US3082053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of polyesters with covalent compounds to improve dyeability
Assignee: Imperial Chemical Industries Ltd
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Filing: 1960-01-20
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Granted: 1963-03-19
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Expires: 1980-01-20
Abstract
No abstract record available.
Inventors
- 👤 Goodings Eric Paul
- 👤 Taylor George Wright
- 👤 O'neill William Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:35
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/22; D01; D01F; D01F6/00; D01F6/58; D01F6/62; D06M; D06M11/00; D06M11/68; D06M11/69; D06M13/00; D06M13/244; D06M13/282; D06M13/285; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/647; D06P1/651; D06P1/65106; D06P1/65143; D06P1/667; D06P1/673; D06P1/67333; D06P1/6735; D06P1/67366; D06P3/00; D06P3/34; D06P3/52; D06P3/521; D06P3/522; D06P3/54; Y; Y10; Y10S; Y10S8/00; Y10S8/04; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR IMPROVING SUSCEPTIBILITY OF TREATING AGENTS SUCH AS DYESTUFFS OF SHAPED POLYALKYLENE TEREPHTHALATES COMPRISING DISPERSING UNDER ANHYDROUS CONDITIONS AND IN THE ABSENCE OF HYDROXYLATING AGENTS THROUGHOUT SAID POLYESTER A COVALENT COMPOUND WHICH IS SUBSEQUENTLY CAPABLE OF BEING COVERTED IN SITU TO AN IONIC SPECIES BY A HYDROXYLATING AGENT, SAID HYDROXYLATING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF WATER, AMMONIA AND AMINE WITHIN NOR MORE THAN THREE MINUTES AT ROOM TEMPERATURE, SAID COVALENT COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF METHIONIC ACID DICHLORIDE, ALKANE SULPHONYL CHLORIDE, ALKANE SULPHONIC ANHYDRIDES, POLYSULPHONYL CHLORIDE, SILICON TETRACHLORIDE, FERIC TRICHLORIDE, ALUMINUM TRICHLORIDE, ZINE DISCHLORIDE AND PHOSPHORUS CONTAINING COMPOUNDS HAVING ONE OF THE FORMULAE
Claim 2
Dependent Claim
111 words
A PROCESS FOR IMPROVING SUSCEPTIBILITY OF TREATING AGENTS SUCH AS DYESTUFFS OF SHAPED POLYALKYLENE TEREPHTHALATES COMPRISING DISPERSING UNDER ANHYDROUS CONDITIONS AND IN THE ABSENCE OF HYDROXYLATING AGENTS THROUGHOUT SAID POLYESTER A COVALENT COMPOUND WHICH IS SUBSEQUENTLY CAPABLE OF BEING COVERTED IN SITU TO AN IONIC SPECIES BY A HYDROXYLATING AGENT, SAID HYDROXYLATING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF WATER, AMMONIA AND AMINE WITHIN NOR MORE THAN THREE MINUTES AT ROOM TEMPERATURE, SAID COVALENT COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF METHIONIC ACID DICHLORIDE, ALKANE SULPHONYL CHLORIDE, ALKANE SULPHONIC ANHYDRIDES, POLYSULPHONYL CHLORIDE, SILICON TETRACHLORIDE, FERIC TRICHLORIDE, ALUMINUM TRICHLORIDE, ZINE DISCHLORIDE AND PHOSPHORUS CONTAINING COMPOUNDS HAVING ONE OF THE FORMULAE
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |