Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Coating or impregnation increases electrical conductivity or...
Patent
1996-09-06
1998-03-31
Weisberger, Richard
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Coated or impregnated woven, knit, or nonwoven fabric which...
Coating or impregnation increases electrical conductivity or...
442111, 442117, 442136, 442236, 428415, 428416, 428432, 428436, 428458, 4284774, 428530, 428901, 174121R, 524494, 525 71, 525 74, 525207, 525208, 525241, B32B 700, B32B 1710
Patent
active
057338230
ABSTRACT:
There are provided a prepreg for a printed circuit board which comprises a glass cloth impregnated with a flame retardative resin composition comprising a (A) resin composed of a (a) styrenic polymer having syndiotactic configuration, a (b) polymer having compatibility with or affinity for the component (a) and further containing polar group, and a (c) thermoplastic resin other than the components (a) and (b) and/or a rubbery elastomer; a (B) halogenated polystyrene in which the amount of halogen atoms contained in halogen compounds generated under specific conditions is at most 1000 ppm by weight; a (C) flame retardant aid; an (D) organic filler or inorganic filler; and the above glass cloth, and also a substrate for printed circuit which comprises the prepreg or a laminate comprising a plurality of the prepregs laminated on each other, at least one side of the prepreg or laminate being laminated with a metallic layer. The above substrate is greatly improved in resistance to electrolytic corrosion and imparted with high reliability, and thus can cope with high density commercial devices.
REFERENCES:
patent: 5436397 (1995-07-01), Okada
Sugioka Taizou
Yamao Shinobu
Idemitsu Petrochemical Co. Ltd.
Weisberger Richard
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