US4567219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for cover of golf balls
Assignee: Sumitomo Rubber Industries Ltd
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Filing: 1984-07-05
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Granted: 1986-01-28
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Expires: 2004-07-05
Abstract
Abstract A cover composition for golf balls having an improved impact resistance which comprises an ionomer resin and 1 to 15 parts by weight of a linear low density polyethylene per 100 parts by weight of the ionomer resin.
Inventors
- 👤 Ichiro Tominaga
- 👤 Taketo Matsuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:24
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L23/0876; A; A63; A63B; A63B37/00; A63B37/0003; A63B37/0023; A63B37/0024; A63B37/0029; A63B37/0033; A63B37/0036; A63B37/007; A63B37/0077; A63B37/0094; A63B37/12; C08L2205/00; C08L2205/02; C08L2205/03; C08L2205/035; C08L23/0807; C08L23/0815; Y; Y10; Y10S; Y10S524/00; Y10S524/908
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A cover composition for golf balls consisting essentially of an ionomer resin which is an ionic copolymer comprising units of an α-olefin and units of a monovalent or bivalent metal salt of an unsaturated monocarboxylic or dicarboxylic acid and 1 to 15 parts by weight of a linear low density polyethylene per 100 parts by weight of said ionomer resin.
Claim 2
Dependent Claim
60 words
A cover composition for golf balls consisting essentially of an ionomer resin which is an ionic copolymer comprising units of an α-olefin and units of a monovalent or bivalent metal salt of an unsaturated monocarboxylic or dicarboxylic acid and 1 to 15 parts by weight of a linear low density polyethylene per 100 parts by weight of said ionomer resin.
Claim 3
Dependent Claim
22 words
The composition of claim 1, wherein said linear low density polyethylene has a melt index of not less than 0.7 g/10 min.
Claim 4
Dependent Claim
31 words
The composition of claim 1, wherein the amount of said linear low density polyethylene is from 5 to 10 parts by weight per 100 parts by weight of said ionomer resin.
Claim 5
Dependent Claim
25 words
The cover composition according to claim 1, which further contains one or more additives selected from the group consisting of inorganic fillers, antioxidants and stabilizers.
Claim 6
Dependent Claim
25 words
The cover composition according to claim 4, wherein said inorganic filler is a member selected from the group consisting of titanium dioxide and zinc oxide.
References Cited (Backward Citations)
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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) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |