Modification of polymeric amine salts

Details Modification of polymeric amine salts Modification of polymeric amine salts

1984-02-13

1985-07-30

Lipman, Bernard

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

Synthetic resins

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

5253268, 5253282, C08F 808

Patent

active

045323046

ABSTRACT:
A process for modifying polymeric amine salts containing a halide ion by admixing with an epoxide to form a volatile halo-hydrin. By adjusting the amount of epoxide employed, the polymeric amine salt can be selectively modified by neutralization wherein partial or total conversion of the halide ion to a halo-hydrin is formed and by hydroxylation wherein the free amine sites formed from the conversion of the halide ion to a halo-hydrin are further reacted with excess epoxide to form a hydroxyl containing graft. The halo-hydrin is volatile and, therefore can be removed by distillation from the modified polymeric amine.

REFERENCES:
patent: 3640909 (1972-02-01), Jones et al.
patent: 4129528 (1978-12-01), Petrovich et al.

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