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. 14, 2023
Filed:
Sep. 17, 2019
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Cody Schoener, Lake Jackson, TX (US);
Yasmin N. Srivastava, Sugarland, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/08 (2006.01); C08G 18/12 (2006.01); C08G 18/18 (2006.01); C08G 18/06 (2006.01); E03F 5/10 (2006.01); C08G 18/48 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08G 18/14 (2013.01); C08G 18/12 (2013.01); C08G 18/485 (2013.01); C08G 2101/00 (2013.01); C08G 2110/0008 (2021.01); C08G 2110/0058 (2021.01); C08G 2110/0075 (2021.01); C08G 2110/0083 (2021.01);
Abstract
Hydrophilic polyurethane foam is made from a diphenylmethane-based quasi-prepolymer having specified isocyanate and oxyethylene contents. The foams have an unusually good capacity for retaining water even when under compressive forces. They also exhibit at most moderate swelling when saturated with water. The foam is useful as a layer of a water containment system such as a green roof or blue roof system.