Polyamide compositions
US5639819A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 9, 1993 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Jul 9, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/265
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A mouldable reinforced polyamide composition comprising; PA1 (a) a polyamide consisting essentially of between about 0.5 and about 99.5 mol. % of aliphatic diamines having 4-12 carbon atoms and a complementary amount of 2-methyl-pentamethylene diamine copolymerized with aliphatic dicarboxylic acids having 6-12 carbon atoms; and PA1 (b) a filler in an amount of 0.5 to 200 parts by weight per 100 parts by weight of said polyamide. The polyamide has an RV greater than about 20. Related polyamides, especially in which the acid is 1,12-dodecanedioic acid, are also disclosed. The polyamides may be used in a wide variety of end-uses, including moulding, and exhibit excellent gloss compared with nylon 6,6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.