Sulfur-containing cycloaliphatic compound, process for its preparation, filled sulfur-vulcanizable elastomer composition containing same and articles fabricated therefrom

US8334340B2 · kind B2 · utility

Assignee

• Momentive Performance Materials GmbH · US

Inventors

• Michael Joseph O'Brien · Clifton Park, US
• Robert James Perry · Niskayuna, US
• Richard W. Cruse · Yorktown Heights, US
• William Michael York · Concord, US
• Carla Recker · Hannover, DE
• Thomas Kramer · Herford, DE
• Katharina Herzog · Harsum, DE

Key dates

• Filing date: Oct 30, 2008
• Grant date: Dec 18, 2012
• Expiry date: Jan 7, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2312/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A sulfur-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula:G[—CaH2a—S—S(═O)b—R]n wherein G is a saturated, monocyclic aliphatic group of valence n containing from 5 to 12 carbon atoms and optionally containing at least one halogen or a saturated monocyclic silicone [RSiO—]n[R2SiO—]p group of valence n; each R independently is a monovalent hydrocarbon of up to 20 carbon atoms; each occurrence of subscripts a and b independently is an integer wherein a is 2 to 6 and b is 1 or 2; n is an integer of from 3 to 6; and p is an integer of from 0 to 3.