Polyamide resin composition
US7807742B2 · kind B2 · utility
18Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2006 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Sep 19, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyamide resin composition comprising a polyamide (X) having a diamine constituent unit which is mainly composed of a m-xylylenediamine unit and a dicarboxylic acid constituent unit which is mainly composed of an adipic acid unit; and specific amounts of a phosphorus acid antioxidant and alkaline component. The polyamide (X) is characterized by a specific range of terminal-group concentration balance and a specific amino-group reaction rate. This composition can simultaneously achieve inhabitation of yellow discoloration and reduction of number of gels or fish eyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.