摘要:
Method of delivering compositions to organic substrates, particularly lumber. Method involves heating a target zone of the substrate and then applying the composition to the surface of the substrate wherein the temperature of the composition is lower than that of the target zone of the substrate. Compositions include biocidal, strength modifiers, waterproofing and polymers.
摘要:
A method of protecting wood through enhanced penetration of wood preservatives includes providing a solution including (a) at least one amine oxide, (b) at least one organic wood preservative and (c) a non-borate buffering based agent. The solution has a pH of 5 to 12.4 and preferably about 7 to 10. The solution is applied to the surface of the wood after which, with or without intervening storage, the materials are activated to effect enhanced penetration of the organic wood preservative into the wood. One may effect application at a solution temperature of about 30° C. to 75° C. and preferably about 50° C. to 60° C. to effect activation at a higher temperature and high relative humidity. In a preferred practice, the wood may be heated before and/or after application of the solution. The solution is also disclosed as a product.
摘要:
Disclosed is a method of reducing insect and microbial decay in wood. The method comprises the steps of:a) immersing the wood in a treatment solution comprising i) a C1-C6monoalkanolamine ester of boric acid (e.g., monoethanolamine ester of boric acid) and ii) creosote; andb) exposing the immersed wood from step a) to conditions which cause the release of boron from the C1-C6 monoalkanolamine ester of boric acid (monoethanolamine ester of boric acid) and which cause the boron to migrate into the interior of the wood.
摘要:
Use of a material based on lignocellulose materials, in particular a piece of wood or sawdust, subjected to a process of chemical treatment of said lignocellulose materials, consisting in subjecting said materials to a treatment with a chemical agent comprising hydrocarbon-based chains, this agent being chosen from mixed carboxylic anhydrides, said agent being suitable for ensuring grafting by covalent bonding of a plurality of hydrocarbon-based chains onto said materials, as a material resistant to xylophagous insects.
摘要:
Applicants have discovered that amine oxides enhance the uniform distribution and penetration of wood preservatives into wood substrates, minimize leaching of the wood preservatives, and improve the weatherability of the wood substrate. The present invention provides a method for enhancing the uniform distribution and penetration of at least one wood preservative into a wood substrate by applying a preservative composition to the wood substrate. The preservative composition comprises a wood distribution and penetration enhancing agent, which includes an amine oxide, and the wood preservatives. Another embodiment of the present invention is a method for enhancing the uniform distribution and penetration of one or more wood preservatives by applying the wood preservatives to the wood substrate and then applying the aforementioned wood distribution and penetration enhancing agent to the wood substrate. Alternatively, the wood distribution and penetration enhancing agent may be applied prior to application of the wood preservatives or both may be applied concurrently. Yet another embodiment is a preservative composition comprising a wood distribution and penetration enhancing agent and at least one wood preservative. Preferably, the composition comprises a uniform distribution and penetration enhancing effective amount of the wood distribution and penetration enhancing agent and a wood preserving effective amount of the wood preservative.
摘要:
A thermal polymerization of monomeric materials in a porous workpiece such as wood is carried out using a temperature-controlling or heat-carrying agent. The controlled heat supply for developing the threshold temperature for an exothermic reaction or for supplying the heat for an endothermic chemical reaction and for removal of excess heat in exothermic reactions is effected by water whose addition in small quantities is not detrimental to the workpiece or the reactions.