US PATENT SUBCLASS 525 / 66
.~.~.~.~.~ With solid polymer derived from at least one nitrogen-containing reactant wherein at least one of the reactants forming the solid polymer is saturated; or with SPFI wherein at least one of the necessary ingredients contains a nitrogen atom or with a reaction product thereof; or with nitrogen-containing SICP

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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}
63  DF  .~.~.~ Mixing of solid graft or graft-type copolymer with other solid polymer wherein one of said solid polymers is not derived from ethylenic reactants only; mixing of said polymer mixture with a chemical treating agent; or mixing of graft or graft-type copolymer with a SICP or SPFI; or processes of forming or reacting; or the resultant product of any of the above operations {2}
64  DF  .~.~.~.~ Solid graft or graft-type copolymer derived from ethylenic reactants only {4}
66.~.~.~.~.~ With solid polymer derived from at least one nitrogen-containing reactant wherein at least one of the reactants forming the solid polymer is saturated; or with SPFI wherein at least one of the necessary ingredients contains a nitrogen atom or with a reaction product thereof; or with nitrogen-containing SICP

DEFINITION

Classification: 525/66

With solid polymer derived from at least one nitrogen-containing reactant wherein at least one of the reactants forming the solid polymer is saturated; or with specified polymer-forming ingredients wherein at least one of the necessary ingredients contains a nitrogen atom or with a reaction product thereof; or with nitrogen-containing specified intermediate condensation product:

(under subclass 64) Subject matter wherein, in addition to the solid graft or graft-type copolymer derived from ethylenic reactants only, there is also present (a) a reactant or a solid copolymer derived from a nitrogen-containing reactant and wherein at least one of the reactants forming the solid copolymer is saturated, or (b) specified polymer-forming ingredients wherein at least one of the necessary polymer-forming ingredients contains a nitrogen atom and at least one of the necessary polymer-forming ingredients is saturated or a reaction product or condensate thereof, e.g., a mixture of butadiene-styrene-acrylonitrile graft copolymer admixed with nylon 6, etc.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for the definition of the term "specified polymer-forming ingredients".