US PATENT SUBCLASS 528 / 367
.~ FROM REACTANT HAVING A NITROGEN ATOM DIRECTLY BONDED TO THE CARBON ATOM OF A CARBONYL GROUP, I.E., N-C(=O)-

Current as of: June, 1999
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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}
367.~ FROM REACTANT HAVING A NITROGEN ATOM DIRECTLY BONDED TO THE CARBON ATOM OF A CARBONYL GROUP, I.E., N-C(=O)- {2}
368  DF  .~.~> Polymerizing in the presence of a specified material other than a reactant
369  DF  .~.~> N-C(=O)-OH containing reactant or ester, salt, anhydride, or acyl halide thereof

DEFINITION

Classification: 528/367

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

(1) Note. Included in this subclass are carbamic acid derivatives and urea.

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,

301, for a polymer derived from an ethylenically unsaturated carbamic acid as sole monomer or for a carbamic acid interpolymer wherein all of the reactants used in preparing the polymer are ethylenically unsaturated, and subclass 302 for a polymer derived from an ethylenically unsaturated urea as sole monomer or for a urea interpolymer wherein all of the reactants used in preparing the polymer are ethylenically unsaturated.