Title:
POROUS FILM OR SHEET AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP3507114
Kind Code:
B2
Abstract:
PURPOSE: To improve tear strength, stretching irregularity and film thickness irregularity by uniaxially orienting film or sheet obtained by the inflation molding of a compsn. consisting of a polyolefin resin with specific density and a specific melt index, a filler, a plasticizer and a radical generator in a taking- over direction thereof.
CONSTITUTION: A film or sheet obtained by the inflation molding of a compsn. consisting of 100 pts.wt. of a polyolefin resin with density of 0.930g/cm3 or less and a melt index of 2g/10min or less, 100-400 pts.wt. of an optical filler, 0.1-100 pts.wt. of a plasticizer represented by formula (Ar)n-B-(R)m (wherein Ar is a carboxylic acid residue or an alcohol residue having an aromatic group, B is a polyvalent carboxylic acid residue or a polyvalent alcohol residue, R is an aliphatic carboxylic acid residue or an aliphatic alcohol residue, n is 1-8 and m is 0-7) and 0.0001-0.1 pts.wt. of a radical generator is uniaxially oriented in the taking-over direction thereof.
More Like This:
Inventors:
Toshio Fujii
Yutaka Kawai
Yamadera Makoto
Yutaka Kawai
Yamadera Makoto
Application Number:
JP1039894A
Publication Date:
March 15, 2004
Filing Date:
February 01, 1994
Export Citation:
Assignee:
Mitsubishi Plastics Co., Ltd.
International Classes:
B29D7/01; B29C55/04; B29C55/28; C08J9/00; B29K23/00; (IPC1-7): B29C55/28; B29C55/04; C08J9/00
Domestic Patent References:
| JP598057A |