Polyester films containing glass spheres and calcined china clay

Details Polyester films containing glass spheres and calcined china clay Polyester films containing glass spheres and calcined china clay

1995-06-05

1997-05-27

Le, Hoa T.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428331, 428480, B32B 516

Patent

active

056330804

ABSTRACT:
The present invention relates to films or sheets of linear polyester having incorporated therein a combination of glass spheres and calcined clay having certain particle sizes and present in specific amounts based upon the weight of the polyester film. The addition of these fillers improves several properties of the film, including the handleability while maintaining acceptable optical clarity and transparency and to the method of making such films or sheets.

REFERENCES:
patent: 4692480 (1987-09-01), Takahashi et al.
patent: 4990400 (1991-02-01), Endo et al.
patent: 5128205 (1992-07-01), Butler
patent: 5132356 (1992-07-01), Siddiqui
patent: 5137939 (1992-08-01), Siddiqui
Katz, H. S. et al.: "Handbook of Fillers for Plastics" 1987, Van Nostrand Reinhold Company, New York, pp. 143-155.

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