Polycarbonate melt condensation synthesis using a tetraorganopho

Details Polycarbonate melt condensation synthesis using a tetraorganopho Polycarbonate melt condensation synthesis using a tetraorganopho

1994-03-07

1995-05-02

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528196, C08G 6400

Patent

active

054120616

ABSTRACT:
The present invention is directed to a method of making polycarbonates by the melt condensation of diarylcarbonate and dihydric phenol in the presence of a tetraorganophosphonium carboxylate salt, such as tetrabutylphosphonium acetate.

REFERENCES:
patent: 4766184 (1988-08-01), Hefner, Jr.
patent: 5037903 (1991-08-01), Parker
Article-DF Fox, In "Kirk-Othmer Encyclopedia of Chemical Technology", 3rd Ed.; HF Mark, et zl. New York, 1982, vol. 18, pp. 479-494.
Article-Linear Aromatic Polyesters of Carbonic Acid, H. Schnell-Ind. & Eng. Ehcm. 51, 157 (1959) (4 pages).

Affiliated with

Also associated with

Rating

Polycarbonate melt condensation synthesis using a tetraorganopho does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polycarbonate melt condensation synthesis using a tetraorganopho, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polycarbonate melt condensation synthesis using a tetraorganopho will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1138044