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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4. Отображено 4.
08-05-1968 дата публикации

Improvements in or relating to washing bottles and compositions therefor

Номер: GB0001112773A
Автор: BARBER ALAN LESLIE, BEATTIE FREDERICK PETER
Принадлежит:

A bottle washing composition comprises (a) an alkali metal hydroxide (b) a boroheptonic complex. The composition may be in the form of a solution containing from 1/2 to 2 1/2 % by weight of caustic soda, or may be a solid composition comprising 80 to 95 parts by weight of flake caustic soda and 20 to 5 parts by weight of sodium boroheptonate.ALSO:A boroheptonic complex believed to have the formula is prepared by reacting boric acid or a borate with heptonic acid or its salts.

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Номер записи: 1
19-06-1968 дата публикации

A method of removing surface coatings from metal surfaces using cleaning solutions

Номер: GB0001117703A
Автор: BARBER ALAN LESLIE
Принадлежит:

A method of facilitating the removal of surface coatings comprising contacting them with a hot alkaline solution which contains an organic sequestering or chelating agent of the general formula CH2OH(CHOH)a.COOH where a is 4-6, or an alkali metal salt thereof. The alkali used is either caustic soda or caustic potash. To be effective the concentration of alkali should not be substantially less than 5% by weight. The concentration of the sequestering agent may vary from 0.5 to 2% by weight.

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Номер записи: 2
27-11-1968 дата публикации

Improvements in or relating to etching

Номер: GB0001134716A
Автор: BARBER ALAN LESLIE, CLARKE JOHN
Принадлежит:

... 1,134,716. Etching. BOWMANS CHEMICALS Ltd., and FORESTAL INDUSTRIES (U.K.) Ltd. 26 Feb., 1966, No. 8557/66. Heading B6J. [Also in Division C7] A composition for the chemical removal of selected portions from metals, e.g. aluminium, aluminium alloys, lead, magnesium, tin, zinc and cadmium comprises an alkali (e.g. NaOH) in an amount of at least 50% by weight of the composition on a dry basis, a water soluble inorganic salt in which both cation and anion are inorganic and which accelerates the rate of chemical reaction between the metal and alkali, (or an inorganic acid for forming said salt by reaction with part of said alkali) and as a scale inhibitor, a water soluble, saturated aliphatic boron polyhydroxy compound obtainable by reacting boric acid or a borate with a dihydroxy or polyhydroxy aliphatic organic compound having two hydroxy groups on adjacent carbon atoms (examples are given). The water soluble inorganic salts listed are the nitrates, chlorides, chlorates, sulphates, fluorides ...

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Номер записи: 3
14-08-1968 дата публикации

Improvements in or relating to the treatment of natural or synthetic fibres

Номер: GB0001123071A
Автор: BARBER ALAN LESLIE
Принадлежит:

The contamination of natural and synthetic fibres e.g., cotton textile materials and cellulosic fibres intended for use in the production of surgical dressings and in paper-making, by metals, e.g., copper, iron and manganese, is controlled by subjecting the fibres to a kier boil stage with an aqueous alkaline liquid containing an organic sequestering or chelating agent having the formula CH2 OH (CH OH)a COOH in which a = 5 or 6, or an alkali metal salt thereof, e.g. sodium heptonate, the kier boil stage preceding or accompanying a bleaching stage for the fibres. 0.1% by weight of sequestering agent based on the weight of the processing liquor may be used. The bleaching agent may be hydrogen peroxide or sodium perborate and the solution may also contain sodium carbonate and an alkali metal silicate.

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Номер записи: 4