Claims
- 1. A coating composition comprising:(A) at least one polymer containing carboxyl group, having a weight-average molecular weight, as calculated in terms of styrene, of 5,000 to 200,000, an acid value of from 10 to 300 mgKOH/g, and a glass transition temperature of 50 to 250° C.; (B) as a crosslinking agent, a multifunctional epoxide-containing compound having at least one benzene ring or heterocycle, and two or more epoxy groups; (C) an organic solvent; and (D) at least one amino-containing silane coupling agent represented by the following general formula (I): H2N—R1—Si—(OR2)3 (I) wherein, R1 is an unsubstituted alkylene group, and R2's are independently an unsubstituted alkyl group.
- 2. The coating composition according to claim 1, wherein the polymer is a copolymer of acrylic acid or esters thereof or methacrylic acid or esters thereof with an aromatic vinyl compound.
- 3. The coating composition according to claim 1, wherein the epoxide-containing compound has three or more epoxy groups.
- 4. The coating composition according to claim 1, wherein the organic solvent is selected from the group consisting of propylene glycol-based, ethylene glycol-based, lactate-based, butyrate-based, acetate-based, formate-based and γ-butyrolactone solvents, and mixtures thereof.
- 5. The coating composition according to claim 1, wherein the R1 group and the three R2 groups contain 1 to 4 carbon atoms independently.
- 6. The coating composition according to claim 1, wherein the amino-containing silane coupling agent is at least one compound selected from the group consisting of 3-aminopropyl triethoxysilane and 3-aminopropyl trimethoxysilane.
- 7. A substrate coated with a coating composition set forth in claim 1.
- 8. A process for forming a protective film, comprising applying a coating composition set forth in claim 1 to a substrate to form thereon a protective film.
Priority Claims (1)
Number |
Date |
Country |
Kind |
11-370428 |
Dec 1999 |
JP |
|
Parent Case Info
This application claims benefit under 35 U.S.C. §371 of PCT/JP00/09156, filed Dec. 22, 2000.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/JP00/09156 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO01/48108 |
7/5/2001 |
WO |
A |
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
6410206 |
Ueda et al. |
Jun 2002 |
B1 |
Non-Patent Literature Citations (1)
Entry |
English abstract for JP 8027348, Jan. 30, 1996 (for laid-open publication No. 27348/1996 that is referenced in U.S. patent application). |