Golf ball with soft feel

Abstract

A golf ball comprising: (a) a core; (b) an inner mantle layer; (c) an intermediate mantle layer; (d) an outer mantle layer; and (e) at least one cover layer; wherein the core has a PGA compression of less than 70, and the core/inner mantle layer/intermediate mantle layer combined construct has a PGA compression of at least 30.

What is claimed is: 
     
         1 . A golf ball comprising:
 (a) a core;   (b) an inner mantle layer, wherein the inner mantle layer comprises a copolymer comprising at least one first co-monomer selected from butadiene, isoprene, ethylene or butylene and at least one second co-monomer selected from a (meth)acrylate or a vinyl arylene;   (c) an intermediate mantle layer, wherein the intermediate mantle layer comprises a unimodal ionomer; a bimodal ionomer; a modified unimodal ionomer; a modified bimodal ionomer;   (d) an outer mantle layer, wherein the outer mantle layer comprises a unimodal ionomer; a bimodal ionomer; a modified unimodal ionomer; a modified bimodal ionomer; and   (e) at least one cover layer;   wherein the core has a PGA compression of less than 70, and the core/inner mantle layer/intermediate mantle layer combined construct has a PGA compression of at least 40.   
     
     
         2 . The golf ball of  claim 1 , wherein the inner mantle layer comprises a styrene-butadiene-styrene copolymer, a styrene-isoprene-styrene copolymer, a styrene-ethylene-butylene-styrene copolymer, or a styrene-ethylene-propylene-styrene copolymer. 
     
     
         3 . The golf ball of  claim 1 , wherein the second co-monomer in the inner mantle layer copolymer comprises styrene. 
     
     
         4 . The golf ball of  claim 1 , wherein the outer mantle layer has a material flexural modulus of 30-110 kpsi. 
     
     
         5 . The golf ball of  claim 1 , wherein the core has a PGA compression of less than 60. 
     
     
         6 . The golf ball of  claim 1 , wherein the core has a PGA compression of less than 50. 
     
     
         7 . The golf ball of  claim 1 , wherein the core has a PGA compression of 30 to 40. 
     
     
         8 . The golf ball of  claim 3 , wherein the outer mantle layer has a material flexural modulus of 30-110 kpsi and the core has a PGA compression of 30 to 40. 
     
     
         9 . A golf ball comprising:
 (a) a core;   (b) an inner mantle layer, wherein the inner mantle layer comprises a styrene-ethylene-propylene-styrene copolymer;   (c) an intermediate mantle layer, wherein the intermediate mantle layer comprises a unimodal ionomer; a bimodal ionomer; a modified unimodal ionomer; a modified bimodal ionomer;   (d) an outer mantle layer, wherein the outer mantle layer comprises a unimodal ionomer; a bimodal ionomer; a modified unimodal ionomer; a modified bimodal ionomer; and   (e) at least one cover layer;   wherein the core has a PGA compression of less than 70, and the core/inner mantle layer/intermediate mantle layer combined construct has a PGA compression of at least 40.   
     
     
         10 . The golf ball of  claim 9 , wherein the outer mantle layer has a material flexural modulus of 30-110 kpsi. 
     
     
         11 . The golf ball of  claim 9 , wherein the core has a PGA compression of less than 60. 
     
     
         12 . The golf ball of  claim 9 , wherein the core has a PGA compression of less than 50. 
     
     
         13 . The golf ball of  claim 9 , wherein the core has a PGA compression of 30 to 40. 
     
     
         14 . The golf ball of  claim 9 , wherein the outer mantle layer has a material flexural modulus of 30-110 kpsi and the core has a PGA compression of 30 to 40. 
     
     
         15 . The golf ball of  claim 9 , wherein the outer mantle layer has a material Shore D hardness of at least 65 and a material flexural modulus of at least 65 kpsi.