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. 20, 2018
Filed:
Sep. 30, 2014
Huntsman Petrochemical Llc, The Woodlands, TX (US);
Ernest L Rister, Jr., Round Rock, TX (US);
Srinivasa S Godavarthy, Zachary, LA (US);
Henry Robertson, Spring, TX (US);
Robert A Grigsby, Jr., Spring, TX (US);
Robert B Moore, Leander, TX (US);
Geert Lodewijk Dries, Zonhoven, BE;
Eugene P Wiltz, Jr., The Woodlands, TX (US);
HUNTSMAN PETROCHEMICAL LLC, The Woodlands, TX (US);
Abstract
The present disclosure provides a method for reducing the aldehyde content in an amine catalyst by treating the amine catalyst with a treating agent selected from a cyclic urea substituted with at least one isocyanate reactive group, a free radical scavenger and a mixture thereof. The treated amine catalyst may then be used in the production of polyurethane materials which exhibit reduced aldehyde emissions.