Modified polyester composition
US4203887A · kind A · utility
29Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1978 |
| Grant date | May 20, 1980 |
| Priority date | — |
| Expiry date | Jan 19, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L87/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Modified thermoplastic polyester compositions are provided which comprise (a) a poly(1,4-butylene terephthalate) resin and, optionally, a poly(ethylene terephthalate) resin and (b) a modifier therefor comprising (i) a silane-treated clay; (ii) acicular calcium metasilicate, (iii) a combination of segmented copolyester and an aromatic polycarbonate; or (iv) novaculite or a combination thereof. The modifiers provide easier processability and enhanced resistance to warpage in articles molded from the compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.