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Elkem As patents


Recent patent applications related to Elkem As. Elkem As is listed as an Agent/Assignee. Note: Elkem As may have other listings under different names/spellings. We're not affiliated with Elkem As, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "E" | Elkem As-related inventors


Nanofibrillated cellulose for use in fluids for enhanced oil recovery

The present invention relates to nanofibrillated cellulose (nfc) for use as viscosity modifier in fluids for enhanced oil recovery. The fluids contain nfc with an aspect ratio of less than 1000 where the nanofibrils have a diameter between 5 and 50 nanometer and a length of less than 10 μm.. ... Elkem As

Nanofibrillated cellulose for use in fluids for primary oil recovery

The present invention relates to nanofibrillated cellulose (nfc) for use in drilling fluids, fracturing fluids, spacer fluids etc. The fluids contain nfc as a viscosifier with an aspect ratio of more than 100 and where the nanofibrils have a diameter between 5 and 100 nanometer and a length of more than 1 μm.. ... Elkem As

Silicon-carbon composite anode for lithium-ion batteries

The present invention describes a silicon-carbon composite anode tor lithium-ion batteries comprising 40-80 weight % of silicon particles, 10-45 weight % of carbon, consisting of carbon black and graphite, and a combination of carboxy-methyl cellulose (cmc) and styrene butadiene rubber (sb.r) as a binder. The invention also comprises a method of manufacturing the anode and a li-ion battery comprising the si—c composite anode according to the present invention.. ... Elkem As








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