BIO-BASED AND HYDROPHILIC POLYURETHANE PREPOLYMER AND FOAM MADE THEREFROM

USPTO Patent Application US 2018/0022855 A1
Application Date: Jan. 25th, 2018

ABSTRACT

A bio-based polyurethane foam manufactured by a process that involves cleaning a bio-based polyoxyalkylene glycol polyol by a method comprising the steps of adding an adsorbent to the bio-based polyoxyalkylene...
Application Number:
15/655,854
International Classification:
C08G 18/12 (20060101); C08G 65/30 (20060101); C08G 18/76 (20060101); C08G 18/48 (20060101); C08G 18/66 (20060101); C08G 18/08 (20060101); C08G 18/32 (20060101)
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CLAIMS

I claim:

1. A crosslinked biobased hydrophilic foam having a three-dimensional network comprising the reaction product of isocyanate capped biobased polyoxyalkylene biopolyol mixture consisting of: a. an isocyanate capped hydrophilic and biobased polyoxyethylene diol, said diol having an ethylene oxide content of at least 40 mole percent; andb. an isocyanate capped biobased polyol...

DESCRIPTION

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of U.S. Provisional Application 62/365,178 filed on Jul. 21, 2016, which is herein incorporated by reference in its entirety.
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