JPH0583092B2 - - Google Patents
Info
- Publication number
- JPH0583092B2 JPH0583092B2 JP63326387A JP32638788A JPH0583092B2 JP H0583092 B2 JPH0583092 B2 JP H0583092B2 JP 63326387 A JP63326387 A JP 63326387A JP 32638788 A JP32638788 A JP 32638788A JP H0583092 B2 JPH0583092 B2 JP H0583092B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- mixture
- sio
- packed column
- range
- 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 - Fee Related
Links
- 239000012530 fluid Substances 0.000 claims description 74
- 239000002253 acid Substances 0.000 claims description 68
- 239000000203 mixture Substances 0.000 claims description 51
- 239000004927 clay Substances 0.000 claims description 46
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 27
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 25
- -1 polydimethylsiloxane Polymers 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 13
- 125000005372 silanol group Chemical group 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000010924 continuous production Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000006227 byproduct Substances 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 description 26
- 238000003776 cleavage reaction Methods 0.000 description 10
- 230000007017 scission Effects 0.000 description 10
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 125000000962 organic group Chemical group 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 210000002741 palatine tonsil Anatomy 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- 239000003729 cation exchange resin Substances 0.000 description 3
- 229940023913 cation exchange resins Drugs 0.000 description 3
- 238000011067 equilibration Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 150000004760 silicates Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- 229910020175 SiOH Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical class O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012676 equilibrium polymerization Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920006294 polydialkylsiloxane Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000004819 silanols Chemical class 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000004665 trialkylsilyl group Chemical group 0.000 description 1
Classifications
-
- 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
- C08G77/04—Polysiloxanes
- C08G77/06—Preparatory processes
- C08G77/10—Equilibration processes
-
- 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
- C08G77/04—Polysiloxanes
- C08G77/06—Preparatory processes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Silicon Polymers (AREA)
Description
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ã§äœäžããããããè«æ±é ïŒèšèŒã®æ¹æ³ã
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US140282 | 1980-04-14 | ||
| US07/140,282 US4831174A (en) | 1987-12-31 | 1987-12-31 | Production of polydiorganosiloxane fluids with low silanol content |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH028224A JPH028224A (ja) | 1990-01-11 |
| JPH0583092B2 true JPH0583092B2 (ja) | 1993-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| JP63326387A Granted JPH028224A (ja) | 1987-12-31 | 1988-12-26 | äœã·ã©ããŒã«å«æéã®ããªãžãªã«ã¬ãã·ãããµã³æµäœã®è£œé æ¹æ³ |
Country Status (6)
| Country | Link |
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| US (1) | US4831174A (ja) |
| EP (1) | EP0324186B1 (ja) |
| JP (1) | JPH028224A (ja) |
| BR (1) | BR8807009A (ja) |
| CA (1) | CA1312167C (ja) |
| DE (1) | DE3878443T2 (ja) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068383A (en) * | 1990-11-09 | 1991-11-26 | Dow Corning Corporation | Catalyzed redistribution of polyorganosiloxanes |
| EP0515081A1 (en) * | 1991-05-20 | 1992-11-25 | Dow Corning Corporation | Base-catalyzed preparation of polyorganosiloxanes with controlled low-levels of hydroxy substitution |
| US5510441A (en) * | 1993-07-15 | 1996-04-23 | General Electric Company | Process for producing octamethyltrisiloxane |
| US5408025A (en) * | 1993-07-15 | 1995-04-18 | General Electric Company | Synthesis of low silanol content, triorgano-stopped silicone fluids |
| US5357016A (en) * | 1993-09-20 | 1994-10-18 | Dow Corning Corporation | Preparation and processing of polydiorganosiloxanes |
| DE4441057C2 (de) * | 1994-11-17 | 1999-02-25 | Wacker Chemie Gmbh | Verfahren zur kontinuierlichen Herstellung von Organopolysiloxanen |
| US5616673A (en) | 1995-12-13 | 1997-04-01 | General Electric Company | Process for production of low viscosity low silanol content silicone fluids |
| GB9827085D0 (en) * | 1998-12-09 | 1999-02-03 | Dow Corning | Polymerisation of siloxanes |
| JP3632736B2 (ja) * | 1998-11-13 | 2005-03-23 | ä¿¡è¶ååŠå·¥æ¥æ ªåŒäŒç€Ÿ | ãªã«ã¬ãããªã·ãããµã³ã¬ã ã®è£œé æ¹æ³ |
| US6727337B2 (en) * | 2002-05-16 | 2004-04-27 | The Australian National University | Low loss optical material |
| WO2004037866A2 (en) * | 2002-10-21 | 2004-05-06 | Shipley Company L.L.C. | Photoresists containing sulfonamide component |
| WO2019094412A1 (en) | 2017-11-10 | 2019-05-16 | Momentive Performance Materials Inc. | Organomodified silicone fuel additive, compositions, and methods of using the same |
| EP4549488A1 (de) | 2023-10-31 | 2025-05-07 | Evonik Operations GmbH | Verfahren zur herstellung von wasserstoffsiloxanen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2460805A (en) * | 1945-12-06 | 1949-02-08 | Dow Chemical Co | Polymerization of organo-polysiloxanes with acid-activated bleaching earth |
| DE957662C (de) * | 1954-02-15 | 1957-01-17 | Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk | Verfahren zur Herstellung von stabilen Alkyl- und/oder Arylpolysiloxanölen |
| DE2030936C3 (de) * | 1970-06-23 | 1974-03-21 | Wacker-Chemie Gmbh, 8000 Muenchen | Verfahren zur Herstellung von Organopolysiloxanölen |
| US3903047A (en) * | 1973-10-23 | 1975-09-02 | Gen Electric | Process for the production of silanol-stopped diorgano-polysiloxanes |
| US3853933A (en) * | 1974-01-14 | 1974-12-10 | Gen Electric | Continuous process for producing polysiloxane oils utilizing a carbon black catalyst |
| US3853934A (en) * | 1974-01-14 | 1974-12-10 | Gen Electric | Continuous process for producing polysiloxane oils |
| ATE48279T1 (de) * | 1986-03-18 | 1989-12-15 | Wacker Chemie Gmbh | Kontinuierliches verfahren zur aenderung des molekulargewichts von linearen oder cyclischen organo(poly)siloxanen. |
-
1987
- 1987-12-31 US US07/140,282 patent/US4831174A/en not_active Expired - Lifetime
-
1988
- 1988-11-14 CA CA000582949A patent/CA1312167C/en not_active Expired - Lifetime
- 1988-12-26 JP JP63326387A patent/JPH028224A/ja active Granted
- 1988-12-30 DE DE8888121912T patent/DE3878443T2/de not_active Expired - Lifetime
- 1988-12-30 EP EP88121912A patent/EP0324186B1/en not_active Expired - Lifetime
- 1988-12-30 BR BR888807009A patent/BR8807009A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA1312167C (en) | 1992-12-29 |
| JPH028224A (ja) | 1990-01-11 |
| EP0324186B1 (en) | 1993-02-10 |
| EP0324186A1 (en) | 1989-07-19 |
| US4831174A (en) | 1989-05-16 |
| BR8807009A (pt) | 1989-09-05 |
| DE3878443T2 (de) | 1993-06-09 |
| DE3878443D1 (de) | 1993-03-25 |
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