Polycarbonates having sulfur-containing phenolic diols incorpora

Details Polycarbonates having sulfur-containing phenolic diols incorpora Polycarbonates having sulfur-containing phenolic diols incorpora

1980-06-09

1981-12-15

Cockeram, H. S.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528174, 568 33, 568 35, C07C14710, C08G 7520

Patent

active

043060552

ABSTRACT:
Polycarbonate resins are based upon the reaction of an aromatic diol and a carbonic acid derivative. A sulfur containing difunctional phenolic compound represented by the structural formula: ##STR1## wherein R.sub.1 is a lower alkyl having 1 to 4 carbon atoms and "n" equals 0 to 4 and X is S or SO.sub.2 either totally or partially substitutes for said aromatic diol. Polycarbonates prepared in accordance with the invention exhibit good heat distortion characteristics and long term aging properties.

REFERENCES:
patent: 3269986 (1966-08-01), Goldberg
patent: 3419526 (1968-12-01), Schnell et al.
patent: 3729447 (1973-04-01), Haberland et al.
patent: 3770832 (1973-11-01), Leslie et al.
patent: 3809682 (1974-05-01), Studinka et al.
patent: 3912688 (1975-10-01), Schiller et al.
patent: 4043980 (1977-08-01), Baron et al.
Fuson, Reactions of Organic Compounds, John Wiley, New York, (1962), pp. 40-41.
Norman, Principles of Organic Synthesis, Methuen, London, (1968), p. 356.
Noller, Chemistry of Organic Compounds, Saunders, Philadelphia, (1965).
Glutz, Annalen, vol. 147, Mar. 5, 1980, pp. 52-66.

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