Branched polycarbonate derived from single-ring aromatic compoun

Details Branched polycarbonate derived from single-ring aromatic compoun Branched polycarbonate derived from single-ring aromatic compoun

1986-12-17

1988-11-22

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528126, 528128, 528173, 528174, 528176, 528179, 528191, 528196, C08G 6362

Patent

active

047867078

ABSTRACT:
In the present invention disclosed are high-molecular-weight, soluble, thermoplastic branched polycarbonates endowed with improved properties, and suitable to blow-moulding fabrication.
Such polycarbonates are characterized by the presence, in their structure, of units deriving from the following single-ring aromatic compounds: ##STR1## wherein R.sub.1 indicates H, --COCl, --SO.sub.2 Cl; R.sub.2, and R.sub.3, equal to or different from each other, indicate --COCl or SO.sub.2 Cl.
The above-said compounds are directly used in the syntheses.

REFERENCES:
patent: 3262914 (1966-07-01), Goldberg et al.

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