US PATENT SUBCLASS 528 / 370
.~ FROM REACTANT HAVING A HALOGEN ATOM OR OXYGEN SINGLE BONDED TO A CARBONYL GROUP, E.G., HALO-C(=O)-, -O-C(=O)-O, ETC.

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528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
370.~ FROM REACTANT HAVING A HALOGEN ATOM OR OXYGEN SINGLE BONDED TO A CARBONYL GROUP, E.G., HALO-C(=O)-, -O-C(=O)-O, ETC. {2}
371  DF  .~.~> Polymerizing in the presence of a specified material other than a reactant
372  DF  .~.~> Reactant contains a halogen atom directly bonded to a carbon atom of a carbonyl group, i.e., halo-C(=O)-

DEFINITION

Classification: 528/370

(under subclass 1) Subject matter under Class 520, ... involving polymers derived from at least one reactant containing a halo or group or processes of polymerizing; polymerizable compositions containing as a reactant a material having a haloor group or processes of preparing.

(1) Note. Included in this subclass are phosgene, carbonic acid, and carbonic acid esters.

SEE OR SEARCH THIS CLASS, SUBCLASS:

480+, for processes of preparing a polymer not involving a chemical modification of the polymer, by the addition of a material thereto, and for chemically modifying material other than the polymer. Subclasses 480+ also provide for processes of admixing with a broadly claimed nonreactant material.

SEE OR SEARCH CLASS

526, Synthetic Resins or Natural Rubbers, 291+, for a polymer derived from an ethylenically unsaturated halogen containing compound having three or more carbon atoms as sole monomer, or for an interpolymer wherein all of the reactants are ethylenically unsaturated and at least one reactant contains three or more carbon atoms and at least one halogen atom, and subclass 314 for a polymer derived from an ethylenically unsaturated reactant containing a group as sole monomer, or for an interpolymer wherein all of the reactants are ethylenically unsaturated and at least one reactant contains a group.