Thermoplastic elastomer composition and composite molded product

Details Thermoplastic elastomer composition and composite molded product Thermoplastic elastomer composition and composite molded product

1996-10-22

1999-06-08

Short, Patricia A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 92C, 525 92F, C08L 5302, C08L 6702, C08L 7504, C08L 7700

Patent

active

059105402

ABSTRACT:
The present invention relates to a thermoplastic elastomer composition comprising the following components (A) and (B), and to a composite molded product comprising a resin layer and an elastomer layer containing said composition as the base material. Component (A): 5 to 95% by weight of a styrene type block copolymer or a hydrogenated product thereof, comprising block (a) which is made of a polymer of styrene or a derivative thereof, and block (b) which is made of an isoprene homopolymer or a copolymer of isoprene and butadiene, wherein the total amount of the 1,2-bond and the 3,4-bond in the isoprene polymer part in block (b) is not less than 40% of the total isoprene bond unit. Component (B): 95 to 5% by weight of one or more thermoplastic elastomers which are selected from the group consisting of polyester type thermoplastic elastomers, polyamide type thermoplastic elastomers, and polyurethane type thermoplastic elastomers. The composition of the present invention exhibits excellent heat fusion properties to both an olefin type resin and a nonolefin type resin, and gives a composite molded product having a high peeling strength, comprising said resin and said elastomer.

REFERENCES:
patent: 4994508 (1991-02-01), Shiraki
patent: 5002625 (1991-03-01), Naritomi
patent: 5149589 (1992-09-01), Naritomi
patent: 5439976 (1995-08-01), Kinoshita
Hytrel 4056, Dupont product bulliteu HYT-102A.

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