US4260720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel mercapto chain extended products and their use in cationic electrodeposition
Assignee: PPG Industries Inc
•
Filing: 1979-10-31
•
Granted: 1981-04-07
•
Expires: 1999-10-31
Abstract
Abstract Novel chain-extended cationic resinous products suitable for use in cationic electrodeposition are disclosed. The products are formed by chain extending polyepoxides with polymercapto compounds and reacting with amines to provide cationic groups.
Inventors
- 👤 Joseph F. Bosso
- 👤 Richard M. Nugent
- 👤 Joseph E. Plasynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:07
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/64; C08G59/182; C08G59/50; C08G59/56; C08G59/66; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4434; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
62 words
A resinous binder suitable for use in cationic electrodeposition comprising the reaction product of: (A) a polyepoxide having a 1,2-epoxy equivalency greater than one, (B) a polymercapto compound, and (C) an amine; the equivalent ratio of mercapto groups in (B) to epoxide groups in (A) being less than one; said reaction product containing cationic groups which are derived from the organic amine.
Claim 2
Dependent Claim
62 words
A resinous binder suitable for use in cationic electrodeposition comprising the reaction product of: (A) a polyepoxide having a 1,2-epoxy equivalency greater than one, (B) a polymercapto compound, and (C) an amine; the equivalent ratio of mercapto groups in (B) to epoxide groups in (A) being less than one; said reaction product containing cationic groups which are derived from the organic amine.
Claim 3
Dependent Claim
18 words
The resinous product of claim 1 in which the polyepoxide is a polyglycidyl ether of a cyclic polyol.
Claim 4
Dependent Claim
14 words
The resinous product of claim 2 in which the cyclic polyol is a polyphenol.
Claim 5
Dependent Claim
17 words
The resinous product of claim 1 in which the polyepoxide has a molecular weight greater than 350.
Claim 6
Dependent Claim
16 words
The resinous product of claim 1 in which the polymercapto compound is a polymeric polymercapto compound.
Claim 7
Dependent Claim
17 words
The resinous product of claim 1 or 5 in which the polymercapto compound is a dimercapto compound.
Claim 8
Dependent Claim
24 words
The resinous product of claim 5 in which the polymeric polymercapto compound is the reaction product of a polymeric polyol with a mercaptocarboxylic acid.
Claim 9
Dependent Claim
23 words
The resinous product of claim 7 in which the polymeric polyol is selected from the class consisting of polyester diols and polyether diols.
Claim 10
Dependent Claim
21 words
The resinous product of claim 1 in which the polymeric polymercapto compound has a molecular weight of from 200 to 3000.
Claim 11
Dependent Claim
17 words
The resinous product of claim 1 in which the organic amine is a primary and/or secondary amine.
Claim 12
Dependent Claim
20 words
The resinous product of claim 1 in which a portion of the organic amine is a ketimine of a polyamine.
Claim 13
Dependent Claim
14 words
The resinous product of claim 1 in which the amine is a tertiary amine.
Claim 14
Dependent Claim
27 words
The resinous product of claim 1 in which the equivalent ratio of mercapto groups in (B) to polyepoxide groups in (A) is about 0.1 to about 0.8:1.
Claim 15
Dependent Claim
12 words
The resinous product of claim 1 in combination with a curing agent.
Claim 16
Dependent Claim
15 words
The resinous product of claim 14 in which the curing agent is a capped polyisocyanate.
References Cited (Backward Citations)
US3732309A
Cited
US3803089A
Cited
US4035272A
Cited
US4029621A
Cited
US4104147A
Cited
US4035274A
Cited
US4092293A
Cited
US4136086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-06 | 1984-10-06 | 1985-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-06 | 1988-10-06 | 1989-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-06 | 1992-10-06 | 1993-04-07 | $7700.00 | Window Closed / Lapsed |