Title:
The polypropylene regin constituent for an extrusion lamination, and a layered product
Document Type and Number:
Japanese Patent JP6213179
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a polypropylene resin composition having a small quantity of neck-in, high spreadability, and excellent high-speed extrusion lamination processability, and a laminate excellent in bag drop durability and impact resistance.SOLUTION: The polypropylene resin composition for extrusion lamination comprises: 3 to 99 wt.% of a propylene polymer (X) containing 10.0 mol% or less of ethylene and/or 1-butene in a total amount as a comonomer and showing a strain hardening degree (λmax) of 1.1 or more in the measurement of elongation viscosity; and 1 to 97 wt.% of a propylene-ethylene block copolymer (Y). Otherwise, the polypropylene resin composition for extrusion lamination comprises: 3 to 99 wt.% of a propylene polymer (X) containing 10.0 mol% or less of ethylene and/or 1-butene in a total amount as a comonomer; and 1 to 97 wt.% of a propylene-ethylene block copolymer (Y); and the resin composition shows a strain hardening degree (λmax) of 1.1 or more in the measurement of elongation viscosity.
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Inventors:
Koichi Hirayama
Application Number:
JP2013239968A
Publication Date:
October 18, 2017
Filing Date:
November 20, 2013
Export Citation:
Assignee:
Japan Polypropylene Corporation
International Classes:
C08L53/00; B32B27/32; C08F210/06; C08F297/08; C08L23/14; C08L23/16
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