Shatter-proof glass coating composition, tempered shatter-proof glass using it and method for manufacturing tempered shatter-proof glass
Disclosed are a coating composition applied on a tempered glass, the tempered glass preventing shattering when impacts are applied, and a manufacturing method thereof. The coating composition comprises a caprolactone-modified acryl resin, an acryl polyol, a polyurethane resin and the like, such that the tempered glass has improved strength and the ceramic part can be removed from a conventional tempered glass. Further provided is a vehicle product such as a vehicle glass component, such that passengers in the vehicle can be protected from the shattering of the broken tempered glass.
1. A coating composition comprising:
(a) an amount of about 50 to 60% by weight of a caprolactone-modified acryl resin component;
(b) an amount of about 10 to 20% by weight of an acryl polyol component;
(c) an amount of about 10 to 20% by weight of a polyurethane resin component;
(d) an amount of about 0.1 to 1.5% by weight of a reaction catalyst;
(e) an amount of about 0.1 to 1.5% by weight of a wet additive;
(f) an amount of about 1.0 to 1.5% by weight of a pigment; and
(g) an amount of about 5 to 20% by weight of a solvent,
all the % by weights based on the total weights of the components (a)-(g),
wherein the coating composition further comprises a hexamethylenediisocyanate trimer resin as a hardener.
2. The coating composition of claim 1 , wherein (a) the caprolactone-modified acryl acrly resin is present in a solid content of about 70 wt % based on the total weight of the caprolactone-modified acryl resin component, and a weight-average molecular weight of the caprolactone-modified acryl resin is of about 8,000 to 20,000, and a hydroxyl group content is of about 1 to 4%.
3. The coating composition of claim 1 , wherein (b) the acryl polyol is present in a solid content of about 55 wt % based on the total weight of the acryl polyol component, a weight-average molecular weight of the acryl polyol is of about 12,000 to 25,000, a hydroxyl group content is of about 0.2 to 2%, and a glass transition temperature of the acryl polyol is of about 70 to 80° C.
4. The coating composition of claim 1 , wherein (c) the polyurethane resin has a hydroxyl group content of about 0.5 to 1.0 wt % based on the total weight of the polyurethane resin, and a weight-average molecular weight of the polyurethane resin is of about 40,000 to 43,000, and the polyurethane resin is present in a solid content of about 70 to 80% based on the total weight of the polyurethane resin component.
5. The coating composition of claim 1 , wherein (d) the reaction catalyst is dibutyltindilaurate.
6. The coating composition of claim 1 , wherein a mixing weight ratio between the total weights of (a) the caprolactone-modified acryl resin component; (b) the acryl polyol component; (c) the polyurethane resin component; (d) the reaction catalyst; (e) the wet additive; (f) the pigment; and (g) the solvent to the hardener is of about 2 to 4:1.
7. The coating composition of claim 1 , wherein a ford cup (FORD CUP#4, 25° C.) viscosity of the coating composition is of about 18 to 20 seconds.
8. The coating composition of claim 1 , wherein the coating composition is transparent.
9. The coating composition of claim 1 , wherein the coating composition is opaque.
10. The coating composition of claim 1 , consisting essentially of:
(a) an amount of about 50 to 60% by weight of a caprolactone-modified acryl resin component;
(b) an amount of about 10 to 20% by weight of an acryl polyol component;
(c) an amount of about 10 to 20% by weight of a polyurethane resin component;
(d) an amount of about 0.1 to 1.5% by weight of a reaction catalyst;
(e) an amount of about 0.1 to 1.5% by weight of a wet additive;
(f) an amount of about 1.0 to 1.5% by weight of a pigment; and
(g) an amount of about 5 to 20% by weight of a solvent,
all the % by weights based on the total weights of the components (a)-(g) and the hexamethylenediisocyanate trimer resin as a hardener.
11. The coating composition of claim 1 , consisting of:
(a) an amount of about 50 to 60% by weight of a caprolactone-modified acryl resin component;
(b) an amount of about 10 to 20% by weight of an acryl polyol component;
(c) an amount of about 10 to 20% by weight of a polyurethane resin component;
(d) an amount of about 0.1 to 1.5% by weight of a reaction catalyst;
(e) an amount of about 0.1 to 1.5% by weight of a wet additive;
(f) an amount of about 1.0 to 1.5% by weight of a pigment; and
(g) an amount of about 5 to 20% by weight of a solvent,
all the % by weights based on the total weights of the components (a)-(g) and the hexamethylenediisocyanate trimer resin as a hardener.
12. A coated tempered glass comprising:
a tempered glass;
a primer layer formed on a surface of the tempered glass; and
a coating layer formed from the coating composition of claim 1 , wherein the coating layer is on the primer layer.
13. The tempered glass of claim 12 , wherein the primer layer is formed by coating with a silane primer.
14. The tempered glass of claim 12 , wherein a pre-primer layer is formed between the tempered glass and the primer layer, and the pre-primer layer is a transparent layer formed with a silane primer.
15. The tempered glass of claim 12 , wherein the primer layer is formed at a width of about 5 to 15 cm at an outer edge of the tempered glass.
16. The tempered glass of claim 12 , wherein the coating layer has an average thickness of about 50 to 80 μm, and the coating layer is coated on a portion where the primer layer is formed or is coated on a front surface of the tempered glass which includes the primer layer.
17. A method of manufacturing a coated tempered glass, comprising:
coating a primer on a surface of a tempered glass to form a primer layer;
coating a coating composition of claim 1 on the primer layer; and
hardening the coating composition at a temperature of about 70 to 90° C for about 20 to 40 minutes.
18. A vehicle panorama roof comprising a coated tempered glass of claim 12 .
19. A vehicle comprising a coating layer formed from the coating composition of claim 1 .