Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1997-07-07
1999-09-28
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528488, 528491, 528498, 528502R, 5253302, 525369, 521 25, 521 38, C08F 612
Patent
active
059590734
ABSTRACT:
A method of forming polymer beads comprising forming an aqueous solution comprising a cross-linkable water soluble polymer and a water-soluble crosslinking agent, adding said solution with mixing to a thixotropic oil gel comprising an oil in which said polymer is insoluble and a silica or silicate, continuing said mixing for a time sufficient and under conditions sufficient to form a water-in-oil dispersion having individual water/polymer droplets dispersed in said thixotropic oil gel, stopping mixing, and when the droplets are in the form of solid beads recovering the beads from the thixotropic oil gel.
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Barlow Darren Eugene
Schlameus Herman Wade
Sigalos John L.
Southwest Research Institute
Teskin Fred
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