Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ
Patent
1986-12-24
1988-12-27
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
264154, 2642888, 2642902, 521134, 525240, B29C 6720, B29C 5502
Patent
active
047939567
ABSTRACT:
A process for preparing a porous film or sheet, which process comprises melt-forming a composition into a film or sheet and then stretching the thus-formed film or sheet at a temperature in the range of 30.degree. to 110.degree. C., said composition containing:
REFERENCES:
patent: 4472328 (1984-09-01), Sugimoto et al.
Komori Shigeki
Koutsuka Toshio
Nogiwa Motomi
Yoshida Shuichi
Yoshikawa Toshitsune
Anderson Philip
Nippon Petrochemicals Company Limited
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