Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1984-09-28
1987-03-24
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 622, 156 626, 156 628, 156288, 162 13, 162105, 162106, 162138, 162DIG5, B32B 2306, B32B 3104
Patent
active
046523243
ABSTRACT:
A process for the production of a laminated sheet is disclosed, which comprises impregnating a base paper for laminated sheet using a wood pulp having an .alpha.-cellulose content of 87.0% or more with a synthetic resin to prepare a prepreg and subjecting the prepreg to laminate molding by heat. A process for the production of a metal foil-clad laminated sheet is also disclosed, which comprises impregnating a base paper for laminated sheet using a wood pulp having an .alpha.-cellulose content of 87.0% or more with a synthetic resin to prepare a prepreg, piling up the prepreg, placing a metal foil one either one or both sides of the prepregs, and subjecting the resulting prepregs with metal foil to laminate molding by heat. The laminated sheet or metal foil-clad laminated sheet of this invention has not only excellent punchability but also excellent electric characteristics and heat resistance and hence, it is quite useful as a laminated sheet for high density printed wiring system.
REFERENCES:
patent: 2698234 (1954-12-01), Seaman
patent: 4397882 (1983-08-01), Franz et al.
Yabuta Fumihiko
Yamashina Naotoshi
Sanyo-Kokusaku Pulp Co., Ltd.
Weston Caleb
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