Aromatic sulfoxy compositions and method for their preparation

Details Aromatic sulfoxy compositions and method for their preparation Aromatic sulfoxy compositions and method for their preparation

1984-12-20

1986-11-25

Phynes, Lucille M.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528352, C08G 7310, C08G 7530

Patent

active

046250131

ABSTRACT:
Aromatic sulfoxy tetracarboxylic acids, and their derivatives such as dianhydrides, bisimides and polyimides, are prepared by oxidizing the corresponding sulfides under relatively mild conditions, using oxidizing agents such as nitric acid, N-chlorosuccinimide, potassium persulfate and hydrogen peroxide. The polyimides may also be prepared by the reaction of the dianhydrides or certain bisimides with diamines.

REFERENCES:
patent: 3022320 (1962-02-01), Bennett et al.
patent: 3529017 (1970-09-01), Izard et al.
patent: 3622525 (1971-11-01), Miller
patent: 3812159 (1974-05-01), Lubowitz
patent: 3878240 (1975-04-01), Kuenzy
patent: 4275240 (1981-06-01), Yamaguchi et al.
patent: 4287366 (1981-09-01), Yamaguchi et al.
patent: 4329496 (1982-05-01), Webb

Affiliated with

Also associated with

Rating

Aromatic sulfoxy compositions and method for their preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aromatic sulfoxy compositions and method for their preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aromatic sulfoxy compositions and method for their preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1159190