Isocyanate adduct diols

US4211699A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans D. Winkelmann · Charleston, US
• Karlheinz Wolf · Leverkusen, DE
• Harald Oertel · Odenthal, DE
• Norbert Weimann · Leverkusen, DE

Key dates

• Filing date: Feb 21, 1978
• Grant date: Jul 8, 1980
• Expiry date: Feb 21, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D223/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Isocyanate adduct diols of the formula EQU M--CO--NH--D'--NH--CO--A in which M is derived from an amino diol or a hydrazino diol, D' represents the divalent radical of an organic diisocyanate, and A is an isocyanate masking group; and a process for their production.