US PATENT SUBCLASS 560 / 350
.~.~.~ Isocyanate exchange reactions (i.e., A-NCO + B-X = B-NCO + A-X)

Current as of: June, 1999
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560 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
330  DF  .~ Isocyanate esters (i.e., compounds containing the isocyanate group, -N=C=O, bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {7}
336  DF  .~.~ Processes {6}
350.~.~.~ Isocyanate exchange reactions (i.e., A-NCO + B-X = B-NCO + A-X)

DEFINITION

Classification: 560/350

(under subclass 336) Processes wherein an isocyanate group on one reactant and a different functional group on a second reactant undergo an exchange reaction.

(1) Note. An example of a process provided for herein is: [figure] [figure]