Patent US3979126A successfully refreshed from Google Patents.
US3979126A
Expired / Lapsed
US
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Ball and process and composition of matter for production thereof
Assignee: Acushnet Co
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Filing: 1973-01-10
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Granted: 1976-09-07
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Expires: 1993-01-10
Abstract
Abstract A solid plastic polyurethane golf ball is disclosed. The golf ball comprises a polyether urethane prepolymer with a curing agent.
Inventors
- 👤 Warren M. Dusbiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:42
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; A; A63; A63B; A63B37/00; A63B37/0003; A63B37/005; A63B37/0051; A63B37/0058; A63B37/007; A63B37/0072; A63B37/0074; A63B37/0077; A63B37/008; A63B37/0084; A63B37/0087; A63B45/00; B; B29; B29C; B29C35/00; B29C35/02; B29C35/0227; B29K; B29K2105/00; B29K2105/06; B29K2105/20; B29L; B29L2031/00; B29L2031/54; B29L2031/545; Y; Y10; Y10S; Y10S273/00; Y10S273/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
A polyurethane 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
______________________________________ prepared from the 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 2
Dependent Claim
102 words
A polyurethane 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
______________________________________ prepared from the 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
Dependent Claim
14 words
The golf ball of claim 1 wherein the PGA Compression is at least 30.
Claim 4
Dependent Claim
28 words
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 5
Dependent Claim
14 words
The golf ball of claim 1 wherein the polyether is a polyalkylene ether glycol.
Claim 6
Dependent Claim
34 words
The golf ball of claim 4 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 7
Dependent Claim
13 words
The golf ball of claim 5 wherein the polyether is polytetramethylene ether glycol.
Claim 8
Dependent Claim
25 words
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 9
Dependent Claim
35 words
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 10
Dependent Claim
23 words
The golf ball of claim 1 wherein the prepolymer and curing agent are present in an equivalent weight ratio of 1:1 ± 10%.
Claim 11
Dependent Claim
25 words
The golf ball of claim 1 further including per 100 parts prepolymer up to about 100 parts by weight of at least one compatible plasticizer.
Claim 12
Dependent Claim
25 words
The golf ball of claim 1 further including per 100 parts by weight of prepolymer up to about 100 parts by weight of a filler.
Claim 13
Dependent Claim
27 words
The golf ball of claim 1 further including per 100 parts by weight of prepolymer up to about two parts by weight of an ultraviolet light absorber.
Claim 14
Dependent Claim
27 words
The golf ball of claim 1 further including per 100 parts by weight of the prepolymer up to about ten parts by weight of an internal lubricant.
Claim 15
Dependent Claim
23 words
The golf ball of claim 1 further including per 100 parts by weight of prepolymer up to one part by weight of catalyst.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |