Patent US5686158A successfully refreshed from Google Patents.
US5686158A
Expired / Lapsed
US
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Low specific gravity silicone rubber golf club grip
Assignee: M Management Tex Ltd
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Filing: 1995-01-09
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Granted: 1997-11-11
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Expires: 2015-01-09
Abstract
Abstract A silicone rubber golf club grip comprises one hundred parts by weight of a high molecular weight polyorganosiloxane polymer, and approximately 20 to 40 parts by weight of a fumed silica filler having a surface area per gram of at least about 300 m2.
Inventors
- 👤 Robert M. Gibbon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:33
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; A; A63; A63B; A63B53/00; A63B53/14; A63B60/00; A63B60/06; A63B60/08; A63B60/14; C08K; C08K3/00; C08K3/34; C08K3/36; B; B29; B29K; B29K2019/00; B29K2083/00; B29K2105/00; B29K2105/06; B29K2105/16; B29L; B29L2031/00; B29L2031/46; B29L2031/463; B29L2031/52; B29L2031/5227; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/18; C08G77/20; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1397; Y10T428/25; Y10T428/254; Y10T428/259; Y10T428/27; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
52 words
A silicone rubber golf club grip, comprising: 100 parts by weight of a high molecular weight polyorganosiloxane polymer; and between 20 and 40 parts by weight of a filler consisting of a fumed silica filler having a surface area per gram of at least about 300 square meters, and no nonreinforcing filler.
Claim 2
Dependent Claim
52 words
A silicone rubber golf club grip, comprising: 100 parts by weight of a high molecular weight polyorganosiloxane polymer; and between 20 and 40 parts by weight of a filler consisting of a fumed silica filler having a surface area per gram of at least about 300 square meters, and no nonreinforcing filler.
Claim 3
Dependent Claim
23 words
The golf club grip of claim 1, wherein the total weight of said grip is in the range of 48 to 51 grams.
Claim 4
Dependent Claim
17 words
The golf club grip of claim 2, wherein said grip has a length of about ten inches.
Claim 5
Dependent Claim
42 words
The golf club grip of claim 3, wherein said grip has an internal bore coaxial to the length thereof that is sized to fit a shaft of a golf club having an external radius in the range of 0.58 to 0.60 inches.
Claim 6
Dependent Claim
32 words
The golf club grip of claim 1, wherein said polyorganosiloxane polymer comprises at least one polydiorganosiloxane having a major portion of methyl organo groups and a minor portion of vinyl organo groups.
Claim 7
Dependent Claim
43 words
The golf club grip of claim 5, wherein said polydiorganosiloxane has a molecular weight on the order of one million and a percentage by weight of vinyl groups in the range of 0.15 to 1.6 percent relative to all of the organo groups.
Claim 8
Dependent Claim
55 words
The golf club grip of claim 5, wherein said polyorganosiloxane polymer comprise a blend of at least two polydiorganosiloxanes, a first of said polydiorganosiloxanes having about 0.6 percent vinyl groups relative to the total organo groups, a second of the polydiorganosiloxanes having about 0.2 percent vinyl groups relative to the total number of organo groups.
Claim 9
Dependent Claim
35 words
The golf club grip of claim 1, wherein said fumed silica filler is present in the range of about 30 to about 33 parts by weight relative to one hundred parts of the polyorganosiloxane polymer.
Claim 10
Dependent Claim
35 words
The silicone rubber golf club grip of claim 1, and further comprising a tackifier present in the range of about 5 to 8 parts by weight relative to one hundred parts of the polyorganosiloxane polymer.
Claim 11
Dependent Claim
27 words
The golf club grip of claim 9, wherein said tackifier is selected from the group consisting of abalyn resin, HERCOLYN D, PICCOLYTE S 25 and mixtures thereof.
Claim 12
Dependent Claim
18 words
The golf club grip of claim 1, and further comprising about 0.8 parts by weight vinyl trialkoxy silane.
Claim 13
Dependent Claim
22 words
The golf club grip of claim 1, and further comprising from one to three parts by weight of a peroxide curing catalyst.
Claim 14
Dependent Claim
33 words
The golf club grip of claim 1, and further comprising, as a processing aid, an alkoxy- or hydroxy- terminated polydiorganosiloxane having a molecular weight substantially less than said high molecular weight polyorganosiloxane polymer.
Claim 15
Dependent Claim
38 words
The golf club grip of claim 13, wherein said processing aid comprises hydroxyl-ended polymethylvinyl siloxane having a molecular weight of approximately 2000 and present in the composition in the range of about four to five parts by weight.
Claim 16
Dependent Claim
47 words
The golf club grip of claim 1, and further comprising trimethyl-ended polymethylhydrosiloxane having a molecular weight of approximately 2000 and present in the composition in the range of about one to about two parts by weight relative to one hundred parts by weight of said polyorganosiloxane polymer.
Claim 17
Dependent Claim
78 words
A silicone rubber golf club grip, comprising: one hundred parts by weight of high molecular weight polydiorganosiloxane, with the organo groups thereof comprising between 98 and 99.95 percent methyl and the remainder vinyl; between about thirty and about forty parts by weight of a filler consisting of a fumed silica filler having a surface area of at least 300 square meters per gram and no nonreinforcing filler; and a curing catalyst for cross-linking said high molecular weight polydiorganosiloxane.
Claim 18
Dependent Claim
78 words
A silicone rubber golf club grip, comprising: one hundred parts by weight of high molecular weight polydiorganosiloxane, with the organo groups thereof comprising between 98 and 99.95 percent methyl and the remainder vinyl; between about thirty and about forty parts by weight of a filler consisting of a fumed silica filler having a surface area of at least 300 square meters per gram and no nonreinforcing filler; and a curing catalyst for cross-linking said high molecular weight polydiorganosiloxane.
Claim 19
Dependent Claim
54 words
The golf club grip of claim 16, and further comprising about five to about six parts by weight relative to 100 parts by weight of the high molecular weight polydiorganosiloxane, of hydroxyl-ended polysiloxane with a hydroxyl level of about two to six weight percent thereof and a molecular weight on the order of 2000.
Claim 20
Dependent Claim
41 words
The golf club grip of claim 16, and further comprising about one to two parts by weight relative to 100 parts by weight of the high molecular weight polydiorganosiloxane, of trimethyl-ended polymethylhydrosiloxane having a molecular weight on the order of 2000.
Claim 21
Dependent Claim
31 words
The golf club grip of claim 16, and further comprising about 0.8 parts by weight of vinyl trialkoxy silane, relative to 100 parts by weight of the high molecular weight polydiorganosiloxane.
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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) | 2000-11-10 | 2001-05-12 | 2001-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-10 | 2005-05-12 | 2005-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-10 | 2009-05-12 | 2009-11-11 | $7700.00 | Window Closed / Lapsed |