Stock material or miscellaneous articles – Three dimension imitation or 'treated' natural product – Flora
Patent
1991-06-21
1993-12-14
Robinson, Ellis P.
Stock material or miscellaneous articles
Three dimension imitation or 'treated' natural product
Flora
428541, 428907, 106 1831, 106 1835, 427393, 427297, 427440, A01N 300
Patent
active
052700836
ABSTRACT:
The invention relates to wood preservation systems which employ impregnating agents comprising halogenated tannin extracts from plant species which are relatively more resistant to fungi, weathering, rotting, insect attack, etc. Materials contained within the tannin extracts are converted to halogenated substances which are absorbed by the wood species to be treated. The halogenated extract materials can be used with or without other treatment agents (e.g., fixatives or metal salts). Bromine is the preferred halogen material, with optimum treatment occurring when the bromine concentration in the extract exceeds about 2% (most preferably, about 4-5%).
REFERENCES:
patent: 1013913 (1912-01-01), Wemer
patent: 1183055 (1916-05-01), Wemer
patent: 4661382 (1987-04-01), Lotz
patent: 4732817 (1988-03-01), Lotz et al.
"The World Book Dictionary" by C. L. Barnhart, vol. Two, L-Z p. 2126.
"Tanning Materials" by A. Harvey, p. 3.
"Vegetable tanning Materials" by F. N. Howes (1953), p. 1.
Webster's Ninth New Collegiate Dictionary, 1990, p. 1205.
Ahmad Nasser
CECCO Trading, Inc.
Robinson Ellis P.
LandOfFree
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