CN1344721A - 制备黄色双[3-(乙氧基甲硅烷基)丙基]四硫化物的方法 - Google Patents
制备黄色双[3-(乙氧基甲硅烷基)丙基]四硫化物的方法 Download PDFInfo
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- CN1344721A CN1344721A CN01118013A CN01118013A CN1344721A CN 1344721 A CN1344721 A CN 1344721A CN 01118013 A CN01118013 A CN 01118013A CN 01118013 A CN01118013 A CN 01118013A CN 1344721 A CN1344721 A CN 1344721A
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- chloropropyltriethoxysilane
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 title description 4
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 title 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 39
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 28
- 239000011630 iodine Substances 0.000 claims abstract description 28
- KSCAZPYHLGGNPZ-UHFFFAOYSA-N 3-chloropropyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)CCCCl KSCAZPYHLGGNPZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000007935 neutral effect Effects 0.000 claims abstract description 21
- OOXSLJBUMMHDKW-UHFFFAOYSA-N trichloro(3-chloropropyl)silane Chemical compound ClCCC[Si](Cl)(Cl)Cl OOXSLJBUMMHDKW-UHFFFAOYSA-N 0.000 claims abstract description 16
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 239000011593 sulfur Substances 0.000 claims abstract description 5
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 4
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011541 reaction mixture Substances 0.000 claims description 9
- -1 bis [3- (ethoxysilyl) propyl]iodine Chemical compound 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 16
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 12
- 238000001816 cooling Methods 0.000 description 10
- 238000010992 reflux Methods 0.000 description 9
- 239000011780 sodium chloride Substances 0.000 description 8
- ATYBNKYOXTWSBY-UHFFFAOYSA-N ethoxy-[3-(3-ethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[SiH2]CCCSSSSCCC[SiH2]OCC ATYBNKYOXTWSBY-UHFFFAOYSA-N 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000005160 1H NMR spectroscopy Methods 0.000 description 6
