US PATENT SUBCLASS 8 / 115.66
.~.~.~.~ Organic reactant contains plural nitrogen atoms nonbonded to each other

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

115.51  DF  CHEMICAL MODIFICATION OF TEXTILES OR FIBERS OR PRODUCTS THEREOF {7}
115.54  DF  .~ Treating textiles or fibers from synthetic resin or natural rubber with chemical reactant {4}
115.56  DF  .~.~ Organic chemical reactant {4}
115.65  DF  .~.~.~ Organic reactant contains nitrogen {2}
115.66.~.~.~.~ Organic reactant contains plural nitrogen atoms nonbonded to each other

DEFINITION

Classification: 8/115.66

Organic reactant contains plural nitrogen atoms nonbonded to each other:

(under subclass 115.65) Subject matter wherein the organic reactant's plural nitrogen atoms are nonbonded to each other, e.g., ethylene diamine tetraacetic acid, urea, etc.

(1) Note. Where a reaction concerns the in situ generation of a primary reactant, e.g., the conversion of an acyl azide (R-C(=O)N=N=N) to an isocyanate (R-N=C=O), classification is based on the primary reactant azide. Where the structure of either the primary or secondary reactant is doubtful or indeterminate, classify accordingly.