Liquid purification or separation – Casing divided by membrane into sections having inlet – Energy recovery from treated liquid
Patent
1998-07-31
2000-02-29
Sergent, Rabon
Liquid purification or separation
Casing divided by membrane into sections having inlet
Energy recovery from treated liquid
21032161, 21032162, 21032171, 21050023, 21050024, 21050037, 422 28, 422 32, 525452, 525453, 528 49, 528 51, 528 72, 528480, 528483, 528490, 528491, B01D 6302, B01D 6304, B01D 6308, B01D 6300, A61L 200
Patent
active
060305304
ABSTRACT:
Medical article of manufacture comprising compositions, comprising: at least one polyisocyanate, preferably a non-aromatic polyisocyanate, in the monomer or prepolymer state; at least one polypol; and at least one organic compound comprising one or more phosphite functional groups, in the proportion of at least 1% by weight with respect to the total weight of the polyol or polyols, this organic compound being, in addition, non-aromatic and the carrier of at least one free hydroxyl group capable of reacting with an isocyanato group; and, if appropriate, at least one catalyst of the polymerization reaction of a polyisocyanate and of a polyol.
REFERENCES:
patent: 3354241 (1967-11-01), Larrison
patent: 3483147 (1969-12-01), Friedman
patent: 4332927 (1982-06-01), Simone
patent: 4621113 (1986-11-01), Collins
patent: 5035893 (1991-07-01), Shioya et al.
patent: 5306798 (1994-04-01), Horn et al.
Esposito Guy
Herze Pierre-Yves
Hospal Industrie
Sergent Rabon
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