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US 10,844,161 B2Granted
Silane-functional polymeric polyurethanes
AssigneeCovestro Deutschland AG
InventorHans-Josef Laas
Life of this patent
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Abstract
The invention relates to a method for producing polyurethanes containing silane groups, to products that can be obtained by means of said method, and to the use of said products for producing cross-linkable binders, in particular for coatings, sealant raw materials, or glue raw materials.
Claims15
A process for preparing silane-containing polyurethanes comprising the reaction of
- A) at least one polymeric polyol having an acid number determined according to DIN EN ISO 2114:2002-06 of 0.01 to 30.0 mg KOH/g based on the solids content with
- B) at least one compound which has at least one carboxyl-reactive group and contains at least one epoxy group, carbodiimide group and/or 2-oxazoline group to obtain a reaction product and the reaction of the reaction product with
- C) at least one alkoxysilane-functional isocyanate.
Dependencies are inferred from the claim text.