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:
Mar. 22, 2005
Filed:
Feb. 21, 2003
Nathan L. Anderson, Charleston, WV (US);
Karl W. Haider, Hurricane, WV (US);
Keith J. Headley, Paden City, WV (US);
Kerry A. Ingold, Pittsburgh, PA (US);
Herman P. Doerge, Moon Township, PA (US);
Nathan L. Anderson, Charleston, WV (US);
Karl W. Haider, Hurricane, WV (US);
Keith J. Headley, Paden City, WV (US);
Kerry A. Ingold, Pittsburgh, PA (US);
Herman P. Doerge, Moon Township, PA (US);
Bayer Polymers LLC, Pittsburgh, PA (US);
Abstract
Clear, amine-initiated polyether polyols are made by epoxidizing an amine in the presence of an alkali metal hydroxide catalyst. By reducing the amount of catalyst used during the polyol synthesis and by adding the catalyst after between 5 and 30% of the total amount of at least one alkylene oxide has been added, after lactic acid neutralization, gives a short chain polyol that has foam processing characteristics similar to the conventional sulfuric acid neutralized polyol. The polyols produced in this manner are particularly useful for the production of polyurethane and polyisocyanurate foams.