Hydroxy terminated polycarbonates

Details Hydroxy terminated polycarbonates Hydroxy terminated polycarbonates

1987-12-04

1989-03-21

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525394, 525433, 525439, 525462, 525537, 528202, 528204, C08G 6362

Patent

active

048144215

ABSTRACT:
A method for the preparation of polycarbonate resins bearing terminal hydroxy ester groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula: ##STR1## wherein R represents alkylene of 1 to about 12 carbons. The novel product resins are useful as intermediate in the preparation of copolymers with, for example, polyesteramides.

REFERENCES:
patent: 4269964 (1981-05-01), Freitag et al.
patent: 4487917 (1984-12-01), Mark

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