboxylic acid or anhydride thereof, wherein the carboxyl group or the carboxylic anhydride group is imidated by reacting with at least one primary amine having 1 to 27 carbon atoms and thereby the total amine value of the resulting modified polymer is made not more than 3.
Claim 2
Dependent Claim
99 words
A resin for coatings comprising a modified polymer consisting of an adduct of at least one liquid conjugated diolefinic polymer having a number average molecular weight of 150 to 3,000, a viscosity of 2 to 5,000 cps at 30° C., and at least 50% of cis-1,4 structure with at least one α,β-unsaturated dicarboxylic acid or anhydride thereof, wherein the carboxyl group or the carboxylic anhydride group is imidated by reacting with at least one primary amine having 1 to 27 carbon atoms and thereby the total amine value of the resulting modified polymer is made not more than 3.
Claim 3
Dependent Claim
34 words
The resin according to claim 1, wherein the α,β-unsaturated dicarboxylic acid or anhydride thereof is a member selected from the group consisting of maleic acid, maleic anhydride, fumaric acid, itaconic acid and citraconic acid.
Claim 4
Dependent Claim
28 words
The resin according to claim 1, wherein the α,β-unsaturated dicarboxylic acid or anhydride thereof is a member selected from the group consisting of maleic acid and maleic anhydride.
Claim 5
Dependent Claim
23 words
The resin according to claim 1, wherein the adduct contains 3 to 50% by weight of the α,β-unsaturated dicarboxylic acid or anhydride thereof.
Claim 6
Dependent Claim
40 words
The resin according to claim 1, wherein the liquid conjugated diolefinic polymer is a member selected from the group consisting of a liquid polybutadiene, a liquid polyisoprene, a liquid butadiene-isoprene copolymer, a liquid butadiene-styrene copolymer and a liquid isoprene-styrene copolymer.
Claim 7
Dependent Claim
88 words
A process for producing a resin for coatings, which comprises adding at least one α,β-unsaturated dicarboxylic acid or anhydride thereof to at least one liquid conjugated diolefinic polymer having a number average molecular weight of 150 to 3,000, a viscosity of 2 to 5,000 cps at 30° C. and at least 50% of cis-1,4 structure, and reacting the resulting adduct with at least one primary amine having 1 to 27 carbon atoms, whereby the total amine value of the resulting modified polymer being made not more than 3.
Claim 8
Dependent Claim
88 words
A process for producing a resin for coatings, which comprises adding at least one α,β-unsaturated dicarboxylic acid or anhydride thereof to at least one liquid conjugated diolefinic polymer having a number average molecular weight of 150 to 3,000, a viscosity of 2 to 5,000 cps at 30° C. and at least 50% of cis-1,4 structure, and reacting the resulting adduct with at least one primary amine having 1 to 27 carbon atoms, whereby the total amine value of the resulting modified polymer being made not more than 3.
Claim 9
Dependent Claim
40 words
The process according to claim 6, wherein the liquid conjugated diolefinic polymer is a member selected from the group consisting of a liquid polybutadiene, a liquid polyisoprene, a liquid butadiene-isoprene copolymer, a liquid butadiene-styrene copolymer and a liquid isoprene-styrene copolymer.
Claim 10
Dependent Claim
34 words
The process according to claim 6, wherein the α,β-unsaturated dicarboxylic acid or anhydride thereof is a member selected from the group consisting of maleic acid, maleic anhydride, fumaric acid, itaconic acid and citraconic acid.
Claim 11
Dependent Claim
28 words
The process according to claim 6, wherein the α,β-unsaturated dicarboxylic acid or anhydride thereof is a member selected from the group consisting of maleic acid and maleic anhydride.
Claim 12
Dependent Claim
66 words
The process according to claim 6, wherein the primary amine having 1 to 27 carbon atoms is a member selected from the group consisting of methylamine, ethylamine, propylamine, butylamine, amylamine, hexylamine, oxtylamine, nonylamine, decylamine, undecylamine, dodecylamine, tridecylamine, tetradecylamine, pentadecylamine, hexadecylamine, heptadecylamine, octadecylamine, docosylamine, isopropylamine, isobutylamine, sec-butylamine, tert-butylamine, 2-aminopentane, 3-aminopentane, 1-amino-2-methylbutane, 2-amino-2-methylbutane, 3-amino-2-methylbutane, 4-amino-2-methylbutane, 1-amino-2,2-dimethylpropane, 5-amino-2-methylpentane and aniline, and a mixture of two or more kinds thereof.
Claim 13
Dependent Claim
45 words
A printing ink comprising 3 to 50% by weight of the resin set forth in claim 1, and the remaining amount being a conventional printing ink component selected from at least one member of the group consisting of pigments, solvents, resins, driers, and ultraviolet absorbents.
Claim 14
Dependent Claim
43 words
A paint composition comprising 5 to 80% by weight of the resin set forth in claim 1, and the remaining amount being a conventional paint component selected from at least one member of the group consisting of pigments, solvents, resins, and metallic driers.
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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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |