Coating material composite and coated article
View Patent ↗A coating material composite, comprising containing: a silane compound represented by the general formula (A); and an epoxy group-containing organic compound containing one or more epoxy groups in each molecule; wherein the silane compound has a content of 60 to 97 % by weight relative to a total amount of resin components; and wherein the epoxy group-containing organic compound has a content of 3 to 10 % by weight relative to the total amount of resin components; X m R 1 3−m Si—Y—SiR 1 3−m X m (A) [R 1 is a monovalent hydrocarbon group having a carbon number of 1 to 6; Y is a divalent organic group containing one or more fluorine atoms; X is a hydrolytic group; and m is an integer of 1 to 3]. The coating formed by such a coating material composite is capable of keeping a higher anticrack property even upon exposure to high-temperature.
1. A coating material composite, comprising:
a silane compound represented by the following general formula (A); and
an epoxy group-containing organic compound containing one or more epoxy groups in each molecule;
wherein the silane compound has a content of 60 to 93.2% by weight relative to a total amount of resin components; and
wherein the epoxy group-containing organic compound has a content of 6.8 to 10% by weight relative to the total weight of resinifiable components;
X m R 1 3−m Si—Y—SiR 1 3−m X m (A)
wherein R 1 is a monovalent hydrocarbon group having a carbon number of 1 to 6; Y is a divalent organic group containing one or more fluorine atoms; X is a hydrolytic group; and m is an integer of 1 to 3.
2. The coating material composite as claimed in claim 1 , wherein the epoxy group-containing organic compound comprises at least one compound selected from a compound represented by the following general formula (B) and a compound represented by the following general formula (C):
R 2 n R 3 p SiZ 4−(n+p) (B)
wherein R 2 and R 3 are each an organic group having a carbon number of 1 to 16, and at least one of them includes an epoxy group; Z is a hydrolytic group; and, n and p are each an integer from 0 to 2, and 1≦n+p≦3;
wherein R 4 to R 15 are organic groups, one or two of them includes an epoxy group; and, q, r, s, and t are each an integer of 0 to 12.
3. The coating material composite as claimed in claim 1 , wherein the epoxy group-containing organic compound contains two epoxy groups in each molecule.
4. The coating material composite as claimed in claim 1 , further comprising: a fluorinated alkyl group-containing alkoxysilane represented by the following general formula (D):
R f —SiX 3 (D)
wherein R f is a monovalent organic group containing one or more fluorine atoms; and X is a hydrolytic group.
5. The coating material composite as claimed in claim 1 , further comprising: a filler.
6. The coating material composite as claimed in claim 1 , wherein the epoxy group-containing organic compound has a content of 6.8 to 10% by weight relative to the silane compound represented by the general formula (A).
7. A coated article having a surface formed with a cured coating derived from the coating material composite as claimed in claim 1 .
8. The coating material composite as claimed in claim 1 , wherein the epoxy group-containing organic compound comprises a compound represented by the following general formula (C):
wherein R 4 to R 15 are organic groups, and one or two of them includes an epoxy group; and, q, r, s, and t are each an integer of 0 to 12.