Claims
- 1. A powder coating composition comprising:
- 100 parts by weight of an epoxy resin;
- 5-35 parts by weight of an acid anhydride;
- 2-30 parts by weight of a phenol resin selected from the group consisting of phenol novolak resins, cresol novolak resins, t-butylphenol novolak resins, actylphenol novolak resins, nonylphenol novolak resins and bisphenol novolak resins;
- 0. 05-5 parts by weight of a curing accelerator; and
- 130-270 parts by weight of an inorganic filler consisting of 99.7-87.0% by weight of a first calcium carbonate filler component having an average particle size of 0.5-100 .mu.m and 0.3-13.0% by weight of a second calcium carbonate filler component having an average particle size of 0.1 .mu.m or less.
- 2. A powder coating composition as claimed in claim 1, wherein said inorganic filler consists of 99.5-90% by weight of said first filler component and 0.5-10.0% by weight of said second filler component.
- 3. A powder coating composition in accordance with claim 1, wherein said second filler component has an average particle size of 0.09 .mu.m or less.
- 4. A powder coating composition in accordance with claim 1, wherein said second filler component has an average particle size of 0.07 .mu.m or less.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-025777 |
Jan 1991 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/823,970, filed Jan. 22, 1992, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (7)
Number |
Date |
Country |
57-40524 |
Mar 1982 |
JPX |
58-198525 |
Nov 1983 |
JPX |
60-190418 |
Sep 1985 |
JPX |
63-168472 |
Jul 1988 |
JPX |
63-310504 |
Dec 1988 |
JPX |
64-001771 |
Jun 1989 |
JPX |
3-269066 |
Nov 1991 |
JPX |
Non-Patent Literature Citations (1)
Entry |
T. S. Carswell "Phenoplasts" (which is vol. 7 of High Polymers) pp. 29-34 Intersciences Publishing 1947. |
Continuations (1)
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Number |
Date |
Country |
Parent |
823970 |
Jan 1992 |
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