US PATENT SUBCLASS 528 / 244
.~.~ Fluorine- or 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}
230  DF  .~ FROM ALDEHYDE OR DERIVATIVE THEREOF AS REACTANT {12}
244.~.~ Fluorine- or phosphorus-containing reactant

DEFINITION

Classification: 528/244

(under subclass 230) Subject matter wherein at least one reactant contains a fluorine or phosphorus atom.

(1) Note. The fluorine or phosphorus atom may be part of the aldehyde or derivative or may be a material which is reacted with the aldehyde or derivative.