US4191671A
Expired / Lapsed
US
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Abrasion resistant rubber compositions
Assignee: Bridgestone Corp
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Filing: 1977-04-07
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Granted: 1980-03-04
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Expires: 1997-04-07
Abstract
Abstract Novel abrasion resistant rubber compositions are disclosed. The compositions are prepared by curing the mixtures comprising a diene elastomer, an α,β-ethylenically unsaturated carboxylic acid, a divalent metal compound, and an organic peroxide. When an unpolymerizable carboxylic acid is added to the mixture, the mechanical properties of the composition are improved. The addition of a carbon black to the mixtures brings about the improvement of weather-proofing property of the composition. The compositions are useful for the rubber stock of solid tires, snow removing plates and the like.
Inventors
- 👤 Nobuyuki Kataoka
- 👤 Takuya Takahashi
- 👤 Fujio Ohkawa
- 👤 Shiro Anzai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:42
CPC Classifications
B; B60; B60C; B60C1/00; C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/14; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
145 words
An abrasion resistant rubber composition having improved mechanical properties and flexing fatigue resistance due to component (E) below, said composition prepared by heating and curing the mixture comprising (A) a diene elastomer, (B) an α,β-ethylencially unsaturated carboxylic acid, wherein the ratio by weight of the component (A) to the component (B) is 87/13 to 55/45, (C) a divalent metal compound being present in quantities of 50 to 150 parts by weight per 100 parts by weight of the component (B), (D) an organic peroxide being present in quantities of 0.3 to 5.0 parts by weight per 100 parts by weight of the combined weight of the components (A) and (B), and (E) an unpolymerizable carboxylic acid or a metal salt of the unpolymerizable carboxylic acid being present in quantities of 1.5 to 17 parts by weight per 100 parts by weight of the component (A).
Claim 2
Dependent Claim
145 words
An abrasion resistant rubber composition having improved mechanical properties and flexing fatigue resistance due to component (E) below, said composition prepared by heating and curing the mixture comprising (A) a diene elastomer, (B) an α,β-ethylencially unsaturated carboxylic acid, wherein the ratio by weight of the component (A) to the component (B) is 87/13 to 55/45, (C) a divalent metal compound being present in quantities of 50 to 150 parts by weight per 100 parts by weight of the component (B), (D) an organic peroxide being present in quantities of 0.3 to 5.0 parts by weight per 100 parts by weight of the combined weight of the components (A) and (B), and (E) an unpolymerizable carboxylic acid or a metal salt of the unpolymerizable carboxylic acid being present in quantities of 1.5 to 17 parts by weight per 100 parts by weight of the component (A).
Claim 3
Dependent Claim
33 words
The composition according to claim 1, wherein the unpolymerizable carboxylic acid is selected from the class consisting of saturated aliphatic carboxylic acids, higher unsaturated carboxylic acids, alicyclic carboxylic acids, and aryl carboxylic acids.
Claim 4
Dependent Claim
30 words
The composition according to claim 2, wherein the saturated aliphatic carboxylic acid is selected from the class consisting of acetic acid, butyric acid, lauric acid, palmitic acid and steric acid.
Claim 5
Dependent Claim
16 words
The composition according to claim 2, wherein the higher unsaturated aliphatic carboxylic acid is oleic acid.
Claim 6
Dependent Claim
14 words
The composition according to claim 2, wherein the alicyclic carboxylic acid is naphthenic acid.
Claim 7
Dependent Claim
14 words
The composition according to claim 2, wherein the aryl carboxylic acid is benzoic acid.
Claim 8
Dependent Claim
32 words
The composition according to claim 1, wherein the metal of said metal salts of said unpolymerizable carboxylic acid is selected from the class consisting of zinc, calcium, magnesium, aluminum, sodium and cobalt.
Claim 9
Dependent Claim
167 words
An abrasion resistant composition having improved mechanical properties and flexing fatigue resistance due to component (E) below, said composition prepared by heating and curing the mixture comprising (A) a diene elastomer, (B) an α,β-ethylenically unsaturated carboxylic acid, wherein the ratio by weight of the component (A) to the component (B) is 87/13 to 55/45, (C) a divalent metal compound being present in quantities of 50 to 150 parts by weight per 100 parts by weight of the component (B), (D) an organic peroxide being present in quantities of 0.3 to 5.0 parts by weight per 100 parts by weight of the combined weight of the components (A) and (B), (E) an unpolymerizable carboxylic acid or a metal salt of the unpolymerizable carboxylic acid being present in quantities of 1.5 to 17 parts by weight per 100 parts by weight of the component (A), and (F) a carbon black being present in quantities less than 50 parts by weight per 100 parts by weight of the component (A).
Claim 10
Dependent Claim
167 words
An abrasion resistant composition having improved mechanical properties and flexing fatigue resistance due to component (E) below, said composition prepared by heating and curing the mixture comprising (A) a diene elastomer, (B) an α,β-ethylenically unsaturated carboxylic acid, wherein the ratio by weight of the component (A) to the component (B) is 87/13 to 55/45, (C) a divalent metal compound being present in quantities of 50 to 150 parts by weight per 100 parts by weight of the component (B), (D) an organic peroxide being present in quantities of 0.3 to 5.0 parts by weight per 100 parts by weight of the combined weight of the components (A) and (B), (E) an unpolymerizable carboxylic acid or a metal salt of the unpolymerizable carboxylic acid being present in quantities of 1.5 to 17 parts by weight per 100 parts by weight of the component (A), and (F) a carbon black being present in quantities less than 50 parts by weight per 100 parts by weight of the component (A).
Claim 11
Dependent Claim
199 words
An abrasion resistant composition having improved mechanical properties and flexing fatigue resistance due to component (E) below, said composition prepared by heating and curing the mixture comprising (A) a diene elastomer, (B) an α,β-ethylenically unsaturated carboyxlic acid, wherein the ratio by weight of the component (A) to the component (B) is 87/13 to 55/45, (C) a divalent metal compound being present in quantities of 50 to 150 parts by weight per 100 parts by weight of the component (B), (D) an organic peroxide being present in quantities of 0.3 to 5.0 parts by weight per 100 parts by weight of the combined weight of the components (A) and (B), (E) an unpolymerizable carboxylic acid or a metal salt of the unpolymerizable carboxylic acid being present in quantities of 1.5 to 17 parts by weight per 100 parts by weight of the component (A), (F) a carbon black being present in quantities less than 50 parts by weight per 100 parts by weight of the component (A), and (G) an amine compound or a phenol compound being present in quantities of 0.1 to 4.0 parts by weight per 100 parts of the combined weight of the components (A) and (B).
Claim 12
Dependent Claim
199 words
An abrasion resistant composition having improved mechanical properties and flexing fatigue resistance due to component (E) below, said composition prepared by heating and curing the mixture comprising (A) a diene elastomer, (B) an α,β-ethylenically unsaturated carboyxlic acid, wherein the ratio by weight of the component (A) to the component (B) is 87/13 to 55/45, (C) a divalent metal compound being present in quantities of 50 to 150 parts by weight per 100 parts by weight of the component (B), (D) an organic peroxide being present in quantities of 0.3 to 5.0 parts by weight per 100 parts by weight of the combined weight of the components (A) and (B), (E) an unpolymerizable carboxylic acid or a metal salt of the unpolymerizable carboxylic acid being present in quantities of 1.5 to 17 parts by weight per 100 parts by weight of the component (A), (F) a carbon black being present in quantities less than 50 parts by weight per 100 parts by weight of the component (A), and (G) an amine compound or a phenol compound being present in quantities of 0.1 to 4.0 parts by weight per 100 parts of the combined weight of the components (A) and (B).
Claim 13
Dependent Claim
24 words
The composition according to claim 9, wherein the amine compound is selected from the class consisting of secondary aryl amines and amine-ketone based compounds.
Claim 14
Dependent Claim
23 words
The composition according to claim 10, wherein the secondary aryl amine is selected from the class consisting of N-phenyl-N'-isopropyl-p-phenylenediamine, phenyl-β-naphthylamine, diphenylamine, and N,N'-diaryl-p-phenylenediamines.
Claim 15
Dependent Claim
14 words
The composition according to claim 11, wherein the secondary aryl amine is an N,N'-diaryl-p-phenylenediamine.
Claim 16
Dependent Claim
15 words
The composition according to claim 10, wherein the amine-ketone based compound is a polymerized, 1,2-dihydro-2,2,4-trimethylquinoline.
Claim 17
Dependent Claim
22 words
The composition according to claim 9, wherein the phenol compound is selected from the class consisting of 2,6-di-tert-butyl-4-methylphenol, 4,4-thiobis(6-tert-butyl-3-methyl)phenol and styrenated phenols.
Claim 18
Dependent Claim
15 words
An abrasion resistant rubber article which comprises casting the composition as claimed in claim 1.
Claim 19
Dependent Claim
13 words
A solid tire which comprises casting the composition as claimed in claim 1.
Claim 20
Dependent Claim
14 words
A snow removing plate which comprises casting the composition as claimed in claim 1.
Claim 21
Dependent Claim
24 words
The composition according to claim 1, wherein the diene elastomer is selected from the class consisting of butadiene rubbers, isoprene rubbers and styrene-butadiene rubbers.
Claim 22
Dependent Claim
22 words
The composition according to claim 1, wherein the diene elastomer is selected from the class consisting of butadiene rubbers and isoprene rubbers.
Claim 23
Dependent Claim
20 words
The composition according to claim 1, wherein this cis-1,4 configuration of the diene elastomer is more than 30% by weight.
Claim 24
Dependent Claim
15 words
The composition according to claim 1, wherein the α,β-ethylenically unsaturated carboxylic acid is methacrylic acid.
Claim 25
Dependent Claim
27 words
The composition according to claim 1, wherein the divalent metal compound is selected from the class consisting of divalant compounds of zinc, magnesium, calcium, iron, and cobalt.
Claim 26
Dependent Claim
25 words
The composition according to claim 1, wherein the divalent metal compound is selected from the class consisting of oxides, hydroxides, and carbonates of the metals.
Claim 27
Dependent Claim
24 words
The composition according to claim 1, wherein the divalent metal compound is selected from the class consisting of zinc oxide and activated zinc oxide.
Claim 28
Dependent Claim
22 words
The composition according to claim 1, wherein the organic perioxide is selected from the glass consisting of dicumyl peroxide and 1,1-di-t-butylperoxy-3,3,5-trimethyl cyclohexane.
Claim 29
Dependent Claim
29 words
The composition according to claim 8, wherein the carbon black is present in quantities of 5 to 30 parts by weight per 100 parts by weight of component (A).
Claim 30
Dependent Claim
12 words
The composition according to claim 1 consisting essentially of the recited components.
Claim 31
Dependent Claim
12 words
The composition according to claim 8 consisting essentially of the recited components.
Claim 32
Dependent Claim
12 words
The composition according to claim 9 consisting essentially of the recited components.
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) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |