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. 18, 2017
Filed:
Aug. 16, 2014
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Jean-Paul Masy, Destelbergen, BE;
Myriam Linke, Terneuzen, NL;
David A. Babb, Lake Jackson, TX (US);
John W. Weston, Sugarland, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/26 (2006.01); C08G 65/12 (2006.01); C08G 65/00 (2006.01);
U.S. Cl.
CPC ...
C08G 65/12 (2013.01); C08G 65/2606 (2013.01); C08G 65/2609 (2013.01); C08G 65/2663 (2013.01); C08G 65/2696 (2013.01);
Abstract
1,2-butylene oxide is homopolymerized or randomly copolymerized in the presence of a double metal cyanide catalyst such as a zinc hexacyanocobaltate catalyst complex. The polymers unexpectedly contain significant amounts of monofunctional impurities, which can be partially controlled through selection of polymerization conditions.