Branched polycarbonates containing double-ring aromatic...

Details Branched polycarbonates containing double-ring aromatic... Branched polycarbonates containing double-ring aromatic...

C - Chemistry, Metallurgy

08

G

402/172

C08G 63/02 (2006.01) C08G 64/06 (2006.01) C08G 64/08 (2006.01) C08G 64/14 (2006.01) C08G 64/42 (2006.01)

Patent

CA 1270591

"BRANCHED POLYCARBONATES CONTAINING DOUBLE-RING AROMATIC COMPOUNDS" 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 double-ring aromatic compounds: Image wherein R1 indicates H, -COCl, -SO2Cl; R2, R3 and R4, equal to or different from each other, indicate -COCl or SO2Cl. The above-said compounds are directly used in the syntheses.

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