Patent US3671477A successfully refreshed from Google Patents.
US3671477A
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US
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Composition comprising unsaturated elastomer,epoxy resin polycarboxylic acid or anhydride,cross-linking catalyst and filler and golf ball made therefrom
Assignee: Campbell Manufacturing Co Ltd
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Filing: 1970-12-16
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Granted: 1972-06-20
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Expires: 1990-12-16
Abstract
Abstract A composition of matter particularly suitable for the manufacture of unitary molded golf balls consists of a blend of an unsaturated elastomer capable of being crosslinked by peroxide-initiated polymerization, an epoxy resin, a curing agent comprising unsaturated polycarboxylic acid or unsaturated polycarboxylic acid anhydride, a crosslinking catalyst for the elastomer and a filler material.
Inventors
- 👤 Robert Dennis Nesbitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:06
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K3/00; C08K3/01; C08K3/013; C08K5/00; C08K5/04; C08K5/09; C08K5/14; C08L63/00; Y; Y10; Y10S; Y10S273/00; Y10S273/03; Y10S273/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
16 words
A composition of matter as claimed in claim 1 also containing an epoxy resin curing accelerator.
Claim 2
Dependent Claim
14 words
A composition of matter as claimed in claim 1 also containing a coloring pigment.
Claim 3
Dependent Claim
21 words
A composition of matter as claimed in claim 1 wherein the crosslinking catalyst is of the free radical or peroxide type.
Claim 4
Dependent Claim
37 words
A composition of matter as claimed in claim 1 wherein the filler material is selected from the group consisting of silica, cLays, carbonates, talc, metal oxides, asbestos, glass, particulate synthetic plastics, particulate carbonaceous materials and mixtures thereof.
Claim 5
Dependent Claim
32 words
A composition of matter as claimed in claim 2 wherein the epoxy resin curing accelerator is selected from the group consisting of stannous octoate, dimethylaminomethylphenol, tri(di-methylaminomethyl) phenol, Lewis acids and mixtures thereof.
Claim 6
Dependent Claim
29 words
A composition of matter as claimed in claim 1 wherein the epoxy resin curing agent or hardener is selected from fumaric acid, maleic acid, maleic anhydride and mixtures thereof.
Claim 7
Dependent Claim
145 words
A unitary molded golf ball of improved cut and impact resistance having a maximum diameter of about 1.69 inches comprising 100 parts by weight of an elastomer capable of being cross-linked by peroxide-initiated polymerization selected from the group consisting of cis-1,4-polybutadiene, polyisoprene, ethylene propylene non-conjugated diolefin terpolymers, styrene/butadiene rubbers, acrylonitrile/butadiene copolymers and mixtures thereof, from about 20 to about 45 parts by weight of an epoxy resin selected from the group consisting of cycloaliphatic epoxy resins, epoxy novolac resins, epichlorohydrin-4,4''-dihydroxydiphenyl-dimethylmethane resins and mixtures thereof, from about 5 to about 20 parts by weight of an epoxy resin curing agent or hardener selected from citraconic acid, itaconic acid, fumaric acid, maleic acid, maleic anhydride and mixtures thereof, from about 20 to about 45 parts by weight of a filler and from about 0.5 to about 5 parts by weight of a cross-linking catalyst for said elastomer.
Claim 8
Dependent Claim
37 words
A golf ball as claimed in claim 8 wherein the epoxy resin is a cyclo-aliphatic epoxy resin and the epoxy resin curing agent or hardener is selected from fumaric acid, maleic acid, maleic anhydride and mixtures thereof.
Claim 9
Dependent Claim
25 words
A golf ball as claimed in claim 9 also containing from about 0.1 to about 0.5 part by weight of an epoxy resin curing accelerator.
Claim 10
Dependent Claim
23 words
A golf ball as claimed in claim 9 also containing from about 0.5 to about 10 parts by weight of a coloring pigment.
Claim 11
Dependent Claim
20 words
A golf ball as claimed in claim 9 wherein the crosslinking catalyst is of the free radical or peroxide type.
Claim 12
Dependent Claim
36 words
A golf ball as claimed in claim 9 wherein the filler material is selected from the group consisting of silica, clays, carbonates, talc, metal oxides, asbestos, glass, particulate synthetic plastics, particulate carbonaceous materials and mixtures thereof.
Claim 13
Dependent Claim
31 words
A golf ball as claimed in claim 13 wherein the epoxy resin curing accelerator is selected from the group consisting of stannous octoate, dimethylaminomethylphenol, tri(dimethylaminomethyl) phenol, Lewis acids and mixtures thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |