US PATENT SUBCLASS 528 / 245
.~.~ From glyoxal or compound having two or more -C(=O)-H groups per se

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}
245.~.~ From glyoxal or compound having two or more -C(=O)-H groups per se

DEFINITION

Classification: 528/245

(under subclass 230) Subject matter wherein at least one aldehyde is glyoxal or a compound containing two or more aldehyde groups.