US3830626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contrast dyeing of articles manufactured from plasticized polyvinyl chloride homopolymers and copolymers
Assignee: Individual
•
Filing: 1972-07-14
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Granted: 1974-08-20
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Expires: 1992-07-14
Abstract
Abstract Articles manufactured from uniformly colored plasticized polyvinyl chloride homopolymers and copolymers are dyed to provide them with the non-uniformly colored appearance usually associated with similar articles made from traditional materials. A solution in a volatile organic solvent of a dye soluble in the plasticized polyvinyl chloride homopolymers or copolymers is selectively applied to certain portions of the articles and permitted to penetrate into those portions to provide color contrast between the dyed and undyed portions of the article.
Inventors
- 👤 B Rosenberger
- 👤 E Czypionka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:59
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/0096; D06P1/90; D06P1/92; D06P1/928
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
16 words
The method of claim 1, wherein the dye is applied to said shaped article by spraying.
Claim 2
Dependent Claim
18 words
The method of claim 2, wherein the dye is applied in a dispersion in a volatile dispersing agent.
Claim 3
Dependent Claim
43 words
The method of claim 2, wherein at least two dyes of differing color are applied separately to selected areas of the surface of said article to provide a contrast in color between the area receiving one dye and the area receiving another dye.
Claim 4
Dependent Claim
17 words
The method of claim 1, wherein the dye is applied in solution in a volatile solvent therefor.
Claim 5
Dependent Claim
17 words
The method of claim 5, wherein the shaped article is composed of a plasticized vinyl chloride homopolymer.
Claim 6
Dependent Claim
21 words
The method of claim 5, wherein the shaped article is composed of a plasticized copolymer of vinyl cHloride and vinylidene chloride.
Claim 7
Dependent Claim
21 words
The method of claim 5, wherein the shaped article is composed of a plasticized copolymer of vinyl chloride and vinyl acetate.
Claim 8
Dependent Claim
31 words
The method of claim 5, wherein the shaped article is composed of a mixture of plasticized vinyl chloride homopolymer and a copolymer of vinyl chloride with vinylidene chloride or vinyl acetate.
Claim 9
Dependent Claim
18 words
The method of claim 5, wherein a film-forming agent is incorporated in said solution to form a lacquer.
Claim 10
Independent Claim
151 words
A method for positively and quickly contrast dyeing solid flexible articles with firm unsoftened surfaces manufactured from plasticized polyvinyl chloride polymers selected from the group consisting of homopolymers of vinyl chloride, copolymers of vinyl chloride and vinylidene chloride, copolymers of vinyl chloride and vinyl acetate, and mixtures thereof, which comprises applying at ambient temperature to said articles a dye soluble per se in said solid plasticized polymers, said dye being selected from the group consisting of azo, aniline, azine, xanthine and anthraquinone dyes and dyestuffs containing metal-complexes which are soluble in the plasticizer of said polymers, said dye being positively applied to said articles as a solution in a volatile organic solvent containing up to 2 percent, by weight, of the dye base on the total weight of the solution, thereby causing the soluble dye to penetrate into the article to form a dyed layer therein and the solvent to evaporate.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |