Pet copolyesters containing succinic and naphthalenedicarboxylic acid moieties having improved barrier properties
US5506014A · kind A · utility
103Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1995 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Sep 1, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are terpolymers having improved barrier properties and tensile strength relative to PET comprising copolyesters derived from acid components comprising about 45 to about 85 mol % terephthalic acid; about 10 to about 40 mol % of at least one naphthalenedicarboxylic acid and about 5 to about 15 mol % of at least one aliphatic dicarboxylic acid having 1 to 6 carbon atoms and glycol component comprising ethylene glycol. The copolyesters of the present invention may be formed into a variety of articles such as blood tubes, serum vials, containers, films and sheeting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.