Elastomeric shaped article and method for preparing the same
US4315882A · kind A · utility
31Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1980 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | Sep 11, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/09
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved shaped article can be prepared from a blockcopolyetherester by (a) mixing the same with poly(butylene terephthalate) at a temperature of about 200.degree. to about 230.degree. C. whereby fine fragments of poly(butylene terephthalate) which maintains its own crystalline phase are dispersed in the matrix of the blockcopolyetherester, and (b) molding the mixture at a temperature below the melting point of the poly (butylene terephthalate). The addition of an ester wax and/or a calcium soap improves the extrusion-moldability of the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.