Flame-resistant polycarbonates, containing in their polymeric ch

Details Flame-resistant polycarbonates, containing in their polymeric ch Flame-resistant polycarbonates, containing in their polymeric ch

1988-07-13

1989-11-28

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528199, 528204, C08G 6368

Patent

active

048838560

ABSTRACT:
Thermoplastic, branched, high-molecular weight polycarbonates endowed with properties of flame-resistance (self-extinguishing polycarbonates) are characterized by the presence in their polymeric chain of units deriving from a di-hydroxy-aromatic compound having the formula: ##STR1## wherein: R is a single bond; or is a substituted or non-substituted, linear or branched alkyl group containing from 1 to 5 carbon atoms; or is a group selected from O, S, SO.sub.2, CO;

REFERENCES:
patent: 4426513 (1984-01-01), Mark

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