US PATENT SUBCLASS 524 / 587-- .~.~.~.~.~.~ High density polymer

US PATENT SUBCLASS 524 / 587
.~.~.~.~.~.~ High density polymer

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

*	DD	SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*	DD	.~ 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 (Class 523, subclass 1) {17}
1	DF	.~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
543	DF	.~.~.~ Polymer derived from ethylenic reactants only {11}
570	DF	.~.~.~.~ From hydrocarbon monomer {7}
585	DF	.~.~.~.~.~ From ethylene as sole reactant monomer {2}
587		.~.~.~.~.~.~ High density polymer

DEFINITION

Classification: 524/587

High density polymer:

Subject matter under sublcass 585 wherein the density of the formed polyethylene polymer is more than 0.935.

(1) Note. The term density refers to density as measured by ASTMD 1505 or specific gravity and is not to be confused with terms such as "apparent density" or "bulk density".

(2) Note. In the absence of a specific disclosure of density, all polymers produced by a free radical-yielding catalyst, e.g., peroxy, azo, or redox, etc., are presumed to be low density and are excluded herefrom.