Cardanol modified epoxy polyol
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United States of America Patent
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Jun 5, 2018
Issued Date -
Sep 15, 2016
app pub date -
Nov 27, 2013
filing date -
Nov 27, 2013
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Abstract
A reaction system for forming polyurethane elastomers includes a cardanol modified epoxy polyol. In particular, the reaction system has an isocyanate-reactive component that includes the cardanol-modified epoxy polyol and an isocyanate component that includes at least one polyisocyanate. The cardanol-modified epoxy polyol is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:1 to 1:5, and the epoxy-reactive component includes a cashew nutshell liquid having a cardanol content of at least 85 wt %, based on a total weight of the cashew nutshell liquid.
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