US PATENT SUBCLASS 525 / 328.4
.~.~.~.~.~ Monomer containing two or more nitrogen atoms, or two or more nitrogen containing monomers

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}
326.1  DF  .~.~.~ Chemically after treated solid polymers derived from ethylenically unsaturated monomers only {24}
328.2  DF  .~.~.~.~ Polymer derived from monomer containing nitrogen other than: unsubstituted ammonium, acrylonitrile, acrylamide, methylolacrylamide and the corresponding methacryl materials {2}
328.4.~.~.~.~.~ Monomer containing two or more nitrogen atoms, or two or more nitrogen containing monomers

DEFINITION

Classification: 525/328.4

Monomer containing two or more nitrogen atoms, or two or more nitrogen containing monomers:

(under subclass 328.2) Product wherein a monomer contains two or more nitrogen atoms; or wherein there are two or more nitrogen containing monomers.

(1) Note. The additional nitrogen containing monomer can be any ethylenic monomer which contains nitrogen, including those excluded from subclass 328.2.