Polyester film for fabrication
US5473004A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1994 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Jul 20, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A biaxially oriented polyester film comprising a copolyester which contains a lubricant having an average particle diameter of no greater than 2.5 .mu.m and has a melting point of from 210.degree. to 245.degree. C., the film having a plane orientation coefficient of from 0.10 to 0.16, a thermal shrinkage at 150.degree. C. of no higher than 10%, and a density of lower than 1.385 g/cm.sup.3, and optionally a refractive index in a direction of thickness of from 1.495 to 1.530 as well as a film plane refractive index of from 1.61 to 1.66 in all directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.