- XAZFTCOWAPEHJN-UHFFFAOYSA-N chloro-(3-chloropropyl)-diethoxysilane Chemical compound CCO[Si](Cl)(OCC)CCCCl XAZFTCOWAPEHJN-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000006136 alcoholysis reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- PYELTDLAWKVWEU-UHFFFAOYSA-N dichloro-(3-chloropropyl)-ethoxysilane Chemical compound CCO[Si](Cl)(Cl)CCCCl PYELTDLAWKVWEU-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- OCBFFGCSTGGPSQ-UHFFFAOYSA-N [CH2]CC Chemical compound [CH2]CC OCBFFGCSTGGPSQ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
Classifications
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- 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
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- 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
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/1892—Preparation; Treatments not provided for in C07F7/20 by reactions not provided for in C07F7/1876 - C07F7/1888
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明涉及一种制备碘比色值≤10mg碘/100ml、黄色双[3-(乙氧基甲硅烷基)丙基]四硫化物的方法,其中,向中性氯丙基三乙氧基硅烷中加入少量氯丙基三氯硅烷;然后在乙醇中与多硫化钠进行反应,或者与Na2S及硫进行反应。
Description
本发明涉及黄色双[3-(乙氧基甲硅烷基)丙基]四硫化物(Bis(3-[triethoxysilyl]propyl)tetrasulfan)的制备。
从DE 21 41 159中已知,通过氯丙基三乙氧基硅烷与多硫化钠(Natriumpolysulfid,NPS)之间的反应,可以制备双[3-(乙氧基甲硅烷基)丙基]四硫化物。所使用的氯丙基三乙氧基硅烷可以通过氯丙基三氯硅烷的醇解反应制得。醇解反应可以按照已知的方法进行,如DE 20 61 189和DE 32 36 628中所述的方法,所得的产物是完全转化的产物,只含有极少量的氯丙基单氯二乙氧基硅烷。这种完全转化的氯丙基三乙氧基硅烷在下面称之为“中性”。
如果按DE 21 41 159中所述的方法,用中性的氯丙基三乙氧基硅烷与多硫化钠或与Na2S及硫的反应来制备双[3-(乙氧基甲硅烷基)丙基]四硫化物,那么所得的产物为深黄色到红色(碘比色值≥20mg碘/100ml)。然而,市场中流行的是淡黄色的产品,这从中性的氯丙基三乙氧基硅烷无法得到。为了得到淡黄色的双[3-(乙氧基甲硅烷基)丙基]四硫化物(碘比色值≤10mg碘/100ml),氯丙基三乙氧基硅烷中必须存在一定量形式为氯丙基单氯二乙氧基硅烷的、所谓的残余酸。使醇解反应不完全进行到底可以实现这一点。然而,在实际操作中,这种方式所需的额外成本并非可以忽视,特别是因为残余酸的含量必须控制在很窄的范围内,也就是说,反应必须在接近完全转化之前的一个特定的点上终止。
在与上述硫化剂反应之前,用盐酸醇液(alkoholische Salzsaeure)酸化中性的氯丙基三乙氧基硅烷,也不会生成淡黄色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,而是同样生成深黄色至红色的双[3-(乙氧基甲硅烷基)丙基]四硫化物。
因而,这类已知工艺的缺点在于其所得产物的颜色是深黄色至红色。
本发明的目的就是要提供一种可制备黄色双[3-(乙氧基甲硅烷基)丙基]四硫化物的工艺方法。
在本发明制备黄色双[3-(乙氧基甲硅烷基)丙基]四硫化物的方法中,所得双[3-(乙氧基甲硅烷基)丙基]四硫化物的碘比色值≤10mg碘/100ml,优选为5~7mg碘/100ml;本发明方法的特征在于:在中性的氯丙基三乙氧基硅烷中加入氯丙基三氯硅烷,随后在乙醇中与多硫化钠或与Na2S及硫反应。
在中性氯丙基三乙氧基硅烷中加入少量的氯丙基三氯硅烷,会导致形成少量的氯丙基单氯二乙氧基硅烷和氯丙基双氯单乙氧基硅烷:
氯丙基单氯二乙氧基硅烷和氯丙基双氯单乙氧基硅烷的形成,即使在没有溶剂如乙醇存在的情况下,也可通过GC-MS试验加以验证。
这一方法的优点在于,醇解反应不必在接近完全转化之前的某一特定点上终止,而是可以完全转化成中性的氯丙基三乙氧基硅烷。制备淡黄色的双[3-(乙氧基甲硅烷基)丙基]四硫化物所需的少量氯丙基单氯二乙氧基硅烷,可通过在氯丙基三乙氧基硅烷中加入氯丙基三氯硅烷而简单地获得。
添加的顺序并不重要。可以将氯丙基三氯硅烷加入到由中性氯丙基三乙氧基硅烷和乙醇组成的溶液中;或者可以将氯丙基三氯硅烷加入到中性氯丙基三乙氧基硅烷中,然后加入乙醇。
以氯丙基三乙氧基硅烷的重量计,添加的氯丙基三氯硅烷的量可以在0.1~20wt.%的范围内,优选在0.5~5wt.%的范围内,更优选在0.8~1.2wt.%的范围内。
在加入多硫化钠或者Na2S及硫之前,可以加热反应混合物,优选加热到20~90℃。
