Multi-layer polyisophthalate and polyterephthalate articles and process therefor
US4482586A · kind A · utility
46Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1982 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Sep 7, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-layer polyester article, and particularly a beverage bottle having good oxygen and carbon dioxide permeability resistance. At least one layer of the article is made from polyisophthalate and copolymers thereof. The multi-layer articles find particular use as packaging materials, films, and molded containers such as for alcoholic beverages. Various colorants can be added to either one or more of the layers to impart a desired color to the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.