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US 7,458,905 B2Granted
Functionalized, crosslinked, rubber nanoparticles for use in golf ball cores
AssigneeAcushnet Company
InventorsBrian Comeau, Murali Rajagopalan, Michael J. Sullivan
Life of this patent
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Abstract
A golf ball including a core formed from a polymer blend comprising a microgel having a Tg of −100° C. to 20° C. formed from a monomer, a co-monomer, and an initiator; and a thermoset rubber material; an outer cover layer; and an inner cover layer disposed between the core and outer cover layer.
Claims15
A golf ball comprising:
- a core comprising a polymer blend comprising a microgel having a Tg of −100° C. to 20° C. formed from a first monomer, a first co-monomer, and a first initiator;
- and a thermoset rubber material;
- and
- a castable polyurea or polyurethane outer cover layer having a thickness of 0.015 inches to 0.06 inches and comprising a polymer blend comprising a second microgel having a Tg of 20° C. to 100° C. formed from a second monomer, a second co-monomer, and a second initiator;
- wherein the second microgel is present in an amount sufficient to lower a water vapor transmission rate of the outer cover layer by 30% or greater.
2 more elements
Dependencies are inferred from the claim text.