Copolyesters of phthalic acids and hydantoins
US4102867A · kind A · utility
2Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1976 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Nov 15, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/6856
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The disperse dyeability and moisture absorbency of a fiber and film forming poly(ethylene phthalate) ester is improved by including a hydantoin alcohol, hydantoin diacid, or a diester as a comonomer in the mixture of a phthalic acid or diester thereof and ethylene glycol to produce a random copolyester. The dyed fibers are useful for making various kinds of fabrics and articles made therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.