Polybutadienes with a reduced solution viscosity/mooney viscosity ratio

US6576731B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Norbert Steinhauser · Monheim, DE
• Werner Obrecht · Moers, DE

Key dates

• Filing date: Jul 23, 2001
• Grant date: Jun 10, 2003
• Expiry date: Oct 23, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F36/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of polybutadienes with a reduced solution viscosity/Mooney viscosity ratio by using polydienyl compounds, the polybutadienes which can be prepared in this process, the use of the polybutadienes according to the present invention for the preparation of rubber mixtures, the use of the rubber mixtures for the production of all types of shaped articles, and the compound dimethyldi-2,4-pentadienyl-(E,E)-silane as an intermediate product.