US PATENT SUBCLASS 524 / 839
.~.~.~ Solid polymer or SICP derived from -N=C=X (X is chalcogen) containing reactant

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
800  DF  .~.~ Preparation of intentional or desired composition by formation of solid polymer or SICP in the presence of water as a designated nonreactant material (DNRM), or products thereof {10}
839.~.~.~ Solid polymer or SICP derived from -N=C=X (X is chalcogen) containing reactant {1}
840  DF  .~.~.~.~> N=C=X reactant has ionic group attached thereto, e.g., carboxyl sulfonic, etc.

DEFINITION

Classification: 524/839

Solid polymer or SICP derived from -N=C=X containing reactant:

(under subclass 800) Subject matter wherein there is at least one N=C=X containing reactant in the solid polymer or SICP formed in the presence of water as a DNRM.

(1) Note. X is chalcogen and is limited to oxygen, sulfur, selenium, or tellurium.

(2) Note. Included herein are, e.g., isocyanate reactants, etc.