Process for the preparation of grafted polymers of .alpha.-subst

Details Process for the preparation of grafted polymers of .alpha.-subst Process for the preparation of grafted polymers of .alpha.-subst

1980-03-26

1981-08-04

Hamrock, William F.

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

Synthetic resins

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

525285, 525296, 525310, 525312, 525366, 525369, C08F 3506, C08F 2712

Patent

active

042823382

ABSTRACT:
A method is disclosed for preparing graft polymers of alpha-substituted-beta-propiolactones, comprising the step of providing anionic sites in an amorphous base polymer and reacting the anionic compound with an alpha-substituted-beta-propiolactone. Critical concentrations of unsaturation in the base polymer and critical quantities of the beta-propiolactone concerned are indicated.

REFERENCES:
patent: 3627837 (1971-12-01), Webb
patent: 3639519 (1972-02-01), Hsieh et al.
patent: 3846387 (1974-11-01), Su
patent: 3884882 (1975-05-01), Caywood
patent: 3897513 (1975-07-01), Sundet
patent: 4029718 (1977-06-01), Sundet
patent: 4031168 (1977-06-01), Sharkey et al.

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