US PATENT SUBCLASS 525 / 379
.~.~.~.~ Organic amine

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}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
374  DF  .~.~.~ Chemical treating agent is a nitrogen-containing compound {5}
379.~.~.~.~ Organic amine {3}
380  DF  .~.~.~.~.~> Amine contains a hydroxyl group
381  DF  .~.~.~.~.~> Three or more amine groups
382  DF  .~.~.~.~.~> Two amine groups

DEFINITION

Classification: 525/379

Organic amine:

(under subclass 374) Treatment wherein the organic nitrogen compound contains an amine group.

(1) Note. An amine denotes an organic compound having a nitrogen atom singly or double bonded to a carbon atom and

wherein the carbon atom bonded to the nitrogen atom is devoid of a double bond to oxygen, sulfur, selenium, or tellurium or triple bond to nitrogen. In addition, those compounds wherein the same nitrogen atom is bonded to a () group (X is O, S, Se, or Te) and to a carbon atom which is not double-bonded to oxygen, sulfur, selenium, or tellurium, are not considered as being amines (e.g., -C-NH-C(=X)-. Although amides may be considered chemically as amines, it has been found expedient for these classes to exclude compounds containing only amide nitrogen herefrom. Therefore, as used throughout this area, the term amide is not to be confused with an amine. A compound, however, which contains a nitrogen atom bonded to a non carbon atom and which contains either a nitrogen atom bonded to a () group or an amide group, is considered as being an amine, e.g., NH2[end subscrpt]NH-CH2-NH2[end subscrpt], etc.