US PATENT SUBCLASS 525 / 472
.~.~ Solid polymer derived from aldehyde or aldehyde-type reactant and wherein none of the reactants forming the solid polymer contains a phenol-, amine-, -N=C=X, -N-S(=O)- or ketone group or a condensate thereof except when an amine group appears in hexamethylenetetramine or a derivative thereof (X is chalcogen)

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}
472.~.~ Solid polymer derived from aldehyde or aldehyde-type reactant and wherein none of the reactants forming the solid polymer contains a phenol-, amine-, -N=C=X, -N-S(=O)- or ketone group or a condensate thereof except when an amine group appears in hexamethylenetetramine or a derivative thereof (X is chalcogen) {1}
473  DF  .~.~.~> Solid polymer derived from aldehyde or aldehyde-type reactant containing atoms other than C, H, or O and wherein when hexamethylenetetramine or derivative is a reactant, there is additionally present a reactant containing atoms other than C, H, or O

DEFINITION

Classification: 525/472

Solid polymer derived from aldehyde or aldehyde-type reactant and wherein none of the reactants forming the solid polymer contains a phenol, amine-, -N, -N-, or ketone group or a condensate thereof except when an amine group appears in hexamethylenetetramine or a derivative thereof (X is chalcogen):

(under subclass 50) Subject matter involving processes of mixing a solid polymer derived from an aldehyde or aldehyde-type reactant and wherein none of the reactants forming the solid polymer contains a phenol, amine, ketone group, or is a polymer thereof other than wherein the amine group is hexamethylenetetramine or a derivative thereof, with additional solid polymer, with specified polymer-forming ingredients, with specified intermediate condensation products, with chemical treating agent, or with ethylenic agent; processes of reacting or forming the above mixtures, or products resulting from the above processes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

398, the Notes therein, for a discussion of "aldehyde-type".

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for definitions of the terms "aldehyde" and "aldehyde derivative".