US4423166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ungelled polyepoxide-polyoxyalkylenepolyamine resins, aqueous dispersions thereof, and their use in cationic electrodeposition
Assignee: PPG Industries Ohio Inc
•
Filing: 1982-09-20
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Granted: 1983-12-27
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Expires: 2002-09-20
Abstract
Abstract Ungelled resins, aqueous dispersions of cationic resins, coating compositions, and electrodeposition using the resinous coating compositions are disclosed. The resins are formed from reacting polyepoxides with polyoxyalkylenepolyamines. The aqueous dispersions are prepared by at least partially neutralizing the resins to provide cationic groups and dispersing the cationic resins in aqueous medium. When added to cationic electrodepositable coating compositions, such as high throwpower compositions, the ungelled cationic resins provide better appearing, more flexible and water-resistant electrodeposited coatings.
Inventors
- 👤 Thomas C. Moriarity
- 👤 William J. Geiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:07
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C08; C08L; C08L63/00; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
43 words
An ungelled resin formed from reacting: (A) a polyepoxide and (B) a polyoxyalkylenepolyamine; the ratio of equivalents of active hydrogens in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.20 to 1.70:1.
Claim 2
Dependent Claim
43 words
An ungelled resin formed from reacting: (A) a polyepoxide and (B) a polyoxyalkylenepolyamine; the ratio of equivalents of active hydrogens in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.20 to 1.70:1.
Claim 3
Dependent Claim
16 words
The resin of claim 1 wherein the polyepoxide is a polyglycidyl ether of a cyclic polyol.
Claim 4
Dependent Claim
12 words
The resin of claim 2 wherein the cyclic polyol is a diol.
Claim 5
Dependent Claim
35 words
The resin of claim 3 wherein the polyglycidyl ether of the cyclic diol is a polyglycidyl ether of bisphenol A or hydrogenated bisphenol A having a molecular weight within the range of 340 to 2000.
Claim 6
Dependent Claim
12 words
The resin of claim 1 in which the polyoxyalkylenepolyamine is a polyoxypropylenepolyamine.
Claim 7
Dependent Claim
12 words
The resin of claim 5 in which the polyoxypropylenepolyamine is a diamine.
Claim 8
Dependent Claim
20 words
The resin of claim 1 in which the polyoxyalkylenepolyamine has a molecular weight within the range of 137 to 3600.
Claim 9
Dependent Claim
19 words
The resin of claim 7 in which the polyoxyalkylenepolyamine has an amine equivalent weight of about 69 to 1800.
Claim 10
Dependent Claim
21 words
The resin of claim 1 being at least partially neutralized with acid to provide cationic groups and dispersed in aqueous medium.
Claim 11
Dependent Claim
71 words
An ungelled resin formed from reacting: (A) a polyglycidyl ether of a cyclic polyol having a molecular weight of 340 to 5000 and an epoxy equivalent of 170 to 2500, (B) a polyoxyalkylenediamine having a molecular weight of 400 to 3000; the ratio of equivalents of active hydrogen in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.20 to 1.70:1.
Claim 12
Dependent Claim
71 words
An ungelled resin formed from reacting: (A) a polyglycidyl ether of a cyclic polyol having a molecular weight of 340 to 5000 and an epoxy equivalent of 170 to 2500, (B) a polyoxyalkylenediamine having a molecular weight of 400 to 3000; the ratio of equivalents of active hydrogen in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.20 to 1.70:1.
Claim 13
Dependent Claim
31 words
The ungelled resin of claim 10 in which the polyglycidyl ether of a cyclic polyol has a molecular weight of 340 to 2000 and an epoxy equivalent of 170 to 1000.
Claim 14
Dependent Claim
18 words
The ungelled resin of claim 10 in which the polyoxyalkylenediamine has a molecular weight of 800 to 2500.
Claim 15
Dependent Claim
15 words
The ungelled resin of claim 10 or 12 in which the polyoxyalkylenediamine is a polyoxypropylenediamine.
Claim 16
Dependent Claim
31 words
The ungelled resin of claim 12 in which the ratio of equivalents of active hydrogen in (B) to equivalents of epoxy in (A) is within the range of 1.25 to 1.50:1.
Claim 17
Dependent Claim
71 words
An ungelled resin formed from reacting: (A) a polyglycidyl ether of a cyclic polyol having a molecular weight of 340 to 2000 and an epoxy equivalent of 170 to 1000, (B) a polyoxyalkylenediamine having a molecular weight of 800 to 2500; the ratio of equivalents of active hydrogen in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.25 to 1.50:1.
Claim 18
Dependent Claim
71 words
An ungelled resin formed from reacting: (A) a polyglycidyl ether of a cyclic polyol having a molecular weight of 340 to 2000 and an epoxy equivalent of 170 to 1000, (B) a polyoxyalkylenediamine having a molecular weight of 800 to 2500; the ratio of equivalents of active hydrogen in (B), with primary amine groups being considered monofunctional, to equivalents of epoxy in (A) being within the range of 1.25 to 1.50:1.
Claim 19
Dependent Claim
12 words
The ungelled resin of claim 15 in which the polyoxyalkylenediamine is polyoxypropylenediamine.
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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) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |