发明授权
US07459044B2 Sheet material especially useful for circuit boards 失效
片材特别适用于电路板

Sheet material especially useful for circuit boards
摘要:
A sheet comprising thermoplastic polymer (TP) and short high tensile modulus fibers, in which the concentration of TP in the middle of the sheet is higher than at the surface of the sheet, useful for making prepregs with a thermoset resin.
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