US PATENT SUBCLASS 536 / 91
.~.~.~.~.~ Hydroxyalkyl containing

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1.11  DF  .~ Carbohydrates or derivatives {15}
56  DF  .~.~ Cellulose or derivative {4}
84  DF  .~.~.~ Ethers {7}
90  DF  .~.~.~.~ Mixed ethers {1}
91.~.~.~.~.~ Hydroxyalkyl containing

DEFINITION

Classification: 536/91

(under subclass 90) Compounds wherein at least one of the radicals attached via the ether linkage is a hydroxyalkyl radical.