Process for the preparation of biaxially extended polyester film

Details Process for the preparation of biaxially extended polyester film Process for the preparation of biaxially extended polyester film

1996-12-12

1998-05-26

Acquah, Samuel A.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

528275, 528282, 528302, 524779, 524786, 524788, 524789, 428357, 428402, B29C 4908, D01D 512, C08K 308

Patent

active

057560323

ABSTRACT:
A biaxially extended polyester film comprising light calcium carbonate particles, spherical silica particles and .gamma.- or .delta.-alumina particles or a mixture thereof treated with a silane coupling agent prepared by the inventive process possesses excellent surface and physical properties.

REFERENCES:
patent: 5188891 (1993-02-01), Takeda et al.
patent: 5304324 (1994-04-01), Yoneda et al.
patent: 5306538 (1994-04-01), Kurihara et al.
patent: 5316714 (1994-05-01), Yoneda et al.
patent: 5434000 (1995-07-01), Konagaya et al.

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