Thermoplastic elastomer
US4797437A · kind A · utility
2Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1983 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Dec 1, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain polyvinylpyrrolidone and preferably also contain guanidine stabilizer, phosphorus stabilizer and diphenylamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.