Game ball
First Claim
1. A game ball comprising a molded spherical shell having a spherical inside surface and a spherical outside surface which define a wall thickness, the shell being formed from a first ionomer resin which is a metal salt of the reaction product of an olefin having from 2 to 8 carbon atoms and an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, a second ionomer resin which is a different metal salt of the reaction product of an olefin having from 2 to 8 carbon atoms and an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, the total amount of the first and second resins being about 70 percent to 85 percent of the total amount of resin, and low density polyethylene in the amount of 15 to 30 percent of the total amount of resin.
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Accused Products
Abstract
A game ball is made by rotationally molding a hollow spherical shell from a blend of foamed ionomer resins (Surlyn 9450 and Surlyn 8528) and low density polyethylene resin. The center of the hollow spherical core may be filled with foamed polyurethane, and the spherical core may be covered by a leather cover. If desired, hollow ceramic microspheres or beads can be added to the resins before molding.
122 Citations
8 Claims
- 1. A game ball comprising a molded spherical shell having a spherical inside surface and a spherical outside surface which define a wall thickness, the shell being formed from a first ionomer resin which is a metal salt of the reaction product of an olefin having from 2 to 8 carbon atoms and an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, a second ionomer resin which is a different metal salt of the reaction product of an olefin having from 2 to 8 carbon atoms and an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, the total amount of the first and second resins being about 70 percent to 85 percent of the total amount of resin, and low density polyethylene in the amount of 15 to 30 percent of the total amount of resin.
Specification