US PATENT SUBCLASS 525 / 482
.~.~.~.~ Phenolic-aldehyde or phenolic-aldehyde-type reaction product modified with 1,2-monoepoxide prior to mixing with reactant containing more than one 1,2 epoxy group per mole or polymer derived therefrom


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}
480  DF  .~.~ Solid polymer or specified intermediate condensation product derived from at least one phenolic reactant and at least one aldehyde or aldehyde-type reactant or polymer therefrom {10}
481  DF  .~.~.~ Mixed with reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom {6}
482.~.~.~.~ Phenolic-aldehyde or phenolic-aldehyde-type reaction product modified with 1,2-monoepoxide prior to mixing with reactant containing more than one 1,2 epoxy group per mole or polymer derived therefrom {2}
483  DF  .~.~.~.~.~> Contains sulfur-containing reactant or polymer therefrom
484  DF  .~.~.~.~.~> Contains nitrogen reactant or polymer therefrom


DEFINITION

Classification: 525/482

Phenolic-aldehyde or phenolic-aldehyde-type reaction product modified with 1,2-monoepoxide prior to mixing with reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom:

(under subclass 481) Subject matter wherein the solid polymer or specified intermediate condensation product derived from at least one phenolic reactant and at least one aldehyde or aldehyde-type reactant or polymer therefrom, is modified by reaction with a 1,2-monoepoxide prior to mixing said material with a reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom.