JPS55137921A - Manufacture of laminated sheet - Google Patents

Manufacture of laminated sheet

Info

Publication number
JPS55137921A
JPS55137921A JP4582579A JP4582579A JPS55137921A JP S55137921 A JPS55137921 A JP S55137921A JP 4582579 A JP4582579 A JP 4582579A JP 4582579 A JP4582579 A JP 4582579A JP S55137921 A JPS55137921 A JP S55137921A
Authority
JP
Japan
Prior art keywords
laminated
sheet
laminated sheet
resin
impregnated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4582579A
Other languages
Japanese (ja)
Inventor
Norio Fujii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP4582579A priority Critical patent/JPS55137921A/en
Publication of JPS55137921A publication Critical patent/JPS55137921A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To protect against adhesion of resin, impregnated through a side of a laminated sheet, to a metal sheet and to produce a laminated sheet in a short time, by a method wherein the lamination is such that thickness of an uppermost layer and a lowermost layer, of an object laminated with a dry paper or a cloth impregnated with resin and a copper foil, which are in contact with a metal sheet for a mold, is wider than that of an intermediate layer.
CONSTITUTION: A prepreg is formed such that a lamination base material, such as papers, cloths, is impregnated with thermoplastic resin varnish for drying. A suitable number of the prepregs are laminated such that an uppermost layer and a lowermost layer thereof is about 60mm thicker than an intermediate layer. In addition, a copper foil, which is 0.018W0.105mm thick and has a purity of 99.5% or more, is laminated on both sides or one side thereof if necessary. So laminated object positioned between the nip formed by two nold metal sheets is inserted into between two heat boards for heat-pressurizing to form a laminated sheet. This protects against adhesion of excessive resin, percolated from the side of the laminated sheet, to a metal sheet, and prevents the occurrence of blocking. This permits an easy mold-releasing, and thus, a working hour required for removal of the laminated sheet can be shortened.
COPYRIGHT: (C)1980,JPO&Japio
JP4582579A 1979-04-13 1979-04-13 Manufacture of laminated sheet Pending JPS55137921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4582579A JPS55137921A (en) 1979-04-13 1979-04-13 Manufacture of laminated sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4582579A JPS55137921A (en) 1979-04-13 1979-04-13 Manufacture of laminated sheet

Publications (1)

Publication Number Publication Date
JPS55137921A true JPS55137921A (en) 1980-10-28

Family

ID=12730014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4582579A Pending JPS55137921A (en) 1979-04-13 1979-04-13 Manufacture of laminated sheet

Country Status (1)

Country Link
JP (1) JPS55137921A (en)

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