Method for producing wood-base materials
申请公布号:AU2006219949(B2)
申请号:AU20060219949
申请日期:2006.03.03
申请公布日期:2011.06.02
发明人:FRANZ WEINGART;HOLGER MILITZ;AREND JOUKE KINGMA;FALKO WEPNER;ANDREAS KRAUSE
分类号:B27K3/15;B27D1/00
主分类号:B27K3/15
摘要:<p>The present invention relates to a process for the production of wood-base materials which have at least one thin veneer layer adhesively bonded over the surface to a substrate or to further veneer layers, which process comprises the following steps: i. impregnation of a veneer with an aqueous curable composition which comprises a) at least one curable urea compound selected from urea compounds H which have at least one N-bonded group of the formula CH2OR, where R is hydrogen or C1-C4-alkyl, and/or a 1,2-bishydroxyethane-1,2-diyl group bridging the two nitrogen atoms of the urea, precondensates of the urea compound H, and reaction products or mixtures of the urea compound H with at least one alcohol which is selected from C1-C6-alkanols, C2-C6-polyols and oligoethylene glycols, and b) at least one catalyst K effecting crosslinking of the urea compound; ii) gluing of the impregnated veneer and/or the substrate with a glue composition and iii) processing of the glued veneer to give a wood-base material at elevated temperature with curing of the crosslinkable urea compound, the impregnated veneer comprising the crosslinkable urea compound in substantially uncrosslinked form before the gluing in step ii).</p>
Затвор для предметов одеяния и т.д.
Приспособление для световой регистрации и демонстрации ходов шахматной игры
Устройство для приведения судов в движение
Золотниковое устройство для управления сетью гидравлического пресса
Способ соединения двух труб, внутренний периметр одной из которых больше наружного периметра другой
Способ консервирования помидоров, лука и чеснока
Червячная шестерня с шариковыми вращающимися зубьями
Способ получения инсектофунгицидов
Аппарат для протравливания зерна
Учебный прибор для черчения графиков на классной доске
Procédé pour la fabrication d'un éther hydroxypropylique de la cellulose.
Drehgestell für Geleisefahrzeuge.