Golf ball
A low modulus durable coating layer for a polyurethane covered golf ball is disclosed herein. The coating includes a high equivalent weight polyester polyol wherein the high equivalent weight polyester polyol has an equivalent weight of at least 1000.
1. A golf ball comprising:
a cover layer;
a coating layer disposed over the cover layer, the coating layer comprising
a first chemical component comprising a first polyol, a second polyol and a third polyol, n-butyl acetate, methyl amyl ketone, methyl isobutyl ketone, titanium dioxide, UV absorber and acrylate additives, wherein the first polyol is a high equivalent weight polyester polyol, the second polyol is a saturated polyester polyol, and the third polyol is a saturated polyester polyol, and
a second chemical component comprising methyl isobutyl ketone and an isocyanate compound.
2. The golf ball according to claim 1 wherein a mix ratio of the first component to the second component is three to one by volume.
3. The golf ball according to claim 1 wherein a mix ratio of the first component to the second component is four to one by mass.
4. The golf ball according to claim 1 wherein the isocyanate compound is a hexamethylene diisocyanate.
5. The golf ball according to claim 1 wherein the isocyanate compound has a nitro-carbon-oxygen content of approximately 23%.
6. The golf ball according to claim 1 wherein the cover layer is composed of a polyurethane material.
7. The golf ball according to claim 1 wherein the cover layer is composed of a reaction injection molded polyurethane material.
8. The golf ball according to claim 1 wherein the cover layer has a thickness ranging from 0.010 inch to 0.040 inch.
9. The golf ball according to claim 1 wherein the cover layer has a thickness ranging from 0.010 inch to 0.025 inch.
10. The golf ball according to claim 1 further comprising a core and a boundary layer, the cover layer disposed over the boundary layer.
11. The golf ball according to claim 1 wherein the coating layer has a low modulus.
12. A golf ball comprising:
a core;
a cover layer disposed over the core, the cover layer composed of a polyurethane material;
a coating layer disposed over the cover layer, the coating layer comprising
a first chemical component comprising a first polyol, a second polyol and a third polyol, n-butyl acetate, methyl amyl ketone, methyl isobutyl ketone, titanium dioxide, UV absorber and acrylate additives, wherein the first polyol is a high equivalent weight polyester polyol, the second polyol is a saturated polyester polyol, and the third polyol is a saturated polyester polyol, the first chemical component having a mass of 160 grams, and
a second chemical component comprising methyl isobutyl ketone and an isocyanate compound, the second chemical component having a mass of 40 grams.