US PATENT SUBCLASS 252 / 182.13
.~.~ For subsequent solid polymer treatment or preparation; e.g., crosslinking, grafting, curing, hardening, vulcanizing, etc.

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

182.11  DF  COMPOSITIONS CONTAINING A SINGLE CHEMICAL REACTANT OR PLURAL NONINTERACTIVE CHEMICAL REACTANTS; I.E., NOT VIS-A-VIS {2}
182.12  DF  .~ Organic reactant {4}
182.13.~.~ For subsequent solid polymer treatment or preparation; e.g., crosslinking, grafting, curing, hardening, vulcanizing, etc. {4}
182.14  DF  .~.~.~> Reactant contains element other than C, H, O, or N {2}
182.18  DF  .~.~.~> Reactant contains ethylenic group {1}
182.2  DF  .~.~.~> Reactant contains isocyante (-N=C=O) or blocked isocyanate group {1}
182.23  DF  .~.~.~> Reactant contains oxygen {2}

DEFINITION

Classification: 252/182.13

For subsequent solid polymer treatment or preparation; e.g., crosslinking, grafting, curing, hardening, vulcanizing, etc.:

(under subclass 182.12) Subject matter designed for subsequent use in polymerization processes and other polymer treating processes, e.g., crosslinking, grafting, blocking, curing, hardening, vulcanizing, etc.

(1) Note. The term "subsequent" means that the claimed composition will be used in one of the above stated processes directly, immediately or in the very near future, and not remotely. Thus, for example, a composition which contains a glycol which is to be subsequently transformed into a liquid polyester is not classified in this subclass. The subsequent esterification will not lead to a solid polymer but merely the preparation of a compound by definition. So, too, a composition designed for subsequent preparation of cyclic trimmers for tetrameres, etc, which, by disclosure are compounds, are also excluded from this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

182.12, for a composition containing a glycol which is to be subsequenly transformed into a liquid polyester.