按照本发明方法制得的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值≤10mg碘/100ml。
实施例1
在室温下,向240.8克氯丙基三乙氧基硅烷(中性)与200ml乙醇所形成的溶液中滴加2.4克氯丙基三氯硅烷。接着在82℃下、不断搅拌并沸腾回流1小时。冷却至60℃后,加入87.1克的多硫化钠;反应混合物在82℃下、不断搅拌并沸腾回流1.5小时。在冷却至室温后滤出沉淀下来的氯化钠,并用旋转蒸发器除去乙醇。随后进行过滤,得到256.1克的淡黄色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值为5~7mg碘/100ml。1H-NMR(CDCl3):δ0.75(m,6H,Si-(CH2)-(CH2)-(CH2)-S),1.22(t,3J(HH)=14Hz,18H,Si-O-CH2-CH3),1.72-1.95(m,6H,Si-(CH2)-(CH2)-(CH2)-S),2.65-3.06(m,Si-(CH2)-(CH2)-(CH2)-S),3.82(q,3J(HH)=14Hz,12H,Si-O-CH2-CH3)。
实施例2
在室温下,向240.8克氯丙基三乙氧基硅烷(中性)中滴加2.4克氯丙基三氯硅烷。接着在80℃下搅拌1小时。加入200ml的乙醇,温度降至62℃;加入87.1克的多硫化钠,反应混合物在82℃下、不断搅拌并沸腾回流1.5小时。在冷却至室温后滤出沉淀下来的氯化钠;用旋转蒸发器除去乙醇。随后进行过滤,得到257.3克的淡黄色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值为7~10mg碘/100ml。1H-NMR(CDCl3):δ0.75(m,6H,Si-(CH2)-(CH2)-(CH2)-S),1.22(t,3J(HH)=14Hz,18H,Si-O-CH2-CH3),1.72-1.95(m,6H,Si-(CH2)-(CH2)-(CH2)-S),2.65-3.06(m,Si-(CH2)-(CH2)-(CH2)-S),3.82(q,3J(HH)=14Hz,12H,Si-O-CH2-CH3)。
实施例3
在室温下,向1122千克氯丙基三乙氧基硅烷(中性)与950千克乙醇所形成的溶液中加入11.4千克的氯丙基三氯硅烷。接着在室温下搅拌30分钟。之后加入390千克的多硫化钠;反应混合物在82℃下、不断搅拌并沸腾回流1.5小时。在冷却至室温后滤出沉淀下来的氯化钠;用旋转蒸发器除去乙醇。随后进行过滤,得到1250千克的淡黄色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值为5~7mg碘/100ml。1H-NMR(CDCl3):δ0.75(m,6H,Si-(CH2)-(CH2)-(CH2)-S),1.22(t,3J(HH)=14Hz,18H,Si-O-CH2-CH3),1.72-1.95(m,6H,Si-(CH2)-(CH2)-(CH2)-S),2.65-3.06(m,Si-(CH2)-(CH2)-(CH2)-S),3.82(q,3J(HH)=14Hz,12H,Si-O-CH2-CH3)。
实施例4
在室温下,向481.6克氯丙基三乙氧基硅烷(中性)与450ml乙醇所形成的溶液中滴加4.8克氯丙基三氯硅烷。接着在80℃下、不断搅拌并沸腾回流1小时。冷却至58℃后,加入89.8克硫化钠和105.8克的硫;反应混合物在82℃下、不断搅拌并沸腾回流1.5小时。在冷却至室温后滤出沉淀下来的氯化钠,乙醇用旋转蒸发器除去。随后进行过滤,得到500.4克的淡黄色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值为5~7mg碘/100ml。1H-NMR(CDCl3):δ0.75(m,6H,Si-(CH2)-(CH2)-(CH2)-S),1.22(t,3J(HH)=14Hz,18H,Si-O-CH2-CH3),1.72-1.95(m,6H,Si-(CH2)-(CH2)-(CH2)-S),2.65-3.06(m,Si-(CH2)-(CH2)-(CH2)-S),3.82(q,3J(HH)=14Hz,12H,Si-O-CH2-CH3)。
实施例5(对比例1)
在60℃下,向240.8克氯丙基三乙氧基硅烷(中性)与200ml乙醇所形成的溶液中加入87.1克的多硫化钠;反应混合物在82℃下、不断搅拌并沸腾回流1.5小时。在冷却至室温后滤出沉淀下来的氯化钠,乙醇用旋转蒸发器除去。随后进行过滤,得到255.0克红色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值为>20mg碘/100ml。1H-NMR(CDCl3):δ0.75(m,6H,Si-(CH2)-(CH2)-(CH2)-S),1.22(t,3J(HH)=14Hz,18H,Si-O-CH2-CH3),1.72-1.95(m,6H,Si-(CH2)-(CH2)-(CH2)-S),2.65-3.06(m,Si-(CH2)-(CH2)-(CH2)-S),3.82(q,3J(HH)=14Hz,12H,Si-O-CH2-CH3)。
实施例6(对比例2)
