Source for cellulose ethers

I am having trouble locating a company that has the following
cellulose ether derivatives:  CMC (sodium carboxymethyl cellulose -
1 brand name being "Blanose") and HPC (hydroxypropyl cellulose -
"Klucel" and specifically "G").

I'm in Switzerland so if a company in Europe can be found it would
be most helpful.  Hercules Gmbh was once a source but is no longer.
But if you know of a source in America, that would be fine.

Kim Travis
Dept. of Archaeology
Swiss National Museum

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                  Conservation DistList Instance 13:18
               Distributed: Wednesday, September 1, 1999
                       Message Id: cdl-13-18-013
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