US3853801A
Expired / Lapsed
US
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Electrophoretic coating compositions
Assignee: Kansai Paint Co Ltd
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Filing: 1972-07-31
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Granted: 1974-12-10
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Expires: 1992-07-31
Abstract
Abstract An electrophoretic coating composition comprises an aqueous medium and a resinous binder dispersed therein, said resinous binder being a mixture of a modified butadiene polymer neutralized with a base and a water-dispersible methylolated phenol resin, said modified butadiene polymer being prepared by reacting a mixture of 1,2-polybutadiene, 1,4-polybutadiene and unsaturated oil compound having an iodine value of at least 100 with at least one of a Alpha , Beta -unsaturated dibasic acids and anhydrides thereof.
Inventors
- 👤 A Tominaga
- 👤 N Nikaido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:49
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4403; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10S525/00; Y10S525/914
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
350 words
AN ELECTROPHORETIC COATING COMPOSITION WHICH COMPRISES A RESINOUS BINDER DISPERSED IN AN AQUEOUS MEDIUM; SAID RESINOUS BINDER BEING A MIXTURE OF A MODIFIED BUTADIENE POLYMER NEUTRALIZED WITH A BASE AND A METHYLOLATED PHENOL RESIN WHICH IS WATER-DISPERSIBLE RESOLE TYPE PHENOL RESIN CONTAINING 1 TO 3 PHENOL NUCLEI AND AT LEAST ONE METHYOL GROUP IN AN AMOUNT OF 3 TO 50 WEIGHT PARTS BASED ON 100 WEIGHT PARTS OF MODIFIED BUTADIENE POLYMER; SAID MODIFIED BUTADIENE POLYMER BEING THE REACTION PRODUCT OF A STARTING MIXTURE OF 1,2POLYBUTADIENE, 1,4-POLYBUTADIENE IN A WEIGHT RATIO OF 3 TO 9 : 7 TO 1 AND UNSATURATED OIL COMPOUND HAVING AN IODINE VALUE OF AT LEAST 100 IN AN AMOUNT OF 10 TO 60 WEIGHT PERCENT BASED ON THE TOTAL WEIGHT OF THE POLUBUTADIENE MIXTURE AND THE UNSATURATED OIL COMPOUND WITH AT LEAST ONE A,B-UNSATURATED DICARBOXYLIC ACID AND ANHYDRIDES THEREOF SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, MALEIC ANHYDRIDE, FUMARIC ACID, ITACONIC ACID AND ITACONIC ANHYDRIDE, IN AN AMOUNT OF 7 TO 40 WEIGHT PARTS BASED ON 100 PARTS OF THE STARTING MIXTURE; SAID 1,2-POLYBUTADIENE CONTAINING AT LEAST 70 PERCENT OF VINYL BOND AND HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 500 TO 5,000 AND AN IODINE VALUE OF AT LEAST 350; SAID 1,4POLYBUTADIENE CONTAINING AT LEAST 90 PERCENT OF 1,4-BOND AND HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 500 TO 10,000 AND AN IODINE VALUE OF AT LEAST 40; SAID UNSATURATED OIL COMPPOUND BEING AT LEAST ONE SPECIES SELECTED FROM THE GROUP CONSISTING OF (1) A NATURAL OIL, (2) A NATURAL OIL FATTY ACID, (3) AN ESTER OF A NATURAL OIL FATTY ACID WITH A POLYHYDRIC ALCOHOL HAVING 2 TO 6 HYDROXYL GROUPS IN THE MOLECULE, (4) AN ESTER OF A NATURAL OIL FATTY ACID WITH AN EPOXY RESIN HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 200 TO 2,000, (5) AN ESTER OF A NATURAL OIL FATTY ACID WITH A POLYOL RESIN HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 200 TO 2,000, (6) A MODIFIED OIL PREPARED BY TREATING THE ABOVE OIL (1) THERMALLY OR CHEMICALLY AND (7) A DIMER OF NATURAL OIL FATTY ACID.
