E.I.DU PONT NEMOURS AND COMPANY
E.I.DU PONT NEMOURS AND COMPANY Patent applications | ||
Patent application number | Title | Published |
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20100305371 | PRODUCTION PROCESSES FOR MAKING 1,1,1,2,2,3-HEXAFLUOROPROPANE - A process for making HFC-236cb is disclosed. The process comprises reacting TFE with HFC-32 in the presence of at least one co-product and a suitable catalyst to produce a product mixture comprising HFC-236cb, wherein the total amount of the at least one co-product is at least 10 ppmv based on the total amount of the tetrafluoroethylene, the difluoromethane and the at least one co-product. | 12-02-2010 |
20090294741 | SILVER COMPOSITION FOR MICRO-DEPOSITION DIRECT WRITING SILVER CONDUCTOR LINES ON PHOTOVOLTAIC WAFERS - Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device. | 12-03-2009 |