RU2011108642A - METHOD FOR PRODUCING HEAT-RESISTANT OLIGOORGANOSILOXANES - Google Patents
METHOD FOR PRODUCING HEAT-RESISTANT OLIGOORGANOSILOXANES Download PDFInfo
- Publication number
- RU2011108642A RU2011108642A RU2011108642/04A RU2011108642A RU2011108642A RU 2011108642 A RU2011108642 A RU 2011108642A RU 2011108642/04 A RU2011108642/04 A RU 2011108642/04A RU 2011108642 A RU2011108642 A RU 2011108642A RU 2011108642 A RU2011108642 A RU 2011108642A
- Authority
- RU
- Russia
- Prior art keywords
- organoalkoxysilanes
- starting
- oet
- vin
- sulfuric acid
- Prior art date
Links
Abstract
Способ получения термостойких олигоорганосилоксановых смол формулы ! [PhSiO3/2]a [RnSiO4-n/2]b [Me2SiO]c, ! где Rn - Me, H, Vin, при n=1, 2; a=0,5-0,97; b=0,03-0,5; c=0-0,47 поликонденсацией продуктов гидролиза исходных органоалкоксисиланов в активной среде, представляющую собой безводную карбоновую кислоту, под действием катализатора, в качестве которого используют серную кислоту, отличающийся тем, что смесь исходных органоалкоксисиланов, выбранных из ряда PhSi(OEt)3, RnSi(OEt)4-n, где Rn= Me, H, Vin, при n=1,2 предварительно подвергают частичному гидролизу при температуре 70°С, причем катализатор - серную кислоту берут в количестве 0,001-0,09 моль.% от суммы молей всех исходных органоалкоксисиланов, а для улучшения эластичности получаемого продукта в смесь исходных органоалкоксисиланов вводят не содержащий хлор циклосилоксан [Me2SiO]4. A method of obtaining a heat-resistant oligoorganosiloxane resins of the formula! [PhSiO3 / 2] a [RnSiO4-n / 2] b [Me2SiO] c,! where Rn is Me, H, Vin, with n = 1, 2; a = 0.5-0.97; b = 0.03-0.5; c = 0-0.47 by polycondensation of the products of hydrolysis of the starting organoalkoxysilanes in an active medium, which is an anhydrous carboxylic acid, under the action of a catalyst, which uses sulfuric acid, characterized in that the mixture of the starting organoalkoxysilanes selected from the series PhSi (OEt) 3, RnSi (OEt) 4-n, where Rn = Me, H, Vin, at n = 1.2, they are preliminarily subjected to partial hydrolysis at a temperature of 70 ° C, and the sulfuric acid catalyst is taken in an amount of 0.001-0.09 mol.% Of the amount of moles of all the starting organoalkoxysilanes, and to improve the elastic spine of the product obtained in the initial mixture introduced organoalkoxysilanes containing no chlorine cyclosiloxane [Me2SiO] 4.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2011108642/04A RU2464286C1 (en) | 2011-03-09 | 2011-03-09 | Method of producing heat-resistant oligoorganosiloxane resins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2011108642/04A RU2464286C1 (en) | 2011-03-09 | 2011-03-09 | Method of producing heat-resistant oligoorganosiloxane resins |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2011108642A true RU2011108642A (en) | 2012-09-20 |
RU2464286C1 RU2464286C1 (en) | 2012-10-20 |
Family
ID=47076934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2011108642/04A RU2464286C1 (en) | 2011-03-09 | 2011-03-09 | Method of producing heat-resistant oligoorganosiloxane resins |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2464286C1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109135073A (en) * | 2018-08-30 | 2019-01-04 | 北京理工大学 | A kind of resistance to ablation ternary ethlene propyene rubbercompound material and preparation method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2563037C1 (en) * | 2014-10-07 | 2015-09-20 | Акционерное общество "Государственный Ордена Трудового Красного Знамени научно-исследовательский институт химии и технологии элементоорганических соединений" (АО "ГНИИХТЭОС") | Method of producing polyorganosiloxanes based on organoalkoxysilanes |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19800023A1 (en) * | 1998-01-02 | 1999-07-08 | Huels Silicone Gmbh | Continuous process for the production of polyorganosiloxanes |
JP3999902B2 (en) * | 1999-01-27 | 2007-10-31 | 東レ・ダウコーニング株式会社 | Method for producing organosilicon compound |
RU2006113775A (en) * | 2006-04-25 | 2007-11-20 | Институт синтетических полимерных материалов (ИСПМ) им. Н.С. Ениколопова РАН (RU) | METHOD FOR PRODUCING POLYorganorganosiloxanes by polycondensation of organoalkoxysilanes in an active medium |
RU2401846C2 (en) * | 2006-04-25 | 2010-10-20 | Учреждение Российской академии наук Институт синтетических полимерных материалов им. Н.С. Ениколопова РАН (ИСПМ РАН) | Functional polyorganosiloxanes and curable composition based on said polyorganosiloxanes |
RU2427592C2 (en) * | 2007-04-24 | 2011-08-27 | Учреждение Российской академии наук Институт синтетических полимерных материалов им. Н.С. Ениколопова РАН (ИСПМ) | Method of producing functional polyorganosiloxanes and composition based thereon |
-
2011
- 2011-03-09 RU RU2011108642/04A patent/RU2464286C1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109135073A (en) * | 2018-08-30 | 2019-01-04 | 北京理工大学 | A kind of resistance to ablation ternary ethlene propyene rubbercompound material and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
RU2464286C1 (en) | 2012-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EA201491289A1 (en) | Method of producing hexamethylenediamine from 5-hydroxymethyl-furfurol | |
MY155569A (en) | Recombinant cells producing ? - aminocarboxylic acid ? - aminocarboxylic acid esters or their lactams | |
MX356674B (en) | Precipitated-silica production method. | |
JP2010006794A5 (en) | ||
IN2014DN11259A (en) | ||
FR2979344B1 (en) | PROCESS FOR THE PREPARATION OF FURFURAL | |
EA201170901A1 (en) | METHOD FOR PRODUCING CATALYST WITH SILICA CARRIER AND METHOD OF MANUFACTURE OF UNSATURATED CARBONIC ACID OR UNSATURATED NITRILE | |
BR112015015035A2 (en) | integrated process for acetic acid production | |
RU2011108642A (en) | METHOD FOR PRODUCING HEAT-RESISTANT OLIGOORGANOSILOXANES | |
ATE528260T1 (en) | IMPROVED PROCESS FOR PRODUCING HYDROGEN ACID BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE - DIRECT HEATING | |
BR112013017150A2 (en) | condensed process for preparation of a dialkyl terephthalate, chemoselective process, dialkyl cyclohexane-2,5-diol-1,4-dicarboxylate and dialkyl cyclohexane-2,5-dione-1,4-dicarboxylate | |
WO2012114357A8 (en) | Process for preparing hyperbranched polyesters | |
JP2011006410A5 (en) | ||
WO2014202031A8 (en) | Method for co-production of adipic acid and nitrocyclohexane | |
WO2014044626A3 (en) | Process for producing gelatin employing aspergillopepsin ii | |
BR112015009181A2 (en) | method for the production of cyclic esters | |
RU2010146340A (en) | METHOD FOR PRODUCING N-2-Ethylhexide-N'-phenyl-p-phenylenediamine | |
FR2974802B1 (en) | PROCESS FOR PURIFYING GLYCOLIC ACID BY DISTILLATION | |
MX2016003164A (en) | Improved process for manufacture of tetrahydrofuran. | |
WO2013120924A3 (en) | Method for producing fumaric acid using a yeast strain | |
BR112012030397A2 (en) | lactic acid-isosorbide copolyesters and process for their preparation | |
CN102399147A (en) | Preparation method of 1, 4-cyclohexanedimethanol dibenzoate | |
RU2020111747A (en) | METHOD FOR PREPARING POLYAMIDINES BY [2 + 2] -CYCLOADDITION REACTION | |
TH75572B (en) | The process of synthesis of catalyst from by-product production of Asphaltic concrete production process and the use of such catalyst. | |
TH112366A (en) | Process for producing ancholine Or acrylic acid from glycerin |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20160310 |