JPS5695628A - Manufacture of laminated plate - Google Patents
Manufacture of laminated plateInfo
- Publication number
- JPS5695628A JPS5695628A JP17355079A JP17355079A JPS5695628A JP S5695628 A JPS5695628 A JP S5695628A JP 17355079 A JP17355079 A JP 17355079A JP 17355079 A JP17355079 A JP 17355079A JP S5695628 A JPS5695628 A JP S5695628A
- Authority
- JP
- Japan
- Prior art keywords
- immersed
- coating varnish
- substrate
- laminated plate
- primary coating
- 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
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
PURPOSE: To improve the insulating resistance and the dielectric characteristic of the laminated plate by a method wherein, the laminated plate is turned into a prepreg through the procedure that a paper substrate is immersed with a primary varnish containing a water soluble phenol resin, further, immersed with the top coating varnish of thermosetting property to be dried.
CONSTITUTION: The primary coating varnish 7 contains as its constituent, at least, a water soluble phenol resin and water. The paper substrate 6 is travelled maintaining contact with a roll which is rotating with its lower part being immersed in the primary coating varnish 7, thereby the substrate paper is immersed with the primary coating varnish. While the immersed water soluble phenol resin is still in the state of uncured, the substrate 6 is further immersed into the top coating varnish of thermosetting property, and the prepreg is obtained after the immersed substrate is guided into a drying furnace 9 for drying. Then, the necessary number of the prepreg sheets are press heated to obtain the laminated plate. As for the solvent material for the primary coating varnish, a mixture of water with acetone, toluene, xylene, and methanol, etc. is preferable.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17355079A JPS5695628A (en) | 1979-12-28 | 1979-12-28 | Manufacture of laminated plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17355079A JPS5695628A (en) | 1979-12-28 | 1979-12-28 | Manufacture of laminated plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5695628A true JPS5695628A (en) | 1981-08-03 |
Family
ID=15962606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17355079A Pending JPS5695628A (en) | 1979-12-28 | 1979-12-28 | Manufacture of laminated plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5695628A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4828064A (en) * | 1971-08-17 | 1973-04-13 |
-
1979
- 1979-12-28 JP JP17355079A patent/JPS5695628A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4828064A (en) * | 1971-08-17 | 1973-04-13 |
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