POLYURETHANE TWO-COMPONENT OR MULTI-COMPONENT SYSTEMS HAVING A LATENT THICKENING TENDENCY
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United States of America Patent
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app pub date -
Jun 23, 2015
filing date -
Jun 24, 2014
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The invention relates to a two-component or multi-component system comprising: at least one polyol component 1 that has i) at least one polyol, ii) at least one inorganic thickener (a1), and iii) at least one wetting and dispersing agent (a2) which inhibits the thickening effect of said inorganic thickener (a1); as well as at least one polyisocyanate component 2 that comprises i) at least one polyisocyanate; where (A) either the polyisocyanate component 2 comprises at least one component (b1) that at least partially cancels the inhibition of the thickening effect of the inorganic thickener (a1); and/or (B) at least one isocyanate-free component 3 comprises at least one component (b1) that at least partially cancels the inhibition of the thickening effect of the inorganic thickener (a1); said wetting and dispersing agent (a2) being non-reactive to the at least one polyol, and the polyisocyanate component 2 being reactive to the polyol component 1. The invention also relates to a substrate coated with a system according to the invention, and to the use of at least one inorganic thickener (a1) and at least one wetting and dispersing agent (a2) which inhibits the thickening effect of said inorganic thickener (a1), in order to provide a latent thickening effect for a composition that contains at least one polyol.
First Claim
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