US4398000A
Expired / Lapsed
US
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Golf ball
Assignee: Bridgestone Corp
•
Filing: 1981-08-07
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Granted: 1983-08-09
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Expires: 2001-08-07
Abstract
Abstract A solid type golf ball comprising a central core and an outer cover for the core and having an excellent flight performance and durability and acceptable "click" characteristics is presented. The main component of the outer cover of this golf ball is a polyetherester block copolymer containing the following X, Y and Z units: X: Butylene terephthalate unit Y: Ester unit other than butylene terephthalate Z: Polyetherester unit derived from a dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol having a number average molecular weight of 400 through 3000, wherein the X, Y and Z units are present in the following amounts: 30% by weight ≦X≦80% by weight 0% by weight ≦Y≦50% by weight 20% by weight ≦Z≦70% by weight.
Inventors
- 👤 Nobuyuki Kataoka
- 👤 Tasuku Saito
- 👤 Tsutomu Matsunaga
- 👤 Chiaki Tanaka
- 👤 Yoko Furuta
- 👤 Nagayoshi Naito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:37
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/12; A63B37/0003; A63B37/0023; A63B37/0024; A63B37/007; A63B37/0072; A63B37/0074; C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/672; Y; Y10; Y10S; Y10S525/00; Y10S525/902
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
In a solid type golf ball comprising a central core and an outer cover for the core, the improvement wherein the main component of the outer cover is at least one polyetherester block copolymer containing the following X, Y and Z units: X: Butylene terephthalate unit Y: Ester unit other than butylene terephthalate Z: Polyetherester unit derived from a dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol, having a number average molecular weight of 400 through 3000, wherein the X, Y and Z units are present in the following amounts: 30% by weight≦X≦80% by weight 0% by weight≦Y≦50% by weight 20% by weight≦Z≦70% by weight.
Claim 2
Dependent Claim
107 words
In a solid type golf ball comprising a central core and an outer cover for the core, the improvement wherein the main component of the outer cover is at least one polyetherester block copolymer containing the following X, Y and Z units: X: Butylene terephthalate unit Y: Ester unit other than butylene terephthalate Z: Polyetherester unit derived from a dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol, having a number average molecular weight of 400 through 3000, wherein the X, Y and Z units are present in the following amounts: 30% by weight≦X≦80% by weight 0% by weight≦Y≦50% by weight 20% by weight≦Z≦70% by weight.
Claim 3
Dependent Claim
38 words
A golf ball as claimed in claim 1, wherein the amounts of X, Y and Z units in the polyetherester block copolymer are: 40% by weight≦X≦70% by weight 0% by weight≦Y≦30% by weight 30% by weight≦Z≦60% by weight.
Claim 4
Dependent Claim
26 words
A golf ball as claimed in claim 1, wherein said polyetherester block copolymer has a stress at 10% elongation of 40 through 200 Kg/cm 2 .
Claim 5
Dependent Claim
104 words
A solid type golf ball comprising a central core and an outer cover for the core, wherein the main component of the outer cover is at least one polyetherester block copolymer containing the following X, Y and Z units: X: Butylene terephthalate unit Y: Ester unit other than butylene terephthalate Z: Polyetherester unit derived from a dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol, having a number average molecular weight of 400 through 3000, wherein the X, Y and Z units are present in the following amounts: 30% by weight≦X≦80% by weight 0% by weight≦Y≦50% by weight 20% by weight≦Z≦70% by weight.
Claim 6
Dependent Claim
104 words
A solid type golf ball comprising a central core and an outer cover for the core, wherein the main component of the outer cover is at least one polyetherester block copolymer containing the following X, Y and Z units: X: Butylene terephthalate unit Y: Ester unit other than butylene terephthalate Z: Polyetherester unit derived from a dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol, having a number average molecular weight of 400 through 3000, wherein the X, Y and Z units are present in the following amounts: 30% by weight≦X≦80% by weight 0% by weight≦Y≦50% by weight 20% by weight≦Z≦70% by weight.
References Cited (Backward Citations)
FR1567877A
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US4031165A
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US4119607A
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GB2064339B
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |