[EN] QUATERNARY AMMONIUM SALTS, POLYMERIC FILM CONTAINING THEM AND COLORIMETRIC DEVICE<br/>[FR] SELS D'AMMONIUM QUATERNAIRE, FILM POLYMERE LES CONTENANT ET DISPOSITIF A COLORIMETRE
申请人:SENSORMETRIX INTERNATIONAL LIM
公开号:WO2000002844A1
公开(公告)日:2000-01-20
There is described a polymeric quaternary alkyl ammonium cation of general formula (I), or a salt thereof; in which R1, R2, R3 and R4, which may be the same or different are each alkyl C1 to 20; m is an integer from 1 to 100; and n is an integer from 1 to 7. There is also described a film formulation comprising a cation of formula (I), a colorimetric sensor device comprising said film and an endotracheal intubation apparatus comprising a sensor.