US PATENT SUBCLASS 528 / 499
.~.~ Contacting with water

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
480  DF  .~ TREATING POLYMER CONTAINING MATERIAL OR TREATING A SOLID POLYMER OR A RESINIFIABLE INTERMEDIATE CONDENSATION PRODUCT {14}
499.~.~ Contacting with water {1}
500  DF  .~.~.~> Steam stripping or steam distilling

DEFINITION

Classification: 528/499

(under subclass 480) Processes wherein the polymer or

polymer-containing material is brought into contact with material.

(1) Note. Included herein is contact with water in any of its physical forms.