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:
Sep. 09, 2014
Filed:
Jan. 28, 2013
Applicant:
Optmed, Inc., New York, NY (US);
Inventors:
Francis McConville, Worcester, MA (US);
John Gregory Reid, Groton, MA (US);
Murugappa Vedachalam, Raynham, MA (US);
Assignee:
OptMed, Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 253/30 (2006.01); C07C 67/00 (2006.01); B01D 15/00 (2006.01); C07C 67/56 (2006.01); C10G 70/04 (2006.01); C07C 253/34 (2006.01); C07C 231/24 (2006.01);
U.S. Cl.
CPC ...
C07C 253/30 (2013.01); C07C 67/00 (2013.01); B01D 15/00 (2013.01); C07C 67/56 (2013.01); C10G 70/046 (2013.01); C07C 253/34 (2013.01); C07C 231/24 (2013.01);
Abstract
An improvement in the production of 1,1-disubstituted ethylenes is attained by contacting a 1,1-disubstituted ethylene with alumina and separating the alumina to obtain a 1,1-disubstituted ethylene with a good combination of cost, purity, shelf life and cure rate.