在室温下,将240.8克氯丙基三乙氧基硅烷(中性)加入到200ml乙醇中。接着加入30ml 1M的HCl乙醇溶液,并在室温下搅拌30分钟。在加入87.1克多硫化钠后,反应混合物在82℃下、不断搅拌并沸腾回流1.5小时。在冷却至室温后滤出沉淀下来的氯化钠,乙醇用旋转蒸发器除去。随后进行过滤,得到253.5克红色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值>20mg碘/100ml。
实施例7(对比例3)
在60℃下,向481.6克氯丙基三乙氧基硅烷(中性)与450ml乙醇所形成的溶液中加入89.8克硫化钠及105.8克的硫;反应混合物在82℃下、不断搅拌并沸腾回流1.5小时。在冷却至室温后滤出沉淀下来的氯化钠,并用旋转蒸发器除去乙醇。随后进行过滤,得到496.3克红色的双[3-(乙氧基甲硅烷基)丙基]四硫化物,其碘比色值大于20mg碘/100ml。1H-NMR(CDCl3):δ0.75(m,6H,Si-(CH2)-(CH2)-(CH2)-S),1.22(t,3J(HH)=14Hz,18H,Si-O-CH2-CH3),1.72-1.95(m,6H,Si-(CH2)-(CH2)-(CH2)-S),2.65-3.06(m,Si-(CH2)-(CH2)-(CH2)-S),3.82(q,3J(HH)=14Hz,12H,Si-O-CH2-CH3)。
实施例8
在室温下向20ml的氯丙基三乙氧基硅烷(中性)中滴加5ml的氯丙基三氯硅烷。接着在80℃下搅拌1小时。冷却至室温后,用GC-MS谱仪记录反应所得混合物的谱图及所用的氯丙基三乙氧基硅烷(中性)的谱图,以便作为对照(见图1和图2)。在中性氯丙基三乙氧基硅烷中加入氯丙基三氯硅烷,导致形成了氯丙基单氯二乙氧基硅烷和氯丙基双氯单乙氧基硅烷。GC:HP 5890 II;MS:Finnigan MAT 95;色谱柱:30m×0.25mm DB-5MS;df:0.25μm U026;氦:80kpa;温度:50(5)-5-100-15-300(10);Split:100ml/min;注入量:0.1μl,溶于正己烷中。
碘比色值根据DIN 6162进行测定。
Claims (3)
1、一种制备碘比色值≤10mg碘/100ml、黄色双[3-(乙氧基甲硅烷基)丙基]四硫化物的方法,其特征在于,向中性氯丙基三乙氧基硅烷中加入氯丙基三氯硅烷;然后在乙醇中与多硫化钠进行反应,或者与Na2S及硫进行反应。
2、如权利要求1所述的方法,其特征在于,所加入的氯丙基三氯硅烷的量为0.1~20wt.%。
3、如权利要求1所述的方法,其特征在于,在加入多硫化钠之前,或者加入Na2S及硫之前,将反应混合物加热到20~90℃。
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Application Number | Priority Date | Filing Date | Title |
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DE10024037.2 | 2000-05-13 | ||
DE10024037A DE10024037C1 (de) | 2000-05-13 | 2000-05-13 | Verfahren zur Herstellung von gelbem Bis(3-(triethoxysilyl)propyl)tetrasulfan |
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CN1344721A true CN1344721A (zh) | 2002-04-17 |
CN1147496C CN1147496C (zh) | 2004-04-28 |
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US (1) | US6380413B2 (zh) |
EP (1) | EP1153927B1 (zh) |
JP (1) | JP2002128789A (zh) |
KR (1) | KR20010104280A (zh) |
CN (1) | CN1147496C (zh) |
DE (2) | DE10024037C1 (zh) |
RU (1) | RU2001112558A (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10045269A1 (de) * | 2000-09-13 | 2002-03-28 | Degussa | Verfahren zur Herstellung von gelbem Bis(3-[triethoxysilyl]propyl)polysulfan |
DE10132939C1 (de) * | 2001-07-06 | 2003-01-30 | Degussa | Verfahren zur Herstellung von gelben Bis(3-[trialkoxysilyl]alkyl)polysulfanen |
DE10351735B3 (de) * | 2003-11-06 | 2004-12-09 | Degussa Ag | Verfahren zur Herstellung von (Mercaptoorganyl)-alkoxysilanen |
DE10351736B3 (de) * | 2003-11-06 | 2005-01-13 | Degussa Ag | Verfahren zur Herstellung von (Mercaptoorganyl)-alkoxysilanen |
