Polyester elastomer foam and foam material
US9156959B2 · kind B2 · utility
2Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2012 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Sep 11, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249983
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is provided a polyester elastomer which is excellent in compression set characteristics and has a micro cell structure.The polyester elastomer foam is formed by allowing a polyester elastomer composition containing a polyester elastomer having a melting point of 180 to 240° C. and an epoxy-modified polymer to expand. The epoxy-modified polymer is an epoxy-modified polymer having a weight average molecular weight of 5,000 to 100,000 and an epoxy equivalent of 100 to 3000 g/eq.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.