US PATENT SUBCLASS 528 / 4
.~ FROM BORON REACTANT HAVING AT LEAST ONE BORON TO HYDROGEN OR BORON TO CARBON BOND

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}
4.~ FROM BORON REACTANT HAVING AT LEAST ONE BORON TO HYDROGEN OR BORON TO CARBON BOND {4}
5  DF  .~.~> Boron reactant contains a silicon atom
6  DF  .~.~> Boron reactant contains a phosphorus atom
7  DF  .~.~> Boron reactant contains a nitrogen atom
8  DF  .~.~> Boron reactant contains a boron atom bonded to at least one atom of oxygen

DEFINITION

Classification: 528/4

(under subclass 1) Subject matter under Class 520, ... involving polymer products derived from a boron-containing reactant wherein at least one atom of boron is bonded directly to a hydrogen or carbon atom or processes of polymerizing; polymerizable compositions containing as a reactant a compound of boron wherein boron is directly bonded to an atom of hydrogen or carbon or processes of preparing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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 Rubber,

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