Golf ball

Abstract

In a golf ball comprising a core and a cover of at least one layer enclosing the core, at least one layer of the cover is formed of a resin composition comprising as essential components, (a) a component selected from the group consisting of an olefin-unsaturated carboxylic acid copolymer, an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer, and metal ion-neutralized products of these copolymers, and (b) a binary copolymer consisting of a polyolefin component and a polyamide component.

1 . A golf ball comprising a core and a cover of at least one layer enclosing the core, wherein 
 at least one layer of said cover is formed of a resin composition comprising as essential components,    (a) a component selected from the group consisting of an olefin-unsaturated carboxylic acid copolymer, an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer, and metal ion-neutralized products of these copolymers, and    (b) a binary copolymer consisting of a polyolefin component and a polyamide component.    
   
   
       2 . The golf ball of  claim 1 , wherein component (b) is a binary copolymer consisting of a polyolefin component and nylon fibers.  
   
   
       3 . The golf ball of  claim 2 , wherein a crystalline polyolefin component is bound to surfaces of nylon fibers.  
   
   
       4 . The golf ball of  claim 1 , wherein the polyolefin component in component (b) is a low-density polyethylene.  
   
   
       5 . The golf ball of  claim 1 , wherein the polyamide component in component (b) is nylon 6.  
   
   
       6 . The golf ball of  claim 1 , wherein components (a) and (b) are blended in a weight ratio (a)/(b) between 100/0.1 and 100/50.  
   
   
       7 . The golf ball of  claim 1 , wherein in component (b), polyolefin component (b-1) and polyamide component (b-2) are blended in a weight ratio (b-1)/(b-2) between 25/75 and 95/5.  
   
   
       8 . The golf ball of  claim 1 , wherein a cover layer formed of said resin composition is a cover outermost layer.  
   
   
       9 . The golf ball of  claim 1 , wherein the cover is composed of two or more layers, and a cover layer formed of said resin composition is a cover inner layer.