摘要:
Organotin esters from acid esters of di or poly carboxylic acids are made by mixing base an organotin halide and the acid ester in the presence of water, and reacting to form the organotin ester, the amount of base and acid ester being to provide 0.9-1.3 equivalents and at least 0.9 equivalents respectively per g. atom of halogen in the organotin halide, and the conditions being such as not to cause substantial hydrolysis, and the progressive mixing of base with organotin halide or acid ester being not later than the mixing of organotin halide and acid ester.
摘要:
Organotin esters from acid esters of di or poly carboxylic acids are made by adding a base to a mixture of an organotin halide and the acid ester in the presence of water, and reacting to form the organotin ester, the amount of base and acid ester being to provide 0.9-1.3 equivalents and at least 0.9 equivalents respectively per g. atom of halogen in the organotin halide, and the conditions being such as not to cause substantial hydrolysis.
摘要:
A fire suppression system for a double walled storage tank having an inner tank for containing a flammable liquid and an outer tank separated from the inner tank by a defined space. A leakage detector monitors any leakage of the flammable liquid from the inner tank into the space. A temperature sensor triggers a flow of coolant into the space in the event combustion of the flammable liquid is detected. If no leakage of flammable liquid has been previously detected, the flow of coolant exits the space and is sprayed on the outer surface of the outer tank. If leakage has been detected, the coolant and any entrained flammable liquid are safely diverted to a remote location. In the preferred embodiment, the inner tank is coated with a ceramic paint for added insulation and the outer tank is treated with a fire resistant coating.
摘要:
Tricycloalkyltin chlorides e.g. tricyclohexyltin chlorides, which may be converted to the fungicide tricyclohexyl hydroxide, are made by reacting an organic tricycloalkyltin, in which the organic is not cycloalkyl and cycloalkyl is optionally substituted cyclohexyl, with organic tin trihalide.
摘要:
A double-walled tank assembly having a passageway from an inner tank to an outer tank, the passageway having an outer opening, and a cover removably mounted over the outer opening of the passageway to seal the passageway. The cover has a pressure relief vent and a plate suspended from the cover, within the passageway, below the pressure relief vent, and above the opening in the inner tank. In the event of liquid surging within the tank, the plate prevents the liquid from impinging against the pressure relief vent. In addition, in order to prevent tampering with the pressure relief vent, the cover has an enclosure around the pressure relief vent to prevent tampering.
摘要:
A templated mold comprises a mold body formed from a mold material. The mold body has at least one major surface with a patterned layer formed from a patterning material disposed over the major surface. The patterned layer defines a high nucleation energy barrier surface and a plurality of nucleation surfaces, such that a contact angle of a molten semiconducting material with the nucleation surfaces is less than a contact angle of the molten semiconducting material with the high nucleation energy barrier surface, and the nucleation surfaces are formed from either the mold material or the patterning material.