US PATENT SUBCLASS 521 / 66
.~.~.~ Treating a latex, dispersions, or emulsion containing a solid polymer at 32 degrees F. or below, e.g., freezing, etc.

Current as of: June, 1999
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521 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {3}
50  DF  .~ CELLULAR PRODUCTS OR PROCESSES OF PREPARING A CELLULAR PRODUCT, E.G., FOAMS, PORES, CHANNELS, ETC. {27}
65  DF  .~.~ Process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof {7}
66.~.~.~ Treating a latex, dispersions, or emulsion containing a solid polymer at 32 degrees F. or below, e.g., freezing, etc.

DEFINITION

Classification: 521/66

Treating a latex, dispersion, or emulsion containing a solid polymer at 32 deg. f. or below, e.g., freezing, etc.:

(under subclass 5) Subject matter wherein a step is included of treating the aqueous latex, aqueous emulsion, or aqueous dispersion at a temperature of 32 deg.F. or below.

(1) Note. Included herein are coagulation or agglomeration by freezing of an aqueous latex, emulsion, or dispersion, or the addition of materials which are at or below 32 deg.F. to an aqueous latex, dispersion, or emulsion.

(2) Note. The treating for purposes of this subclass must integrally involve the aqueous latex, aqueous dispersion, or aqueous emulsion.