US4666984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing urethane modified resins and resultant composition
Assignee: Sun Chemical Corp
•
Filing: 1985-12-12
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Granted: 1987-05-19
•
Expires: 2005-12-12
Abstract
Abstract A urethane modified resin is prepared by reacting a resin containing carboxyl groups with an amine-alcohol to form a resin-amine salt, followed by reacting the resin-amine salt with a polyisocyanate.
Inventors
- 👤 Daniel J. Carlick
- 👤 Edward G. Janusz
- 👤 Albert A. Kveglis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:49
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/08; C08G18/0804; C08G18/0833; C08G18/40; C08G18/62; C08G18/6216; C08G18/64
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
35 words
Process for modifying resins comprising: (a) reacting a resin containing carboxyl groups with an amino alcohol to form a resin-amine salt; (b) reacting the resin-amine salt with a polyisocyanate to form a urethane modified resin.
Claim 2
Dependent Claim
35 words
Process for modifying resins comprising: (a) reacting a resin containing carboxyl groups with an amino alcohol to form a resin-amine salt; (b) reacting the resin-amine salt with a polyisocyanate to form a urethane modified resin.
Claim 3
Dependent Claim
12 words
Process of claim 1 wherein the amino alcohol is a polyhydroxy amine.
Claim 4
Dependent Claim
30 words
Process of claim 2 wherein the amino alcohol is present in an amount effective to provide a molar ratio of amine: carboxyl groups in the resin of 0.01:1 to 1:1.
Claim 5
Dependent Claim
21 words
Process of claim 3 wherein the polyhydroxy amine is chosen from the group consisting of tris (hydroxymethyl) aminomethane, triethanolamine and diethanolamine.
Claim 6
Dependent Claim
29 words
Process of claim 4 wherein the amino alcohol is present in an amount effective to provide a molar ratio of amine:carboxyl groups in the resin of 0.7:1 to 1:1.
Claim 7
Dependent Claim
30 words
Process of claim 3 wherein the polyisocyanate is present in an amount effective to provide a molar ratio of isocyanate groups: carboxyl groups in the resin of 0.01:1 to 4:1.
Claim 8
Dependent Claim
14 words
Process of claim 6 wherein the polyisocyanate is an aliphatic, cycloaliphatic or aromatic diisocyanate.
Claim 9
Dependent Claim
24 words
Process of claim 5 wherein the diisocyanate is chosen from the group consisting of tolylene diisocyanate, isophorone diisocyanate, 1,6-hexamethylene diisocyanate and polymeric 1,4-diphenylmethane diisocyanate.
Claim 10
Dependent Claim
30 words
Process of claim 6 wherein the polyisocyanate is present in an amount effective to provide a molar ratio of isocyanate groups: carboxyl groups in the resin of 0.3:1 to 3:1.
Claim 11
Dependent Claim
27 words
Process of claim 3 wherein the polyisocyanate is present in an amount effective to provide a molar ratio of isocyanate groups: hydroxyl groups of 0.01:1 to 1:1.
Claim 12
Dependent Claim
27 words
Process of claim 10 wherein the polyisocyanate is present in an amount effective to provide a molar ratio of isocyanate groups: hydroxyl groups of 0.3:1 to 1:1.
Claim 13
Dependent Claim
14 words
Process of claim 6 wherein the resin has an acid number of above 5.
Claim 14
Dependent Claim
21 words
Process of claim 12 wherein the resin is chosen from the group consisting of modified rosin esters, alkyds and metallized rosin.
Claim 15
Dependent Claim
16 words
Process of claim 12 wherein the resin has an acid number of from 10 to 75.
Claim 16
Dependent Claim
40 words
Process of claim 1 wherein the reaction of Step (a) is carried out at a temperature between 25° C. and 200° C., and the reaction of Step (b) is carried out at a temperature between 80° C. and 150° C.
Claim 17
Dependent Claim
23 words
Process of claim 15 further comprising diluting the urethane modified resin with a solvent to a level of 25 to 75% of non-volatiles.
Claim 18
Dependent Claim
15 words
Process of claim 16 wherein the urethane modified resin has a viscosity of 100-3000 poises.
Claim 19
Dependent Claim
17 words
Process of claim 16 wherein the urethane modified resin has a shortness ratio of 10 to 200.
Claim 20
Dependent Claim
22 words
Process as in claims 1, 4, 6, 8, 13 or 16 further comprising adding the urethane modified resin to a printing ink.
Claim 21
Dependent Claim
22 words
Process as in claims 1, 4, 6, 8, 13 or 16 further comprising adding the urethane modified resin to a coating composition.
Claim 22
Dependent Claim
15 words
Product prepared by the process as in claims 1, 4, 6, 8, 13 or 16.
Claim 23
Dependent Claim
10 words
A resin composition comprising a polymeric urethane modified resin-amine salt.
Claim 24
Dependent Claim
10 words
A resin composition comprising a polymeric urethane modified resin-amine salt.
Claim 25
Dependent Claim
25 words
Composition of claim 21 wherein the resin-amine salt is derived from a resin with a acid number of above 5 reacted with a polyhydroxy amine.
Claim 26
Dependent Claim
19 words
Composition of claim 23 wherein the polymeric urethane modification is derived from a polyisocyanate reacted with the resin-amine salt.
Claim 27
Dependent Claim
10 words
A printing ink containing the resin composition of claim 22.
Claim 28
Dependent Claim
10 words
A coating composition containing the resin composition of claim 22.
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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) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |