MOLDED POLYMERIC COMPOSITION Russian patent published in 1995 - IPC

FIELD: building industry. SUBSTANCE: the composition comprises (wt %): 10-14 carbamido or a phenol formaldehyde binder and a filler, the balance. The filler comprises 43-45 wt % wood chip and 43-45 wt % wood fiber. The specimens are pressed at 168-175 C 6 MPa and 0.5-0.8 mm of the article thickness. The properties of the specimens: the density 600-800 kg/m³; the ultimate bending strength 10-60 MPa; the swelling 10-15%. EFFECT: improved properties of the binder. 2 tbl