Patent GB-1122371-A (GB)
Title: Organotin compositions
IPC: C07F7/22
Filed: 1965-09-22
Abstract: A bactericidal and fungicidal composition, suitable for addition to emulsifiable oil compositions and cleansing compositions comprises an organotin compound of the general formula YmSnX4- m; (Y2SnO)a; or (YSnO1. 5)a in which m is an integer from 1 to 3; a is at least 2; X is an inorganic or organic radical or anion attached to the tin atom by a bond other than a carbon-tin bond; and Y is an organic radical attached to the tin atom by a carbon-tin bond, and a surfactant having a critical balance of hydrophobic and hydrophilic groups therein such that the tin compound remains dissolved in the surfactant on standing and does not separate out, the surfactant having the general formula R-(Alk-O)zH in which R is a hydrophobic radical: Alk is an alkylene radical containing 2 to 4 carbon atoms, and z is the number of oxyalkylene units which impart a solubility of at least 3% to the surfactant. Emulsifiable oil compositions mentioned are cutting oils and oil concentrates which, when diluted with water, are used to prepare oily cloths for industrial dusting or wiping purposes.  An example of a cleansing composition to which the organotin composition may be added is a household cleaner consisting of nonylphenoxypoly (ethyleneoxy) ethanol, tribasic sodium phosphate, tetrasodium pyrophosphate, sodium metasilicate, sodium carbonate, sodium sulphate and water.ALSO:A fungicidal and algicidal composition, suitable for inhibiting the formation of slime in cooling water systems and paper mills, comprises an organotin compound of the general formula YmSnX4- m; (Y2SnO)a; or (YSnO1.5)a in which m is an integer from 1 to 3; a is at least 2; X is an inorganic or organic radical or anion attached to the tin atom by a bond other than a carbon-tin bond; and Y is an organic radical attached to the tin atom by a carbon-tin bond, and a surfactant having a critical balance of hydrophobic and hydrophilic groups therein such that the tin compound remains dissolved in the surfactant on standing and does not separate out, the surfactant having the general formula R-(Alk-O)zH in which R is a hydrophobic radical; Alk is an alkylene radical containing 2 to 4 carbon atoms, and z is the number of oxyalkylene units which impart a solubility of at least 3% to the surfactant.  Surfactants exemplified are nonyl phenol/ alkylene oxide/diethanolamine condensates. 2,4,6-Trichlorophenol may also be present.ALSO:A fungicidal and algicidal composition, suitable for inhibiting the formation of slime in paper mills, comprises an orgonotion compound of the general formula:-  Ym Sn X4-m; (Y2 SnO)8; or (YSnO1,5)8 in which n is an integer from 1 to 3; a is at least 2; x is an inorganic or organic radical or anion attached to the tin atom by a bond or other than a carbon-tin bond; and Y is an organic radical attached to the tin atom by a carbon-tin bond and a surfactant having a critical balance of hydrophobic and hydrophilic groups therein such that the tin compound remains dissolved in the surfactant on standing and does not separate out, the surfactant having the general formula:-  R-(Alk-0)zH in which R is a hydrophobic radical Alk is an alkylene radical containing 2 to 4 carbon atoms and z is the number of oxyalkylene units which impart a solubility of at least 3% to the surfactant.  The composition may be added at the beater stage of operation or at other suitable points of application, such as to the white water.ALSO:A pesticidal and bactericidal composition comprises an organotin compound of the general formula: Ym SnX4-m; (Y2SnO)a; or (YSnO1,5)a in which m is an integer from 1 to 3; a is at least 2; X is an inorganic or organic radical or anion attached to the tin atom by a bond other than a carbon-tin bond; and Y is an organic radical attached to the tin atom by a carbon-tin bond, and a surfactant having a critical balance of hydrophobic and hydrophilic groups therein such that the tin compound remains dissolved in the surfactant on standing and does not separate out, the surfactant having the general formula: R - (Alk-O)z H in which R is a hydrophobic radical; Alk is an alkylene radical containing 2 to 4 carbon atoms, and z is the number of oxyalkylene units which impart a solubility of at least 3% to the surfactant.  Organic mercury compounds and quaternary ammonium bactericides also may be present.