Dow Global Technolgoies LLC

Cody Schoener

Yasmin N Srivastava

Viraj Shah

Gregory S Raymond

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.

Hydrophilic composite

Water containment modules for green and blue roof installations are disclosed. The modules include a water retaining module having a porous scaffold filled with a flexible hydrophilic foam, and a bottommost drainage layer having supports that define channels through which a fluid can flow away from the module. The module in some embodiment further includes an uppermost porous horticultural growth media layer that including a particulate filler embedded in a porous hydrophilic polymer foam.

Modular water retaining tiles and green blue roof structures containing an assembly of such tiles

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.

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Lake Jackson, TX, United States of America

Cody Schoener