US PATENT SUBCLASS 530 / 502
.~ Compound which includes phenolic hydroxy or oxygen containing hetero ring reacted with a lignin or lignin containing substance, or product thereof

Current as of: June, 1999
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530 /   HD   CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF

500  DF  LIGNINS OR DERIVATIVES {7}
502.~ Compound which includes phenolic hydroxy or oxygen containing hetero ring reacted with a lignin or lignin containing substance, or product thereof

DEFINITION

Classification: 530/502

(under subclass 500) Processes wherein a lignin or a lignin-containing substance is reacted with a compound having hydroxy bonded directly to a benzene ring or with a compound having an oxygen-containing hereto ring, or the reaction products thereof.