EP0849321A1
Expired / Lapsed
EP
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Diene rubber composition
Assignee: Zeon Corp
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Filing: 1996-09-05
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Granted: —
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Expires: 2016-09-05
Abstract
Abstract A rubber composition comprising 100 parts by weight of a diene rubber ingredient containing an amino group-containing diene rubber, 10 to 120 parts by weight of silica, 0.1 to 15 parts by weight a vulcanizer and 0.1 to 15 parts by weight of a sulfenamide vulcanization accelerator. This rubber composition exhibits excellent heat build-up, tensile property and abrasion resistance, and is suitable for tires and others.
Inventors
- 👤 Yukio Takagishi
- 👤 Masao Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 00:48
CPC Classifications
C; C08; C08L; C08L9/00; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08K3/34; C08K3/36; C08K5/00; C08K5/36; C08K5/43; C08K5/44; C08K2201/00; C08K2201/002; C08K2201/006; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/86
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
89 words
A rubber composition comprising 100 parts by
weight of a diene rubber, 10 to 120 parts by weight of
silica, 0.1 to 15 parts by weight a vulcanizer and 0.1 to 15
parts by weight of a vulcanization accelerator,
characterized in that the diene rubber is (A) an amino
group-containing diene rubber having a Mooney viscosity
(ML 1+4 , 100°C) of 20 to 250 or a mixture of said amino
group-containing diene rubber (A) with other diene rubber
(B), and further that the vulcanization accelerator is a
sulfenamide compound.
Claim 2
Dependent Claim
52 words
The rubber composition according to claim 1,
wherein the diene rubber is a mixture comprising, based on
the weight of the sum of diene rubbers (A) and (B), 10 to
100% by weight of said amino group-containing diene rubber
(A) with 90 to 0% by weight of the other diene rubber (B).
Claim 3
Dependent Claim
34 words
The rubber composition according to claim 1 or 2,
wherein the amino group-containing diene rubber (A) contains
at least one amino group selected from primary amino groups,
secondary amino groups and tertiary amino groups.
Claim 4
Dependent Claim
49 words
The rubber composition according to any of claims
1 to 3, wherein said amino group-containing diene rubber (A)
is a copolymer of an amino group-containing vinyl monomer
and a conjugated diene monomer, or a copolymer of an amino
group-containing vinyl monomer, a diene monomer and an
aromatic vinyl monomer.
Claim 5
Dependent Claim
43 words
The rubber composition according to claim 4,
wherein said copolymers comprise 0.01 to 20% by weight of
amino groupcontaining vinyl monomer units, 40 to 99.99% by
weight of conjugated diene monomer units and 0 to 55% by
weight of aromatic vinyl monomer units.
Claim 6
Dependent Claim
22 words
The rubber composition according to claim 4 or 5,
wherein said amino group-containing vinyl monomer is a
tertiary amino group-containing vinyl monomer.
Claim 7
Dependent Claim
34 words
The rubber composition according to any of claims
1 to 6, wherein the silica has a nitrogen adsorption
specific surface area of 50 to 400 m 2 /g as measured by the
BET method.
Claim 8
Dependent Claim
24 words
The rubber composition according to any of claims
1 to 7, which further comprises carbon black as reinforcing
agent in addition to the silica.
Claim 9
Dependent Claim
34 words
The rubber composition according to claim 8,
wherein the amount of carbon black is in the range of 0.5 to
100 parts by weight based on 100 parts by weight of the
diene rubber.
Claim 10
Dependent Claim
30 words
The rubber composition according to claim 8 or 9,
wherein the carbon black has a nitrogen adsorption specific
surface area (N 2 SA) of 5 to 200 m 2 /g.
Claim 11
Dependent Claim
27 words
The rubber composition according to any of claims
8 to 10, wherein the carbon black has a dibutyl phthalate
(DBP) adsorption of 5 to 300 ml/100 g.
Claim 12
Dependent Claim
18 words
The rubber composition according to any of claims
1 to 11, which further comprises a silane coupling agent.
Claim 13
Dependent Claim
35 words
The rubber composition according to claim 12,
wherein the amount of the silane coupling agent is in the
range of 0.1 to 30 parts by weight based on 100 parts by
weight of the silica.
Claim 14
Dependent Claim
16 words
The rubber composition according to any of claims
1 to 13, wherein the vulcanizer is sulfur.
References Cited (Backward Citations)
No citation records indexed.
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