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Title:
CUSHION FOR MOLDING LAMINATED SHEET
Document Type and Number:
Japanese Patent JPH0647886
Kind Code:
A
Abstract:

PURPOSE: To reduce the outflow amount of a resin from the periphery of a laminated sheet at the time of molding, to make plate thickness deviation little and to reduce voids by making the heat conductivity of the central part of a cushion larger than that of the peripheral edge part thereof in the thickness direction of the cushion or making the pressure compression ratio of the central part smaller than that of the peripheral edge part.

CONSTITUTION: In a cushion 10 for molding a laminated sheet constituted by superposing a plurality of sheet material layers A, B, C, D, E, at least one layer among the sheet material layers is arranged so that the heat conductivity of the central part thereof is larger than that of the peripheral edge part thereof in the thickness direction of the cushion. When a plurality of the sheet material layers A-E are superposed one upon another, at least one sheet material layer is arranged so that the pressure compression rate of the central part thereof is smaller than that of the peripheral edge part thereof. For example, as shown by a drawing (b), aluminum foil 1 with a thickness of 0.1mm is bonded between kraft paper layers 2, 3 with a thickness of 1mm by a nitrile rubber adhesive 3.


Inventors:
OHORI KENICHI
ERIGUCHI HIDENORI
AOKI YASUYUKI
SHIMIZU AKIRA
Application Number:
JP20584792A
Publication Date:
February 22, 1994
Filing Date:
August 03, 1992
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
B29C43/20; B29C43/32; B30B15/06; B32B37/10; B29L9/00; (IPC1-7): B32B31/20; B29C43/20; B29C43/32
Attorney, Agent or Firm:
Hirose Akira