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:
Sep. 15, 2015
Filed:
Jun. 12, 2014
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Elizabeth A. Sargent, St. Paul Park, MN (US);
David R. Dow, West Lakeland, MN (US);
Grady A Dunham, Waterville, IA (US);
Douglas E. Earl, St. Paul, MN (US);
Jeffrey P. Lenzendorf, Eastman, WI (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 3/00 (2006.01); B24D 11/00 (2006.01); B24D 18/00 (2006.01); C09K 3/14 (2006.01); C08G 18/06 (2006.01); B29B 7/76 (2006.01); B29B 7/84 (2006.01); B29C 44/34 (2006.01); B29C 67/24 (2006.01); C08G 18/66 (2006.01); C08G 18/76 (2006.01); B29B 7/74 (2006.01); B24D 3/32 (2006.01); B24D 11/02 (2006.01); B29K 75/00 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08G 18/06 (2013.01); B24D 3/32 (2013.01); B24D 11/02 (2013.01); B29B 7/7404 (2013.01); B29B 7/7433 (2013.01); B29B 7/7615 (2013.01); B29B 7/84 (2013.01); B29C 44/3442 (2013.01); B29C 67/246 (2013.01); C08G 18/6607 (2013.01); C08G 18/7664 (2013.01); B29K 2075/00 (2013.01); C08G 2101/0058 (2013.01); C08G 2101/0083 (2013.01);
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.