JPS555912A - Half-cured sheet forming material - Google Patents
Half-cured sheet forming materialInfo
- Publication number
- JPS555912A JPS555912A JP7734678A JP7734678A JPS555912A JP S555912 A JPS555912 A JP S555912A JP 7734678 A JP7734678 A JP 7734678A JP 7734678 A JP7734678 A JP 7734678A JP S555912 A JPS555912 A JP S555912A
- Authority
- JP
- Japan
- Prior art keywords
- forming material
- room temperature
- intermediate layer
- less
- thickness
- 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
Abstract
PURPOSE: A forming material that is made by press-forming the intermediate layer that is half-cured and nontakcy at room temperature and both surface layers that are uncured and reinforced, thus being used for electric appliances because of its high thickness accuracy, water and solvent resistance, interlaminar adhesion with metal foils or the like.
CONSTITUTION: As the intermediate layer is used a mixture mainly consisting of (A) an unsaturated polyester prepolymer being solid at room temperature, and (B) uncured epoxy resin having 2 or more epoxy group in the molecule and, when necessary, a photopolymerization initiator. The surface layers are made by impregnating a base material not afecting the light transmittance, such as a sheet of paper of less than 300 g/m2 with an unsaturated polyester resin being solid at room temperature and /or an epoxy resin by 30W200 g/m2. The molar ratio of A/B in the intermediate layer is 1/4W4/1. The thickness of sheet of the forming material is preferably less than 5mm in the respect of photocuring and the thickness of impregnation is less than 1mm, preferably less than 0.5mm.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7734678A JPS555912A (en) | 1978-06-28 | 1978-06-28 | Half-cured sheet forming material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7734678A JPS555912A (en) | 1978-06-28 | 1978-06-28 | Half-cured sheet forming material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555912A true JPS555912A (en) | 1980-01-17 |
Family
ID=13631349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7734678A Pending JPS555912A (en) | 1978-06-28 | 1978-06-28 | Half-cured sheet forming material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555912A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57133066A (en) * | 1981-02-13 | 1982-08-17 | Dainippon Printing Co Ltd | Decorative paper |
JPS5949240A (en) * | 1982-09-16 | 1984-03-21 | Dainippon Ink & Chem Inc | Prepreg with both high workability and compression moldability |
-
1978
- 1978-06-28 JP JP7734678A patent/JPS555912A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57133066A (en) * | 1981-02-13 | 1982-08-17 | Dainippon Printing Co Ltd | Decorative paper |
JPH0422694B2 (en) * | 1981-02-13 | 1992-04-20 | Dainippon Printing Co Ltd | |
JPS5949240A (en) * | 1982-09-16 | 1984-03-21 | Dainippon Ink & Chem Inc | Prepreg with both high workability and compression moldability |
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