Crystalline block copolymer and process for producing the same

Details Crystalline block copolymer and process for producing the same Crystalline block copolymer and process for producing the same

1991-05-21

1992-10-27

Seidleck, James J.

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

Synthetic resins

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

525249, 525271, 525272, 525314, 524534, C08F29704, C08L 5302

Patent

active

051590220

ABSTRACT:
A crystalline block copolymer containing at least a triblock or at least a radial structure and a process for producing the same, wherein at least one block comprising a vinyl aromatic compound having a glass transition temperature (Tg) of not lower than 50.degree. C., at least one block comprising a conjugated diene polymer having a 1,4-trans linkage content, a Tg not higher than 10.degree. C. and crystallinity at 25.degree. C. and in which the crystalline block copolymer optionally which contains the radial structure further comprises a coupling agent. The polymer or the composition containing the same can be utilized for fixing materials of affected portions for medical purposes, protector materials for various sports, films, laminates, toys, artificial flowers, heat-sensitive sensors, coupling devices, insulating materials, framework materials, etc.

REFERENCES:
patent: 4080492 (1978-03-01), De Zarauz
patent: 4355156 (1982-10-01), Bingham et al.
patent: 4503204 (1985-03-01), Bingham et al.
patent: 4616065 (1986-10-01), Hargis et al.
patent: 4689368 (1987-08-01), Jenkins

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