Polyester-polyamide blends with reduced gas permeability and low haze
US6444283B1 · kind B1 · utility
45Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Jul 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to polyester/polyamide blend compositions for forming an article having low haze and reduced gas permeability compared to the polyester alone. More specifically, the invention relates to blends of semi-crystalline polyesters such as PET with low molecular weight polyamides and to the containers and packages for food, beverages, cosmetics, pharmaceuticals and personal care products that can be fabricated from these blends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.