US4075135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and resinous vehicles for electrodeposition
Assignee: PPG Industries Inc
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Filing: 1975-07-28
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Granted: 1978-02-21
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Expires: 1995-07-28
Abstract
Abstract A method of preparing resinous vehicles in aqueous medium by addition polymerizing a material having CH 2 ═C< moieties with a partially neutralized reaction product of an unsaturated carboxylic acid or anhydride and polybutadiene is disclosed. The resinous vehicles are prepared in a manner such that they are useful for electrodeposition.
Inventors
- 👤 Edward L. Jozwiak, Jr.
- 👤 Suryya K. Das
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:47
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4403; C08; C08C; C08C19/00; C08C19/28; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
A process for preparing a resinous vehicle suitable for electrodeposition which comprises: A. addition polymerizing a material having CH 2 ═C< moieties, in the presence of an oil-soluble free radical polymerization catalyst and a chain transfer agent, in aqueous medium with B. an at least 30 percent neutralized reaction product of: 1. an alpha, beta-ethylenically unsaturated dicarboxylic acid or its anhydride containing from 4 to 12 carbon atoms, and 2. polybutadiene which is a liquid at room temperature and which has a molecular weight of 700-5000.
Claim 2
Dependent Claim
86 words
A process for preparing a resinous vehicle suitable for electrodeposition which comprises: A. addition polymerizing a material having CH 2 ═C< moieties, in the presence of an oil-soluble free radical polymerization catalyst and a chain transfer agent, in aqueous medium with B. an at least 30 percent neutralized reaction product of: 1. an alpha, beta-ethylenically unsaturated dicarboxylic acid or its anhydride containing from 4 to 12 carbon atoms, and 2. polybutadiene which is a liquid at room temperature and which has a molecular weight of 700-5000.
Claim 3
Dependent Claim
29 words
The process of claim 1 in which the material having CH 2 ═C< moieties is selected from the class consisting of vinyl monomers and diene monomers and mixtures thereof.
Claim 4
Dependent Claim
11 words
The process of claim 2 in which the diene is 1,3-butadiene.
Claim 5
Dependent Claim
23 words
The process of claim 1 in which the free radical polymerization catalyst is selected from the class consisting of azobisisobutyronitrile and cumene hydroperoxide.
Claim 6
Dependent Claim
14 words
The process of claim 1 in which the chain transfer agent is tertiary-dodecyl mercaptan.
Claim 7
Dependent Claim
19 words
The process of claim 1 in which the unsaturated dicarboxylic acid or its anhydride is maleic acid or anhydride.
Claim 8
Dependent Claim
20 words
An aqueous electrodeposition bath containing 1 to 30 percent by weight resin solids of the resinous vehicle of claim 1.
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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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |