FIELD: woodworking industry. SUBSTANCE: foamed polyurethane binder, including a mixture of polyesters, foam stabilizing agent, frothing agent, curing agent at a definite relation of ingredients are applied onto wood particles. Manganese peroxide and dyphenylmethanediisocyanate are used as curing agent. EFFECT: facilitated procedure. 1 tbl
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METHOD OF PRODUCTION OF CHIP WOOD BOARDS | 1991 |
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Authors
Dates
1994-09-15—Published
1991-07-22—Filed