Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1992-09-29
1993-12-28
Kight, II, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 528190, 528194, G08G 6300, G08G 6302
Patent
active
052740692
ABSTRACT:
A polyarylate is formed by reacting a mixture of esters of a dihydric phenol and trisphenol, at least one aromatic dicarboxylic acid, an alkali metal catalyst, an inert diluent having a boiling point of from about 200.degree. C. to about 300.degree. C. Polyarylates of improved shear sensitivity and higher molecular weight can be formed.
REFERENCES:
patent: 3669927 (1972-06-01), Terasaki et al.
patent: 3948856 (1976-04-01), Stackman
patent: 4294956 (1981-10-01), Berger et al.
patent: 4374239 (1983-02-01), Berger et al.
patent: 4394496 (1983-07-01), Schrader
patent: 4533720 (1985-08-01), Yu
patent: 4612360 (1986-09-01), Ort
patent: 4764580 (1988-08-01), Martin et al.
patent: 5004796 (1991-04-01), Vicari et al.
Robert W. Stackman, "Preparation of Aromatic Polyesters of Hindered Phenols by Acid Interchange Polycondensation. 1. Solvent Effects", Ind. Eng. Chem. Prod. Res. Dev., 1981, 20 336-338.
Murphy Mark A.
Vicari Richard
Cassady Donald R.
Ferrell Michael W.
Hoechst Celanese Corporation
Kight, II John
Mosley T.
LandOfFree
Process for preparing improved polyarylates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for preparing improved polyarylates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing improved polyarylates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1543662