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:
Jun. 08, 2021
Filed:
Apr. 03, 2019
Applicant:
Dow Silicones Corporation, Midland, MI (US);
Inventors:
Nisaraporn Suthiwangcharoen, Midland, MI (US);
Kimmai Nguyen, Midland, MI (US);
Hannah Wedge, Midland, MI (US);
Assignee:
Dow Silicones Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/08 (2006.01); C08G 77/16 (2006.01); C08G 77/388 (2006.01); C08K 5/544 (2006.01); C08G 77/26 (2006.01);
U.S. Cl.
CPC ...
C08G 77/08 (2013.01); C08G 77/16 (2013.01); C08G 77/388 (2013.01); C08K 5/544 (2013.01); C08G 77/26 (2013.01);
Abstract
A method for preparing an amino-functional polydiorganosiloxane employs a removable catalyst. The method differs from previous methods in the selection of catalyst, order of addition of catalyst with respect to other starting materials, and catalyst removal.