Polyester/polyamide blends with improved color
US6239233A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1998 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Oct 9, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention involves the preparation and use of polyester blend containing at least one acid terminated polyamide which give the improved color as compared to the prior art. The present invention comprises polyester blend composition having improved color comprising: PA1 (A) about 99.98 to about 95 weight percent of a polyester which comprises PA2 (1) a dicarboxylic acid component comprising repeat units from at least 85 mole percent terephthalic acid, and PA2 (2) a diol component repeat units from at least 85 mole percent ethylene glycol, based on 100 mole percent dicarboxlic acid and 100 mole percent diol; and PA1 (B) acid terminated polyamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.