The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Jun. 12, 2020
John I. Nanos, Ann Arbor, MI (US);
John I. Nanos, Ann Arbor, MI (US);
BIONANOFOAM LLC, Ann Arbor, MI (US);
Abstract
A crosslinked biobased hydrophilic foam comprising a reaction product of: a cleaned biobased polyoxyalkylene glycol polyol with an ethylene oxide content of at least 40 mole percent, constituting 31.80 to 67.95 percent biogenic carbon content by weight, constituting less than 15 ppm combined sodium and potassium metals, and comprising less than 0.5% water by weight; an isocyanate, wherein the isocyanate and the cleaned biobased polyoxyalkylene glycol polyol are premixed to create a prepolymer mixture with the cleaned biobased polyoxyalkylene glycol polyol of the prepolymer mixture; and water, wherein the water is admixed with the prepolymer mixture to yield the crosslinked biobased hydrophilic foam.