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:
Jul. 01, 2014
Filed:
Dec. 22, 2010
Applicants:
David S. Hays, Woodbury, MN (US);
Richard G. Hansen, Mahtomedi, MN (US);
Inventors:
David S. Hays, Woodbury, MN (US);
Richard G. Hansen, Mahtomedi, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/452 (2006.01); C08G 77/26 (2006.01); C07C 69/34 (2006.01); C07C 55/06 (2006.01);
U.S. Cl.
CPC ...
C08G 77/452 (2013.01); C07C 69/34 (2013.01);
Abstract
A method of preparing polydiorganosiloxane polyoxamide copolymers is described. These copolymers have at least one polydiorganosiloxane segment and at least two aminooxalylamino groups. The method can be used in the presence or absence of a solvent. Intermediates involved in the preparation of the copolymers are also described.