logo

For the Inventor, By the Inventor

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.:

US 10676568 B1

PDFFull Text
Date of Patent:
Jun. 09, 2020

Filed:

Jun. 26, 2018

Silicone-polyether copolymer, method of preparing same, and sealant comprising same

Applicants:

Dow Silicones Corporation, Midland, MI (US);

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Martin Grasmann, Midland, MI (US);

David Hagan, Midland, MI (US);

Brian Harkness, Midland, MI (US);

William H. Heath, Lake Jackson, TX (US);

Stephen Michael Hlinka, II, Midland, MI (US);

Eric Joffre, Midland, MI (US);

William Johnson, Midland, MI (US);

Bindu Krishnan, Lake Jackson, TX (US);

Jeanette Young, Midland, MI (US);

Bizhong Zhu, Midland, MI (US);

Assignees:

Dow Global Technologies LLC, Midland, MI (US);

Dow Silicones Corporation, Auburn, MI (US);

Attorney:

Warner Norcross + Judd LLP

Primary Examiner:

Marc S Zimmer

Int. Cl.
CPC ...
C08G 65/336 (2006.01); C08L 71/02 (2006.01); C08G 77/12 (2006.01); C08L 83/12 (2006.01); C08G 77/18 (2006.01); C08G 77/20 (2006.01); B01J 31/12 (2006.01); C08K 5/00 (2006.01); C08K 5/5415 (2006.01); C08K 5/12 (2006.01); C08G 65/34 (2006.01); C09D 171/02 (2006.01);
U.S. Cl.
CPC ...
C08G 65/336 (2013.01); B01J 31/124 (2013.01); C08G 65/34 (2013.01); C08G 77/12 (2013.01); C08G 77/18 (2013.01); C08G 77/20 (2013.01); C08K 5/0016 (2013.01); C08K 5/0025 (2013.01); C08K 5/12 (2013.01); C08K 5/5415 (2013.01); C08L 71/02 (2013.01); C08L 83/12 (2013.01); C09D 171/02 (2013.01); B01J 2531/828 (2013.01); C08G 2190/00 (2013.01);
Abstract

A silicone-polyether copolymer has the formula X—Y, where each X is an independently selected silicone moiety having a particular structure, Y is a linear or branched polyether moiety, and subscript g is on average more than 1. A method of preparing the silicone-polyether copolymer comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation-reaction catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.

Find Patent Forward Citations

Loading…