Modified aromatic polycarbonates

Details Modified aromatic polycarbonates Modified aromatic polycarbonates

1976-06-09

1977-12-20

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08L 6700

Patent

active

040641953

ABSTRACT:
Aromatic polycarbonate resin mixtures consisting essentially of an aromatic carbonate having the repetitive carbonate group ##STR1## and in addition always the ##STR2## RADICAL ATTACHED TO A CARBONATE GROUP AND A MODIFYING MINOR AMOUNT OF A POLYCAPROLACTONE POLYMER HAVING THE FORMULA ##STR3## WHERE N IS GREATER THAN 100 AND LESS THAN 3000, EXHIBIT, AS COMPARED TO THOSE OF AROMATIC POLYCARBONATES ALONE, E.G. IMPROVED MELT STABILITY. The modified polycarbonates are produced by intimately premixing the polycarbonate with minor selected amounts of polycaprolactone.

REFERENCES:
patent: 2914556 (1959-11-01), Hostettler et al.
patent: 2977385 (1961-03-01), Fowler et al.
patent: 3186961 (1965-06-01), Sears
patent: 3892821 (1975-07-01), Koleske et al.

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