Transparent copolyamides from m-xylylene diamine, an aliphatic diamine and terephthalic acid
US4018746A · kind A · utility
40Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1976 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Mar 26, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/265
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There are disclosed and claimed novel polyamides showing transparency and other excellent properties, and the process for making them. The polyamides of the invention are prepared in the known manner and under common conditions by poly-condensing meta-xylylene diamine, which may optionally be partially substituted by para-xylylene diamine, at least one straight chain aliphatic diamine, at least one unsubstituted aromatic dicarboxylic acid and at least one aliphatic saturated dicarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.