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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
The present invention is premised upon -m improved photovoltaic building sheathing member ("PV device"), more particularly to a flexible low modulus photovoltaic building sheathing member, the member comprising: a flexible photovoltaic cell assembly, a body portion comprised of a body material and connected to a; peripheral edge segment of the photovoltaic cell assembly, wherein the body portion has a cross-sectional area of at least 35 mm.sup.2 within 1 cm on at least 95 percent of points along the peripheral edge segment: wherein the body material comprises a composition having a modulus of 5 to 200 MPa between a temperature of -40 to C., with a coefficient of thermal expansion (GTE) below 100.times.10.sup.-6/.degree. C., and the body portion exhibiting a warpage value of less than 15 mm.
Feng, Jie (Midland, MI), Kauffmann, Keith L. (Ypsilanti, MI), Yang, Kwanho (Midland, MI), Liu, Hua (Midland, MI), Zawisza, Jeffrey D. (Midland, MI), Lopez, Leonardo C. (Midland, MI)
Dow Global Technologies LLC (Midland MI)
14/ 355,667
November 9, 2012
[0001] This invention was made with U.S. Government support under contract DE-FC36-07G01754 awarded by the Department of Energy. The U.S. Government has certain rights in this invention.