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:
Jan. 26, 2021
Filed:
Sep. 12, 2017
Applicant:
Hexion Inc., Columbus, OH (US);
Inventors:
David Flosser, Missouri City, TX (US);
Jerry R. Hite, Sugar Land, TX (US);
Larry Steven Corley, Houston, TX (US);
Bedri Erdem, Stafford, TX (US);
Assignee:
HEXION INC., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/02 (2006.01); C08L 63/00 (2006.01); C08L 63/02 (2006.01); C09D 163/00 (2006.01); C09D 163/02 (2006.01); C09J 163/00 (2006.01); C09J 163/02 (2006.01); C08G 59/24 (2006.01); C08G 59/68 (2006.01); C08G 59/62 (2006.01); C08G 59/06 (2006.01);
U.S. Cl.
CPC ...
C08G 59/686 (2013.01); C08G 59/022 (2013.01); C08G 59/066 (2013.01); C08G 59/245 (2013.01); C08G 59/621 (2013.01);
Abstract
An epoxy oligomerization catalyst can be employed to prepare an epoxy resin employing a method including admixing a first epoxy resin having a first epoxy equivalent weight of from about 100 to about 600 with a diphenolic compound, and a catalyst, thereby forming a second epoxy resin having a second epoxy equivalent weight of from about 200 to about 10,000; wherein the catalyst is a guanidinium catalyst. The second equivalent weight is greater than the first equivalent weight.