Bulk process for making maleimide copolymers

Details Bulk process for making maleimide copolymers Bulk process for making maleimide copolymers

1994-10-21

1996-02-06

Jagannathan, Vasu S.

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

Synthetic resins

Polymerizing in two or more physically distinct zones

525 53, 525 73, 525282, C08F 202, C08F22240

Patent

active

054896576

ABSTRACT:
A bulk process is provided for making maleimide copolymers. The process involves reacting a monomer mixture comprising a maleimide monomer compound, a vinyl aromatic compound and a vinyl cyanide compound in a continuous stirred tank reactor, and then further reacting the material in a plug flow reactor to obtain a desired conversion level, and then devolatizing the product. The process provides enhanced oligomer control and enhanced levels of glass transition temperature and other properties. The maleimide copolymer obtained by the process may be further blended with impact modifiers to produce thermoplastic compositions which are useful for making molded articles such as automotive parts for under the hood applications, such as distributor caps.

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