Adhesion process
AssigneeSpalding Sports Worldwide, Inc.
InventorsMichael John Tzivanis, William M. Risen, Jr., Robert A. Weiss, Thomas J. Kennedy, III, David M. Melanson
Life of this patent
Estimating the term…
Abstract
Disclosed is a process to increase adhesion between two adjacent layers. The process comprises roughening the surface of one layer followed by chlorination of the roughened surface and joining of the layers, or treating the surface of one layer with a silicone-based adhesion promoter and joining the layers. In one preferred embodiment the process comprises roughening the surface of one layer, followed by chlorination of the roughened surface, joining of the layers and post-treatment of the molded layers at an elevated temperature for a predetermined time.
Claims11
A golf ball having enhanced interlayer adhesion comprising a first layer having a bonding surface, the bonding surface having an adhesion improvement treatment comprising roughening of the bonding surface followed by chlorination of the bonding surface and a second layer having a surface joined to the bonding surface, wherein one of the first or second layers is a golf ball mantle comprised of a material selected from at least one of polyurethane, ionomer, terpolymer, metallocene catalyzed polyolefin, polyamide block copolymer and polyester/polyether block copolymer and the other of the first or second layers is a golf ball cover comprised of a material selected from at least one of polyurethane, ionomer, terpolymer, metallocene catalyzed polyolefin, polyamide block copolymer and polyester/polyether block copolymer.
A game ball having enhanced interlayer adhesion comprising a first layer having a bonding surface, the bonding surface having an adhesion improvement treatment comprising treating the bonding surface with a silicone-based adhesion promoter and a second layer having a surface joined to the bonding surface, wherein the treatment further comprises post treatment of the game ball at an elevated temperature for a predetermined amount of time.
Dependencies are inferred from the claim text.