Patent ID: 6599455
Filing Date: 2003-07-29
Classification: B27N,C08L

Abstract:
In a process for producing wood particleboard, in which wood particles, optionally after a preceding comminution step, are treated with a crosslinkable binder and are subsequently pressed together under pressure and, if desired, elevated temperature to produce boards, the improvement comprising selecting as the binder a binder comprising two constituents A) and B), whereA) comprises a copolymer derived from one or more base comonomer unit(s) selected from the group consisting of vinyl esters of unbranched or branched alkylcarboxylic acids having from 1 to 18 carbon atoms, acrylic esters of branched or unbranched alcohols having from 1 to 15 carbon atoms, methacrylic esters of branched or unbranched alcohols having from 1 to 15 carbon atoms, dienes, olefins, vinylaromatics and vinyl halides, and from 0.1 to 50% by weight, based on the total weight of the copolymer, of one or more comonomer units comprising carboxyl, hydroxy, or NH functional groups, and B) is at least one compound having at least two reactive groups which can react with the functional groups of A) and which are selected from the group consisting of epoxy, N-methylol, isocyanate, ethylene carbonate groups, and mixtures thereof.