Biaxial oriented polyester film

Details Biaxial oriented polyester film Biaxial oriented polyester film

1997-06-30

1999-06-15

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

428 357, 428212, 428480, 428910, 525444, B29D 2200, B32B 702, B32B 2706, C08F 2000

Patent

active

059120606

ABSTRACT:
A biaxial oriented polyester film which is obtained by using as a main raw material a mixture comprising a thermoplastic polyester resin (i) wherein an acid component is mainly composed of a terephthalic or naphthalenedicarboxylic acid component and a thermoplastic polyester resin (ii) having substantially a phase-separated form to the resin (i), and orienting an unoriented sheet of the mixture wherein an illuminance anisotropic ratio (IAR) of transmitted scattering light satisfies the following condition of 0.1.ltoreq.IAR.ltoreq.1.0.

REFERENCES:
patent: 4228218 (1980-10-01), Takayanagi et al.
patent: 4879341 (1989-11-01), Tsumiyama et al.
patent: 5055337 (1991-10-01), Shinonome et al.
patent: 5204418 (1993-04-01), Yasue et al.
patent: 5354595 (1994-10-01), Yamamoto et al.
patent: 5612105 (1997-03-01), Okamoto et al.

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