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. 19, 2024
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);
Viraj K. Shah, Freeport, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 75/04 (2006.01); B32B 5/12 (2006.01); B32B 5/18 (2006.01); B32B 5/24 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); E04D 11/00 (2006.01); E04D 11/02 (2006.01);
U.S. Cl.
CPC ...
C08L 75/04 (2013.01); B32B 5/12 (2013.01); B32B 5/18 (2013.01); B32B 5/245 (2013.01); C08J 9/0061 (2013.01); C08J 9/125 (2013.01); E04D 11/002 (2013.01); E04D 11/02 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0253 (2013.01); B32B 2266/0278 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/728 (2013.01); B32B 2419/06 (2013.01); C08J 2203/10 (2013.01); C08J 2323/08 (2013.01); C08J 2375/04 (2013.01); C08L 2203/14 (2013.01); C08L 2205/14 (2013.01);
Abstract
Hydrophilic composite structures are made by impregnating a 3DL structure with a polyurethane foam formulation and curing the formulation to produce a foam that occupies the spaces in the 3DL structure. The composite structures 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.