Patent US3974238A successfully refreshed from Google Patents.
US3974238A
Expired / Lapsed
US
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Solid rubber golf ball
Assignee: Acushnet Co
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Filing: 1974-10-11
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Granted: 1976-08-10
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Expires: 1994-10-11
Abstract
Abstract A solid rubber golf ball is disclosed. The golf ball is made from a composition comprising polybutadiene and an unsaturated carboxamide cross-linking said polybutadiene.
Inventors
- 👤 George C. Schweiker
- 👤 John W. Jepson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:41
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; A; A63; A63B; A63B37/00; A63B37/0003; A63B37/0023; A63B37/0029; A63B37/0031; A63B37/005; A63B37/007; A63B37/0072; A63B37/0074; A63B37/0077; A63B37/008; A63B37/0083; A63B37/0084; A63B37/0087; A63B37/0094; C08K; C08K5/00; C08K5/16; C08K5/20; A63B37/0075; A63B37/0076
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
117 words
In a golf ball, a composition comprising a cured composition of polybutadiene having a cis 1,4 polybutadiene content of at least 40%, from 1% to 40% by weight of polybutadiene of α,β ethylenically unsaturated carboxamide groups having in their monomer form the following structural formula: ##EQU3## wherein: R is hydrogen, or a methyl, ethyl, fluoro, chloro, or bromo group; and Z is hydrogen, or an alkyl, aryl or heteroatom substituted alkyl or aryl group; at least some of said carboxamide groups being graft polymerized to said polybutadiene the grafted carboxamide groups being attached to the polybutadiene at only one site, and hydrogen ions serving to bond at least some of the grafted carboxamide groups to each other.
Claim 2
Dependent Claim
117 words
In a golf ball, a composition comprising a cured composition of polybutadiene having a cis 1,4 polybutadiene content of at least 40%, from 1% to 40% by weight of polybutadiene of α,β ethylenically unsaturated carboxamide groups having in their monomer form the following structural formula: ##EQU3## wherein: R is hydrogen, or a methyl, ethyl, fluoro, chloro, or bromo group; and Z is hydrogen, or an alkyl, aryl or heteroatom substituted alkyl or aryl group; at least some of said carboxamide groups being graft polymerized to said polybutadiene the grafted carboxamide groups being attached to the polybutadiene at only one site, and hydrogen ions serving to bond at least some of the grafted carboxamide groups to each other.
Claim 3
Dependent Claim
16 words
The golf ball of claim 1 wherein the polybutadiene comprises at least 90% cis 1,4 polybutadiene.
Claim 4
Dependent Claim
11 words
The golf ball of claim 1 wherein the carboxamide is methacrylamide.
Claim 5
Dependent Claim
11 words
The golf ball of claim 1 wherein the carboxamide is acrylamide.
Claim 6
Dependent Claim
12 words
The golf ball of claim 1 wherein the carboxamide is diacetone acrylamide.
Claim 7
Dependent Claim
128 words
A golf ball comprising a core and a cover, at least one of which comprises a composition comprising a cured composition of polybutadiene having a cis 1,4 polybutadiene content of at least 40%, from 1% to 40% by weight of polybutadiene of α,β ethylenically unsaturated carboxamide groups having in their monomer form the following structural formula: ##EQU4## wherein: R is hydrogen, or a methyl, ethyl, fluoro, chloro, or bromo group; and Z is hydrogen, or an alkyl, aryl or heteroatom substituted alkyl or aryl group; at least some of said carboxamide groups being graft polymerized to said polybutadiene the grafted carboxamide groups being attached to the polybutadiene at only one site, and hydrogen ions serving to bond at least some of the grafted carboxamide groups to each other.
Claim 8
Dependent Claim
128 words
A golf ball comprising a core and a cover, at least one of which comprises a composition comprising a cured composition of polybutadiene having a cis 1,4 polybutadiene content of at least 40%, from 1% to 40% by weight of polybutadiene of α,β ethylenically unsaturated carboxamide groups having in their monomer form the following structural formula: ##EQU4## wherein: R is hydrogen, or a methyl, ethyl, fluoro, chloro, or bromo group; and Z is hydrogen, or an alkyl, aryl or heteroatom substituted alkyl or aryl group; at least some of said carboxamide groups being graft polymerized to said polybutadiene the grafted carboxamide groups being attached to the polybutadiene at only one site, and hydrogen ions serving to bond at least some of the grafted carboxamide groups to each other.
Claim 9
Dependent Claim
16 words
The golf ball of claim 6 wherein the polybutadiene comprises at least 90% cis 1,4 polybutadiene.
Claim 10
Dependent Claim
11 words
The golf ball of claim 6 wherein the carboxamide is methacrylamide.
Claim 11
Dependent Claim
11 words
The golf ball of claim 6 wherein the carboxamide is acrylamide.
Claim 12
Dependent Claim
12 words
The golf ball of claim 6 wherein the carboxamide is diacetone acrylamide.
Claim 13
Dependent Claim
29 words
The golf ball of claim 6 wherein the ball is a two piece ball comprising a core and a cover and the composition of claim 7 is the core.
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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |