Selectively sulfonated block copolymers/extender oils

Details Selectively sulfonated block copolymers/extender oils Selectively sulfonated block copolymers/extender oils

1995-10-10

1996-05-14

Bleutoe, John C.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524529, C08J 318, C08L 2504

Patent

active

055168310

ABSTRACT:
Blends of a sulfonated thermoplastic block polymer and a compatible extender oil are described. The block copolymer is first selectively hydrogenated and thereafter modified by grafting sulfonic acid containing functional groups primarily in the alkenyl arene blocks. Neutralization of the acid groups to a metal salt is preferred to prepare oil extended blends that retain substantial amounts of non-extended mechanical properties.

REFERENCES:
patent: 3485787 (1969-12-01), Haetele et al.
patent: 3577357 (1971-05-01), Winkler
patent: 3827999 (1974-08-01), Crossland
patent: 3830767 (1974-08-01), Condon
patent: 4086171 (1978-04-01), Wood et al.
patent: 4417029 (1983-11-01), Milkovich
patent: 5002997 (1991-03-01), Gelles et al.

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