Painted golf ball and process for preparing the same
AssigneeSRI Sports Limited
InventorTakashi Sasaki
Life of this patent
Estimating the term…
Abstract
The object of the present invention is to provide a golf ball having a paint film which is obtained from an environment-friendly aqueous paint and is excellent in the adhesion and the wear-resistance. The gist of the present invention lies in improving the adhesion between the paint film obtained from the aqueous polyurethane paint and the surface of the golf ball body by first applying the aqueous liquid of the aqueous polycarbodiimide on the surface of the golf ball body, subsequently forming the primer layer comprising the aqueous polycarbodiimide, and then applying the aqueous polyurethane paint to form the paint film, while reducing the amount of solvent used in the aqueous paint for applying on the golf ball by using the polycarbodiimide liquid and the aqueous polyurethane paint.
Claims20
A method for preparing a painted golf ball, comprising,
- coating an aqueous liquid of an aqueous polycarbodiimide, and
- subsequently coating an aqueous polyurethane paint on a surface of a golf ball body
- and wherein
- a curing paint is used as the aqueous polyurethane paint and the curing paint contains an aqueous polyisocyanate and an aqueous polyol having at least one carboxyl group in the molecule thereof and an acid number from 10 mgKOH/g to 50 mg KOH/g.
A method for preparing a painted golf ball, comprising,
- coating an aqueous liquid of an aqueous of an aqueous polycarbodiimide, and
- subsequently coating an aqueous polyurethane paint on a surface of a golf ball body, and wherein
- a one-component aqueous polyurethane paint having a carboxyl group is used as the aqueous polyurethane paint and, the one-component aqueous polyurethane has an acid number from 10 mg KOH/g to 60 mg KOH/g.
A painted golf ball comprising,
- a golf ball body,
- a primer layer comprising an aqueous polycarbodiimide and covering a surface of a golf ball body,
- a paint film covering the primer layer, wherein the paint film is formed by applying an aqueous polyurethane paint, and wherein
- the aqueous polyurethane paint is a curing paint containing an aqueous polyisocyanate and an aqueous polyol having at least one carboxyl group in the molecule thereof and an acid number from 10 mg KOH/g to 50 mg KOH/g.
A painted golf ball comprising,
- a golf ball body,
- a primer layer comprising an aqueous polycarbodiimide and a covering a surface of a golf ball body,
- a paint film covering the primer layer,
- wherein the paint film is formed by applying an aqueous polyurethane paint, and wherein
- the aqueous polyurethane paint is a one-component aqueous polyurethane having a carboxyl group and an acid number from 10 mg KOH/g to 60 mg KOH/g.
Dependencies are inferred from the claim text.