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Patent Searching and Data


Title:
FILM FOR PACKAGING FIBER
Document Type and Number:
Japanese Patent JPH10237191
Kind Code:
A
Abstract:

To obtain a film for packing fiber comprising a propylenic resin and a specific elastomer, having a strengths required for packaging fibers, such as breaking strength, excellent in flexibility, and little in unpleasant noises caused by the rubbing of the film.

This film for packaging fibers comprises 100 pts.wt. of a propylenic resin and 3-30 pts.wt. of an elastomer having a tan δ peak temperature of -10 to 25°C in a dynamic viscoelasticity spetrum measured at a frequency of 100Hz. The tan δ is originated from the rubber component. The film is preferably obtained by extruding from a T die a blend comprising 100 pts.wt. of a propylene-ethylene random copolymer having a melt flow rate of 0.5-10g/10min and an ethylene content of 3-4wt.% and 3-12 pts.wt. of styrene- isoprene block copolymer wherein the isoprene units of the polyisoprene block are bound in the form of 3, 4 bonds or the hydrogenation product of the block copolymer.


Inventors:
HIRAGORI MASAHIKO
Application Number:
JP4545997A
Publication Date:
September 08, 1998
Filing Date:
February 28, 1997
Export Citation:
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Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
B65D65/40; B29C48/305; C08J5/18; C08L23/16; C08L25/10; B29K23/00; B29L7/00; (IPC1-7): C08J5/18; B29C47/14; B65D65/40; C08L23/16; C08L25/10