Polycarbonate from dihydroxydiphenyl cycloalkane

Details Polycarbonate from dihydroxydiphenyl cycloalkane Polycarbonate from dihydroxydiphenyl cycloalkane

1992-03-31

1993-07-13

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

428412, 521180, 528198, 528202, 528204, C08G 6404

Patent

active

052274586

ABSTRACT:
Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,

REFERENCES:
patent: 2069560 (1937-02-01), Rothrock
patent: 2069573 (1937-02-01), Bolton
patent: 2342294 (1944-02-01), Nierderl
patent: 2538725 (1951-01-01), Johnson, Jr. et al.
patent: 2883365 (1959-04-01), Mathes
patent: 4180651 (1979-12-01), Mark
patent: 4371691 (1983-02-01), Friedhofen et al.
patent: 4637971 (1987-01-01), Takei et al.
patent: 5126428 (1992-06-01), Freitag et al.

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