US PATENT SUBCLASS 528 / 328
.~.~.~ From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc.

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}
271  DF  .~ FROM CARBOXYLIC ACID OR DERIVATIVE THEREOF {10}
310  DF  .~.~ From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid {9}
328.~.~.~ From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc.

DEFINITION

Classification: 528/328

(under subclass 310) Subject matter wherein the amino-carboxylic acid reactant contains a group (n is one or more) or is a carboxylic acid derivative thereof, and wherein the nitrogen atom bonded to the single carbon atom which is bonded to the group may be bonded to any other atom other than to a carbon atom which is double bonded to oxygen, sulfur, selenium, or tellurium or triple bonded to a nitrogen atom.