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:
Mar. 07, 2017
Filed:
Jul. 23, 2013
Applicant:
The University of Akron, Akron, OH (US);
Inventors:
Assignee:
The University of Akron, Akron, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/38 (2006.01); C08K 9/04 (2006.01); C08G 18/48 (2006.01); C08G 18/62 (2006.01); C08G 18/73 (2006.01); C08G 18/83 (2006.01); C08G 18/50 (2006.01); C08G 18/10 (2006.01); C08G 18/12 (2006.01);
U.S. Cl.
CPC ...
C08G 18/3895 (2013.01); C08G 18/10 (2013.01); C08G 18/12 (2013.01); C08G 18/4825 (2013.01); C08G 18/4854 (2013.01); C08G 18/5024 (2013.01); C08G 18/6204 (2013.01); C08G 18/73 (2013.01); C08G 18/831 (2013.01); C08K 9/04 (2013.01);
Abstract
The present invention generally relates to polyurethanes and polyurethane prepolymers having improved mechanical properties over ordinarily produced polyurethanes or polyurethane prepolymers. Such polyurethanes and prepolymers include very small amounts of organically-modified layered clays, and more specifically, less than 1 weight percent, based upon the total polymer composition, of a layered clay exfoliated with organic quaternary ammonium salts having alkyl substituents, wherein at least one of the alkyl substituents carries an —NH2 group.