Compositions: coating or plastic – Coating or plastic compositions – Contains fireproofing or biocidal agent
Patent
1997-10-06
2000-09-26
Green, Anthony
Compositions: coating or plastic
Coating or plastic compositions
Contains fireproofing or biocidal agent
106 1821, 106 1822, 106 1832, 106 1833, 252607, 516 20, 516 31, 516 53, 516 59, 516 67, 516198, 516200, 516201, 516203, 516922, 516923, 516DIG1, 516DIG3, 516DIG7, C09D 500, B05D 706
Patent
active
06123754&
ABSTRACT:
The invention relates to a wood-impregnating agent, which is an emulsion, dispersion or solution of a cationic, quaternary, amphoteric and/or special non-ionic surfactant, the surfactant or surfactants being poorly soluble in water and the dispersion or emulsion having a mean particle size diameter or a mean droplet size diameter smaller than 1 .mu.m. Preferable surfactants include cationic and/or quaternary surfactants or compounds from the group of imidazolines, benzyls, alkyls, dialkyls, monoalkyl-trimethyl, dialkyl-dimethyl, methyl-dialkoxy-alkyl, dialkylmethylbenzyl, diamidoamine and/or cationic and/or quaternary surfactants or compounds from the group of complex diquaternary compounds and/or the group of compounds which assume a cationic character in acid medium and/or non-ionic compounds from the group of fatty amine oxides, amine ethoxylate, and/or adducts of an ethylene oxide, which can be protonated on an heteroatom and/or amphoteric compounds from the group of betaines and/or ampholytes. For the use of the impregnating agent the boards to be impregnated are first placed in a steel container and secured against floating, then the container together with its contents are evacuated and left with a vacuum of 80 to 95% for 10 to 25 minutes. Afterwards the impregnation liquor is introduced into the container while destroying the vacuum and the wood kept in it for 1 to 6 hours. Thereafter first the impregnation liquid and then the wood is removed from the container.
REFERENCES:
patent: 4496613 (1985-01-01), Zagefka et al.
patent: 4532161 (1985-07-01), Collins et al.
patent: 5098472 (1992-03-01), Watkins et al.
JAPIO Patent Abstract No. JP402252503A, abstract of Japanese Patent Specification No. 02-252503. (Oct. 1990).
Green Anthony
J. S. Staedtler GmbH & Co.
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