Copolymer foam with polyamide blocks and polyether blocks
US11008464B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2017 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Jul 17, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2433/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a non-cross-linked copolymer foam with polyamide blocks and polyether blocks, wherein: the polyamide blocks of the copolymer have an average molar mass of from 200 to 1,500 g/mol; the polyether blocks of the copolymer have an average molar mass of from 800 to 2,500 g/mol; and the weight ratio of the polyamide blocks to the polyether blocks of the copolymer is from 0.1 to 0.9. The invention also relates to a method for manufacturing said foam and items manufactured from said foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.