Polyester film
US5324794A · kind A · utility
16Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1993 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Apr 20, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aliphatic polyester film which is synthesized from a glycol and an aliphatic polybasic acid having a melt viscosity of 2,000-100,000 poises at a temperature of 190.degree. C. and a shear rate of 100 sec.sup.-1, and having a melting point of 70.degree.-200.degree. C. The film is excellent in heat stability and mechanical strength as well as biodegradability when buried in the earth; and has low combustion heat than polyethylene and polypropyrene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.