摘要:
It is disclosed chitosan-reinforced urea-formaldehyde (UF) adhesives for bonding wood-based composites, such as plywood and particleboard, or other fibrous materials and the method of producing the adhesives. The adhesives are produced by mixing unmodified chitosan containing raw material and a urea-formaldehyde resin to produce wood composite adhesive resins.
摘要:
Engineered wood may be produced with substituted cellulose ester adhesives. For example, an engineered wood may comprise a plurality of wood substrates that independently comprise a lignin-containing material (e.g., wood dust, wood particles, wood chips, and the like), the plurality of wood substrates being adhered together with an adhesive that comprises a substituted cellulose ester that comprises a cellulose polymer backbone having an organic ester substituent and an inorganic ester substituent that comprises an inorganic, nonmetal atom selected from the group consisting of sulfur, phosphorus, boron, and chlorine.
摘要:
Engineered wood may be produced with substituted cellulose ester adhesives. For example, an engineered wood may comprise a plurality of wood substrates that independently comprise a lignin-containing material (e.g., wood dust, wood particles, wood chips, and the like), the plurality of wood substrates being adhered together with an adhesive that comprises a substituted cellulose ester that comprises a cellulose polymer backbone having an organic ester substituent and an inorganic ester substituent that comprises an inorganic, nonmetal atom selected from the group consisting of sulfur, phosphorus, boron, and chlorine.
摘要:
The invention relates to a novel covering, especially a floor covering or similar, based on panels (9, 9′) made of wood or a derived timber product, especially (décor) laminated panels of wood or derived timber products, with a carrier on the underside and a wear layer on the visible side. Said panels are adhesively supported, can be arranged laterally and adjacently, and are provided with laterally, optionally mutually latchable or clickable positive locking elements such as grooves (92) and tongues (91). The covering is characterised in that the groove(s) (92) and/or the tongues (91) of individual panels (9, 9′) or individual surface areas thereof (921 925; 911 915) is/are provided with a filling, and a coating (95) with an extrusion (96) or similar made adhesive properties during the lateral adjacent assembly of the panels (9, 9′) which is carried out by means of the groove(s) (92) and tongue(s) thereof, and/or made out of an adhesive activator which initiates or activates adhesive properties. The invention also relates to the panels used for the covering and production thereof.
摘要:
Method for manufacturing flame-resistance-treated decorative plywood by treating and permeating veneers with a flame retardant liquor. The flame retardant is able to penetrate into the interior of the veneer block, providing esterifications, aetherifications, and/or graft-copolymerifications to the hydroxy groups etc. within the veneers so that air, fire headstream, and inflammable gas are insulated or diluted to provide each veneer layer with flame-resistant capability. The heat decomposition process of the veneer is changed and inflammable capability controlled. The physical and chemical characteristics of the veneer is minimally altered after the treatment.
摘要:
A bioadhesive composition for bonding together adjacent surfaces of wood comprises a microbially-produced fermentation residue containing adherent microbial cells and glycocalyx. This residue finds particular application as a replacement for a significant amount of phenol-formaldehyde (PF) or other conventional adhesive component commonly used in the production of plywood and other wood products.
摘要:
The invention relates to a method for connecting two bodies according to which a connection means is arranged between connection surfaces of the bodies to be connected. The connection surfaces and the interlying connection means are held adjacent to each other. At least one of the bodies is mechanically stimulated in order to produce friction and frictional heat. The connection means contains at least one cross-linkable polymer or polymerisable and cross-linkable resin which is converted into a thermoplastic material by means of the frictional heat produced, rendering the connection means and the composite of the two bodies considerably more heat-resistant.
摘要:
The present invention relates to a method of a method of producing a wood-based product, comprising, in the following order: applying an adhesive composition comprising a solvent, onto the first surface only, drying and heating the adhesive composition applied to the first surface, wherein the solvent is partially dried off, and bringing together the first surface with the second surface, and pressing the two surfaces against each other.
摘要:
A conformable, heat-resistant, paintable acrylic-based pressure sensitive adhesive tape and method for adhering the tape to a substrate is provided. The tape is comprised of a solid acrylic-based carrier including an acrylic-based adhesive on both sides of the carrier, and a conformable, heat-resistant liner adhered to at least one side of the adhesive. In use, the tape is adhered on at least one side to a substrate, painted, and then exposed to elevated temperatures such as those encountered in an automotive, appliance, or other commercial paint bake process. The conformable tape can withstand temperatures up to 300° F. and can be painted without degradation of the adhesive or liner and without a reduction of the adhesive properties of the tape.