GB860299A - Improvements in or relating to coating and coating compositions comprising polytetraf - Google Patents
Improvements in or relating to coating and coating compositions comprising polytetrafInfo
- Publication number
- GB860299A GB860299A GB513658A GB513658A GB860299A GB 860299 A GB860299 A GB 860299A GB 513658 A GB513658 A GB 513658A GB 513658 A GB513658 A GB 513658A GB 860299 A GB860299 A GB 860299A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resins
- cellulose
- thermosettable
- polyvinyl
- silicones
- 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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Coating compositions comprise dispersions of a finely-divided polytetrafluoroethylene of particle size 0.1 to 3 microns, with the predominant proportion having a particle size of about one micron, and at least one thermosettable resin in a dispersing medium, in which the combined weight of polytetrafluoroethylene and the thermosettable resin is less than 25% of the weight of the dispersion, the said composition including a stabilizing agent of such nature and amount that when the dispersion is allowed to stand the polytetrafluoroethylene particles agglomerate to an extent such that they settle in 2 to 5 hours so as to leave a proportion of 1/5 to 9/10 of the depth of the dispersion as clear supernatant liquid. The thermosettable resins may be phenolic resins, e.g. condensates of cresol, resorcinol or butyl phenol with formaldehyde or furfural, optionally modified with rosin, rosin esters or alkyds; urea-formaldehyde resins; melamine-formaldehyde resins; alkyd resins, e.g. derived from maleic, fumaric, phthalic or adipic acids and a glycol, glycerol or sorbitol, optionally modified with phenolic resins, drying or semi-drying oils; epoxy resins, e.g. condensates of epichlorhydrin with bisphenols or other bifunctional hydroxyl - containing compounds, optionally modified with polyester resins, phenolic resins or fatty acids; polyurethanes, e.g. reaction products of polyesters and isocyanates such as 2,4-tolylene diisocyanate; thermosettable alkyl and alkyl-aryl silicones, e.g. methyl silicones, ethyl silicones and methylphenyl silicones; and petroleum or hydrocarbon resins. The thermosettable resins may contain fillers, colouring agents and driers. The stabilizers may be vinyl or cellulosic resins, e.g. polyvinyl acetate, polyvinyl chloride, polyvinyl alcohol, polyvinyl acetal, polyvinyl butyral, polyvinyl formal, vinyl chloride-vinyl acetate copolymers, cellulose acetate, cellulose nitrate, cellulose propionate, cellulose acetate butyrate, ethyl cellulose, methyl cellulose and carboxymethyl cellulose. The dispersing medium may comprise hydrocarbons, e.g. toluene and xylene; alcohols, e.g. n-butyl alcohol and ethanol; esters, e.g. ethylene glycol monoethyl ether acetate; and ketones, e.g. methyl isobutyl ketone. The dispersions may also contain surface active agents, e.g. stearyl dimethyl benzyl ammonium chloride, sodium dioctyl sulphosuccinate and polyoxyethylene lauryl ether. The compositions may be applied to metals, e.g. steel, brass and aluminium, wood, glass, plastics, rubber and leather, and the thermosetting resin thereafter cured at a temperature below that required to fuse thepolytetrafluoroethylene. U.S.A. Specifications 2,681,324 and 2,777,733 are referred to.ALSO:Substrates may be coated, e.g. by brushing, dipping or spraying, with compositions comprising dispersions of finely divided polytetrafluoroethylene of particle size 0.1 to 3 microns, with the predominant proportion having a particle size of about one micron, and at least one thermosettable resin in a dispersing medium, in which the combined weight of polytetrafluoroethylene and thermosettable resin is less than 25% of the weight of the dispersion, said composition including a stabilizing agent of such nature and amount that when the dispersion is allowed to stand the polytetrafluoroethylene particles agglomerate to an extent such that they settle in 2 to 5 hours so as to leave a proportion of one-fifth to nine-tenths of the depth of the dispersion as clear supernatant liquid, and the coatings thereafter cured at temperatures above that needed to cure the thermosettable resins but below that needed to fuse the polytetrafluoroethylene. The substrate may be metal, e.g. steel, brass or aluminium, wood, glass, plastics, rubber or leather. The thermosettable resins may be phenolic resins, e.g. condensates of cresol, resorcinol or butyl phenol with formaldehyde or furfural, optionally modified with rosin, rosin esters or alkyds; urea-formaldehyde resins; melamineformaldehyde resins; alkyd resins, e.g. derived from maleic, fumaric, phthalic or adipic acids and a glycol, glycerol or sorbitol, optionally modified with phenolic resins, drying or semidrying oils; epoxy