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:
Feb. 26, 2008
Filed:
May. 21, 2004
Alan J. Russell, Wexford, PA (US);
Geraldine F. Drevon, Gand, BE;
Douglas A. Wicks, Hattiesburg, MS (US);
Karsten Danielmeier, Solingen-Burg, DE;
Alan J. Russell, Wexford, PA (US);
Geraldine F. Drevon, Gand, BE;
Douglas A. Wicks, Hattiesburg, MS (US);
Karsten Danielmeier, Solingen-Burg, DE;
University of Pittsburgh, Pittsburgh, PA (US);
Bayer Material Science, LLC, Pittsburgh, PA (US);
Abstract
A method of irreversibly immobilizing an enzyme in a polyurethane and an enzyme-containing polyurethane having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethanes in the presence of enzyme has enabled the irreversible attachment of the enzyme to the polymeric matrix. The distribution of immobilized enzyme as well as activity retention are homogeneous within the polyurethane. Decreasing ECC hydrophobicity, via the use of a less hydrophobic polyisocyanate prepolymer during polymerization, significantly enhanced the intrinsic activity of the ECC.