Pulp waste liquor-phenolic resin binder

Details Pulp waste liquor-phenolic resin binder Pulp waste liquor-phenolic resin binder

1980-04-04

1982-04-13

Nielsen, Earl A.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By extrusion spraying or gravity fall through orifice

524 74, C08G 828, C08H 502, C08J 312, B01J 202

Patent

active

043247474

ABSTRACT:
Modified phenol-formaldehyde resins, and processes for their preparation, are described wherein board or paper pulping process waste liquor is used as the modifier. The resins may contain, based on solids contents of both resin and waste liquor, from 1:10 to 10:1 parts by weight. These resins are cheaper than conventional resins and also use the waste-liquor without any purification step.

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patent: 3864291 (1975-02-01), Enkvist
patent: 3935139 (1976-01-01), Ashall
patent: 3940352 (1976-02-01), Wennerblom et al.
patent: 4098770 (1978-07-01), Berchem et al.

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