Title:
BISXIALLY ORIENTED COMPOSITE POLYPROPYLENE FILMS
Document Type and Number:
Japanese Patent JPS52109577
Kind Code:
A
Abstract:
PURPOSE: Composite films having improved transparency, blocking resistance, and heat-sealing properties at low temperatures, consisting of biaxially oriented polypropylene layers and specific ethylene-butene copolymer layers.
Inventors:
NAKANO MASARU
Application Number:
JP2554876A
Publication Date:
September 13, 1977
Filing Date:
March 11, 1976
Export Citation:
Assignee:
MITSUI PETROCHEMICAL IND
International Classes:
C08F210/00; B29C49/00; B29C55/00; B29C55/14; B32B27/28; B32B27/32; C08F4/20; C08F210/02; C08F210/08; C08F210/16; (IPC1-7): B29D7/24; B32B27/28; B32B27/32; C08F4/20; C08F210/02; C08F210/08