发明授权
US5618367A Dry powder process for preparing uni-tape prepreg from polymer powder
coated filamentary towpregs
失效
用于从聚合物粉末涂覆的丝状丝网纸制备单带预浸料的干粉工艺
- 专利标题： Dry powder process for preparing uni-tape prepreg from polymer powder coated filamentary towpregs
- 专利标题（中）： 用于从聚合物粉末涂覆的丝状丝网纸制备单带预浸料的干粉工艺
-
申请号： US425005申请日： 1995-04-10
-
公开(公告)号： US5618367A公开(公告)日： 1997-04-08
- 发明人: Steven P. Wilkinson , Norman J. Johnston , Joseph M. Marchello
- 申请人： Steven P. Wilkinson , Norman J. Johnston , Joseph M. Marchello
- 申请人地址： DC Washington
- 专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人地址： DC Washington
- 主分类号： B29B15/10
- IPC分类号： B29B15/10 ; B29C70/50 ; B32B5/28 ; B32B31/16 ; B32B31/00
摘要：
A process for preparing uni-tape prepreg from polymer powder coated filamentary towpregs is provided. A plurality of polymer powder coated filamentary towpregs are provided. The towpregs are collimated so that each towpreg is parallel. A material is applied to each side of the towpreg to form a sandwich. The sandwich is heated to a temperature wherein the polymer flows and intimately contacts the filaments and pressure is repeatedly applied perpendicularly to the sandwich with a longitudinal oscillating action wherein the filaments move apart and the polymer wets the filaments forming a uni-tape prepreg. The uni-tape prepreg is subsequently cooled.
公开/授权文献
- US4083799A Method of steam reforming 公开/授权日：1978-04-11