Polycarbonate from cycloalkylidene tetra alkyl substituted diphe

Details Polycarbonate from cycloalkylidene tetra alkyl substituted diphe Polycarbonate from cycloalkylidene tetra alkyl substituted diphe

1984-06-14

1985-11-19

Anderson, Harold D.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524157, 525439, 525444, 525463, 528176, 528193, 528194, 528196, 528204, 568716, C08G 6362

Patent

active

045543097

ABSTRACT:
Thermoplastic polymer exhibiting improved heat resistance comprised of the polymerized reaction products of (i) a carbonate precursor, and (ii) at least one dihydric phenol represented by the general formula ##STR1## wherein: R is independently selected from alkyl radicals;

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patent: 4304899 (1981-12-01), Mark et al.
patent: 4310652 (1982-01-01), DeBona et al.

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