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:
Jul. 22, 2014
Filed:
Jan. 11, 2012
Elizabeth Anna Benson-sargent, St. Paul Park, MN (US);
David R. Dow, West Lakeland, MN (US);
Grady A. Dunham, Waterville, IA (US);
Douglas E. Earl, Saint Paul, MN (US);
Jeffrey P. Lenzendorf, Eastman, WI (US);
Elizabeth Anna Benson-Sargent, St. Paul Park, MN (US);
David R. Dow, West Lakeland, MN (US);
Grady A. Dunham, Waterville, IA (US);
Douglas E. Earl, Saint Paul, MN (US);
Jeffrey P. Lenzendorf, Eastman, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Herein are disclosed an apparatus and method for reaction injection molding of polyurethane foam. In the method, a recirculation loop containing polyols along with an effective amount of water, and a recirculation loop containing isocyanates, are each partially evacuated.