Lignin-based composition board binder comprising a copolymer of

Details Lignin-based composition board binder comprising a copolymer of Lignin-based composition board binder comprising a copolymer of

1977-06-30

1978-12-19

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

156331, 428526, C08L 9700

Patent

active

041305159

ABSTRACT:
A lignin-based resin binder for use in the manufacture of composition board is produced by the in situ copolymerization of a major portion of a lignosulfonate salt with melamine and formaldehyde. This resin binder employs lignosulfonate levels up to about 70 percent without any of the deleterious effects normally associated with lignin-based resin systems. The resulting binder is completely compatible with conventional composition board processes and produces a board with superior stability under adverse conditions involving high humidity and temperature over a board produced with a standard typical urea-formaldehyde resin as presently in use.

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Shen, Forest Products Journal, vol. 24, No. 2, 1974, pp. 38-44.

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