This unusual abstract contains another mention of Akzo's original invention of the lyocell fibre process and mentions the fact that Courtaulds operated lyocell under licence. Lenzing had licenced the technology first in 1987 and Courtaulds followed, for reasons unclear in view of the ~5 year lead they had in the technology, in 1990. Akzo had abandoned staple but were developing a filament version of the technology called "Newcell". Courtaulds and Akzo collaborated in the further development of "Newcell" and maybe the licencing was part of this collaborative deal.
Courtaulds
(USA and UK) is using N-methyl morpholine oxide (NMMO) as a solvent in the
production of its cellulose-based Tencel staple fibre. This process is
environmentally-friendly and creates virtually no pollution. This method was
initially patented by Akzo and Courtaulds is using it under license. There have
been some technical problems in applying this method on a commercial scale, but
these have been largely overcome. Fabrics produced using NMMO have applications
in clothing.
Anon., High Performance Text., Aug. 1994, pp 3-5
2 comments:
I think Lenzing licenced the Akzo technology in 1987 and Courtaulds followed in 1990
I think you're right and have changed the post accordingly
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