Amorphous polyamide resin and molded article
US11292877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2018 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Mar 22, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is an amorphous polyamide resin that has a small weight change rate under hot and humid conditions and that can maintain a good appearance even when formed into a molded article and placed under hot and humid conditions. Also provided is a molded article including the amorphous polyamide resin. An amorphous polyamide resin includes: constituent units derived from a diamine and constituent units derived from a dicarboxylic acid, not less than 70 mol % of the constituent units derived from a diamine being constituent units derived from isophoronediamine, the constituent units derived from a dicarboxylic acid including constituent units derived from an α,ω-straight chain aliphatic dicarboxylic acid having from 8 to 14 carbons and constituent units derived from an aromatic dicarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.