Alkoxylpropylisothiazolinone and preparation method and use thereof
AssigneeOcean University of China
InventorsLiangmin Yu, Xiaohui Jiang, Zhiming Zhang, Huanzhi Xu, Changcheng Li
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Abstract
An alkoxylpropyl isothiazolinone of formula: C6H6Cl2NO2SR, in which R is CH3, CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH2CH2OCH3 or CH2CH2OC6H5Cl. A method for preparing the isothiazolinone by reacting sodium polysulphide with methyl acrylate to obtain dimethyl dithiodipropionate, followed by aminolysis with alkoxyl propylamine to obtain N,N′-dialkoxylpropyldithio-dipropionamide, which is then reacted with sulfuric chloride. The alkoxylpropyl-isothiazolinone of the invention can be used for preparing marine antifouling paint coating as antifoulant, and also used as bactericide.
Claims5
A method of preparing a compound of a formula:
- wherein, R is CH3, CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH2CH2OCH3 or CH2CH2OC6H5Cl comprising reacting sodium polysulphide with methyl acrylate to obtain dimethyl dithiodipropionate, followed by aminolysis with alkoxyl propylamine to obtain N,N'-dialkoxylpropyldithio-dipropionamide, which is then reacted with sulfuric chloride to obtain the alkoxyipropyl-isothiazolinone.
An antifouling coating composition comprised of resin solution, a plasticizer, filler, and a compound having a formula:
- wherein, R is CH3, CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH2CH2OCH3 or CH2CH2OC6H5Cl, wherein the percent by weight is 20-60, 1-20, 1-30 and 1-50, respectively.
method for inhibiting fouling of surfaces exposed to seawater by marine organisms comprising;
- coating a surface to be exposed to marine organisms with a composition of resin solution, a plasticizer, filler and a compound having a formula
- wherein, R is CH3, CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH2CH2OCH3 or CH2CH2OC6H5Cl and wherein the percent by weight is 20-60, 1-20,1-30 and 1-50, respectively.
Dependencies are inferred from the claim text.