DuPont Archives – The Green Optimistic green tech news, since 2008 Tue, 26 Mar 2013 19:05:29 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 VW Developing CO2 Air Conditioning System, Rejects EU Law for 2017 https://www.greenoptimistic.com/volkswagen-co2-air-conditioning-20130326/ https://www.greenoptimistic.com/volkswagen-co2-air-conditioning-20130326/#comments Tue, 26 Mar 2013 19:05:28 +0000 https://www.greenoptimistic.com/?p=35327 A new refrigerant developed by Honeywell and Dupont, HFO-1234yf, will be required by law to replace R-134a, but Volkswagen is rejecting this and developing its own carbon dioxide air conditioning system. The new refrigerant, HFO-1234yf, is supposed to reduce greenhouse gas emissions by something like 99.7%. In spite of a new law in the EU […]

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]]> https://www.greenoptimistic.com/volkswagen-co2-air-conditioning-20130326/feed/ 2 35327 Energain: Specially Designed Plastic, Inserted Into Batteries, Improving Everything https://www.greenoptimistic.com/dupont-energain-separators-20100803/ https://www.greenoptimistic.com/dupont-energain-separators-20100803/#respond Tue, 03 Aug 2010 20:27:54 +0000 https://www.greenoptimistic.com/?p=8981 DuPont, a science-based products and services company has created a new polymer-based separator for lithium-ion batteries that will improve their life and power and make them perfectly suited for electric and hybrid vehicles.

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