Rapid dissolving polymer compositions and uses therefor

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

C - Chemistry, Metallurgy

08

K

44/15, 31/66, 11

C08K 3/34 (2006.01) C02F 1/68 (2006.01) C08J 3/11 (2006.01) C08J 3/12 (2006.01) C09K 3/00 (2006.01) C09K 3/32 (2006.01) C10L 1/12 (2006.01) C10L 1/14 (2006.01) C10L 1/16 (2006.01) C10L 1/20 (2006.01) E21B 43/22 (2006.01)

Patent

CA 1315160

36 ABSTRACT OF THE DISCLOSURE 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.

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