US PATENT SUBCLASS 526 / 238.3
.~.~ From natural resin or derivative containing monomer

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}
238.3.~.~ From natural resin or derivative containing monomer

DEFINITION

Classification: 526/238.3

From natural resin or derivative containing monomer:

(under subclass 72) Subject matter wherein at least one ethylenic monomer has chemically bonded thereto a natural resin or derivative thereof; or wherein an ethylenically unsaturated natural resin is copolymerized with an additional ethylenic monomer.

(1) Note. Resin copolymerized with another ethylenic monomer which is not a natural resin or natural resin derivative is classified herein. Also, rosin copolymerized with another ethylenic monomer which is a natural resin having synthetically introduced ethylenic unsaturation is classified herein.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, Lines With Other Classes and Within This Class, section II. B, for a further elaboration of the subject matter relating to natural resin or derivatives thereof.

527, Synthetic Resins or Natural Rubbers,

600+, for synthetic resins derived from natural resins proper for that class.

530, Synthetic Resins or Natural Rubbers,

200+, for nonsolid polymeric or nonpolymeric) reaction products of natural resins or derivatives with unsaturated terpenes and/or unsaturated polycarboxylic acids, halides, or anhydrides.