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1. (WO2018033315) RUBBER BLEND, SULFUR-CROSSLINKABLE RUBBER MIXTURE, AND VEHICLE TIRE

Pub. No.:    WO/2018/033315    International Application No.:    PCT/EP2017/067952
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Tue Jul 18 01:59:59 CEST 2017
IPC: C08C 19/25
C08C 19/44
C08L 9/00
C08L 9/06
B60C 1/00
Applicants: CONTINENTAL REIFEN DEUTSCHLAND GMBH
Inventors: RECKER, Carla
SÁ, Catarina
WEHMING-BOMKAMP, Kathrin
PAVON SIERRA, Viktoria
MÜLLER, Norbert
RADKE, Michael
Title: RUBBER BLEND, SULFUR-CROSSLINKABLE RUBBER MIXTURE, AND VEHICLE TIRE
Abstract:
The invention relates to a rubber blend, to a sulfur-crosslinkable rubber mixture containing the rubber blend, and to a vehicle tire containing such a rubber mixture. The rubber blend contains: at least one high-molecular-weight, solution-polymerized diene polymer A and at least one low-molecular-weight, solution-polymerized polymer B, wherein at least one of the polymers A or B is functionalized at the chain end and/or along the polymer chain and/or in a coupling center with at least one group selected from epoxy groups, hydroxy groups, carboxy groups, silane-sulfide groups, amino groups, siloxane groups, organosilicon groups, phthalocyanine groups, and from alkoxysilyl groups containing amino groups and wherein the rubber blend has 35 to 100 phr (with respect to the at least one high-molecular-weight, solution-polymerized diene polymer A), preferably 35 to 70 phr, of the at least one low-molecular-weight, solution-polymerized polymer B.