Golf balls with oxygen and moisture blocking protective paint layer
AssigneeAcushnet Company
InventorsDerek A. Ladd, Nicholas M. Nardacci, Edmund A. Hebert
Life of this patent
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Abstract
The present invention relates to compositions for golf equipment that can be applied as a thin paint layer to block oxygen and moisture from underlying structural layers. The compositions include a polymer component present in a resin system, a stabilizing component, and porous particles.
Claims20
A golf ball comprising a core and a cover, wherein at least one paint layer is disposed about the cover, wherein the paint layer is formed from a composition comprising:
- a polymer component;
- a paste comprising porous particles and a stabilizing component, wherein the porous particles have an average diameter between about 100 μm to about 500 μm, wherein the stabilizing component comprises a symmetrical copolymer comprising two alkylene oxide blocks having the same chain length surrounding an alkylene oxide block, wherein the paint layer has a thermal conductivity ranging from about 0.03 to about 0.3 Btu/hr ft ° F;
- wherein the paint layer comprises an adhesion strength of about 5 lbf/in or greater, and the golf ball has a weight gain of about 15 grams per 100 in2 per day or less at 38° C. and 90 percent relative humidity;
- and
- wherein the paint layer has a thickness of about 275 μm to about 500 μm.
A golf ball comprising a core, a cover, and a paint layer disposed on the cover, wherein the paint layer is formed from a composition comprising:
- a resin system comprising a polymer component and a stabilizing component, wherein the stabilizing component is selected from the group consisting of ethylene oxide-propylene oxide block copolymers, poly C2-C3 alkoxylated C12-C18 saturated or unsaturated fatty alcohols, poly C2-C3 alkoxylated hydrogenated or partially hydrogenated castor oils, poly C2-C3alkoxylated hydrogenated or partially hydrogenated soybean oils, polydimethyl siloxane C2-C3alkoxylates, and sorbitan esters of C12-C18 saturated or unsaturated fatty acids;
- porous particles having an average diameter between about 5 μm to about 75 μm, and wherein the paint layer has a thermal conductivity ranging from about 0.03 to about 0.3 Btu/hr ft ° F. and an adhesion stability of about 95 percent after 10 days at 110° F. in 100 percent humidity, and
- wherein the paint layer has a thickness of about 275 μm to about 500 μm.
A golf ball comprising a core, a cover, and a paint layer disposed on the cover, wherein the cover comprises polyurethane, polyurea, or a combination thereof, and wherein the paint layer is formed from a composition comprising:
- a polymer component;
- a stabilizing component, wherein the stabilizing component is selected from the group consisting of ethylene oxide-propylene oxide block copolymers, poly C2-C3 alkoxylated C12-C18 saturated or unsaturated fatty alcohols, poly C2-C3 alkoxylated hydrogenated or partially hydrogenated castor oils, poly C2-C3alkoxylated hydrogenated or partially hydrogenated soybean oils, polydimethyl siloxane C2-C3alkoxylates, and sorbitan esters of C12-C18 saturated or unsaturated fatty acids;
- porous particles having an average diameter between about 100 μm to about 500 μm, wherein the paint layer has a thermal conductivity ranging from about 0.05 to about 0.2 Btu/hr ft ° F. and an adhesion strength of about 10 lbf/in or greater,
- wherein the golf ball has a soze gain of about 0.001 inches or less after a seven-week period, and
- wherein the paint layer has a thickness of about 275 μm to about 500 μm.
The golf ball of claim15, wherein the porous particles have an average pore size from about 100 μm or less.
Dependencies are inferred from the claim text.