Patent · US Expired

Polyester film having improved abrasion resistance manufactured from particle-filled polyester having nucleating agent dispersed therein

US4801640A · kind A · utility

27Cited by

14References

15Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Hermann Dallmann · Wiesbaden, DE
Werner Schaefer · Hofheim, DE
Wolfgang Gawrisch · Gau-Bischofsheim, DE
Hartmut Hensel · Schlangenbad, DE

Key dates

Filing date	Jan 9, 1986
Grant date	Jan 31, 1989
Priority date	—
Expiry date	Jan 9, 2006

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2367/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention concerns a polyester film with improved abrasion resistance, dimensional stability, drawability and slip properties. The film is characterized by the fact that it contains 0.005 to 5.0% by weight of organic, preferably hardened or crosslinked, particles with narrow particle size distribution in a range between 0.01 and 5 microns, as well as a nucleating agent in an amount from 0.01 to 10% by weight, both values related to the weight of the polymers which form the film.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.