Method of preparing polyesters modified with trihydroxybenzophen

Details Method of preparing polyesters modified with trihydroxybenzophen Method of preparing polyesters modified with trihydroxybenzophen

1980-11-28

1982-10-12

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, C08G 6366

Patent

active

043540163

ABSTRACT:
UV stable linear polyesters, e.g. polyethylene terephthalate, contain in their chain copolymerized 2-hydroxy-di(hydroxyalkoxy)benzophenone. The polyesters are useful for making biaxially oriented films. The polyesters can be made by polycondensation in the presence of 2,4,4'-trihydroxybenzophenone.

REFERENCES:
patent: 3308095 (1967-03-01), Maerov
patent: 3391110 (1968-07-01), Coleman
patent: 3518175 (1970-06-01), Bell
patent: 3577211 (1971-05-01), Wilson
patent: 4232143 (1980-11-01), Irwin
patent: 4284756 (1981-08-01), Horner
patent: 4288631 (1981-09-01), Ching
Chem. Abst. 83 165233e, (1975).
Chem. Abst. 78 160979q, (1973).
Chem. Abst. 79 548076, (1973).

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