Copolymers of vinyl dioxolanes and maleimides

Details Copolymers of vinyl dioxolanes and maleimides Copolymers of vinyl dioxolanes and maleimides

1994-01-24

1994-08-16

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526213, 5262196, 526227, 526262, 526270, C08F 206, C08F 404, C08F 434, C08F22240, C08F22400

Patent

active

053388135

ABSTRACT:
Copolymers are produced when a 4-vinyl-1,3-dioxolane monomer is copolymerized with an imidized maleic anhydride (for example, maleimide) monomer in the presence of a free radical initiator. Alternatively, a maleamic acid or maleimide functionality may be introduced into a copolymer containing a 4-vinyl-1,3-dioxolane and maleic anhydride by introducing a primary amine into the reaction mixture. Also, the dioxolane reactant may be introduced into the polymer by reacting 3,4-epoxy-1-butene in a ketone reaction solvent. The structure and composition of the product copolymer are controlled by both the sequence and conditions of the reaction. Products of this invention can be cast as clear films and can also be used as reactive polymers.

REFERENCES:
patent: 5019635 (1991-05-01), Blevins et al.

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