Wood preservative composition and use thereof

Details Wood preservative composition and use thereof Wood preservative composition and use thereof

1987-09-15

1988-08-30

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

106 1832, 106 1835, 106 1412, 424128, 424140, 424151, 424160, 427297, 427440, 428541, C09D 514, B05D 706, B27K 332, A01N 5926

Patent

active

047674580

ABSTRACT:
A wood preservative based on leaching-resistant, inorganic compounds for protection of wood and wood materials against wood-damaging insects and fungi, including wood-rot fungi, is disclosed. The wood preservative, which is fixed without chromium, contains as active ingredient in an aqueous solution which is stable on impregnation, (a) a Cu(II), Zn, Ni, Co, Fe, Mg and/or Mn salt of monofluorophosphoric acid, or (b) an alkali metal salt and/or ammonium salt of monofluorophosphoric acid, in the presence of a Zn, Ni, Co, Fe, Mg and/or Mn salt of hydrochloric, nitric or sulfuric acid and, optionally in addition to (a) or (b), one or more members of the group comprising NH.sub.3, HCl, HNO.sub.3, H.sub.2 SO.sub.4, HF, alkali metal hydrogen fluoride and ammonium hydrogen fluoride. Alternately, the composition contains (c) an alkali metal salt and/or ammonium salt of monofluorophosphoric acid in the presence of a Cu(II) salt of hydrochloric, nitric or sulfuric acid in a Cu.sup.2+ :PO.sub.3 F.sup.2- ratio of from about 0.5 to 2:1, preferably about 1:1, and, in addition, ammonia, hydrochloric acid, nitric acid, sulfuric acid or hydrofluoric acid, or alkali metal hydrogen fluoride or ammonium hydrogen fluoride.

REFERENCES:
patent: 3247059 (1966-04-01), Bauer
patent: 3769387 (1973-10-01), Wiesboeck et al.
patent: 4132572 (1979-01-01), Parant et al.
patent: 4613450 (1986-09-01), Moran et al.
Prof. Dr. Ernst Bartholome et al., "Ullmann Encyclopedia of Industrial Chemistry", Wood Protection, 4th Edition, vol. 12, pp. 685-687, Weinheim 1976.

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