Polycarbonates having plasticizers with fugitive activity

Details Polycarbonates having plasticizers with fugitive activity Polycarbonates having plasticizers with fugitive activity

1984-06-20

1985-07-02

Ivy, C. Warren

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524762, 524853, 524854, 526209, 52623823, 526317, C08F 208, C08F 2202, C08F 2006, C08F12006

Patent

active

045269378

ABSTRACT:
A process for polymerizing olefinically unsaturated carboxylic acids containing at least one activated carbon-to-carbon olefinic double bond and at least one carboxyl group in benzene in the presence of block copolymers of propylene oxide and ethylene oxides having molecular weights in the range of greater than about 1600 to about 20,000, resulting in improved yields of carboxyl-containing polymers, such as cross-linked polyacrylic acid as shown by an increase in total solids of the benzene slurry of about 50 percent, the polymers obtained at this higher total solids having increased bulk density.

REFERENCES:
patent: 4487899 (1984-12-01), White

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