Polyamide and polyamide composition
US9023975B2 · kind B2 · utility
2Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2010 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Feb 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
[Problem to be Solved]To provide a polyamide having a high melting point, which has excellent strength, toughness, and stability under heating.[Solution]This polyamide is obtained by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end amount of 30 to 60μ equivalents/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.