Appeal No. 2004-0049 Page 4
Application No. 10/047,626
beta-unsaturated carboxylic acid, and said inner cover having a modulus of from
about 15,000 to about 70,000 psi; and
an outer cover layer molded over said spherical intermediate ball to form a
multi-layer golf ball, said outer cover layer having a modulus in a range of about
1,000 to about 30,000 psi.
20. A multi-layer golf ball comprising:
a spherical core;
an inner cover layer molded over said spherical core to form a spherical
intermediate ball, said inner cover layer comprising an ionomeric resin including
about 17 % to about 25 % by weight of an alpha, beta-unsaturated carboxylic
acid; and
an outer cover layer molded over said spherical intermediate ball to form a
multi-layer golf ball, said outer cover layer having a modulus in a range of about
1,000 to about 30,000 psi.
Nesbitt's invention relates to a golf ball having a multilayer or two-ply cover
construction for a solid resilient center or core wherein the multilayer cover construction
involves two stage molded cover compositions over a solid center or core of resilient
polymeric material wherein an increased coefficient of restitution is attained and
wherein the "feel" or playing characteristics are attained similar to those derived from a
balata covered golf ball. The golf ball has a solid center or core 12 of resilient
polymeric or similar material covered by a first layer or ply 14 of molded hard, highly
flexural modulus resinous material or of cellular or foam composition which has a high
coefficient of restitution. The first layer or ply is provided with a second or cover layer
16 of a comparatively soft, low flexural modulus resinous material or of cellular or foam
composition molded over the first layer and core or center assembly. Nesbitt teaches
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