Patent US3609111A successfully refreshed from Google Patents.
US3609111A
Expired / Lapsed
US
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Composition for electrophoretic deposition
Assignee: Kansai Paint Co Ltd
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Filing: 1967-11-06
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Granted: 1971-09-28
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Expires: 1987-11-06
Abstract
Abstract In a coating composition adapted for electrophoretic deposition containing an aqueous medium and a resinous binder dispersed therein, improvement comprising the resinous binder being a modified butadiene polymer prepared by reacting a butadiene polymer of a number average molecular weight of 200 to 5,000 with an Alpha , Beta -ethylenically unsaturated monocarboxylic acid and neutralizing the resultant adduct with a base to turn it water-dispersible.
Inventors
- 👤 Ju Kumanotani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:02
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/28; C09; C09D; C09D5/00; C09D5/44; C09D5/4403; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
48 words
The coating composition of claim 1 wherein said homopolymers are selected from the group consisting of 1,2-addition butadiene homopolymer, 1,4-addition butadiene homopolymer, and 1,2- and 1, 4-random addition butadiene homopolymer, and said copolymerizable monomer is selected from the group consisting of isoprene, chloroprene, styrene, methyl methacrylate, and acrylonitrile.
Claim 2
Dependent Claim
24 words
The coating composition of claim 2, in which said composition contains the modified butadiene polymer in a concentration of 30 to 60 weight percent.
Claim 3
Dependent Claim
18 words
The coating composition of claim 2, in which said composition has a pH value of 7.0 to 8.5.
Claim 4
Dependent Claim
19 words
The coating composition of claim 2, in which said butadiene polymer has a molecular weight of 800 to 4,000.
Claim 5
Dependent Claim
14 words
The coating composition of claim 5, in which said butadiene polymer is butadiene homopolymer.
Claim 6
Dependent Claim
133 words
In a bath composition adapted for electrophoretic deposition containing aqueous medium and a resinous binder and a pigment dispersed in the aqueous medium, the improvement wherein the resinous binder is a modified butadiene polymer prepared by reacting a butadiene polymer of a number average molecular weight of 200 to 5,000 with an Alpha , Beta -ethylenically unsaturated monocarboxylic acid and neutralizing the resultant adduct with a base to turn it water dispersible, said butadiene polymer being selected from the group consisting of homopolymers of butadiene, copolymers of at least 70 weight percent butadiene with at most 30 percent of an ethylenically unsaturated copolymErizable monomer, and derivatives of said homopolymers and said copolymers selected from the group consisting of polybutadiene dicarboxylic acid, polybutadiene glycol, partially oxidized polybutadiene, partially hydrogenated polybutadiene, and partially halogenated polybutadiene.
Claim 7
Dependent Claim
48 words
The bath composition of claim 6 wherein said homopolymers are selected from the group consisting of 1,2-addition butadiene homopolymer, 1,4-addition butadiene homopolymer, and 1,2- and 1, 4-random addition butadiene homopolymer, and said copolymerizable monomer is selected from the group consisting of isoprene, chloroprene, styrene, methyl methacrylate, and acrylonitrile.
Claim 8
Dependent Claim
24 words
The bath composition of claim 10, in which the solid content of the composition is in the range of 5 to 30 weight percent.
Claim 9
Dependent Claim
23 words
The bath composition of claim 8, in which the pigment to binder ratio by weight is in the range of 1:1 to 1:5.
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |