US PATENT SUBCLASS 525 / 246-- .~.~.~.~.~.~ In presence of water

US PATENT SUBCLASS 525 / 246
.~.~.~.~.~.~ In presence of water

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

*	DD	SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50	DF	.~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
55	DF	.~.~ At least one solid polymer derived from ethylenic reactants only {25}
242	DF	.~.~.~ Polymer derived from ethylenic reactants only mixed with ethylenic reactant {21}
244	DF	.~.~.~.~ Contacting a solid polymer derived from ethylenic reactants only with an ethylenic reactant in the presence of a specified material {14}
245	DF	.~.~.~.~.~ Specified material contains transition metal atom {2}
246		.~.~.~.~.~.~ In presence of water

DEFINITION

Classification: 525/246

In presence of water:

(under subclass 245) Subject matter wherein a transition metal atom, water, and an ethylenic reactant are simultaneously in contact with a solid polymer from ethylenic reactant only.

(1) Note. The amount of water present during the polymerization process is of no significance (e.g., diluent, catalyst, activator, etc.). The introduction of water may not be explicitly stated but only implied, e.g., the introduction of 37% formalin solution and 37% commercial hydrochloric acid. Nevertheless, these materials are generally recognized as containing water.