US PATENT SUBCLASS 525 / 503
.~.~.~ Mixed with aldehyde or aldehyde-type chemical treating agent

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}
503.~.~.~ Mixed with aldehyde or aldehyde-type chemical treating agent

DEFINITION

Classification: 525/503

Mixed with aldehyde or aldehyde-type chemical treating agent:

(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 an aldehyde-type reactant is mixed with an aldehyde or aldehyde-type treating agent.

(1) Note. This subclass takes, as an example, a mixture of a solid phenol-aldehyde polymer and a chemical treating agent, such as a catalyst, as well as a mixture of a resinifiable phenol-aldehyde intermediate condensate with polymer-forming ingredients (necessary for this subclass).

SEE OR SEARCH CLASS

528, Synthetic Resins or Natural Rubbers,

129+, for a mixture of a specified intermediate condensation product of phenol and an aldehyde with a nonsolid specified treating agent such as an aldehyde-containing material.