Foams and Films Using Specialized Lignin

USPTO Patent Application US 2018/0079871 A1
Application Date: Mar. 22nd, 2018


This disclosure provides polymer and film derivatives of specialized clean lignin with improved properties. This disclosure also provides methods of making polymer and film derivatives of specialized clean lignin with...
Application Number:
International Classification:
C08H 7/00 (20060101); C08J 5/18 (20060101); C08J 9/14 (20060101)
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What is claimed is:

1. A polyurethane product comprising a polymerization product of an isocyanate and polyols that comprise a lignin product; wherein the polyurethane product has a higher compressive strength than polyurethane made under same conditions except without the lignin product; and wherein the lignin product is a solid residue from a pretreatment...



This application claims the benefit of U.S. Provisional Application No. 62/396,740, filed Sep. 19, 2016, which application is incorporated herein by reference in its entirety.
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