US5525662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Functionalization of polymers via enamine of acetoacetate
Assignee: Rohm and Haas Co
•
Filing: 1993-07-14
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Granted: 1996-06-11
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Expires: 2013-07-14
Abstract
Abstract The present invention relates to the preparation of polymers bearing reactive functional groups. More particularly, this invention relates to the preparation of polymers containing functional acetoacetate groups and then following the polymerization reacting the acetoacetate group with a functional amine to form an enamine. Polymers of the present invention have many uses including coatings, sealants, adhesives and saturant applications, and are most useful as solutions or dispersions in water or water-cosolvent mixtures.
Inventors
- 👤 Alvin C. Lavoie
- 👤 Daniel A. Bors
- 👤 Ward T. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
C; C08; C08F; C08F8/00; C07; C07C; C07C251/00; C07C251/02; C07C251/04; C07C251/10; C07C251/12; C07C229/00; C07C229/02; C07C229/30; C08F8/30; C08F8/32; C08F2800/00; C08F2800/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
45 words
A process for producing storage stable functional polymers comprising reacting an aqueous acetoacetate-functional polymer with a compound which has primary amine and at least one other type of functional group at conditions which favor formation of the enamine and storing the resulting liquid aqueous composition.
Claim 2
Dependent Claim
45 words
A process for producing storage stable functional polymers comprising reacting an aqueous acetoacetate-functional polymer with a compound which has primary amine and at least one other type of functional group at conditions which favor formation of the enamine and storing the resulting liquid aqueous composition.
Claim 3
Dependent Claim
57 words
A process for preparing an aqueous polymer having functional groups comprising polymerizing a monomer mixture which contains acetoacetate monomer at conditions which are incompatible with a functional group and then after polymerization, reacting the acetoacetate-functional polymer product with a compound which has primary amine and the incompatible functional group at conditions which favor formation of the enamine.
Claim 4
Dependent Claim
57 words
A process for preparing an aqueous polymer having functional groups comprising polymerizing a monomer mixture which contains acetoacetate monomer at conditions which are incompatible with a functional group and then after polymerization, reacting the acetoacetate-functional polymer product with a compound which has primary amine and the incompatible functional group at conditions which favor formation of the enamine.
Claim 5
Dependent Claim
38 words
The process of claims 1 or 2 wherein the amount of functional amine can be varied over a range of from about 0.1 equivalence to about 1.5 equivalence of amine, based on the amount of acetoacetate functional group.
Claim 6
Dependent Claim
21 words
The process of claims 1 or 2 wherein the Tg of the polymer is modified by the addition of functional amines.
Claim 7
Dependent Claim
32 words
The process of claim 2 wherein the polymerization is a free radical polymerization and the incompatible functional group is selected from the group consisting of mercaptan, olefinic and secondary amine functional groups.
References Cited (Backward Citations)
US3328325A
Cited
US3467610A
Cited
US4150005A
Cited
US4626567A
Cited
US4908403A
Cited
US4987186A
Cited
US4988762A
Cited
EP0358358A2
Cited
US4960924A
Cited
US5055506A
Cited
EP0390370B1
Cited
US5017676A
Cited
EP0442653A2
Cited
EP0483583A2
Cited
EP0483915A1
Cited
US5124384A
Cited
JPH04189874A
Cited
WO1993016133A2
Cited
EP0555774A1
Cited
EP0573142A1
Cited
US5362816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-11 | 1999-12-11 | 2000-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-11 | 2003-12-11 | 2004-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-11 | 2007-12-11 | 2008-06-11 | $7700.00 | Window Closed / Lapsed |