发明申请
WO2004076141A2 THIN-LAYER LIGNOCELLULOSE COMPOSITES HAVING INCREASED RESISTANCE TO MOISTURE AND METHODS OF MAKING THE SAME
审中-公开
基本信息:
- 专利标题： THIN-LAYER LIGNOCELLULOSE COMPOSITES HAVING INCREASED RESISTANCE TO MOISTURE AND METHODS OF MAKING THE SAME
- 专利标题（中）：对湿度有增强抵抗力的薄层木质纤维素复合材料及其制造方法
- 申请号：PCT/US2004/005415 申请日：2004-02-24
- 公开(公告)号：WO2004076141A2 公开(公告)日：2004-09-10
- 发明人： CLARK, Randy, Jon , DAVIS, Walter, B. , ALEXANDER, Jonathan, Philip
- 申请人： JELD-WEN INC. , CLARK, Randy, Jon , DAVIS, Walter, B. , ALEXANDER, Jonathan, Philip
- 申请人地址： 3250 Lakeport Boulevard, Klamath Falls, Oregon 97601 US
- 专利权人： JELD-WEN INC.,CLARK, Randy, Jon,DAVIS, Walter, B.,ALEXANDER, Jonathan, Philip
- 当前专利权人： JELD-WEN INC.,CLARK, Randy, Jon,DAVIS, Walter, B.,ALEXANDER, Jonathan, Philip
- 当前专利权人地址： 3250 Lakeport Boulevard, Klamath Falls, Oregon 97601 US
- 代理机构： ROTHSCHILD, Cynthia, B.
- 优先权： US60/449,535 20030224
- 主分类号： B27N
- IPC分类号： B27N
摘要：
A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.
摘要（中）：
公开了一种生产显示出对水分的显着抗性的薄层木质纤维素复合材料（例如木质门板）的方法。 在一个实施方案中，该方法包括形成包含精制木质纤维素纤维，蜡和有机异氰酸酯树脂的混合物的步骤。 最初压制混合物以形成松散的垫子。 随后，垫在高温和高压下在两个模具之间被挤压以进一步减小垫的厚度并促进树脂与木质纤维素纤维的相互作用。 在一个实施方案中，包含脱模剂作为纤维混合物的一部分，或喷涂到垫的表面上。 与不包含异氰酸酯树脂的薄层复合材料相比，本发明的薄层木质纤维素复合材料表现出强的表面强度，高粘附性以及在暴露于高湿度环境时线性膨胀和厚度膨胀减小50％