US3199940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing polypropylene blends
Assignee: Rhodiaceta SA
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Filing: 1961-12-29
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Granted: 1965-08-10
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Toureille Daniel Cesar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:52
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/6515; D06P1/65162; D06P1/65106; D06P1/65118; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/79; D06P3/82; D06P3/8204; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR DYING A MATERIAL CONSISTING ESSENTIALLY OF A BLEND OF CRYSTALLINE POLYPROPYLENE AND A POLYAMIDE, WHICH COMPRISES DYEING THE MATERIAL AT A TEMPERATURE ABOVE 95*C. AND IN THE PRESENCE OF ORTHOPHENYLPHENOL AND A COMPOUND WHICH IS A NON-SOLVENT FOR THE SAID BLEND UNDER THE TREATMENT CONDITIONS AND IS SELECTED FROM THE CLASS CONSISTING OF LIQUID MONOCYCLIC OR BICYCLIC HYDROCARBONS AND THEIR CHLORINATION PRODUCTS, THE WEIGHT RATIO OF THE ORTHOPHENYLPHENOL AND THE SAID NON-SOLVENT COMPOUND BEING BETWEEN THE LIMITS 5:1 TO 2:1, AND THE WEIGHT RATIO OF DYE MATERIAL TO SAID NON-SOLVENT COMPOUND IS BETWEEN 6:1 AND 0.12:1.
Claim 2
Dependent Claim
99 words
A PROCESS FOR DYING A MATERIAL CONSISTING ESSENTIALLY OF A BLEND OF CRYSTALLINE POLYPROPYLENE AND A POLYAMIDE, WHICH COMPRISES DYEING THE MATERIAL AT A TEMPERATURE ABOVE 95*C. AND IN THE PRESENCE OF ORTHOPHENYLPHENOL AND A COMPOUND WHICH IS A NON-SOLVENT FOR THE SAID BLEND UNDER THE TREATMENT CONDITIONS AND IS SELECTED FROM THE CLASS CONSISTING OF LIQUID MONOCYCLIC OR BICYCLIC HYDROCARBONS AND THEIR CHLORINATION PRODUCTS, THE WEIGHT RATIO OF THE ORTHOPHENYLPHENOL AND THE SAID NON-SOLVENT COMPOUND BEING BETWEEN THE LIMITS 5:1 TO 2:1, AND THE WEIGHT RATIO OF DYE MATERIAL TO SAID NON-SOLVENT COMPOUND IS BETWEEN 6:1 AND 0.12:1.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |