Process for producing a porous film

Details Process for producing a porous film Process for producing a porous film

1990-10-09

1991-12-17

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264 26, 264 41, 264 80, 2642106, 2642107, 2642888, 2642902, B29C 6720

Patent

active

050733168

ABSTRACT:
A process for producing a porous film comprising polyolefin resin, a filler and an ester of dipentaerythritol having a ratio 3 to 70% residual OH groups.

REFERENCES:
patent: 4076656 (1978-02-01), White et al.
patent: 4472328 (1984-09-01), Sugimoto et al.
patent: 4767580 (1988-08-01), Shingo et al.
patent: 4794128 (1988-12-01), Vawaguchi et al.

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