Polyester composition
US5023291A · kind A · utility
12Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1989 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Jul 13, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a polyester composition which comprises a polyester with a terminal carboxyl group content of 40 to 80 equivalents/10.sup.6 and 0.0 to 5 wt %, based on the total amount of the polyester composition, aluminum oxide particles of 0.005 to 5 .mu.m in average particle diameter and which has a melt resistivity of 6 x 10.sup.6 to 5 x 10.sup.8 .OMEGA..cm. By using the polyester composition, it is possible to successively produce a film having excellent wear resistance and flatness over a long production run.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.