摘要:
The present invention is directed towards a multi-layer golf ball which comprises a core with one or more layers; at least one cover layer; and one or more mantle layers disposed between the core and cover layer, wherein the mantle layer comprises dynamically vulcanized thermoplastic elastomer, functionalized styrene-butadiene elastomer, thermoplastic polyurethane, metallocene polymer or blends thereof and thermoset materials.
摘要:
This invention relates to an improved hockey stick for use in playing ice and street hockey comprising a dual-blade stick with blade reinforcing means spaced inwardly from the point of bifurcation of the two blade toes.
摘要:
A multilayer golf ball including a solid center having a center hardness, a plurality of laminates cut into a plurality of shapes formed around the center to create an inner ball, and a cover formed around the inner ball, wherein the plurality of layers can include at least a first layer having a hardness greater than the center hardness and a second layer having a hardness greater than the first layer hardness, and optionally a third layer disposed between the first and the second layers having a hardness greater than the first layer hardness.
摘要:
A method of forming a water vapor barrier layer to a core of a golf ball is provided. The method includes placing the core of the golf ball into a vapor barrier composition, withdrawing the lifting device, and spinning and optionally oscillating the core within the composition for a time sufficient for the composition to form a layer on the core. The present invention also provides an apparatus that can be used to form a water vapor barrier layer.
摘要:
The present invention is directed to golf balls having at least one layer formed from a saturated polyurethane composition. The polyurethane is the product of a reaction between an H12MDI/PTMEG-based prepolymer and a polycaprolactone curing agent. Golf balls of the present invention include one-piece, two-piece, multi-layer, and wound golf balls. The composition may be present in any one or more of a core layer, a cover layer, or an intermediate layer.
摘要:
A method of forming a water vapor barrier layer to a core of a golf ball is provided. The method includes placing the core of the golf ball into a vapor barrier composition, withdrawing the lifting device, and spinning and optionally oscillating the core within the composition for a time sufficient for the composition to form a layer on the core. The present invention also provides an apparatus that can be used to form a water vapor barrier layer.
摘要:
The present invention is directed to golf balls having at least one layer formed from a saturated polyurethane composition. The polyurethane is the product of a reaction between an H12MDI/PTMEG-based prepolymer and a polycaprolactone curing agent. Golf balls of the present invention include one-piece, two-piece, multi-layer, and wound golf balls. The composition may be present in any one or more of a core layer, a cover layer, or an intermediate layer.
摘要:
The present invention is directed towards a method of forming a multilayer golf ball which comprises a core, an inner cover layer and an outer cover layer. The steps include forming a golf ball core; molding an inner cover layer around said golf ball core with a material having a first shore D hardness; and casting an outer cover layer around said inner cover layer and golf ball core with a thermoset material having a second shore D hardness less than the first. The core is comprised of a center made from a first rubber based material and an outer layer formed from a second rubber based material. Preferably, the first rubber based material has about 15 to 25 parts of a crosslinking agent per hundred parts of rubber and the second rubber based material has about 20 to 40 parts of a crosslinking agent per hundred parts of rubber.
摘要:
The present invention is directed to multi-layer golf balls having at least three core layers, at least one cover layer, and at least one intermediate layer between the core and the cover layer that acts as a vapor barrier. Advantageously, the at least three core layers have a hardness gradient that either increases or decreases toward the at least one intermediate vapor barrier layer.
摘要:
A method for reliably forming golf balls using solid cores is described. The method includes using a freezing apparatus to freeze a core. The core may be frozen at any desired temperature, for any desired duration. The time and duration may be chosen in order to achieve a desired size or effective modulus. When a core is sufficiently frozen, it may be placed in a molding apparatus. In order to minimize condensation or frost that may form on a frozen core, a dehumidifying method or apparatus may be included and a layer is preferably molded around the core soon after it is removed from the freezing apparatus.