Method for Producing a Two-Component Polyurethane Composition Comprising One or More Additives Soluble in Polar Solvents
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United States of America Patent
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Sep 3, 2015
app pub date -
May 8, 2013
filing date -
May 8, 2012
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Abstract
A method for producing a two-component polyurethane composition comprising at least one additive soluble in polar solvents, in particular a biocide, comprising the following steps: a) providing at least one polyol; b) adding at least one solution of the polar solvent comprising at least one additive soluble in polar solvents, in particular a biocide, and at least one carrier material for the additive to the polyol from step a); and c) providing, in accordance with the requirements, at least one isocyanate for adding to the mixture from step b). The method has the advantage that additives can be incorporated into a two-component polyurethane composition without agglomerating or precipitating, without side reactions, and without an additional drying step.
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