Process for the production of NCO prepolymers that are stable to sedimentation, and their use

US7951896B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Hartmut Nefzger · Pulheim, DE
• Manfred Schmidt · Krefeld, DE
• James-Michael Barnes · Breitscheid, DE
• Ernst Felske · Neuss, DE
• Jens Krause · Rahden, DE

Key dates

• Filing date: Jul 3, 2006
• Grant date: May 31, 2011
• Expiry date: Oct 12, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6511
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to NCO-terminated prepolymers that are stable to sedimentation, to a process for the production of these NCO-terminated prepolymers, and to the production of polyurethanes from these NCO-terminated polymers.