Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins
Patent
1984-03-30
1985-04-02
Schain, Howard E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
524 16, 524 72, 524 73, 524 74, 524735, 568727, 568762, 527105, C08L 9700, C07C 3728, C08G 828, C08H 504
Patent
active
045088861
ABSTRACT:
A method is described for making adhesive from biomass. A liquefaction oil is prepared from lignin-bearing plant material and a phenolic fraction is extracted therefrom. The phenolic fraction is reacted with formaldehyde to yield a phenol-formaldehyde resin.
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Riemath William F.
Russell Janet A.
Constant Richard E.
Schain Howard E.
Southworth III Robert
The United States of America as represented by the United States
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