Thermoplastic polyester compositions and films formed using same
US5397827A · kind A · utility
6Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1992 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jul 21, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The thermoplastic polyester compositions of the present invention are characterized by containing special colloidal silica particles having a straight-chain or branched shape, so when formed into film, particularly film for magnetic tape, there are attained superior abrasion resistance, scratch resistance and sliding property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.