Patent US4451264A successfully refreshed from Google Patents.
US4451264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface coloring of polyvinyl resins
Assignee: Formulabs Industrial Inks Inc
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Filing: 1982-09-27
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Granted: 1984-05-29
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Expires: 2002-09-27
Abstract
Abstract This invention is directed to inks (coloring solutions) for polyvinyl resin surfaces, particularly PVC wire insulation color coding, where the ink consists essentially of a Color Index Solvent dye dissolved in a liquid halogenated hydrocarbon solvent having 1-2 carbon atoms. A preferred solvent is dichloromethane.
Inventors
- 👤 Donald C. Ulry
- 👤 Charles G. Cosner
- 👤 Thomas D. Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:59
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06P1/924; Y; Y10; Y10S; Y10S8/00; Y10S8/938
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
76 words
A process for the coloring of water insoluble, organic solvent resistant, electrical insulator polyvinyl resins which process comprises: (A) contacting a surface area of said polyvinyl resin with a liquid, nonflammable, halogenated hydrocarbon solvent having 1-2 carbon atoms where halogen is chlorine, fluorine or both, and a solvent dye dissolved in said solvent; (B) at about room temperature for a time sufficient to color said surface area; and (C) removing residual solvent from said surface area.
Claim 2
Dependent Claim
76 words
A process for the coloring of water insoluble, organic solvent resistant, electrical insulator polyvinyl resins which process comprises: (A) contacting a surface area of said polyvinyl resin with a liquid, nonflammable, halogenated hydrocarbon solvent having 1-2 carbon atoms where halogen is chlorine, fluorine or both, and a solvent dye dissolved in said solvent; (B) at about room temperature for a time sufficient to color said surface area; and (C) removing residual solvent from said surface area.
Claim 3
Dependent Claim
78 words
The process of claim 1 wherein said polyvinyl resin is selected from the class consisting of: polyvinyl chloride, polyvinyl dichloride, polyvinyl fluoride, polyvinyl acetate, polyvinyl propionate, polyvinyl butyrate, polyvinyl acetal, polyvinyl butyral, polyvinyl formal, polyvinylidene chloride, polyvinylidene fluoride; the copolymers of vinyl chloride, vinyl fluoride, vinyl acetate, vinyl propionate, vinyl butyrate, vinylidene chloride, vinylidene fluoride, acrylate and acrylonitrile monomers; and graft polymers of polyvinyl chloride, polyvinyl acetate, polyvinylidene chloride with ethylene vinyl acetate or ethylene propylene diene monomers.
Claim 4
Dependent Claim
28 words
The process of claim 1 wherein said polyvinyl resin is selected from the group consisting of: polyvinyl chloride, polyvinyl dichloride, polyvinyl fluoride, polyvinyl(chloride-acetate), poly(vinylchloride-vinylidene chloride), and poly(vinyl chloride-methylmethacrylate).
Claim 5
Dependent Claim
10 words
The process of claim 1 wherein said chloromethane is dichloromethane.
Claim 6
Dependent Claim
25 words
The process of claim 1 wherein said solvent dye is selected from the class consisting of anthraquinone, azine, azo, phthalocyanine, triarylmethane, diphenylmethane, styryl, and xanthene.
Claim 7
Dependent Claim
21 words
The process of claim 6 wherein said anthraquinone dye is 1,4-bis(R-amino)anthraquinone where R is alkyl having 1-6 carbon atoms or aryl.
Claim 8
Dependent Claim
65 words
A process for the coloring of electrical insulator quality polyvinyl resins, which process comprises: (A) contacting a surface area of said polyvinyl resin with an ink consisting of (a) dichloromethane solvent and (b) dye dissolved in said solvent; (B) at about room temperature for a time sufficient to color said surface area; and (C) removing residual solvent from said surface area at about room temperature.
Claim 9
Dependent Claim
65 words
A process for the coloring of electrical insulator quality polyvinyl resins, which process comprises: (A) contacting a surface area of said polyvinyl resin with an ink consisting of (a) dichloromethane solvent and (b) dye dissolved in said solvent; (B) at about room temperature for a time sufficient to color said surface area; and (C) removing residual solvent from said surface area at about room temperature.
Claim 10
Dependent Claim
11 words
The process of claim 7 wherein said resin is polyvinyl chloride.
References Cited (Backward Citations)
US2635942A
Cited
US3081140A
Cited
US4014647A
Cited
US3741720A
Cited
US3845081A
Cited
US3830626A
Cited
US4015934A
Cited
JPS507870A
Cited
US4081240A
Cited
US3909442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |