Polyarylene sulfides reduced in viscosity by aftertreatment with disulfides

US5654383A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Burkhard Kohler · Leverkusen, DE
• Klaus Kraft · Heidelberg, DE
• Klaus Reinking · Wermelskirchen, DE
• Bahman Sarabi · Krefeld, DE
• Wolfgang Ebert · Krefeld, DE

Key dates

• Filing date: Jun 30, 1994
• Grant date: Aug 5, 1997
• Expiry date: Jun 30, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M2229/05
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to polyarylene sulfides (PAS), preferably polyphenylene sulfide (PPS), reduced in viscosity by aftertreatment of the PAS formed in the production process with disulfides in the melt.