Branched polyaryl-sulphone/polycarbonate mixtures and their use

Details Branched polyaryl-sulphone/polycarbonate mixtures and their use Branched polyaryl-sulphone/polycarbonate mixtures and their use

1978-07-25

1979-05-01

DeBenedictis, Thomas

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08L 6900, C08L 8106

Patent

active

041523679

ABSTRACT:
The present invention is concerned with mixtures of branched polyaryl-sulphone and aromatic polycarbonates having Mw in excess of about 60,000. These mixtures are particularly suitable for the production of extruded film although the polycarbonate itself is of too high a molecular weight to be conveniently extruded by itself. These films display superior stress-cracking properties and resistance to unsaturated polyester resins compared to similar blends with lower molecular weight polycarbonates.

REFERENCES:
patent: 3365517 (1968-01-01), Barth
patent: 3631222 (1971-12-01), Vogel et al.
patent: 3647751 (1972-03-01), Darsow et al.
patent: 3652715 (1972-03-01), Holub et al.
patent: 3689464 (1972-09-01), Holub et al.
patent: 3792115 (1974-02-01), Kishikawa et al.
patent: 3960815 (1976-06-01), Darsow et al.

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