Process for polyurethanes from ortho-ester-blocked polyols

US4204051A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Wellner · Bensberg, DE
• Hermann Gruber · Leverkusen, DE

Key dates

• Filing date: Jun 12, 1978
• Grant date: May 20, 1980
• Expiry date: Jun 12, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/40
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the preparation of new organic compounds having blocked hydroxyl groups, which compounds are converted by the action of moisture into compounds having free hydroxyl groups, the preferred compounds obtainable by this process, and a process for the preparation of polyurethanes in which mixtures containing polyisocyanates and compounds which can be converted into polyols by hydrolysis are reacted with water.