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:
Jan. 14, 2025
Filed:
Mar. 14, 2019
Aleo Bme, Inc., State College, PA (US);
Chao Liu, State College, PA (US);
John J Round, State College, PA (US);
ALEO BME, INC., State College, PA (US);
Abstract
In some embodiments, a film forming composition described herein comprises an aliphatic polyisocyanate; an aliphatic polyfunctional nucleophile; a chain extender; a first solvent; and a second solvent, wherein an evaporation rate of the first solvent and an evaporation rate of the second solvent are within 150% of each other, the percentage being based on the larger value. In some embodiments, a method of forming a film on a substrate is described herein, the method comprising combining a polyisocyanate with a polyol to form a polyurethane pre-polymer; combining the polyurethane pre-polymer with a chain extender to form a polymer; and applying the polymer to the substrate.