US4031050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic electrodepositable compositions of blocked NCO and acid salt of adduct of amine and polyepoxide
Assignee: PPG Industries Inc
•
Filing: 1975-02-05
•
Granted: 1977-06-21
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Expires: 1995-02-05
Abstract
Abstract It has been found that aqueous coating compositions comprising a blocked organic polyisocyanate, an amine adduct of an epoxy group-containing resin, and optionally a catalyst for urethane formation can be electrodeposited. These compositions deposit on the cathode to provide coatings having excellent properties.
Inventors
- 👤 Robert D. Jerabek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:54
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/60; C08G18/603; C08G18/08; C08G18/0804; C08G18/0809; C08G18/0814; C08G18/64; C08G18/6415; C08G18/643; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/56; C09; C09D; C09D5/00; C09D5/44; C09D5/4407; C09D5/4419; C09D5/443; C09D5/4434; C09D5/4438; C09D5/4453; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31605
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A composition comprising: A. a synthetic hydroxyl-containing adduct which is the reaction product of a primary or secondary amine and a polyepoxide, said adduct being solubilized with acid to provide cationic groups in said adduct, B. a blocked polyisocyanate stable at ordinary room temperature in the presence of said adduct and reactive with said adduct at elevated temperatures.
Claim 2
Dependent Claim
58 words
A composition comprising: A. a synthetic hydroxyl-containing adduct which is the reaction product of a primary or secondary amine and a polyepoxide, said adduct being solubilized with acid to provide cationic groups in said adduct, B. a blocked polyisocyanate stable at ordinary room temperature in the presence of said adduct and reactive with said adduct at elevated temperatures.
Claim 3
Dependent Claim
66 words
An aqueous electrodeposition bath which is an aqueous dispersion comprising: A. a solubilized hydroxyl-containing synthetic adduct which is the reaction product of a primary or secondary amine and a polyepoxide, said adduct being solubilized with acid to provide cationic groups in said adduct, B. a blocked polyisocyanate stable at ordinary room temperature in the presence of said adduct and reactive with said adduct at elevated temperatures.
Claim 4
Dependent Claim
66 words
An aqueous electrodeposition bath which is an aqueous dispersion comprising: A. a solubilized hydroxyl-containing synthetic adduct which is the reaction product of a primary or secondary amine and a polyepoxide, said adduct being solubilized with acid to provide cationic groups in said adduct, B. a blocked polyisocyanate stable at ordinary room temperature in the presence of said adduct and reactive with said adduct at elevated temperatures.
Claim 5
Dependent Claim
13 words
The composition of claim 1 which additionally contains a catalyst for urethane formation.
Claim 6
Dependent Claim
34 words
The composition as in claim 1, wherein (B) is the reaction product of an organic polyisocyanate and an aliphatic alkyl, cycloaliphatic alkyl, an aromatic alkyl monoalcohol, a phenol, an oxime or a tertiary hydroxylamine.
Claim 7
Dependent Claim
27 words
A composition as in claim 1 wherein (A) and (B) are present in a ratio of about 0.5 to about 2.0 latent urethane groups per hydroxyl group.
Claim 8
Dependent Claim
24 words
The composition as in claim 1 wherein (A) is an acid, solubilized adduct of a secondary amine of a polygycidyl ether of Bisphenol A.
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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) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |