Patent US3856753A successfully refreshed from Google Patents.
US3856753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolyester polymer of enhanced dyeability
Assignee: Akzona Inc
•
Filing: 1972-07-17
•
Granted: 1974-12-24
•
Expires: 1992-07-17
Abstract
Abstract Copolyester polymer of enhanced dyeability said copolyester having, as an integral part of the polymer chain, repeating sulfonate group containing comonomer dye sensitizing units such as the sodium salt of N-methyl-N(3,5dicarbomethoxy)benzenesulfonyl taurine.
Inventors
- 👤 C Henry
- 👤 G Mcneely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:21
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C08G63/6886; Y; Y10; Y10S; Y10S8/00; Y10S8/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
38 words
COPOLYMER POLYMER CONSISTING ESSENTIALLY OF SEGMENTS SELECTED FROM THE GROUP CONSISTING OF ALKYLENE TEREPHTHALATE AND ALKYLENE ISOPHTHALATE AND CONTAINING UNITS DERIVED FROM ABOUT 0. 5 TO ABOUT 10 MOLE PERCENT SULFONAMIDE COMONOMER DYE SENSITIZING REACTANT HAVING THE FORMULA:
Claim 2
Dependent Claim
38 words
COPOLYMER POLYMER CONSISTING ESSENTIALLY OF SEGMENTS SELECTED FROM THE GROUP CONSISTING OF ALKYLENE TEREPHTHALATE AND ALKYLENE ISOPHTHALATE AND CONTAINING UNITS DERIVED FROM ABOUT 0. 5 TO ABOUT 10 MOLE PERCENT SULFONAMIDE COMONOMER DYE SENSITIZING REACTANT HAVING THE FORMULA:
Claim 3
Dependent Claim
54 words
Copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from about 0.5 to about 10 mole percent containing sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 4
Dependent Claim
54 words
Copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from about 0.5 to about 10 mole percent containing sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 5
Dependent Claim
15 words
Copolyester polymer according to claim 2 wherein M of said dye sensitizing reactant is Na.
Claim 6
Dependent Claim
57 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from about 0.5 to about 5 mole percent sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 7
Dependent Claim
57 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from about 0.5 to about 5 mole percent sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 8
Dependent Claim
56 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from 0.5 to about 5 mole percent sulfonamide comonomer dye sensitizing reactant containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 9
Dependent Claim
56 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from 0.5 to about 5 mole percent sulfonamide comonomer dye sensitizing reactant containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 10
Dependent Claim
15 words
Copolyester polymer according to claim 5 wherein M of said dye sensitizing reactant is Na.
Claim 11
Dependent Claim
56 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from 0.5 to about 5 mole percent sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 12
Dependent Claim
56 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from 0.5 to about 5 mole percent sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 13
Dependent Claim
15 words
Copolyester polymer according to claim 7 wherein M of said dye sensitizing reactant is Na.
Claim 14
Dependent Claim
56 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from 0.5 to about 5 mole percenT sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 15
Dependent Claim
56 words
Cationic dyeable fiber forming copolyester polymer consisting essentially of segments selected from the group consisting of alkylene terephthalate and alkylene isophthalate and containing units derived from 0.5 to about 5 mole percenT sulfonamide comonomer dye sensitizing reactants containing sulfonate groups as a repeating intralinear part of the polymer chain, said dye sensitizing reactant having the formula:
Claim 16
Dependent Claim
16 words
Copolyester polymer according to claim 9 where in M of said dye sensitizing reactant is Na.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |