Couple quick items...
1) Micropore has several patents on their process because of the "benifits of their technology" matrix etc... Highlevel information can be found on their website...
ExtendAir
2) From personal experiance I can state that I would much rather be dealing with a flooded loop with a Micropore Cartridge over a scrubber full of sorb. Alex's last comments pretty much says it all...
Dive Safe.... Mark