Claims
- 1. A powder coating composition, comprising:
100 parts by weight of a low temperature curable epoxy resin, represented by formula 1 below: 6 wherein n is a real number of from 0.1 to 30; R1 and R2 are, independently, a hydrogen, or an unsubstituted or substituted alkyl or alkoxy group having from 1 to 5 carbon atoms; and X is a hydrogen atom or a glycidyl group, wherein more than 20% of X are glycidyl groups; and 30 to 500 parts by weight of a curing agent.
- 2. The powder coating composition as set forth in claim 1, wherein the epoxy resin is represented by formula 4 below:
- 3. The powder coating composition as set forth in claim 1, wherein R1 and R2 are all methyl, and n is a real number of 1˜15.
- 4. The powder coating composition as set forth in claim 1, which comprises 0.1 to 20 parts by weight of a defoaming agent and 0.1 to 20 parts by weight of a leveling agent.
- 5. The powder coating composition as set forth in claim 1, wherein the curing agent is a phenolic curing agent or a polyester-based curing agent.
- 6. The powder coating composition as set forth in claim 1, which comprises 10 to 200 parts by weight of a universal bisphenol-A epoxy resin for powder coatings having an epoxy equivalent weight of 600 to 1500 g/eq, based on 100 parts by weight of the low temperature curable epoxy resin represented by formula 1.
- 7. The powder coating composition as set forth in claim 1, which further comprises at least one additive selected from the group consisting of a pigment, an antioxidant, a filler, a light stabilizer, a curing promoter and an ultraviolet absorber.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2001-81150 |
Dec 2001 |
KR |
|
2002-64617 |
Oct 2002 |
KR |
|
Parent Case Info
[0001] This application is being filed as a continuation-in-part of U.S. Ser. No. 10/138,406, which was filed May 6, 2002 (now abandoned).
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10138406 |
May 2002 |
US |
Child |
10321514 |
Dec 2002 |
US |