75231810
Jan 24, 1997
Jul 21, 1998
polymers and monomers therefor, polymer solutions, polymeric membranes and films, ion exchange polymers and monomers therefor, ion exchange polymer solutions, and ion exchange polymeric membranes and films, all for use in further manufacture
Chemicals[custom manufacture and preparation of chemical products for use in the electronics industry, for use in power generation, for use in water purification, and for use in fluid separation]
Treatment of Materials