US PATENT SUBCLASS 528 / 398
.~ FROM PHOSPHORUS-CONTAINING REACTANT

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}
398.~ FROM PHOSPHORUS-CONTAINING REACTANT {2}
399  DF  .~.~> Phosphorus reactant contains a nitrogen atom
400  DF  .~.~> With alcohol or alcoholate reactant

DEFINITION

Classification: 528/398

(under subclass 1) Subject matter under Class 520, ... involving polymers derived from a phosphorus-containing reactant or process of polymerizing; polymerizable compositions containing as a reactant a phosphorus-containing material or processes of preparing.

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480+, for processes of preparing a polymer not involving a chemical modification of the polymer, by the addition of a material thereto, and for chemically modifying material other than the polymer. Subclasses 480+ also provide for processes of admixing with a broadly claimed nonreactant material.

SEE OR SEARCH CLASS

526, Synthetic Resins or Natural Rubbers,

274+, for a polymer derived from a phosphorus-containing ethylenic reactant as sole monomer or for a phosphorus-containing interpolymer wherein all of the reactants used in preparing the polymer are ethylenically unsaturated.