US PATENT SUBCLASS 528 / 116
.~.~.~.~ Non-1,2-epoxy or nonphenolic reactant contains a heterocyclic ring

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
116.~.~.~.~ Non-1,2-epoxy or nonphenolic reactant contains a heterocyclic ring {2}
117  DF  .~.~.~.~.~> Five-membered heterocyclic ring contains at least one nitrogen atom as a ring member
118  DF  .~.~.~.~.~> Six-membered heterocyclic ring contains at least one nitrogen atom as a ring member

DEFINITION

Classification: 528/116

(under subclass 106) Subject matter wherein the non-1, 2-epoxy or nonphenolic reactant is a heterocyclic ring-containing compound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

112, for a non-1, 2-epoxy or nonphenolic reactant containing a cyclic carboxylic acid anhydride group.

SEE OR SEARCH CLASS

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