Caoutchouc mixture for the manufacture of rubber products with low-temperature application capability, resistance to oil, low crystallization tendency and high dynamic stressability

US5637645A · kind A · utility

Assignee

• Phoenix, LLC · DE

Inventors

• Manfred Klerk · Hamburg, DE
• Gerhard Merkmann · Gotha, DE
• Karl-Heinz Krause · Chemnitz, DE

Key dates

• Filing date: May 23, 1994
• Grant date: Jun 10, 1997
• Expiry date: May 23, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L7/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a caoutchouc mixture for the manufacture of rubber products with low-temperature application capability, resistance to oil, low crystallization tendency, and high dynamic stressability, on the basis of natural caoutchouc, in particular viscosity-stabilized natural caoutchouc, and the usual mixture ingredients. The essence of said invention lies in that the caoutchouc mixture additionally contains 5 to 30% by weight 1,4-polybutadiene with a high cis-proportion, and 5 to 30% by weight epoxidized natural caoutchouc. An additional mixture variation is introduced.