Nonwoven fabric cloth substrate for printed wiring boards, and p

Details Nonwoven fabric cloth substrate for printed wiring boards, and p Nonwoven fabric cloth substrate for printed wiring boards, and p

1997-05-15

1999-01-12

Krynski, William

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coated or impregnated synthetic organic fiber fabric

442 58, 442 65, 442117, C08J 524, C08J 504, H05K 103

Patent

active

058588841

ABSTRACT:
A nonwoven fabric cloth substrate for printed wiring boards containing aromatic polyamide fibers and having a 0.7-1.0 dynamic elastic modulus ratio (E' (250.degree. C.)/E' (30.degree. C.)) and a 0.05 or less loss tangent (Tan.delta.) peak value at 30.degree.-250.degree. C., and a prepreg and a printed wiring board using the nonwoven fabric cloth substrate.

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patent: 4686663 (1987-08-01), Kuhn
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patent: 4729921 (1988-03-01), Tokarsky
patent: 5002637 (1991-03-01), Toyoshima et al.
patent: 5049434 (1991-09-01), Uno et al.
patent: 5173359 (1992-12-01), Toyoshima et al.
patent: 5783039 (1998-07-01), Murayama

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