Method of producing thermoplastic elastomers having alternate cr

Details Method of producing thermoplastic elastomers having alternate cr Method of producing thermoplastic elastomers having alternate cr

Filed on

1988-03-29

Date issued

1989-02-21

Examiner

Welsh, Maurice J.

Patent Class

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

SubClass

Synthetic resins

SubSubClass

From reactant having at least one -n=c=x group as well as...

Other Related Categories

528 65, C08G 1812

Type

Patent

Status

active

Patent number

048066133

Description

ABSTRACT:
A method of preparing a thermoplastic elastomer having A blocks and at least one B block, wherein said A blocks are crystalline at temperatures below about 60.degree. C. and said B block(s) is amorphous at temperatures above about -20.degree. C., said A blocks each being polyethers derived from monomers of oxetane and its derivatives and/or tetrahydrofuran and its derivatives, the method comprising

REFERENCES:
patent: 4361526 (1982-11-01), Allen
patent: 4393199 (1983-07-01), Manser
patent: 4483978 (1984-11-01), Manser
U.S. patent application Ser. No. 06/925,660, 10/86, Manser et al.

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