US PATENT SUBCLASS 525 / 93
.~.~.~.~ Mixture contains solid polymer derived from reactant containing chalcogen

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}
88  DF  .~.~.~ Mixing of solid block or block-type copolymer with other solid polymer; mixing of said polymer mixture with a chemical treating agent; mixing of a block or block-type copolymer with SICP or with SPFI; or processes of forming or reacting; or the resultant product of any of the above operations {5}
93.~.~.~.~ Mixture contains solid polymer derived from reactant containing chalcogen {1}
94  DF  .~.~.~.~.~> Solid block or block-type copolymer derived from reactant containing carboxylic acid ester group

DEFINITION

Classification: 525/93

Mixture contains solid polymer derived from reactant containing chalcogen:

(under subclass 88) Subject matter wherein the solid polymer is derived from or has been reacted with an ethylenic reactant containing a chalcogen atom (O, S, Sc, and Te) (e.g., acrylic acid, etc.)

(1) Note. In this subclass and its indent(s), "solid polymer" is generic and is meant to include an ethylenic block, block-type, or nonblock polymer.