US4049376A
Expired / Lapsed
US
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Dyed copolyesters and method of making
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1976-10-06
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Granted: 1977-09-20
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Expires: 1996-10-06
Abstract
Abstract New dyed copolyesters and their preparation are disclosed. The copolyesters are characterized in that their macromolecular chains include dye moieties chosen from among those of the formulae: ##STR1## in which X is a hydrogen atom or a hydroxy group; X' is a halogen atom; Y is an alkoxy residue, Z 1 is a hydrogen atom or a halogen atom or an alkyl or alkoxy residue and Z 2 is a hydrogen atom or an acylamino residue. These copolyesters can be converted into textile fibers or be used for dyeing of bulk plastic materials and synthetic fibers.
Inventors
- 👤 Alain Yves Le Pape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:05
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C09; C09B; C09B19/00; C09B19/02; C09B48/00; C09B57/00; C09B57/08; C09B57/12; C09B69/00; C09B69/10; Y; Y10; Y10S; Y10S8/00; Y10S8/04; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
47 words
A dyed copolyester wherein the macromolecular chain of the copolyester comprises a unit selected from those of the formulae: ##STR11## where X is hydrogen or hydroxy, X' is halogen, Y is alkoxy, Z 1 is hydrogen, halogen, alkyl or alkoxy and Z 2 is hydrogen or acylamino.
Claim 2
Dependent Claim
47 words
A dyed copolyester wherein the macromolecular chain of the copolyester comprises a unit selected from those of the formulae: ##STR11## where X is hydrogen or hydroxy, X' is halogen, Y is alkoxy, Z 1 is hydrogen, halogen, alkyl or alkoxy and Z 2 is hydrogen or acylamino.
Claim 3
Dependent Claim
130 words
A process for the preparation of a copolyester according to claim 1, which comprises copolymerizing a dicarboxylic acid or an oxyacid and a diol with one or more dyestuffs possessing the reactive groups hydroxy, carboxy or carbalkoxy, wherein the dyestuff has the general formula R.sub.1 - W.sub.1 -- A -- W.sub.2 - R.sub.2 ( 1) where R 1 and R 2 may be the same or different and each represents a hydroxy, carboxy or carbalkoxy group, W 1 and W 2 may be the same or different and each represents a direct bond or a hydrocarbon chain which can carry an atom of oxygen, sulphur or nitrogen, and A represents a dyestuff moiety selected from those represented by the formula (II), (III), (IV), (V), (VI) and (VII) of claim 1.
Claim 4
Dependent Claim
24 words
A process for dyeing synthetic fibers and polymers comprising admixing with a polymer a sufficient amount of the copolyester as defined in claim 1.
Claim 5
Dependent Claim
12 words
A synthetic polymer fiber formed of the copolyester according to claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |