Patent application number | Description | Published |
20090123827 | Multi-layer, microporous membrane, battery separator and battery - The invention relates to a multi-layer, microporous polyolefin membrane having appropriate permeability, pin puncture strength, shutdown temperature, shutdown speed, meltdown temperature, and thickness uniformity. The invention also relates to a battery separator formed by such multi-layer, microporous membrane, and a battery comprising such a separator. Another aspect of the invention relates to a method for making the multi-layer, microporous polyolefin membrane, a method for making a battery using such a membrane as a separator, and a method for using such a battery. | 05-14-2009 |
20090123828 | Multi-Layer, Microporous Membrane, Battery Separator And Battery - The invention relates to a multi-layer, microporous membrane having appropriate permeability, pin puncture strength, shutdown temperature, shutdown speed, meltdown temperature, and thickness uniformity. The invention also relates to a battery separator formed by such multi-layer, microporous membrane, and a battery comprising such a separator. Another aspect of the invention relates to a method for making the multi-layer, microporous polyolefin membrane, a method for making a battery using such a membrane as a separator, and a method for using such a battery. | 05-14-2009 |
20090186279 | Polymeric Material And Its Manufacture And Use - Disclosed herein is a polymer composition, its manufacture and use, said composition may comprise greater than about 90 mole % propylene monomer, and having a unique combination of properties, including one or more of the following: a heat of fusion of more than about 108 J/g, a melting point of 165° C. or higher, a Melt Flow Rate so low that it is essentially not measurable and a molecular weight of greater than about 1.5×10 | 07-23-2009 |
20110086276 | Polymeric Material And Its Manufacture And Use - Disclosed herein is a polymer composition, its manufacture and use, said composition may comprise greater than about 90 mole % propylene monomer, and having a unique combination of properties, including one or more of the following: a heat of fusion of more than about 108 J/g, a melting point of 165° C. or higher, a Melt Flow Rate so low that it is essentially not measurable and a molecular weight of greater than about 1.5×10 | 04-14-2011 |
20130034777 | MICROPOROUS MEMBRANE, BATTERY SEPARATOR AND BATTERY - A method of manufacturing a microporous polymeric membrane including: heat-setting the microporous polymeric membrane in at least a first stage and a final stage, the first stage being upstream of the final stage and a temperature of the first stage being at least 15° C. cooler than a temperature of the final stage. | 02-07-2013 |