摘要:
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.
摘要:
This invention relates to a leach-resistant borate preservative for lignocellulosic-based products, providing resistance against insect and fungal attack for use in exterior and ground contact applications. The preservative compositions of this invention may be provided as a high strength liquid concentrate, suitable for transportation, storage and easy on-site dilution, or as a ready-to-use treatment solution. These wood preservative compositions include a borate preservative component and a co-biocidal metal fixative such as copper or zinc. The preservative compositions also contain volatile organic acid, free ammonia and ammonium salts to aid dissolution. Methods for the application of these preservative compositions to wood are also provided.
摘要:
Soluble copper(I)-amine complexes, particularly copper(I)-ammonia complexes and copper(I)-monoethanmolamine complexes, are useful injectable wood preservatives. Wood treated with the copper(I)-amine complexes contains less amines, and is less corrosive to metals, than woods treated with the prior art copper(II)-amine complexes. A method of preparing an aqueous wood preservative that includes soluble copper(I) complexes comprises reacting a solution comprising a copper(II)-amine complex with metallic copper to form a copper(I)-amine complex. One aspect of the invention comprises injecting a solution comprising a copper(I)-amine complex into wood and allowing the copper(I)-amine complex to precipitate within the wood.
摘要:
This invention comprises wood preservative compositions based on alkaline copper quaternary formulations having reduced corrosivity to metals by addition of a soluble nitrite salt and a dicarboxylic acid and methods for their use in reducing corrosivity of metals.
摘要:
The invention relates to a wood treatment solution which does not contain heavy metals and which contains an impregnation agent that is an alkali metal salt or alkaline-earth metal salt of formic acid or propionic acid. The invention also relates to a process for treating wood in order to improve its preservation, in which process wood is treated with the said wood treatment solution.
摘要:
The present invention relates to wood which contains a sorbic acid store and to processes for producing the sorbic acid store in the wood or on the surface of the wood. The present invention also relates to a process for using sorbic acid and its salts for protecting wood from microbially induced degradation.
摘要:
The present invention concerns a composition intended for the protection of a solid substrate against environmental attack. The composition includes at least one biocidal component and a hydrophobing agent. The composition is in the liquid phase, and the liquid is a common solvent for the hydrophobing agent and the biocidal component(s).
摘要:
The present invention relates to compositions and their methods of manufacture and use which are effective for delivering a homogeneous distribution of a boron containing active ingredient to a tree or tree derived substrate for the purpose of preventing or eradicating an infestation and/or for imparting flame retardency thereto.
摘要:
The specification describes preserved solid wood or wood composites including a copper ammonium acetate complex wood preservative and a drying oil. The wood preservative is present in the wood in an amount effective to improve the resistance of the treated wood to at least one type of decomposition, such as decay or insect attack. The drying oil is present in the wood in an effective amount to accomplish at least one useful end, such as reducing the water absorption or thickness swell of the treated wood or increasing its mechanical strength, even in a wood composite made using less binding resin than usual. Yet another aspect of the invention is a method of making the treated wood from green wood in solid or flaked form. A copper ammonium acetate complex wood preservative and optionally a drying oil are added to the green wood.
摘要:
A phosphate and ammonia free composition for treating an object (i.e., lumber, plywood and other wood products) is described. The treating solution may be applied to the object by dipping, soaking, brushing, spraying, etc., however, vacuum and/or pressure techniques may be used to impregnate the object according to the method of this invention, including both the empty-cell process and the full-cell process. The composition achieves fire retardant qualities without object degradation when the treated object is subjected to heat and humidity over time. The composition of this invention includes nitrogen in a predetermined ratio to boron.