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:
Nov. 12, 2019
Filed:
Jul. 31, 2017
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventor:
Robert E. Hefner, Jr., Rosharon, TX (US);
Assignee:
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/02 (2006.01); B01D 71/60 (2006.01); C08J 3/24 (2006.01);
U.S. Cl.
CPC ...
C08G 73/0273 (2013.01); B01D 71/60 (2013.01); C08J 3/24 (2013.01);
Abstract
A polymer comprising a sub-unit or repeating unit including a spirobisindane moiety and Troger's base moiety linked together by way of a linking group (L) wherein the linking group (L) is represented by Formula III: wherein Z and Z' are independently selected from an ether and ester functional group.