US PATENT SUBCLASS 525 / 491
.~.~.~ Mixed with additional aldehyde or aldehyde-type reactants which are part of a SPFI system or polymer thereof

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}
491.~.~.~ Mixed with additional aldehyde or aldehyde-type reactants which are part of a SPFI system or polymer thereof {5}
492  DF  .~.~.~.~> Additional material is a hydrocarbon-aldehyde- or hydrocarbon-aldehyde-type polymer, condensate, or reactants therefrom
493  DF  .~.~.~.~> Additional material is ketone-aldehyde- or ketone-aldehyde-type polymer, condensate, or reactants thereof {1}
495  DF  .~.~.~.~> Additional material is amine-, N-C(=X)-, or N-S(=O)-containing reactant- aldehyde or -aldehyde derivative polymer, condensate, or reactants therefrom (X is chalcogen) {4}
500  DF  .~.~.~.~> Wherein the phenolic-aldehyde- or phenolic-aldehyde-type solid polymer or SICP is derived from a reactant or polymer containing an atom other than C, H, or O
501  DF  .~.~.~.~> Additional phenol-aldehyde- or -aldehyde-type polymer, condensation product or reactants therefrom

DEFINITION

Classification: 525/491

Mixed with additional aldehyde or aldehyde-type reactants which are part of a specified polymer-forming ingredient system or polymer thereof:

(under subclass 480) Subject matter wherein a solid polymer or specified intermediate condensation product derived from at least one phenolic reactant and at least one aldehyde or aldehyde-type reactant is mixed with an additional aldehyde or aldehyde-type polymer, specified intermediate condensation product, or aldehyde or aldehyde-type reactants which are part of a specified polymer-forming ingredient system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

503, for a mixture of a solid polymer derived from a phenolic reactant and an aldehyde or aldehyde-type reactant with an aldehyde treating agent which treating agent is not an aldehyde condensate nor a mixture of specified polymer-forming ingredients, e.g., a mixture of a solid phenol-aldehyde polymer and paraformaldehyde, etc.