US PATENT SUBCLASS 528 / 403
.~ FROM HETEROCYCLIC REACTANT CONTAINING AS RING ATOMS OXYGEN, SELENIUM OR TELLURIUM, E.G., EPOXY, ETC.

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}
403.~ FROM HETEROCYCLIC REACTANT CONTAINING AS RING ATOMS OXYGEN, SELENIUM OR TELLURIUM, E.G., EPOXY, ETC. {7}
405  DF  .~.~> With reactant which is devoid of a heterocyclic ring containing oxygen, selenium or tellurium atoms as ring members {1}
408  DF  .~.~> Polymerizing in the presence of a specified material other than a reactant {1}
417  DF  .~.~> Reactant contains a single hetero-atom in a ring and at least three carbon atoms, e.g., oxetane, etc.
418  DF  .~.~> Reactant contains two or more rings each of said rings having a single oxygen and two carbon atoms
419  DF  .~.~> Two or more heterocyclic reactants containing rings of one oxygen and two carbon atoms
420  DF  .~.~> Reactant has a three-membered ring of oxygen and two carbon and contains a nitrogen atom
421  DF  .~.~> Reactant has a three-membered ring containing oxygen and two carbon atoms, i.e., 1,2-epoxy

DEFINITION

Classification: 528/403

(under subclass 1) Subject matter under Class 520, ... involving polymers derived from a heterocyclic reactant having at least one oxygen, selenium, or tellurium atom as a ring member or process of polymerizing; polymerizable compositions containing as a reactant a heterocyclic compound having as a ring member at least one atom of oxygen,

selenium, or tellurium and processes of preparing.

(1) Note. This subclass includes those compounds which may contain at least one atom of oxygen, selenium, or tellurium together in a heterocyclic ring with nitrogen (e.g., oxazolines, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

230+, for a polymer derived from trioxane, tetraoxane, or hexamethylenetetramine.

377+, for a polymer derived from a heterocyclic reactant containing at least one sulfur atom as a ring member.

422, for a polymer derived from a heterocyclic reactant containing only nitrogen and carbon as ring atoms. 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

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "heterocyclic".

526, Synthetic Resins or Natural Rubbers,

260, for polymers derived from only ethylenic monomers and wherein at least one ethylenic monomer contains a five-membered heterocyclic ring and at least one of the ring members is nitrogen and at least one is a oxygen, and subclasses 266+ for polymers derived from only ethylenic monomers and wherein at least one ethylenic monomer has a heterocyclic ring containing at least one oxygen atom as a ring member.