Processing of anhydride-containing thermoplastic resins

Details Processing of anhydride-containing thermoplastic resins Processing of anhydride-containing thermoplastic resins

1995-05-18

1997-06-17

Seideck, James J.

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

Synthetic resins

Process of treating scrap or waste product containing solid...

521 405, 521 42, 528272, 528288, 528291, 528306, 264 8, 264 12, 264 13, 264 14, 264 41, 264 451, 264 457, 264 459, 264 54, C08J 1104

Patent

active

056398018

ABSTRACT:
An anhydride-containing thermoplastic resin such as a styrene maleic anhydride copolymer is processed in a vented extruder in the present of a nitrogenous chemical blowing agent to both imidize at least a portion of the anhydride groups and remove volatile residues such as unreacted styrene monomer from the resin.

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Heck et al., "Blowing Agents", Encyclopedia of Polymer Science & Technology vol. 2, pp. 438-443.
Hurnick "Chemical Blowing Agents", Plastic Additives Handbook, 3rd Edition, Chapter 16, pp. 811-832 (1990).
"Update: Blowing Agents", Plastics Compounding pp. 64-72, (1980).

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