公开(公告)号：US4919739A

公开(公告)日：1990-04-24

申请号：US157836

申请日：1988-03-03

申请人： Robert Dyksterhouse ,  Joel A. Dyksterhouse ,  Alan C. Handermann ,  Edward D. Western

发明人： Robert Dyksterhouse ,  Joel A. Dyksterhouse ,  Alan C. Handermann ,  Edward D. Western

IPC分类号： B29B11/16 ,  B29B15/12 ,  B29C70/54 ,  B29K101/10 ,  B29K105/08 ,  C08J5/24

CPC分类号： C08J5/24 ,  B29B15/12 ,  B29C70/54 ,  B29K2105/0061 ,  B29K2105/0064 ,  B29K2105/251

摘要： An improved multifilamentary fibrous material is formed having solid particles of a matrix-forming thermosetting resin substantially uniformly dispersed among adjoining filaments in the absence of fusion bonding. The thermosetting resin particles initially are dispersed in an aqueous medium containing an effective amount of a dissolved polymeric binding agent and the viscosity of the medium subsequently is substantially increased to at least 50,000 cps. to form a gelled impregnation bath having a plastic flow characteristic with shear-thinning behavior wherein the thermosetting resin particles are substantially uniformly suspended. The resulting impregnation bath is caused to flow between the adjoining filaments of the multifilamentary fibrous material with a concomitant viscosity reduction which aids in the incorporation of the resin particles. The concentration of the aqueous medium in the product is controlled to yield a uniform, handleable, drapable, tacky, and highly stable product. Upon the application of heat and pressure the improved product can be transformed into a fiber-reinforced composite article wherein the thermosetting resin forms the matrix phase.

摘要翻译： 在不存在熔融粘合的情况下，改进的复丝纤维材料形成为具有基本均匀分散在相邻长丝之间的基质形成热固性树脂的固体颗粒。 首先将热固性树脂颗粒分散在含有有效量的溶解的聚合物粘合剂的水性介质中，并且介质的粘度随后基本上增加至至少50,000cps。 以形成具有剪切稀化行为的塑性流动特性的凝胶浸渍浴，其中热固性树脂颗粒基本均匀地悬浮。 导致的浸渍浴在复丝纤维材料的相邻长丝之间流动，伴随着粘度降低，这有助于引入树脂颗粒。 控制产品中水性介质的浓度以产生均匀的，可处理的，可悬挂的，粘性的和高度稳定的产品。 在施加热和压力时，改进的产品可以转化成纤维增强复合制品，其中热固性树脂形成基质相。

公开(公告)号：US4943472A

公开(公告)日：1990-07-24

申请号：US426443

申请日：1989-10-25

申请人： Robert Dyksterhouse ,  Joel A. Dyksterhouse ,  Alan C. Handermann ,  Edward D. Western

发明人： Robert Dyksterhouse ,  Joel A. Dyksterhouse ,  Alan C. Handermann ,  Edward D. Western

IPC分类号： B29B15/12

CPC分类号： B29B15/12 ,  B29K2105/0064 ,  B29K2105/251 ,  Y10S428/902 ,  Y10T428/24116 ,  Y10T428/24124 ,  Y10T428/254 ,  Y10T428/268 ,  Y10T428/269 ,  Y10T428/30 ,  Y10T428/31721 ,  Y10T442/699

摘要： An improved multifilamentary fibrous material is formed having solid particles of a matrix-forming thermosetting resin substantially uniformly dispersed among adjoining filaments in the absence of fusion bonding. The thermosetting resin particles initially are dispersed in an aqueous medium containing an effective amount of a dissolved polymeric binding agent and the viscosity of the medium subsequently is substantially increased to at least 50,000 cps. to form a gelled impregnation bath having a plastic flow characteristic with shear-thinning behavior wherein the thermosetting resin particles are substantially uniformly suspended. The resulting impregnation bath is caused to flow between the adjoining filaments of the multifilamentary fibrous material with a concomitant viscosity reduction which aids in the incorporation of the resin particles. The concentration of the aqueous medium in the product is controlled to yield a uniform, handleable, drapable, tacky, and highly stable product. Upon the application of heat and pressure the improved product can be transformed into a fiber-reinforced composite article wherein the thermosetting resin forms the matrix phase.

摘要翻译： 在不存在熔融粘合的情况下，改进的复丝纤维材料形成为具有基本均匀分散在相邻长丝之间的基质形成热固性树脂的固体颗粒。 首先将热固性树脂颗粒分散在含有有效量的溶解的聚合物粘合剂的水性介质中，并且介质的粘度随后基本上增加至至少50,000cps。 以形成具有剪切稀化行为的塑性流动特性的凝胶浸渍浴，其中热固性树脂颗粒基本均匀地悬浮。 导致的浸渍浴在复丝纤维材料的相邻长丝之间流动，伴随着粘度降低，这有助于引入树脂颗粒。 控制产品中水性介质的浓度以产生均匀的，可处理的，可悬挂的，粘性的和高度稳定的产品。 在施加热和压力时，改进的产品可以转化成纤维增强复合制品，其中热固性树脂形成基质相。