Removal of 2-isopropenyl-2-oxazoline monomer

Details Removal of 2-isopropenyl-2-oxazoline monomer Removal of 2-isopropenyl-2-oxazoline monomer

1981-04-15

1982-11-02

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

526260, 528486, 528487, 528490, 548215, 548237, C08F 610

Patent

active

043574645

ABSTRACT:
The level of residual 2-isopropenyl-2-oxazoline monomer in polymers prepared therefrom can be reduced by reaction of the protonated salt of the monomer with a variety of nucleophiles. The products of the reaction with the monomer are much less toxic than the 2-isopropenyl-2-oxazoline and the utility of the polymer is thereby enhanced. The reaction product of 2-isopropenyl-2-oxazoline and H.sub.2 SO.sub.3 is itself novel and useful.

REFERENCES:
patent: 2831858 (1958-04-01), De Benneville et al.
patent: 2897182 (1959-07-01), De Benneville et al.
patent: 3505297 (1970-04-01), Sheetz et al.
patent: 3509235 (1970-04-01), Reimhofer et al.
CA, 68, 70273u.
Advanced Organic Chemistry, Carey and Sundberg, Part A, pp. 206-208 (1977).

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