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

1989-06-06

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

525 50, 525 55, 428407, 428422, 428521, 427180, 427213, 427222, 137 13, B05D 508

Patent

active

048372498

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: 3736288 (1973-05-01), Stratta et al.
patent: 4340076 (1982-07-01), Weitzen
patent: 4345013 (1982-08-01), Diamond et al.
patent: 4584244 (1986-04-01), Fenton
patent: 4720397 (1988-01-01), O'Mara et al.
"What to Expect From and How to Handle Commercially Available Drag-Reducing Agents", Oil and Gas Journal, Mar. 11, 1985, pp. 116-120.

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