US PATENT SUBCLASS 525 / 437
.~.~.~.~ Solid polymer derived from polyhydroxy reactant and polycarboxylic acid or derivative reactant; or derived from di- or higher ester of a polycarboxylic acid as sole reactant


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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
418  DF  .~.~ Solid polymer derived from at least one carboxylic acid or derivative {3}
419  DF  .~.~.~ Solid polymer derived from at least one lactam; from an amino carboxylic acid or derivative; or from a polycarboxylic acid or derivative {3}
437.~.~.~.~ Solid polymer derived from polyhydroxy reactant and polycarboxylic acid or derivative reactant; or derived from di- or higher ester of a polycarboxylic acid as sole reactant {9}
438  DF  .~.~.~.~.~> Mixed with reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom
439  DF  .~.~.~.~.~> Mixed with O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom; or wherein solid polymer is derived from a hal-C(=O)-hal, O-C(=O)-O-, or hal-C(=O)-O-, a polycarboxylic acid or derivative and a polyhydroxy reactant
440  DF  .~.~.~.~.~> Mixed with -N=C=X reactant or polymer derived therefrom (X is chalcogen); or wherein solid polymer is derived from a -N=C=X reactant and also a polycarboxylic acid or derivative and a polyhydroxy reactant
441  DF  .~.~.~.~.~> Mixed with aldehyde or aldehyde derivative reactant or polymer derived therefrom {2}
444  DF  .~.~.~.~.~> Mixed with polycarboxylic acid or derivative and polyhydroxy reactant or polymer thereof {1}
445  DF  .~.~.~.~.~> Mixed with ethylenically unsaturated reactant or polymer therefrom
446  DF  .~.~.~.~.~> Mixed with silicon-containing reactant or polymer derived therefrom
447  DF  .~.~.~.~.~> Solid polymer derived from polycarboxylic acid or derivative and a polyhydroxy compound derived from reactant containing ethylenic unsaturation
448  DF  .~.~.~.~.~> Solid polymer derived from polycarboxylic acid or derivative and polyhydroxy compound is derived from two or more polycarboxylic acids or derivatives


DEFINITION

Classification: 525/437

Solid polymer derived from polyhydroxy reactant and polycarboxylic acid or derivative reactant; or derived from di- or higher ester of a polycarboxylic acid as sole reactant:

(under subclass 419) Subject matter wherein the solid polymer is derived from a polyhydroxy reactant and a polycarboxylic acid or derivative reactant; or from a di- or higher ester of a polycarboxylic acid as sole reactant.