Biaxially oriented polyester film

Details Biaxially oriented polyester film Biaxially oriented polyester film

1990-03-05

1993-01-12

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428142, 428143, 428323, 428480, 428644, 428900, 428910, B23B 516

Patent

active

051789434

ABSTRACT:
A biaxially oriented polyester film composed of an intimate mixture of an aromatic polyester, barium sulfate particles having an average particle diameter of 0.1 to 10 micrometers, and an alkali metal or alkaline earth metal salt of a higher fatty acid having 8 to 34 carbon atoms. The fatty acid metal salt has a melting point in the range of 120.degree. to 320.degree. C. The biaxially oriented polyester film has substantially no difference in surface properties such as roughness and the degree of gloss between its surface and back, and can be produced industrially advantageously with high producibility and excellent operability.

REFERENCES:
patent: 4761327 (1988-08-01), Hamano et al.
patent: 4818581 (1989-04-01), Katoh et al.
patent: 4886703 (1989-12-01), Hasumi et al.
patent: 4937224 (1990-06-01), Yamagishi et al.
Chemical Abstracts, vol. 108, No. 20, May 16, 1988, Abstract No. 177252h.

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