SUCCESSIVELY INJECTION MOLDING INTERIOR AND EXTERIOR TRIM FOR AUTOMOTIVE USING THERMOPLASTIC ELASTOMER LAMINATE

Japanese Patent JP3484840

B2

PROBLEM TO BE SOLVED: To facilitate recycling of automobile interior and exterior trims while it is excellent in flow resistance and light in weight by a method wherein it is formed of a skin layer composed of an olefin thermoplastic elastomer composition containing crystalline polyolefin resin, styrene, and isoprene copolymer block, and a base material layer consisting of polypropylene resin.
SOLUTION: (A) 20-85 pts.wt. of crystalline polyolefin resin, (B) (a) copolymer block of styrene or its derivative, and (b) isoprene polymer block or isoprene and butadiene copolymer are contained. They are bonded at 1,2-positions and 3,4-positions to total isoprene unit, and an isoprene unit content is at least 40%. 15-80 pts.wt. of the block copolymer is contained to 100 pts.wt. of total amount of constituents (A) and (B). In that case, hydrogen may be added. The crystalline polyolefin resin (A) is single polymer or copolymer of 2-20C α-olefin.

JPS6225044	BODY MATERIAL FOR AUTOMOBILE
JPS59116217	[Title of the device] The sun roof for cars
JPS60165267	[Title of the device] The reinforcement structure of the bonnet made of a synthetic resin for cars

Kyoko Kobayashi
Yuichi Ito
Akira Uchiyama

JP25164395A

January 06, 2004

September 28, 1995

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Mitsui Chemicals, Inc.

B62D29/04; B29C45/16; B32B25/08; B32B27/32; C08L23/02; C08L53/00; C08L53/02; (IPC1-7): B32B27/32; B29C45/16; B32B25/08; B62D29/04

JP796581A
JP726105A

Sei Yanagihara

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