resins, e.g. condensates of epichlorhydrin with bisphenols or other bifunctional hydroxyl-containing compounds, optionally modified with polyester resins, phenolic resins or fatty acids; polyurethanes, e.g. reaction products of polyesters and isocyanates such as 2,4-tolylene diisocyanate; thermosettable alkyl and alkyl-aryl silicones, e.g. methyl silicones, ethyl silicones and methyl phenyl silicones; and petroleum or hydrocarbon resins. The stabilizers may be vinyl or cellulosic resins, e.g. polyvinyl acetate, polyvinyl chloride, polyvinyl alcohol, polyvinyl acetal, polyvinyl butyral, polyvinyl formal, vinyl chloride-vinyl acetate copolymers, cellulose acetate, cellulose nitrate, cellulose propionate, cellulose acetate butyrate, ethyl cellulose, methyl cellulose and carboxy methyl cellulose. The dispersing medium may comprise hydrocarbons, e.g. toluene and xylene; alcohols, e.g. n-butyl alcohol and ethanol; esters, e.g. ethylene glycol monoethyl ethers acetate; and ketones, e.g. methyl isobutyl ketone. The dispersions may also contain surface-active agents, e.g. stearyl dimethyl benzyl ammonium chloride, sodium dioctyl sulphosuccinate and polyoxyethylene lauryl ether. The coatings have a low coefficient of friction, have electrical-insulating, abrasion- and corrosion-resistant properties, and will readily accept printing inks. U.S.A. Specifications 2,681,324 and 2,777,733 are referred to.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64059757A | 1957-02-18 | 1957-02-18 | |
US71084858A | 1958-01-24 | 1958-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB860299A true GB860299A (en) | 1961-02-01 |
Family
ID=27093584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB513658A Expired GB860299A (en) | 1957-02-18 | 1958-02-17 | Improvements in or relating to coating and coating compositions comprising polytetraf |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE564931A (en) |
CH (1) | CH380272A (en) |
DE (1) | DE1250035B (en) |
FR (1) | FR1202186A (en) |
GB (1) | GB860299A (en) |
NL (2) | NL107096C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242309B (en) * | 1961-08-25 | 1967-06-15 | Du Pont | Process for the production of coatings from coating agents based on polymers of tetrafluoroethylene and organopolysiloxane resins |
US4605695A (en) * | 1983-02-24 | 1986-08-12 | Nippon Piston Ring Co., Ltd. | Heat- and abrasion-resistant coating material |
US5008135A (en) * | 1985-09-19 | 1991-04-16 | The Standard Oil Company | Epoxy fluorocarbon coating compositions and the process to make the same |
CN106661359A (en) * | 2014-08-04 | 2017-05-10 | 索尔维特殊聚合物意大利有限公司 | Powder composition |
CN112143301A (en) * | 2020-03-31 | 2020-12-29 | 北京博研中能科技有限公司 | Thermosetting corrosion-resistant wear-resistant coating material and preparation and use methods thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055852A (en) * | 1958-09-08 | 1962-09-25 | Acheson Ind Inc | Polytetrafluoroethylene-cellulosic ether dispersion, method of forming coatings therewith, and article coated therewith |
DE4010694A1 (en) * | 1990-04-03 | 1991-10-10 | Hoechst Ag | FIBER REINFORCED MATERIAL, METHOD FOR THE PRODUCTION THEREOF AND ITS USE |
-
0
- NL NL225042D patent/NL225042A/xx unknown
- NL NL107096D patent/NL107096C/xx active
- DE DENDAT1250035D patent/DE1250035B/en active Pending
- BE BE564931D patent/BE564931A/xx unknown
-
1958
- 1958-02-17 GB GB513658A patent/GB860299A/en not_active Expired
- 1958-02-18 CH CH5599358A patent/CH380272A/en unknown
- 1958-02-18 FR FR1202186D patent/FR1202186A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242309B (en) * | 1961-08-25 | 1967-06-15 | Du Pont | Process for the production of coatings from coating agents based on polymers of tetrafluoroethylene and organopolysiloxane resins |
US4605695A (en) * | 1983-02-24 | 1986-08-12 | Nippon Piston Ring Co., Ltd. | Heat- and abrasion-resistant coating material |
US5008135A (en) * | 1985-09-19 | 1991-04-16 | The Standard Oil Company | Epoxy fluorocarbon coating compositions and the process to make the same |
CN106661359A (en) * | 2014-08-04 | 2017-05-10 | 索尔维特殊聚合物意大利有限公司 | Powder composition |
US11001721B2 (en) | 2014-08-04 | 2021-05-11 | Solvay Specialty Polymers Italy S.P.A. | Powder composition |
CN112143301A (en) * | 2020-03-31 | 2020-12-29 | 北京博研中能科技有限公司 | Thermosetting corrosion-resistant wear-resistant coating material and preparation and use methods thereof |
CN112143301B (en) * | 2020-03-31 | 2022-10-11 | 北京博研中能科技有限公司 | Thermosetting corrosion-resistant wear-resistant coating material and preparation and use methods thereof |
Also Published As
Publication number | Publication date |
---|---|
NL225042A (en) | |
BE564931A (en) | |
CH380272A (en) | 1964-07-31 |
DE1250035B (en) | 1967-09-14 |
NL107096C (en) | |
FR1202186A (en) | 1960-01-08 |
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