Claim 2
Dependent Claim
350 words
AN ELECTROPHORETIC COATING COMPOSITION WHICH COMPRISES A RESINOUS BINDER DISPERSED IN AN AQUEOUS MEDIUM; SAID RESINOUS BINDER BEING A MIXTURE OF A MODIFIED BUTADIENE POLYMER NEUTRALIZED WITH A BASE AND A METHYLOLATED PHENOL RESIN WHICH IS WATER-DISPERSIBLE RESOLE TYPE PHENOL RESIN CONTAINING 1 TO 3 PHENOL NUCLEI AND AT LEAST ONE METHYOL GROUP IN AN AMOUNT OF 3 TO 50 WEIGHT PARTS BASED ON 100 WEIGHT PARTS OF MODIFIED BUTADIENE POLYMER; SAID MODIFIED BUTADIENE POLYMER BEING THE REACTION PRODUCT OF A STARTING MIXTURE OF 1,2POLYBUTADIENE, 1,4-POLYBUTADIENE IN A WEIGHT RATIO OF 3 TO 9 : 7 TO 1 AND UNSATURATED OIL COMPOUND HAVING AN IODINE VALUE OF AT LEAST 100 IN AN AMOUNT OF 10 TO 60 WEIGHT PERCENT BASED ON THE TOTAL WEIGHT OF THE POLUBUTADIENE MIXTURE AND THE UNSATURATED OIL COMPOUND WITH AT LEAST ONE A,B-UNSATURATED DICARBOXYLIC ACID AND ANHYDRIDES THEREOF SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, MALEIC ANHYDRIDE, FUMARIC ACID, ITACONIC ACID AND ITACONIC ANHYDRIDE, IN AN AMOUNT OF 7 TO 40 WEIGHT PARTS BASED ON 100 PARTS OF THE STARTING MIXTURE; SAID 1,2-POLYBUTADIENE CONTAINING AT LEAST 70 PERCENT OF VINYL BOND AND HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 500 TO 5,000 AND AN IODINE VALUE OF AT LEAST 350; SAID 1,4POLYBUTADIENE CONTAINING AT LEAST 90 PERCENT OF 1,4-BOND AND HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 500 TO 10,000 AND AN IODINE VALUE OF AT LEAST 40; SAID UNSATURATED OIL COMPPOUND BEING AT LEAST ONE SPECIES SELECTED FROM THE GROUP CONSISTING OF (1) A NATURAL OIL, (2) A NATURAL OIL FATTY ACID, (3) AN ESTER OF A NATURAL OIL FATTY ACID WITH A POLYHYDRIC ALCOHOL HAVING 2 TO 6 HYDROXYL GROUPS IN THE MOLECULE, (4) AN ESTER OF A NATURAL OIL FATTY ACID WITH AN EPOXY RESIN HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 200 TO 2,000, (5) AN ESTER OF A NATURAL OIL FATTY ACID WITH A POLYOL RESIN HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 200 TO 2,000, (6) A MODIFIED OIL PREPARED BY TREATING THE ABOVE OIL (1) THERMALLY OR CHEMICALLY AND (7) A DIMER OF NATURAL OIL FATTY ACID.
Claim 3
Dependent Claim
39 words
The electrophoretic coating composition according to claim 1, in which said 1,2-polybutadiene contains at least 80 percent of vinyl bond and has a number average molecular weight of 1,000 to 3,000 and an iodine value of at least 400.
Claim 4
Dependent Claim
39 words
The electrophoretic coating composition according to claim 1, in which said 1,4-polybutadiene contains at least 90 percent of 1,4-bond and has a number average molecular weight of 1,000 to 5, 000 and an iodine value of at least 450.
Claim 5
Dependent Claim
22 words
The electrophoretic coating composition according to claim 1, in which said unsaturated oil compound has an iodine value of 120 to 200.
Claim 6
Dependent Claim
45 words
The electrophoretic coating composition according to claim 1, in which said natural oil is at least one species selected from the group consisting of linseed oil, soybean oil, dehydrated castor oil, tung oil, safflower oil, cotton seed oil, tall oil, fish oil and whale oil.
Claim 7
Dependent Claim
32 words
The electrOphoretic coating composition according to claim 5, in which said natural oil is at least one species selected from the group consisting of linseed oil, dehydrated castor oil and soybean oil.
Claim 8
Dependent Claim
46 words
The electrophoretic coating composition according to claim 1, in which said fatty acid of the natural oil is at least one species selected from the group consisting of linseed oil fatty acid, soybean oil fatty acid, dehydrated castor oil fatty acid and tung oil fatty acid.
Claim 9
Dependent Claim
55 words
The electrophoretic coating composition according to claim 1, in which said ester of a natural oil fatty acid with an epoxy resin is an ester of a natural oil fatty acid with an epoxy resin having a number average molecular weight of 200 to 2,000 and produced by the reaction of bisphenol A with epichlorohydrine.
Claim 10
Dependent Claim
27 words
The electrophoretic coating composition according to claim 1, in which said amount of the unsaturated oil compound is in the range of 30 to 50 weight percent.
Claim 11
Dependent Claim
50 words
The electrophoretic coating composition according to claim 1, in which said unsaturated oil compound is used in a mixture with at least one of a petroleum resin having an iodine value of less than 300 and a number average molecular weight of 200 to 2, 000, rosin and cumarone resin.
Claim 12
Dependent Claim
44 words
The electrophoretic coating composition according to claim 1, in which at least one of said Alpha , Beta -unsaturated dibasic acid and anhydride thereof is used in an amount of 10 to 25 weight parts based on 100 weight parts of the starting mixture.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |