US PATENT SUBCLASS 585 / 12
.~.~.~ Plural polymers or copolymer of specified olefins

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

1  DF  PRODUCT BLEND, E.G., COMPOSITION, ETC., OR BLENDING PROCESS PER SE {5}
7  DF  .~ Component of indefinite molecular weight greater than 150 {4}
10  DF  .~.~ Polymer {2}
12.~.~.~ Plural polymers or copolymer of specified olefins

DEFINITION

Classification: 585/12

Plural polymers or copolymer of specified olefins:

(under subclass 10) Subject matter wherein the composition contains two or more different polymers or contains a polymer made by joint polymerization of two or more different, identified olefins.

(1) Note. A patent is not placed in this subclass on the mere basis that the polymer is one made from olefins within a defined range of molecular weight, e.g., "a polymer of C3-5 olefins", etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11, for a blend containing a copolymer derived from an acyclic olefin and an olefin having an aromatic substituent, e.g., ethylene and stilbene, etc.