发明名称 |
HERSTELLUNG EINES VORGETRAENKTEN GEGENSTANDES, DER EIN THERMOPLASTISCHES POLYMERPULVER ENTHAELT, UND DER ZUM FORMEN EINES IM WESENTLICHEN LUNKERFREIEN, FASERVERSTAERKTEN MEHRSCHICHTKOERPERS GEEIGNET IST. |
摘要 |
An improved multifilamentary fibrous material is formed having particles of a matrix-forming thermoplastic polymer substantially uniformly dispersed among adjoining filaments in the absence of fusion bonding. The polymer 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 polymer 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 polymer 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 solid particles form the matrix phase. |
申请公布号 |
AT70765(T) |
申请公布日期 |
1992.01.15 |
申请号 |
AT19880900278T |
申请日期 |
1987.11.05 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
DYKSTERHOUSE, ROBERT;DYKSTERHOUSE, JOEL, A. |
分类号 |
B29B15/14;B29B15/12;B29C70/06;B29C70/10;B29C70/54;C08J5/04;C08J5/24;(IPC1-7):B29B15/12;B29C67/14 |
主分类号 |
B29B15/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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