GB843273A - Improvements in the preparation of cyclic dimethylsiloxanes - Google Patents
Improvements in the preparation of cyclic dimethylsiloxanesInfo
- Publication number
- GB843273A GB843273A GB17823/57A GB1782357A GB843273A GB 843273 A GB843273 A GB 843273A GB 17823/57 A GB17823/57 A GB 17823/57A GB 1782357 A GB1782357 A GB 1782357A GB 843273 A GB843273 A GB 843273A
- Authority
- GB
- United Kingdom
- Prior art keywords
- siloxane
- parts
- cyclic
- groups
- impure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- -1 cyclic dimethylsiloxanes Chemical class 0.000 title abstract 9
- 238000002360 preparation method Methods 0.000 title abstract 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 229910052700 potassium Inorganic materials 0.000 abstract 3
- 239000011591 potassium Substances 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 abstract 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 abstract 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 abstract 2
- 229920001971 elastomer Polymers 0.000 abstract 2
- 239000000806 elastomer Substances 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- RZJRJXONCZWCBN-UHFFFAOYSA-N octadecane Chemical compound CCCCCCCCCCCCCCCCCC RZJRJXONCZWCBN-UHFFFAOYSA-N 0.000 abstract 2
- 239000004342 Benzoyl peroxide Substances 0.000 abstract 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 235000019400 benzoyl peroxide Nutrition 0.000 abstract 1
- 235000010290 biphenyl Nutrition 0.000 abstract 1
- 239000004305 biphenyl Substances 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 150000001923 cyclic compounds Chemical class 0.000 abstract 1
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- XWRLQRLQUKZEEU-UHFFFAOYSA-N ethyl(hydroxy)silicon Chemical class CC[Si]O XWRLQRLQUKZEEU-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229940038384 octadecane Drugs 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-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
- C07F7/20—Purification, separation
-
- 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
-
- 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
- C07F7/21—Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Silicon Polymers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US843273XA | 1956-06-06 | 1956-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB843273A true GB843273A (en) | 1960-08-04 |
Family
ID=22184252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17823/57A Expired GB843273A (en) | 1956-06-06 | 1957-06-05 | Improvements in the preparation of cyclic dimethylsiloxanes |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE558079A (enrdf_load_html_response) |
| DE (1) | DE1083820B (enrdf_load_html_response) |
| FR (1) | FR1176541A (enrdf_load_html_response) |
| GB (1) | GB843273A (enrdf_load_html_response) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2908249A1 (de) * | 1978-03-06 | 1979-09-13 | Asahi Chemical Ind | Verfahren zur herstellung von octamethylcyclotetrasiloxan |
| US4276425A (en) * | 1978-09-12 | 1981-06-30 | Wacker-Chemie Gmbh | Process for preparing cyclic dimethylpolysiloxanes |
| EP0311766A3 (en) * | 1987-08-14 | 1989-07-26 | Wacker-Chemie Gmbh | Preparation and use of mixtures with a high content of cyclosiloxanes |
| FR2723095A1 (fr) * | 1994-07-29 | 1996-02-02 | Gen Electric | Procede de preparation de siloxanes cycliques par craquage |
| NL1003475C2 (nl) * | 1996-07-01 | 1998-01-12 | Rhone Poulenc Chimie | Werkwijze voor het bereiden van cyclische polydiorganosiloxanen. |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5110972A (en) * | 1991-07-18 | 1992-05-05 | Tremco Incorporated | Process for recycling silicone scrap and products relating thereto |
| DE19934374C1 (de) * | 1999-07-22 | 2000-10-19 | Ge Bayer Silicones Gmbh & Co | Verfahren zur Herstellung cyclischer Dimethylsiloxane |
-
0
- BE BE558079D patent/BE558079A/xx unknown
-
1957
- 1957-06-05 FR FR1176541D patent/FR1176541A/fr not_active Expired
- 1957-06-05 GB GB17823/57A patent/GB843273A/en not_active Expired
- 1957-06-06 DE DEU4580A patent/DE1083820B/de active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2908249A1 (de) * | 1978-03-06 | 1979-09-13 | Asahi Chemical Ind | Verfahren zur herstellung von octamethylcyclotetrasiloxan |
| FR2419297A1 (fr) * | 1978-03-06 | 1979-10-05 | Asahi Chemical Ind | Procede de production d'octamethylcyclotetrasiloxane |
| US4197251A (en) | 1978-03-06 | 1980-04-08 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for producing octamethylcyclotetrasiloxane |
| US4276425A (en) * | 1978-09-12 | 1981-06-30 | Wacker-Chemie Gmbh | Process for preparing cyclic dimethylpolysiloxanes |
| EP0311766A3 (en) * | 1987-08-14 | 1989-07-26 | Wacker-Chemie Gmbh | Preparation and use of mixtures with a high content of cyclosiloxanes |
| FR2723095A1 (fr) * | 1994-07-29 | 1996-02-02 | Gen Electric | Procede de preparation de siloxanes cycliques par craquage |
| NL1003475C2 (nl) * | 1996-07-01 | 1998-01-12 | Rhone Poulenc Chimie | Werkwijze voor het bereiden van cyclische polydiorganosiloxanen. |
Also Published As
| Publication number | Publication date |
|---|---|
| BE558079A (enrdf_load_html_response) | |
| FR1176541A (fr) | 1959-04-13 |
| DE1083820B (de) | 1960-06-23 |
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