US PATENT SUBCLASS 523 / 425
.~.~.~.~ Polymer derived from silicon reactant

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF {71}
400  DF  .~.~ Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof {24}
402  DF  .~.~.~ Product contains water per se or water of hydration as designated nonreactive material (DNRM) {7}
425.~.~.~.~ Polymer derived from silicon reactant

DEFINITION

Classification: 523/425

Polymer derived from silicon reactant:

(under subclass 402) Subject matter wherein the composition contains a polymer derived from a silicon-containing reactant, e.g., organopolysiloxanes, etc.

(1) Note. A polymer derived from a silicon reactant need not be solid, but if it is a liquid there should be disclosure that it is curable to produce a solid polymer.