US PATENT SUBCLASS 524 / 601
.~.~.~.~ From dicarboxylic acid or derivative and at least one polyol; or from a diester of a polycarboxylic acid as sole reactant

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
599  DF  .~.~.~ From carboxylic acid or derivative reactant {3}
601.~.~.~.~ From dicarboxylic acid or derivative and at least one polyol; or from a diester of a polycarboxylic acid as sole reactant {3}
602  DF  .~.~.~.~.~> Nitrogen-containing reactant
603  DF  .~.~.~.~.~> Reactant contains atom other than C, H, or O
604  DF  .~.~.~.~.~> At least one polyol containing only two -C-OH groups reactant {1}

DEFINITION

Classification: 524/601

From dicarboxylic acid or derivative and at least one polyol; or from a diester of a polycarboxylic acid as sole reactant:

(under subclass 599) Subject matter wherein the solid polymer is derived from a polyol and from a carboxylic acid containing two carboxylic acid groups, or from a derivative containing two carboxylic acid derivative groups, or from a reactant containing a carboxylic acid group and a derivative group; or wherein the solid polymer is derived from a dicarboxylic acid diester as the sole solid polymer-forming reactant.