Method for the production of light colored aromatic sulfide/sulf

Details Method for the production of light colored aromatic sulfide/sulf Method for the production of light colored aromatic sulfide/sulf

1990-09-25

1991-11-19

Anderson, Harold D.

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

Synthetic resins

From sulfur-containing reactant

528171, 528174, 528391, C08G 7520

Patent

active

050667742

ABSTRACT:
This invention provides a process to produce aromatic sulfide/sulfone polymers exhibiting high molecular weight, and having a light or "whitish" coloration. This process employs a dihaloaromatic sulfone, a sulfur-containing compound and a 1,3-dialkyl-2-imidazolidinone. These lighter colored polymers are more preferable commercially and may be useful in the production of coatings, films, molded objects, and glass or carbon fiber composites.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds et al.
patent: 3919177 (1975-11-01), Campbell
patent: 4125525 (1978-11-01), Campbell
patent: 4501884 (1985-11-01), Ostlinning et al.
patent: 4774276 (1988-09-01), Bobsein et al.
patent: 4808698 (1989-02-01), Bobsein et al.

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