US PATENT SUBCLASS 528 / 121
.~.~.~.~.~ Nitrogen reactant contains at least one amino-nitrogen atom

Current as of: June, 1999
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528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
86  DF  .~ FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE {15}
87  DF  .~.~ From 1,2-epoxy-containing phenolic reactant or with 1,2-epoxy-containing reactant {12}
106  DF  .~.~.~ With at least one nonepoxy or nonphenolic reactant {9}
119  DF  .~.~.~.~ Non-1,2-epoxy or nonphenolic reactant contains one or more nitrogen atoms {2}
121.~.~.~.~.~ Nitrogen reactant contains at least one amino-nitrogen atom {3}
122  DF  .~.~.~.~.~.~> Nitrogen reactant having at least one amino-nitrogen atom contains a cycloaliphatic ring
123  DF  .~.~.~.~.~.~> Nitrogen reactant having at least one amino-nitrogen atom contains three or more nitrogen atoms
124  DF  .~.~.~.~.~.~> Nitrogen reactant having at least one amino-nitrogen atom contains at least one aryl group

DEFINITION

Classification: 528/121

(under subclass 119) Subject matter wherein the nitrogen-containing non-1, 2-epoxy or nonphenolic reactant contains an amino-nitrogen atom.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "amine".