GB1043577A - Process for coating metals - Google Patents
Process for coating metalsInfo
- Publication number
- GB1043577A GB1043577A GB1612264A GB1612264A GB1043577A GB 1043577 A GB1043577 A GB 1043577A GB 1612264 A GB1612264 A GB 1612264A GB 1612264 A GB1612264 A GB 1612264A GB 1043577 A GB1043577 A GB 1043577A
- Authority
- GB
- United Kingdom
- Prior art keywords
- litre
- mole
- polymer
- dispersion
- fluorocarbon polymer
- 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
- 229910052751 metal Inorganic materials 0.000 title abstract 5
- 239000002184 metal Substances 0.000 title abstract 5
- 239000011248 coating agent Substances 0.000 title abstract 2
- 238000000576 coating method Methods 0.000 title abstract 2
- 150000002739 metals Chemical class 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000006185 dispersion Substances 0.000 abstract 5
- 239000000758 substrate Substances 0.000 abstract 5
- 239000003792 electrolyte Substances 0.000 abstract 4
- 229920002313 fluoropolymer Polymers 0.000 abstract 4
- 229920000642 polymer Polymers 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 abstract 2
- -1 polytetrafluoroethylene Polymers 0.000 abstract 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 2
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 abstract 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract 2
- 239000010935 stainless steel Substances 0.000 abstract 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- 239000004159 Potassium persulphate Substances 0.000 abstract 1
- 229960000359 chromic chloride Drugs 0.000 abstract 1
- LJAOOBNHPFKCDR-UHFFFAOYSA-K chromium(3+) trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Cr+3] LJAOOBNHPFKCDR-UHFFFAOYSA-K 0.000 abstract 1
- 235000007831 chromium(III) chloride Nutrition 0.000 abstract 1
- 239000011636 chromium(III) chloride Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 abstract 1
- 235000019394 potassium persulphate Nutrition 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/54—Razor-blades
- B26B21/58—Razor-blades characterised by the material
- B26B21/60—Razor-blades characterised by the material by the coating material
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Chemically Coating (AREA)
Abstract
Fluorocarbon polymer-coated ferrous metal substrates e.g polytetrafluoroethylene-coated razor blades, are produced by contacting the metal substrate with an aqueous dispersion of the fluorocarbon polymer, the dispersion containing from 0.5 to 5% by weight of the polymer and a water-soluble electrolyte capable of acting as a corrosion promotor with respect to the metal substrate, the concentration of the electrolyte and the pH of the dispersion being such that the electrolyte acts as a corrosion promoter. The dispersion may contain from 1 to 3% by weight of the fluorocarbon polymer. The following electrolytes may be used: hydrogen peroxide, 0.5 x 10-4 to 10-2 mole/litre, pH 1.5 to 3.5; potassium dichromate, 1 x 10-4 to 0.5 x 10-2 mole/litre, pH 1.5 to 3.0; potassium persulphate, 0.5 x 10-4 to 0.2 x 10-2 mole/litre, pH 1.5 to 3.3; ferric chloride, 0.5 x 10-4 to 0.5 x 10-2 mole/litre, pH 1.5 to 3.0; or chromic chloride, 0.2 x 10-4 to 0.3 x 10-3 mole/litre, pH 1.5 to 3.3; ferric nitrate, 1.5 x 10-4 to 1.15 x 10-2 mole/litre, pH 1.5 to 3.5. The metal substrate may be of stainless steel. Cutting edges of stainless steel razor blades may be immersed in or sprayed with the dispersion. After deposition of the fluorocarbon polymer on the substrate, the coating may be dried and sintered. The polymer may be polytetrafluoroethylene and the sintering is effected by heating at 350 DEG C. for at least 15 minutes preferably in a non-oxidizing atmosphere or under a high vacuum. The polymer may be the copolymer of tetrafluoroethylene and hexafluoropropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1612264A GB1043577A (en) | 1964-04-17 | 1964-04-17 | Process for coating metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1612264A GB1043577A (en) | 1964-04-17 | 1964-04-17 | Process for coating metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1043577A true GB1043577A (en) | 1966-09-21 |
Family
ID=10071590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1612264A Expired GB1043577A (en) | 1964-04-17 | 1964-04-17 | Process for coating metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1043577A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2219966A2 (en) * | 1971-03-10 | 1974-09-27 | Amchem Prod | Resin coating compsns. from metals - contg. metal ions to control coating wt. |
| US3960610A (en) * | 1966-06-01 | 1976-06-01 | Amchem Products, Inc. | Process for coating metals |
| US4104424A (en) * | 1966-06-01 | 1978-08-01 | Amchem Products, Inc. | Process for coating metals |
-
1964
- 1964-04-17 GB GB1612264A patent/GB1043577A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960610A (en) * | 1966-06-01 | 1976-06-01 | Amchem Products, Inc. | Process for coating metals |
| US4104424A (en) * | 1966-06-01 | 1978-08-01 | Amchem Products, Inc. | Process for coating metals |
| FR2219966A2 (en) * | 1971-03-10 | 1974-09-27 | Amchem Prod | Resin coating compsns. from metals - contg. metal ions to control coating wt. |
| US4347172A (en) | 1971-03-10 | 1982-08-31 | Amchem Products, Inc. | Process and composition for coating metals |
| US4411937A (en) | 1971-03-10 | 1983-10-25 | Amchem Products, Inc. | Process and composition for coating metals |
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