Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1989-06-19
1990-06-12
Ryan, Patrick
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428245, 428413, 428418, 428457, 428462, 428901, 361397, 174256, B32B 900
Patent
active
049332287
ABSTRACT:
A thermosetting resin composition comprising a special poly(p-hydroxystyrene) derivative resin and a radical polymerization initiator, and if necessary an epoxy modified polybutadiene, can provide prepregs and laminates having a low dielectric constant, a shorter signalling delay time, good heat resistance and flame retardancy and thus being suitable for producing multilayer printed circuit boards.
REFERENCES:
patent: 3884992 (1975-05-01), Shimuzu et al.
patent: 4784917 (1988-11-01), Tawara et al.
Hiraga Ryo
Katagiri Jun'ichi
Nagai Akira
Narahara Toshikazu
Takahashi Akio
Hitachi , Ltd.
Ryan Patrick
LandOfFree
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