Polyaromatic ether-keto-sulfones and their synthesis

Details Polyaromatic ether-keto-sulfones and their synthesis Polyaromatic ether-keto-sulfones and their synthesis

1979-06-08

1981-02-24

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528128, 528173, C08G 6540, C08G 7523

Patent

active

042529379

ABSTRACT:
Polymers having pendant phenylethynyl groups are obtained by reacting phenylacetylene with a bromine-containing polymer prepared by reacting bis-p-phenoxy-4,4'-(2,2'-dibromodiphenyl)ketone or 2,2'-dibromodiphenyl-4,4'-dicarbonyldichloride with isophthaloyl dichloride and 4,4'-bis-p-phenoxydiphenylsulfone. Because the polymers cure without the evolution of volatiles and have softening points higher than their cure temperatures, they are especially suitable for use in fabricating fiber-reinforced composites.

REFERENCES:
patent: 3935167 (1976-01-01), Marvel et al.
patent: 3956240 (1976-05-01), Dahl et al.
patent: 4065437 (1977-12-01), Blinne et al.

Affiliated with

Also associated with

Rating

Polyaromatic ether-keto-sulfones and their synthesis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyaromatic ether-keto-sulfones and their synthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyaromatic ether-keto-sulfones and their synthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1410437