Hауково-Дослідний Інститут Гірничорятувальної Справи
Научно-Исследовательский Институт Горноспасательного Дела
Hво "Респіратор"
Нпо "Респиратор"
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Application filed by Hауково-Дослідний Інститут Гірничорятувальної Справи, Научно-Исследовательский Институт Горноспасательного Дела, Hво "Респіратор", Нпо "Респиратор"filedCriticalHауково-Дослідний Інститут Гірничорятувальної Справи
Priority to UA4434879ApriorityCriticalpatent/UA11627A1/en
Publication of UA11627A1publicationCriticalpatent/UA11627A1/en
The invention relates to the preparation of modified silica. The process comprises the treatment of aerosil by soda ash and dimethyldichlorosilane. At first the treatment by dimethyldichlorosilane is carried out, after that by soda ash in quantity of 2-8 mas. % from aerosil quantity.
UA4434879A1988-05-311988-05-31Process for preparation of modified silica
UA11627A1
(en)
New derivatives of 2-azabicyclo(2,2,2)octane-3-carboxylic acid,process for their preparation,agents containing these derivatives and the use thereof,and of 2-azabicyclo(2,2,2)octane-3-carboxylic acid,as an intermediate stage and process for the preparation thereof
Composition against endoparasites containing 3-hydroxy-benzo-thiophene- or 3-hydroxy-thienopyridine derivatives as active components and process for producing some of the active components
Process for producing flavano-lignane compositions of improved release and absorption, compositions produced this way find use of them for producing pharmaceutical compositions
Compositions of insectifuge and acarifuge activity containing alpha, omega-amino-alkohol derivatives as active components and process for producing the active components