SU1004410A1 - Process for producing oligomethyl-phenyl siloxanes - Google Patents
Process for producing oligomethyl-phenyl siloxanes Download PDFInfo
- Publication number
- SU1004410A1 SU1004410A1 SU802997347A SU2997347A SU1004410A1 SU 1004410 A1 SU1004410 A1 SU 1004410A1 SU 802997347 A SU802997347 A SU 802997347A SU 2997347 A SU2997347 A SU 2997347A SU 1004410 A1 SU1004410 A1 SU 1004410A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- producing
- oligomethyl
- phenyl siloxanes
- phenyl
- fluids
- Prior art date
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Description
1one
Изобретение относитс к химической технологии, конкретно к получению олигометилфенилсилоксанов, при- А мен емых в качестве теплоносителей, основы термостойких смазок, диэлектриков в электротехнической, машиностроительной и химической отрасл х промьшленности.The invention relates to chemical technology, specifically to the production of oligomethylphenylsiloxanes used as heat carriers, the basis of heat-resistant lubricants, dielectrics in the electrical, machine-building and chemical industries.
Известен способ получени олигометилфенилсилоксановых жидкостей путем совместного гидролиза метилфенилдихлорсилана , диметилдихлорси- . лана и триметилхлорсилана с последующей перегруппировкой продуктов гидролиза кислым или щелочным катализатором 1 ,A known method of producing oligomethylphenylsiloxane liquids by co-hydrolysis of methylphenyldichlorosilane, dimethyldichloro-. lan and trimethylchlorosilane followed by rearrangement of the hydrolysis products with an acidic or alkaline catalyst 1,
Недо.статком этого способа получени олигометилфенилсилоксановых жидкостей вл етс использование дорогосто щего дефицитного мономера - метилфенилдихлорсилана, чем обусловлена высока стоимость промышленных метилфенилсилоксановых жидкостей .The disadvantage of this method for producing oligomethylphenylsiloxane fluids is the use of an expensive deficient monomer, methylphenyldichlorosilane, which accounts for the high cost of industrial methylphenylsiloxane liquids.
Существенного снижени сГбимости метилфенилсилоксановых жидкостей можно достичь использу вместо дорогосто щего метилфенилдихлорсилана дифенилдихлорсилан, стоимость которого примерно в 5 раз ниже. Така замена возможна, поскольку эксплуатационные характеристики указанных жидкостей завис т главным образомA significant reduction in the acceptability of methylphenylsiloxane fluids can be achieved by using, instead of the expensive methylphenyldichlorosilane, diphenyldichlorosilane, the cost of which is about 5 times lower. Such replacement is possible because the performance of these fluids depends mainly on
,д от суммарного отношени в молекуле фенильных и метильных групп, а не от типа исходного фенилсодержащего мономера,, d from the total ratio in the molecule of the phenyl and methyl groups, and not from the type of the starting phenyl-containing monomer,
Известен спрсоб получени метил ,5 фенилсилоксановых жидкостей путем совместного гидролиза дифенилдихлор-, силана, диметилдихлорсилана и триметилхлорсилана с последующей каталитической перегруппировкой продуктовKnown for the preparation of methyl, 5 phenylsiloxane fluids by co-hydrolysis of diphenyldichloro-, silane, dimethyldichlorosilane and trimethylchlorosilane followed by catalytic rearrangement of the products
20 гидролиза кислым катализатором (отбеливающей глиной) при lOO-ZOO C fzj.20 hydrolysis with an acid catalyst (bleaching clay) at lOO-ZOO C fzj.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802997347A SU1004410A1 (en) | 1980-10-23 | 1980-10-23 | Process for producing oligomethyl-phenyl siloxanes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802997347A SU1004410A1 (en) | 1980-10-23 | 1980-10-23 | Process for producing oligomethyl-phenyl siloxanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1004410A1 true SU1004410A1 (en) | 1983-03-15 |
Family
ID=20923493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802997347A SU1004410A1 (en) | 1980-10-23 | 1980-10-23 | Process for producing oligomethyl-phenyl siloxanes |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1004410A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1473346A1 (en) * | 2003-04-28 | 2004-11-03 | Shin-Etsu Chemical Company, Ltd. | Dimethylpolysiloxane composition |
| RU2461584C2 (en) * | 2007-03-12 | 2012-09-20 | Байер Ой | Use of tocopherol |
| RU2714728C1 (en) * | 2019-03-29 | 2020-02-20 | Общество с ограниченной ответственностью "Тульская фармацевтическая фабрика" | Method of producing polymethylsilsesquioxane hydrogel |
-
1980
- 1980-10-23 SU SU802997347A patent/SU1004410A1/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1473346A1 (en) * | 2003-04-28 | 2004-11-03 | Shin-Etsu Chemical Company, Ltd. | Dimethylpolysiloxane composition |
| US6942820B2 (en) | 2003-04-28 | 2005-09-13 | Shin-Etsu Chemical Co., Ltd. | Dimethylpolysiloxane composition |
| RU2461584C2 (en) * | 2007-03-12 | 2012-09-20 | Байер Ой | Use of tocopherol |
| RU2714728C1 (en) * | 2019-03-29 | 2020-02-20 | Общество с ограниченной ответственностью "Тульская фармацевтическая фабрика" | Method of producing polymethylsilsesquioxane hydrogel |
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