Rapid dissolving polymer compositions and uses therefor

Details Rapid dissolving polymer compositions and uses therefor Rapid dissolving polymer compositions and uses therefor

1987-11-16

1989-05-02

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

427180, 427213, 427222, 428403, 428404, 428422, 428521, B32B 910, B32B 2516, B32B 2700

Patent

active

048267287

ABSTRACT:
A particulate, free-flowing and rapid dissolving polymer composition is prepared by comminuting a high molecular weight thermoplastic or viscoelastic polymer at a temperature below its glass transition temperature while maintaining the polymer in an inert environment. A finely divided, solid coating agent is mingled with the comminuted polymer while maintaining the polymer particles in a cold and inert atmosphere. The particles of coating agent form a protective shell around each polymer particle by tumble mixing the components while raising the temperature of the mixture. The polymer composition finds use as a drag reducing agent; as an anti-misting agent; to enhance the efficiency of oil skimming processes and devices; and for the preparation of polymer solutions for other uses.

REFERENCES:
patent: Re28361 (1975-03-01), Hahn
patent: 2879173 (1959-03-01), Yahoe
patent: 4345013 (1982-08-01), Diamond et al.
patent: 4578313 (1986-03-01), Ito et al.
patent: 4584244 (1986-04-01), Fenton

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