US PATENT SUBCLASS 528 / 335
.~.~.~ From dicarboxylic acid or derivative thereof and an organic amine, or from an organic amine salt of a dicarboxylic acid


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
332  DF  .~.~ With organic amine, or from organic amine salt of a carboxylic acid {2}
335.~.~.~ From dicarboxylic acid or derivative thereof and an organic amine, or from an organic amine salt of a dicarboxylic acid {13}
336  DF  .~.~.~.~> Polymerizing in the presence of a specified material
337  DF  .~.~.~.~> Phosphorus- or sulfur-containing reactant
338  DF  .~.~.~.~> From at least two dicarboxylic acids or derivatives or mixtures thereof and at least two organic polyamines
339  DF  .~.~.~.~> From at least two dicarboxylic acids or derivatives or mixtures thereof {2}
340  DF  .~.~.~.~> From at least two organic polyamines
341  DF  .~.~.~.~> Heterocyclic-containing reactant other than cyclic acid anhydride as sole hetero ring
342  DF  .~.~.~.~> From reactant containing at least three amino-nitrogen-containing groups or with a carboxylic acid containing at least three carboxylic acid groups or deivatives thereof
343  DF  .~.~.~.~> Carboxylic acid containing (C=O)-(C=O) or is a derivative thereof, e.g., oxalic acid, etc.
344  DF  .~.~.~.~> Bridged- or fused-ring-containing reactant other than as anhydride fused to a nonfused- or bridged-ring system
345  DF  .~.~.~.~> Ethylenically unsaturated reactant
346  DF  .~.~.~.~> Cycloaliphatic ring-containing reactant
347  DF  .~.~.~.~> Aryl ring-containing reactant {1}
349  DF  .~.~.~.~> Reactant contains three carbon atoms directly bonded to a single carbon atom


DEFINITION

Classification: 528/335

(under subclass 332) Subject matter wherein a polymer is derived from a dicarboxylic acid or from a dicarboxylic acid derivative thereof and an organic amine, or wherein a reactant is an organic amine salt of a dicarboxylic acid or derivative.

(1) Note. The reactant may be the monoamine salt of a dicarboxylic acid, the diamine salt thereof, or it may be the diamine or monoamine salt of a dicarboxylic acid derivative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

350+, for polymers derived from a tri or higher carboxylic acid or derivative and a polyamine.