US PATENT SUBCLASS 526 / 352.2
.~.~.~.~ Low density

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
348  DF  .~.~ From hydrocarbon {6}
352  DF  .~.~.~ From ethylene only {1}
352.2.~.~.~.~ Low density

DEFINITION

Classification: 526/352.2

Low density:

(under subclass 352) Subject matter wherein the density of the formed polymer is less than or equal to 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 proper herein.

CROSS-REFERENCE ART COLLECTIONS

The following subclasses are collections of published disclosure pertaining to various aspects of art relating to synthetic resins which are derived from ethylenic monomers, and which aspects do not form an appropriate base for subclass classification in the classification schedule. Note: SPECIAL CROSS-REFERENCE ART COLLECTIONS: Subclasses (930-940) relate only to the subject matter of subclasses 317.1+ (excluding 318).

(1) Note. Disclosures are placed for value as a search aid and in no instance do they represent the entire extent of the prior art.