US2005227786A1PendingUtilityA1

Golf ball with velocity reduced layer

48
Individually held — no corporate assignee on recordPriority: Jul 15, 2002Filed: Jun 9, 2005Published: Oct 13, 2005
Est. expiryJul 15, 2022(expired)· nominal 20-yr term from priority
Inventors:Michael J. SullivanMurali Rajagopalan
A63B 37/0088A63B 37/0084A63B 37/0041A63B 37/0078A63B 37/0003A63B 37/0043A63B 37/12
48
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Claims

Abstract

Disclosed herein is a golf ball comprising a core, a cover and a velocity-reduced layer disposed therebetween, wherein the velocity-reduced layer reduces the coefficient of restitution of the ball by at least 0.005, and wherein the velocity-reduced layer has a loss tangent in the range of 0.01 to 100 at frequency less than 100 Hz.

Claims

exact text as granted — not AI-modified
1 . A golf ball comprising a core, a cover and a velocity-reduced layer disposed therebetween, wherein the velocity-reduced layer reduces the coefficient of restitution of the ball by at least 0.005, and wherein the velocity-reduced layer has a loss tangent in the range of 0.01 to 100 at frequency of about 100 Hz.  
   
   
       2 . The golf ball of  claim 1 , wherein the velocity-reduced layer comprises a polyurethane or polyurea having a material hardness of less than 40 Shore A.  
   
   
       3 . The golf ball of  claim 1 , wherein the velocity-reduced layer comprises a polyurethane or polyurea having a material hardness less than about 20 Shore A.  
   
   
       4 . The golf ball of  claim 1 , wherein the loss tangent is in the range of 0.05 to 50.  
   
   
       5 . The golf ball of  claim 4 , wherein the loss tangent is in the range of 0.1 to 10.  
   
   
       6 . The golf ball of  claim 1 , wherein the velocity-reduced layer has a material coefficient of restitution of 0.3 to 0.7.  
   
   
       7 . The golf ball of  claim 6 , wherein the material coefficient of restitution is in the range of 0.4 to 0.65.  
   
   
       8 . The golf ball of  claim 7 , wherein the material coefficient of restitution is in the range of 0.45 to 0.6.  
   
   
       9 . The golf ball of  claim 1 , wherein the velocity-reduced layer comprises plasticized polyurethane.  
   
   
       10 . The golf ball of  claim 9 , wherein the plasticized polyurethane is foamable.  
   
   
       11 . The golf ball of  claim 1 , wherein the velocity-reduced layer comprises latex.  
   
   
       12 . The golf ball of  claim 11 , wherein the latex has a flexural modulus of less that 10,000 psi.  
   
   
       13 . The golf ball of  claim 12 , wherein the latex has a flexural modulus of less than 3,000 psi.  
   
   
       14 . The golf ball of  claim 11 , wherein the latex has a material hardness of less than 90 Shore A.  
   
   
       15 . A golf ball comprising a core, a cover and a velocity-reduced layer disposed therebetween, wherein the velocity-reduced layer reduces the coefficient of restitution of the ball by at least 0.005, and wherein the velocity-reduced layer comprises a rubbery elastomeric material having a hardness from 10 Shore A to 50 Shore D wherein the loss tangent at 23° C. and a frequency of about 100 Hz is less than 100.  
   
   
       16 . The golf ball of  claim 15  wherein the loss tangent is less than 10.  
   
   
       17 . The golf ball of  claim 15 , wherein the loss tangent is less than 5.  
   
   
       18 . A golf ball comprising a core, a cover and a velocity-reduced layer disposed therebetween, wherein the velocity-reduced layer reduces the coefficient of restitution of the ball by at least 0.005, and wherein the velocity-reduced layer comprises a thermoplastic rigid materials having a hardness from 30 to 80 Shore D, wherein the loss tangent at 23° C. and a frequency of about 100 Hz is less than 100.  
   
   
       19 . The golf ball of  claim 18 , wherein the loss tangent is less than 10.  
   
   
       20 . The golf ball of  claim 18 , wherein the loss tangent is less than 5.

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