FIELD: construction. SUBSTANCE: sunflower shell parts are treated with a binder comprising (in % by mass): resin KF-MT 40-70; ammonium chloride 0.5-1.5; latex BS-70/2 27.0-56.6; latex BSMK 0.3-0.6; OP-10 0.9-1.8; trisodium phosphate (20% solution) 0.3-0.6. The carpet is formed and boards pressed at 150 C, 2 MPa, 0.6 min/mm. The content of formaldehyde in the boards comprises 6.4-10.8 mg per 100 g of the board. EFFECT: increased efficiency of the process. 2 tbl
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|
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SU1735328A1 |
