GB1115130A - Improvements in and relating to electrophoresis - Google Patents
Improvements in and relating to electrophoresisInfo
- Publication number
- GB1115130A GB1115130A GB51339/66A GB5133966A GB1115130A GB 1115130 A GB1115130 A GB 1115130A GB 51339/66 A GB51339/66 A GB 51339/66A GB 5133966 A GB5133966 A GB 5133966A GB 1115130 A GB1115130 A GB 1115130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- copolymer
- parts
- styrene
- maleic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4407—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained by polymerisation reactions involving only carbon-to-carbon unsaturated bonds
- C09D5/4411—Homopolymers or copolymers of acrylates or methacrylates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Molecular Biology (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
An electrolyte for electrodeposition of stovable coatings consists of a water-diluted ammonium or amine salt of a formaldehyde reaction product of a copolymer obtained from acrylamide and/or methacrylamide and at least two other ethylenically-unsaturated monomers, one of which is a carboxylic acid, the copolymer having a molecular weight of from 5000 to 15,000. The copolymer may be obtained by polymerization in a solvent, which is preferably water-miscible, using a mercaptan regulator, e.g. tert.-dodecylmercaptan, and a peroxide or azo-compound as accelerator. Suitable comonomers include acrylic and methacrylic acids and their esters; maleic and fumaric acids and their half-esters and diesters; and styrene and its derivatives, e.g. methyl-styrene and vinyl toluene. The copolymer is then reacted with formaldehyde, which may be used in alcoholic or aqueous solution, and neutralized with ammonia or an amine, e.g. triethylamine or dimethylethanol-amine. In the example given the copolymer is produced using by weight: 70 parts butanol, 8 parts acrylic acid, 15 parts acrylamide, 25 parts styrene, 25 parts acrylic acid butyl ester, 27 parts acrylic acid ethyl ester, 1 part di-tert. butyl peroxide, 5 parts tert. dodecylmercaptan. After methylolation and neutralization, the product is diluted with water and pigmented with TiO2.ALSO:Electro-phororetically produced coatings are produced using as electrolyte a water-diluted ammonium or amine salt of a formaldehyde reaction product of a copolymer obtained from acrylamide and/or methacrylamide and at least two other ethylenically - unsaturated monomers one of which is a carboxylic acid, in which the polymer used has molecular weight of from 5,000 to 15,000. The copolymer may be formed using as the carboxylic acid, acrylic acid, methacrylic acid, maleic acid, fumaric acid or the half-ester of maleic or fumaric acid; and as the other comonomer acrylic and/or methacrylic acid esters, maleic or fumaric acid di-esters or styrene may be used. The resulting polymer may be reacted with formaldehyde prior to or after neutralization thereof using ammonia; primary, secondary or testiary amines, or alkano-amines, e.g. triethyamine or demethyethanolamine. After deposition the deposited film is preferably stoved at 120-200 DEG C. The electrolyte may be pigmented with Ti O2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1051165A AT278998B (en) | 1965-11-23 | 1965-11-23 | Water-thinnable copolymers as electrophoretically depositable coating media |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1115130A true GB1115130A (en) | 1968-05-29 |
Family
ID=3622852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB51339/66A Expired GB1115130A (en) | 1965-11-23 | 1966-11-16 | Improvements in and relating to electrophoresis |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT278998B (en) |
ES (1) | ES333631A1 (en) |
FR (1) | FR1499083A (en) |
GB (1) | GB1115130A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158831A (en) * | 1984-05-16 | 1985-11-20 | Ici Plc | Temporary coating compositions |
-
1965
- 1965-11-23 AT AT1051165A patent/AT278998B/en not_active IP Right Cessation
-
1966
- 1966-11-16 FR FR83841A patent/FR1499083A/en not_active Expired
- 1966-11-16 GB GB51339/66A patent/GB1115130A/en not_active Expired
- 1966-11-22 ES ES0333631A patent/ES333631A1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158831A (en) * | 1984-05-16 | 1985-11-20 | Ici Plc | Temporary coating compositions |
Also Published As
Publication number | Publication date |
---|---|
ES333631A1 (en) | 1967-10-16 |
FR1499083A (en) | 1967-10-20 |
DE1646174A1 (en) | 1971-09-23 |
DE1646174B2 (en) | 1972-11-09 |
AT278998B (en) | 1970-02-25 |
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