Rubber composition
AssigneeArlanxeo Deutschland GmbH
InventorsDavid John HARDY, Heike KLOPPENBURG, Alex LUCASSEN, Norbert STEINHAUSER, Yan ZHANG
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Abstract
The invention relates to vulcanizable rubber compositions comprising at least the following components: a) at least one functionalized polymer, b) at least one modified polybutadiene having a proportion of cis-1,4 units of >95% by weight and a proportion of 1,2-vinyl content of <1% by weight, the polybutadiene having been modified by means of sulphur chlorides after the polymerization, c) at least one silica, d) at least one further filler, e) at least one vulcanizing agent, f) at least one oil and g) optionally at least one further rubber additive.
Claims20
Vulcanizable rubber composition comprising:
- a) at least one functionalized polymer,
- b) at least one modified polybutadiene having a proportion of cis-1,4 units of >95% by weight and a 1,2-vinyl content of <1% by weight, the polybutadiene having been modified by means of sulphur chlorides after the polymerization,
- c) at least one silica,
- d) at least one further filler,
- e) at least one vulcanizing agent, and
- f) at least one oil.
Vulcanizable rubber composition comprising:
- a) 50 to 90 parts by weight of at least one functionalized solution butadiene-styrene copolymer (SSBR) (oil-free) having a glass transition temperature (Tg) between −110° C. to 20° C., based on the oil-free SSBR,
- b) 10-50 parts by weight of at least one modified neodymium-catalysed polybutadiene (NdBR) having a Mooney viscosity (ML 1+4 at 100° C.) of at least 30 MU,
- c) 50-120 parts by weight of at least one silica,
- d) 2-25 parts by weight of at least one further filler,
- e) 1-5 parts by weight of at least one vulcanizing agent, and
- f) 5-50 parts by weight of at least one oil,
- where the parts by weight figures for components c)-f) are each based on 100 parts by weight of rubber (sum total of a) and b)).
Dependencies are inferred from the claim text.