Method of preparing casting and coating compositions using polyols derived from high oleic acid content fatty acid mixtures
AssigneeCognis Deutschland GmbH & Co. KG
InventorsANDREAS HEIDBREDER, ROLAND GRUETZMACHER, ULRICH NAGORNY, ALFRED WESTFECHTEL
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Abstract
Polyols which can be obtained by making epoxidized fatty acid esters of monofunctional C 1-8 alcohols react with aliphatic alcohols having a functionality ranging from 2-10. Fatty acid mixtures with mainly 18 carbon atoms represent the fatty acid component in the epoxidized fatty acid esters. The oleic acid content of the fatty acid mixtures is at least 80 wt %. The polyols are suitable for use in the production of isocyanate casting resins and coating compounds with enhanced colour stability.
Claims5
The use of polyols obtainable by reacting epoxidized fatty acid esters of monofunctional C1-8 alcohols with aliphatic alcohols having a functionality of 2 to 10, the fatty acid component of the epoxidized fatty acid esters being based on fatty acid mixtures essentially containing 18 carbon atoms and the oleic acid content of these fatty acid mixtures, based on the fatty acid mixture as a whole, being at least 80% by weight, for the production of isocyanate casting resins and coating compositions.
Isocyanate casting resins and coating compositions obtainable by reacting polyols obtainable by reacting epoxidized fatty acid esters of monofunctional C1-8 alcohols with aliphatic alcohols having a functionality of 2 to 10, the fatty acid component of the epoxidized fatty acid esters being based on fatty acid mixtures essentially containing 18 carbon atoms and the oleic acid content of these fatty acid mixtures, based on the fatty acid mixture as a whole, being at least 80% by weight, with isocyanates having a functionality of 2 to 4.
Dependencies are inferred from the claim text.