Thixotroping agent

US6649706B1 · kind B1 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Ingrid Heid · Hachenburg, DE
• Helmut Kleine Beckmann · Ostbevern, DE
• Ulrike Rockrath · Senden, DE
• Hubert Baumgart · Hachenburg, DE

Key dates

• Filing date: Nov 14, 2001
• Grant date: Nov 18, 2003
• Expiry date: Nov 14, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6229
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thixotroping agent comprising a reaction product of a isocyanto-containing compound and an amine. The isocyanto-containing compound comprises at least one of Ia) at least one isocyanate with at least one diisocyanate structural unit that has an unsaturated/aromatic or non-aromatic ring structure with 5-10 ring atoms and two isocyanate groups that are bound to the ring structure; Ib) at least one oligomer of the isocyanate Ia) with 2 to 10 isocyanate units; and Ic) at least one partially blocked isocyanate Ia) and/or at least one partially blocked oligomer Ib).