Rubber composition, particularly for tire tread

US5717022A · kind A · utility

Assignee

• Semperit Reifen Aktiengesellschaft · AT

Inventors

• Otto Beckmann · Hannover, DE
• Joachim Bertrand · Seelze, DE
• Reinhard Teves · Seelze, DE

Key dates

• Filing date: Sep 6, 1996
• Grant date: Feb 10, 1998
• Expiry date: Sep 6, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T152/10495
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A rubber mixture, in particular for the tread of a tire, based on at least one polymer that is from the group of diene rubbers and respectively contains 5 to 100 parts by weight finely distributed, precipitated silicic acid, 0 to 80 parts by weight carbon black, if need be 0.2 to 10 parts by weight silane coupling agent, and 0.5 to 20 parts by weight of at least one non-aromatic, viscosity-reducing substance with regard to 100 parts by weight rubber. The viscosity-reducing, non-aromatic substance is based exclusively on the elements carbon, hydrogen, and oxygen and has a region with at least two hydroxyl groups that exist in the form of 1,2-diol or 1,3-diol, and a region of at least two chemically bonded carbon atoms, wherein neither the chemically bonded carbon atoms nor their chemically bonded neighboring carbon atoms are substituted with oxygen.