基本信息:
- 专利标题: APPARATUS AND METHOD FOR LOW-DENSITY CELLULAR WOOD PLASTIC COMPOSITES
- 专利标题(中):低密度纤维木塑复合材料的设备和方法
- 申请号:PCT/US2004035661 申请日:2004-10-27
- 公开(公告)号:WO2005044536A2 公开(公告)日:2005-05-19
- 发明人: LAVER TERRY C , KELLER BRIAN , ENGLAND ALFRED , DOSTAL DAVID F
- 申请人: STRANDEX CORP , LAVER TERRY C , KELLER BRIAN , ENGLAND ALFRED , DOSTAL DAVID F
- 专利权人: STRANDEX CORP,LAVER TERRY C,KELLER BRIAN,ENGLAND ALFRED,DOSTAL DAVID F
- 当前专利权人: STRANDEX CORP,LAVER TERRY C,KELLER BRIAN,ENGLAND ALFRED,DOSTAL DAVID F
- 优先权: US69959903 2003-10-27
- 主分类号: B27N3/00
- IPC分类号: B27N3/00 ; B27N3/28 ; B29C44/22 ; B29C44/34 ; B29C47/00 ; B29C47/10 ; B29C47/34 ; B29C47/90
摘要:
An agent such as a blowing agent comprised of a chemical blowing agent or a physical blowing agent, for example a gas, is added to wood, plastic material. A low-pressure C02 tank or an air compressor with a refrigerated air dryer is attached either at or after the vent zone of a standard twin-screw extruder to insert the gas. During or after extrusion, the gas is dissolved in the wood-plastic melt material. The material expands which foams the wood-plastic material reducing the density of the final product.
摘要(中):
将诸如由化学发泡剂或物理发泡剂(例如气体)组成的发泡剂的试剂加入到木材,塑料材料中。 在标准双螺杆挤出机的通气区域之后或之后,附接有低压CO 2罐或具有冷藏空气干燥器的空气压缩机以插入气体。 在挤出期间或之后,将气体溶解在木塑熔体中。 该材料膨胀,使木塑料发泡,降低最终产品的密度。