Aromatic thermoplastic polyphosphonatocarbonate

Details Aromatic thermoplastic polyphosphonatocarbonate Aromatic thermoplastic polyphosphonatocarbonate

1980-06-18

1982-03-30

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528169, 528196, 528198, 528204, C08G 6362

Patent

active

043225209

ABSTRACT:
Thermoplastic polyphosphonatocarbonate prepared by polycondensing at least one aromatic dihydroxy compound with a diaryl carbonate and a phosphonic acid diaryl ester in the presence of a basic polycondensation catalyst at a temperature of from 80.degree. to 340.degree. and under a pressure of 600 to 0.1 mm Hg in an inert gaseous atmosphere, the molar ratio of diaryl carbonate to phosphonic diaryl ester being from 5:95 to 95:5 and the molar ratio of aromatic dihydroxy compound to the sum of diaryl carbonate and phosphonic acid diaryl ester being from 0.91:1 to 0.99:1, and following polycondensation, neutralizing said basic catalyst.

REFERENCES:
patent: 2682522 (1954-06-01), Coover, Jr. et al.
patent: 3378523 (1968-04-01), Caldwell et al.
patent: 3597394 (1971-08-01), Rawlings
patent: 4054552 (1977-10-01), Hoogeboom
patent: 4223104 (1980-09-01), Kim et al.

Affiliated with

Also associated with

Rating

Aromatic thermoplastic polyphosphonatocarbonate 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 thermoplastic polyphosphonatocarbonate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aromatic thermoplastic polyphosphonatocarbonate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-383201