Fire proof treatment solution and fire retardant material...

B - Operations – Transporting – 27 – K

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B27K 3/52 (2006.01)

Patent

CA 2487763

A fire proof treatment solution capable of resolving problems, such as low solubility leading to low concentration and hence low combustion inhibiting effect and water solubility leading to a disadvantage of eluviation, of boron compounds used as a constituent of flame retarding treatment solution. In particular, a fire proof treatment solution produced by adding phosphoric acid and a silane coupling agent to a weak acid or weak alkali aqueous metal salt solution containing a boron compound to thereby obtain a mixed aqueous solution and adding a plant extract composed mainly of a polyphenol compound to the mixed aqueous solution. This fire proof treatment solution can be widely applied to members composed mainly of cellulose, such as wood, paper and natural fibers. This fire proof treatment solution can increase the fixation of chemicals to thereby attain a high combustion inhibiting effect and can minimize the occurrence of eluviation.

L'invention concerne une solution de traitement ignifuge pouvant résoudre des problèmes, tels qu'une faible solubilité cause d'une faible concentration et, en conséquence, d'un faible effet d'inhibition de la combustion; et une faible solubilité de l'eau entraînant un inconvénient d'éluviation de composés de bore utilisés comme un constituant d'une solution de traitement ignifuge. L'invention concerne en particulier une solution de traitement ignifuge produite par adjonction d'acide phosphorique et d'un agent de couplage silane à une solution aqueuse de sel métallique faiblement acide ou faiblement alcaline contenant un composé de bore, dans le but d'obtenir une solution aqueuse mixte; et par adjonction d'un extrait de plante constitué essentiellement d'un composé polyphénolique à ladite solution aqueuse mixte. La solution de traitement ignifuge de l'invention peut s'appliquer, dans une large mesure, à des éléments composés principalement de cellulose, tels que le bois, le papier ou les fibres naturelles. Cette solution de traitement ignifuge peut augmenter la fixation de produits chimiques pour ainsi cconférer un grand effet d'inhibition de la combustion; elle peut également limiter au minimum la survenue de l'éluviation.

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