Ball and process and composition of matter for production thereof

Claim 2

A golf ball having the following physical characteristics: ______________________________________ Diameter less than 1.70 inches PGA Compression at least 25 Hardness Shore "C" Scale at least 60 Rebound 72 inch at least 48 inches Initial Velocity USGA at least 230 feet/second ______________________________________ said golf ball comprising a core and a cover, at least one of which is prepared from a composition comprising a prepolymer of a polyether and a diisocyanate and a curing agent selected from the group consisting of trifunctional and tetrafunctional polyols and curing agents capable of curing the prepolymer and having at least two reactive amine groups, the prepolymer and the curing agent being present in an equivalent weight ratio of 1:1 ± 20%.

Claim 3

The golf ball of claim 1 wherein the diisocyanate is selected from the group consisting of 2,4 tolylene diisocyanate, 4,4'diphenylmethane diisocyanate and 3,3' dimethyl 4,4' biphenyl diisocyanate.

Claim 4

The golf ball of claim 1 wherein the polyether is a polyalkene ether glycol.

Claim 5

The golf ball of claim 3 wherein the polyalkylene ether glycol has an average molecular weight of less than 1000 and has from about 4 to about 8 carbon atoms in the alkylene group.

Claim 6

The golf ball of claim 4 wherein the polyether is polytetramethylene ether glycol.

Claim 7

The golf ball of claim 1 wherein the curing agent is a trifunctional polyol selected from the group consisting of triisopropanol amine and trimethylol propane.

Claim 8

The golf ball of claim 1 wherein the curing agent is an amine-type curing agent selected from the group consisting of 3,3' dichlorobenzidene, 3,3' dichloro, 4,4' diamino diphenyl methane and N,N,N',N' tetrakis (2-hydroxy propyl) ethylene diamine.

Claim 9

The golf ball of claim 1 wherein the prepolymer and curing agent are present in an equivalent weight ratio of 1:1 ± 10%.

Claim 10

The golf ball of claim 1 further including at least one compatible plasticizer.

Claim 11

The golf ball of claim 1 further including a filler.

Claim 12

The golf ball of claim 1 further including an ultraviolet light absorber.

Claim 13

The golf ball of claim 1 further including an internal lubricant.

Claim 14

The golf ball of claim 1 further including a catalyst.

Claim 15

The golf ball of claim 13 wherein the diisocyanate is selected from the group consisting of 2,4 tolylene diisocyanate, 4,4' diphenylmethane diisocyanate and 3,3' dimethyl 4,4' biphenyl diisocyanate.

Claim 16

The golf ball of claim 14 wherein the polyether is a polyalkylene ether glycol.

Claim 17

The golf ball of claim 14 wherein the polyalkylene ether glycol has an average molecular weight of less than 1000 and has from about 4 to about 8 carbon atoms in the alkylene group.

Claim 18

The golf ball of claim 16 wherein the polyether is polytetramethylene ether glycol.

Claim 19

The golf ball of claim 16 wherein the curing agent is a trifunctional polyol selected from the group consisting of triisopropanol amine and trimethylol propane.

Claim 20

The golf ball of claim 18 wherein the curing agent is an amine-type curing agent selected from the group consisting of 3,3' dichlorobenzidene, 3,3' dichloro, 4,4' diamino diphenyl methane and N,N,N',N' tetrakis (2-hydroxy propyl) ethylene diamine.

Claim 21

The golf ball of claim 19 wherein the prepolymer and curing agent are present in an equivalent weight ratio of 1:1 ± 10%.

Claim 22

In a golf ball consisting of a plurality of portions, one portion of said golf ball being prepared from a composition comprising a prepolymer of a polyether and a diisocyanate and a curing agent selected from the group consisting of trifunctional and tetrafunctional polyols and curing agents capable of curing the prepolymer and having at least two reactive amine groups, the prepolymer and the curing agent being present in an equivalent weight ratio of 1:1 ± 20%, said plurality of portions of said golf ball including said one portion being selected to yield a golf ball having the following physical characteristics: ______________________________________ Diameter less than 1.70 inches PGA Compression at least 25 Hardness Shore "C" Scale at least 60 Rebound 72 inch at least 48 inches Initial Velocity USGA at least 230 feet/second ______________________________________ and wherein the ball is a two piece golf ball comprising a unitary core and a cover, one of which is the said portion.

Claim 23

In a golf ball consisting of a plurality of portions, one portion of said golf ball being prepared from a composition comprising a prepolymer of a polyether and a diisocyanate and a curing agent selected from the group consisting of trifunctional and tetrafunctional polyols and curing agents capable of curing the prepolymer and having at least two reactive amine groups, the prepolymer and the curing agent being present in an equivalent weight ratio of 1:1 ± 20%, said plurality of portions of said golf ball including said one portion being selected to yield a golf ball having the following physical characteristics: ______________________________________ Diameter less than 1.70 inches PGA Compression at least 25 Hardness Shore "C" Scale at least 60 Rebound 72 inch at least 48 inches Initial Velocity USGA at least 230 feet/second ______________________________________ and wherein the ball is a two piece golf ball comprising a unitary core and a cover, one of which is the said portion.