US3865617A
Expired / Lapsed
US
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Method of coating by redox polymerization
Assignee: Toyota Motor Corp
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Filing: 1972-07-17
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Granted: 1975-02-11
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Expires: 1992-07-17
Abstract
Abstract Method of coating a metallic object with a vinyl base polymerized film by immersing the metallic object in an aqueous organic solvent solution of a water insoluble vinyl monomer containing a metal ion releasing agent and a polymerization catalyst.
Inventors
- 👤 Syozo Shimizu
- 👤 Hiroshi Shinohara
- 👤 Toshihito Kondou
- 👤 Norimasa Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:08
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D7/16; C; C09; C09D; C09D5/00; C09D5/08; C09D5/088
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
A METHOD OF COATING A METAL OBJECT BY REDOX POLYMERIZATION, WHICH COMPRISES THE STEPS OF DISSOLVING 1-50% BY WEIGHT OF SAID SOLUTION OF AT LEAST ONE WATER INSOLUBLE VINYL OR DIVINYL MONOMER IN AN AQUEOUS SOLUTION CONTANING 0.5:95% OF A HYDROPHILLIC ORGANIC SOLVENT FOR SAID MONOMER; ADJUSTING THE PH VALUE OF THE RESULTING SOLUTION TO 0.5-5.5 BY INTRODUCING AN ACID WHICH IS A METAL ION RELEASING AGENT FOR THE METAL IN SAID METAL OBJECT TO BE COATED; ADDING AT LEAST ONE POLYMERIZATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PEROXIDES, PERCHLORATES, CHLORATES AND PERSULFATES TO SAID SOLUTION TO PRO: DUCE A FILM-FORMING SOLUTION HAVING A TEMPERATURE BETWEEN -20*C. AND 60*C AND FORMING A POLYMERIZED FILM OF VINYL POLYMER ON SAID METAL OBJECT WHILE IMMERSING SAID OBJECT IN SAID FILM-FORMING.
Claim 2
Independent Claim
129 words
A METHOD OF COATING A METAL OBJECT BY REDOX POLYMERIZATION, WHICH COMPRISES THE STEPS OF DISSOLVING 1-50% BY WEIGHT OF SAID SOLUTION OF AT LEAST ONE WATER INSOLUBLE VINYL OR DIVINYL MONOMER IN AN AQUEOUS SOLUTION CONTANING 0.5:95% OF A HYDROPHILLIC ORGANIC SOLVENT FOR SAID MONOMER; ADJUSTING THE PH VALUE OF THE RESULTING SOLUTION TO 0.5-5.5 BY INTRODUCING AN ACID WHICH IS A METAL ION RELEASING AGENT FOR THE METAL IN SAID METAL OBJECT TO BE COATED; ADDING AT LEAST ONE POLYMERIZATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PEROXIDES, PERCHLORATES, CHLORATES AND PERSULFATES TO SAID SOLUTION TO PRO: DUCE A FILM-FORMING SOLUTION HAVING A TEMPERATURE BETWEEN -20*C. AND 60*C AND FORMING A POLYMERIZED FILM OF VINYL POLYMER ON SAID METAL OBJECT WHILE IMMERSING SAID OBJECT IN SAID FILM-FORMING.
Claim 3
Dependent Claim
55 words
The coating method of claim 1, wherein the said vinyl monomer is selected from the group consisting of acrylonitrile, methacrylonitrile, methyl acrylate, methyl methacrylate, acrylamide, methacrylamide, ethyl acrylate, ethyl methacrylate, methyl vinyl ketone, glycidil acrylate, glycidil methacrylate, vinyl acetate, acrolein, ethyl vinyl ketone, vinyltoluene, styrene, Alpha -methylstyrene 2-hydroxyethyl methacrylate, ethyl vinyl ether and vinyl pyrrolidone.
Claim 4
Dependent Claim
30 words
The coating method of claim 1, wherein said divinyl monomer is selected from the group consisting of N,N''-methylene-bis acrylamide, divinyl-sulfone, divinylbenzene, ethylene glycol dimethacrylate, ethylene glycol diacrylate and calcium acrylate.
Claim 5
Dependent Claim
46 words
The coating method of claim 1, wherein said hydrophilic organic solvent is selected from the group consisting of methyl alcohol, ethyl alcohol, propyl alcohol, butyl alcohol, N,N-dimethyl formamide, dimethylsulfoxide, dioxane, N,N-dimethyl acetamide, ethyl acetate, methyl ethyl ketone, methyl isobutyl ketone, butyl cellosolve, diacetone alcohol and acetonitrile.
Claim 6
Dependent Claim
70 words
The coating method of claim 1, wherein said metal ion releasing agent is selected from the group consisting of formic acid, acetic acid, propionic acid, butyric acid malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, maleic acid, itaconic acid, benzoic acid, O-phthalic acid, terephthalic acid, trimetic acid, pyromellitic acid, crotonic acid, methacrylic acid, sulfurtic acid, nitric acid, hydrochloric acid, fluoric acid, chromic acid, phosphoric acid and boric acid.
Claim 7
Dependent Claim
47 words
The coating method of claim 1, wherein said polymerization catalyst is selected from the group consisting of hydrogen peroxide, cumene hydroperoxide, p-menthane hydroperoxide, lauroyl peroxide, t-butylperoxide, t-butylhydroperoxide, t-butylperbenzoate, methyl ethyl ketone peroxide, cyclohexanone peroxide; peroxides of potassium persulfate, ammonium persulfate, potassium perchlorate, sodium perchlorate and sodium chlorate.
Claim 8
Dependent Claim
35 words
The coating method of claim 1, wherein the metal object to be coated is selected from the group consisting of Copper, Zinc, Chromium, Iron, Cobalt, Nickel, Cadmium, Titanium, Molybdenum, Aluminum, Lead, Tin, and alloys thereof.
Claim 9
Dependent Claim
25 words
The coating method of claim 1, in which the concentration of the polymerization catalyst is 1 X 10 3 - 1 X 10 1 mol/l.
Claim 10
Dependent Claim
22 words
The coating method of claim 1, in which the metal object to be coated is immersed for 0.5-20 minutes in the solution.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |