BRPI0412505A - processo para preparar organohidrogensiloxanos cìclicos - Google Patents
processo para preparar organohidrogensiloxanos cìclicosInfo
- Publication number
- BRPI0412505A BRPI0412505A BRPI0412505-3A BRPI0412505A BRPI0412505A BR PI0412505 A BRPI0412505 A BR PI0412505A BR PI0412505 A BRPI0412505 A BR PI0412505A BR PI0412505 A BRPI0412505 A BR PI0412505A
- Authority
- BR
- Brazil
- Prior art keywords
- organohydrogensiloxanes
- hydrolyzate
- cyclic organohydrogensiloxanes
- contacting
- sub
- Prior art date
Links
- 125000004122 cyclic group Chemical group 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 230000008707 rearrangement Effects 0.000 abstract 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- -1 alkyl radicals Chemical group 0.000 abstract 1
- 150000005840 aryl radicals Chemical class 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 239000003701 inert diluent Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 150000002894 organic compounds Chemical group 0.000 abstract 1
- 229910000077 silane Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0834—Compounds having one or more O-Si linkage
- C07F7/0838—Compounds with one or more Si-O-Si sequences
- C07F7/0872—Preparation and treatment thereof
- C07F7/0874—Reactions involving a bond of the Si-O-Si linkage
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Silicon Polymers (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
"PROCESSO PARA PREPARAR ORGANOHIDROGENSILOXANOS CìCLICOS". Processo para preparar organohidrogensiloxanos cíclicos que compreende: (A) contactar um silano de fórmula RHSiCl~ 2~, onde R é selecionado de radicais alquila tendo 1 a 12 átomos de carbono e radicais arila, com água para formar um hidrolisado que compreende organohidrogensiloxanos cíclicos e organohidrogensiloxanos lineares, e (B) contactar o hidrolisado com um catalisador de redistribuição ácido na presença de um diluente líquido inerte para aumentar a relação dos organohidrogensiloxanos cíclicos para organohidrogensiloxanos lineares no hidrolisado. O catalisador de redistribuição ácido é um grupo de ácido forte contendo um composto orgânico, por exemplo, um ácido sulfónico, o qual é dissolvido no diluente líquido inerte presente.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0316268.2A GB0316268D0 (en) | 2003-07-11 | 2003-07-11 | Process for preparing cyclic organohydrogensiloxanes |
| PCT/EP2004/007805 WO2005005441A2 (en) | 2003-07-11 | 2004-07-02 | Process for preparing cyclic organohydrogensiloxanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BRPI0412505A true BRPI0412505A (pt) | 2006-09-19 |
Family
ID=27742005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0412505-3A BRPI0412505A (pt) | 2003-07-11 | 2004-07-02 | processo para preparar organohidrogensiloxanos cìclicos |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7307179B2 (pt) |
| EP (1) | EP1648907B1 (pt) |
| JP (1) | JP4482560B2 (pt) |
| CN (1) | CN100455588C (pt) |
| AT (1) | ATE345348T1 (pt) |
| BR (1) | BRPI0412505A (pt) |
| DE (1) | DE602004003257T2 (pt) |
| GB (1) | GB0316268D0 (pt) |
| WO (1) | WO2005005441A2 (pt) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164556B (zh) * | 2018-01-05 | 2020-12-08 | 王谌树 | 一种有机硅水解油连续裂解工艺 |
| KR20210003201A (ko) * | 2018-05-02 | 2021-01-11 | 하이실랩스 에스에이에스 | 수소 운반체 화합물 |
| CN109233285A (zh) * | 2018-08-27 | 2019-01-18 | 扬中市惠丰包装有限公司 | 一种硅橡胶废料裂解回收再利用方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US527116A (en) * | 1894-10-09 | Pruning-tool | ||
| US5196559A (en) * | 1992-01-23 | 1993-03-23 | Dow Corning Corporation | Equilibration of cyclic siloxanes with novel catalysts |
| US5247116A (en) | 1992-07-10 | 1993-09-21 | Temple University Of The Commonwealth System Of Higher Education | Acid-catalyzed process for the production of cyclosiloxanes |
| US5395956A (en) * | 1994-07-05 | 1995-03-07 | Dow Corning Corporation | Process for preparing cyclic organohydrogensiloxanes |
| US6534614B2 (en) * | 2001-04-04 | 2003-03-18 | General Electric Company | Process for the production of linear organohydrogensiloxanes |
-
2003
- 2003-07-11 GB GBGB0316268.2A patent/GB0316268D0/en not_active Ceased
-
2004
- 2004-07-02 JP JP2006519871A patent/JP4482560B2/ja not_active Expired - Lifetime
- 2004-07-02 BR BRPI0412505-3A patent/BRPI0412505A/pt not_active Application Discontinuation
- 2004-07-02 EP EP04763219A patent/EP1648907B1/en not_active Expired - Lifetime
- 2004-07-02 US US10/559,956 patent/US7307179B2/en not_active Expired - Lifetime
- 2004-07-02 AT AT04763219T patent/ATE345348T1/de not_active IP Right Cessation
- 2004-07-02 CN CNB2004800197141A patent/CN100455588C/zh not_active Expired - Lifetime
- 2004-07-02 WO PCT/EP2004/007805 patent/WO2005005441A2/en active IP Right Grant
- 2004-07-02 DE DE602004003257T patent/DE602004003257T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE602004003257T2 (de) | 2007-05-31 |
| WO2005005441A2 (en) | 2005-01-20 |
| CN100455588C (zh) | 2009-01-28 |
| US20060173202A1 (en) | 2006-08-03 |
| ATE345348T1 (de) | 2006-12-15 |
| DE602004003257D1 (de) | 2006-12-28 |
| JP2009513548A (ja) | 2009-04-02 |
| US7307179B2 (en) | 2007-12-11 |
| CN1820015A (zh) | 2006-08-16 |
| EP1648907A2 (en) | 2006-04-26 |
| EP1648907B1 (en) | 2006-11-15 |
| WO2005005441A3 (en) | 2005-04-07 |
| JP4482560B2 (ja) | 2010-06-16 |
| GB0316268D0 (en) | 2003-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
| B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O E 13 DA LPI. |
|
| B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |