×

Golf balls incorporating foamed metallocene catalyzed polymer

  • US 5,824,746 A
  • Filed: 06/05/1996
  • Issued: 10/20/1998
  • Est. Priority Date: 01/24/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A golf ball comprising a cover and a core, the cover having at least one foamed layer, the foamed layer formed of a metallocene catalyzed polymer blend, comprising at least one metallocene catalyzed polymer and at least one ionomer, wherein the metallocene catalyzed polymer is of the formula:

  • ##STR3## wherein R1 is hydrogen, aromatic, heterocyclic, or lower alkyl selected from the group consisting of CH3, C2 H5, C3 H7, and C4 H9 ;

    R2 is hydrogen, aromatic, heterocyclic, or lower alkyl selected from the group consisting of CH3, C2 H5, C3 H7, C4 H9, and C5 H11 ;

    R3 is hydrogen or lower alkyl selected from the group consisting of CH3, C2 H5, C3 H7, C4 H9, and C5 H11 ;

    R4 is selected from the group consisting of H, CH3, C2 H5, C3 H7, C4 H9, C5 H11, C6 H13, C7 H15, C8 H17, C9 H19, C10 H21, and phenyl, in which from 0 to 5 H within R4 can be replaced by substituents selected from the group consisting of COOH, SO3 H, NH2, F, Cl, Br, I, OH, SH, silicone, lower alkyl esters and lower alkyl ethers, with the proviso that R3 and R4 can be combined to form a bicyclic ring;

    R5 is hydrogen, lower alkyl including C1 -C5, carbocyclic, aromatic or heterocyclic;

    R6 is hydrogen, lower alkyl including C1 -C5, carbocyclic, aromatic or heterocyclic; and

    wherein x ranges from 99 to 50 weight per cent of the polymer, y ranges from 1 to 50 weight per cent of the polymer and z ranges from 0 to 49 weight per cent of the polymer.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×