JPS55137921A - Manufacture of laminated sheet - Google Patents
Manufacture of laminated sheetInfo
- 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
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
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) |
-
1979
- 1979-04-13 JP JP4582579A patent/JPS55137921A/en active Pending
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