JPS57123210A - Production of varnish for photocurable prepreg tape - Google Patents
Production of varnish for photocurable prepreg tapeInfo
- Publication number
- JPS57123210A JPS57123210A JP881881A JP881881A JPS57123210A JP S57123210 A JPS57123210 A JP S57123210A JP 881881 A JP881881 A JP 881881A JP 881881 A JP881881 A JP 881881A JP S57123210 A JPS57123210 A JP S57123210A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy
- varnish
- resin
- photocurable prepreg
- production
- 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.)
- Granted
Links
Abstract
PURPOSE: To obtain a varnish excellent in stability and properties of a cured product, etc., and suitable for use in photocurable prepreg tapes, by dissolving a base resin prepared by modifying an epoxy acrylate resin with a specified linear polymer in a volatile solvent.
CONSTITUTION: An epoxy resin is mixed with and allowed to act on 10W40phr polyvinyl formal or/and phenoxy resin at 150W230°C. Then, the titled varnish is obtained by mixing the product with a mixed solvent consisting of 80W60pts.wt. aromatic hydrocarbon and 20W40pts.wt. alcohol, and then further with 0.7W 1.2eq./eq. epoxy of (meth)acrylic acid, a small amount of a polymerization inhibitor (e.g., hydroquinone) and an epoxy ring-opening catalyst (e.g., benzylmethylamine), reacting the resulting mixture until an acid value of 10 or below is obtained and adding 0.05W5wt% photosensitizer (e.g., benzoin methyl ether).
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP881881A JPS57123210A (en) | 1981-01-22 | 1981-01-22 | Production of varnish for photocurable prepreg tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP881881A JPS57123210A (en) | 1981-01-22 | 1981-01-22 | Production of varnish for photocurable prepreg tape |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57123210A true JPS57123210A (en) | 1982-07-31 |
JPH0156085B2 JPH0156085B2 (en) | 1989-11-28 |
Family
ID=11703384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP881881A Granted JPS57123210A (en) | 1981-01-22 | 1981-01-22 | Production of varnish for photocurable prepreg tape |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57123210A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6191212A (en) * | 1984-10-12 | 1986-05-09 | Dainippon Ink & Chem Inc | Resin composition for electrical laminated sheet |
WO1987004444A1 (en) * | 1986-01-21 | 1987-07-30 | Toray Industries, Inc. | Prepreg and its composite |
-
1981
- 1981-01-22 JP JP881881A patent/JPS57123210A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6191212A (en) * | 1984-10-12 | 1986-05-09 | Dainippon Ink & Chem Inc | Resin composition for electrical laminated sheet |
WO1987004444A1 (en) * | 1986-01-21 | 1987-07-30 | Toray Industries, Inc. | Prepreg and its composite |
US4859533A (en) * | 1986-01-21 | 1989-08-22 | Toray Industries, Inc. | Composite materials of reinforced fibers |
Also Published As
Publication number | Publication date |
---|---|
JPH0156085B2 (en) | 1989-11-28 |
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