Patent · US Active

Sulfur-crosslinkable rubberizing mixture

US9150714B2 · kind B2 · utility

10Cited by

10References

10Claims

0Family size

Assignee

Continental Reifen Deutschland GmbH · DE

Inventors

Thomas Kramer · Herford, DE
Carla Recker · Hannover, DE
Thorsten Torbruegge · Langenhagen, DE
Marc Kreye · Braunschweig, DE

Key dates

Filing date	Feb 20, 2014
Grant date	Oct 6, 2015
Priority date	—
Expiry date	Feb 20, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L9/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A sulfur-crosslinkable rubberizing mixture for strengthening elements in motor vehicle pneumatic tires comprises 70 to 100 phr (parts by weight, based on 100 parts by weight of total rubbers in the mixture) of natural rubber, up to 30 phr of at least one polybutadiene, up to 15 phr of at least one carbon black, 20 to 100 phr of at least one high-dispersibility silica, at least one silane coupling agent and a bonding system. The invention further relates to motor vehicle pneumatic tires comprising the sulfur-crosslinked rubberizing mixture. For improved resistance to cracking and growth of cracks with good adhesion and good mechanical and dynamic properties, the high-dispersibility silica has a CTAB number to ASTM D 3765 of more than 130 m2/g.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.