Process for the production of oligourethanes containing mercapto groups and their use as binders for coating and sealing compositions hardenable by oxidation and as additives for epoxide resins

US4602071A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Wellner · Bensberg, DE
• Josef Pedain · Cologne, DE
• Hermann Gruber · Leverkusen, DE

Key dates

• Filing date: May 19, 1982
• Grant date: Jul 22, 1986
• Expiry date: May 19, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2200/0647
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the production of oligourethanes containing terminal mercapto groups by reacting 1-isocyanatomethyl-1,3,3-trimethyl-5-isocyanatocyclohexane with substoichiometric quantities of relatively high molecular weight polyether polyols and mercapto ethanol and to the use of the oligourethanes obtainable in this way as binders for coating and sealing compositions hardenable by oxidation and as additives for epoxide resins.