Binding lignocellulosic materials

Details Binding lignocellulosic materials Binding lignocellulosic materials

1978-04-21

1980-03-18

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Cellulose liberation waste liquor, solid, or reaction...

260124R, C08L 9702

Patent

active

041938143

ABSTRACT:
A method of making a thermosetting binder for lignocellulosic materials, utilizing spent sulfite liquor, and a method of making a particleboard product. Spent sulfite liquor treated with sufficient sulfuric acid to provide a lignosulfonic acid content of not less than 0.8 milliequivalent weight of NaOH per gram of spent sulfite liquor solids, makes it possible to make particleboard with press time and physical properties comparable to phenol or urea formaldehyde bonded boards but at considerably reduced material cost.

REFERENCES:
patent: 2822358 (1958-02-01), Hearon et al.
patent: 3355400 (1967-11-01), Smith et al.

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