DE102007037556A1 (de) | 2007-08-09 | 2009-02-12 | Evonik Degussa Gmbh | Verfahren zur Herstellung von alkylpolyethersubstituierten Mercaptosilanen |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2061189C3 (de) * | 1970-12-11 | 1974-12-05 | Wacker-Chemie Gmbh, 8000 Muenchen | Verfahren zur kontinuierlichen Herstellung von Alkoxysilanen oder Alkoxypolysiloxanen |
DE2141159C3 (de) * | 1971-08-17 | 1983-11-24 | Degussa Ag, 6000 Frankfurt | Schwefel enthaltende Organosiliciumverbindungen |
DE3236628C2 (de) * | 1982-10-04 | 1986-09-11 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur kontinuierlichen Herstellung von Alkoxysilanen |
DE19819373A1 (de) * | 1998-04-30 | 1999-11-04 | Degussa | Verfahren zur Herstellung von Gemischen von Organosiliciumoligosulfanen mit einem hohen Anteil an Organanosiliciumdisulfanen |
DE19829390A1 (de) * | 1998-07-01 | 2000-01-05 | Degussa | Neue oligomere Organosiliciumverbindungen, deren Verwendung in Kautschukmischungen und zur Herstellung von Formkörpern |
US6172251B1 (en) * | 1998-07-24 | 2001-01-09 | The Goodyear Tire & Rubber Company | Solid/liquid phase transfer system |
US6294683B1 (en) * | 1999-01-19 | 2001-09-25 | The Goodyear Tire & Rubber Company | Solid/liquid phase transfer system |
DE19930495C1 (de) * | 1999-07-01 | 2000-11-09 | Degussa | Verfahren zur Herstellung von polysulfidischen Silanverbindungen |
-
2000
- 2000-05-13 DE DE10024037A patent/DE10024037C1/de not_active Expired - Fee Related
-
2001
- 2001-05-10 US US09/852,050 patent/US6380413B2/en not_active Expired - Lifetime
- 2001-05-10 CN CNB011180137A patent/CN1147496C/zh not_active Expired - Fee Related
- 2001-05-10 JP JP2001140363A patent/JP2002128789A/ja active Pending
- 2001-05-11 KR KR1020010025788A patent/KR20010104280A/ko not_active Application Discontinuation
- 2001-05-11 RU RU2001112558/04A patent/RU2001112558A/ru not_active Application Discontinuation
- 2001-05-12 EP EP01111617A patent/EP1153927B1/de not_active Expired - Lifetime
- 2001-05-12 DE DE50108425T patent/DE50108425D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1153927B1 (de) | 2005-12-21 |
RU2001112558A (ru) | 2003-05-20 |
US20020010353A1 (en) | 2002-01-24 |
DE10024037C1 (de) | 2001-08-09 |
DE50108425D1 (de) | 2006-01-26 |
US6380413B2 (en) | 2002-04-30 |
EP1153927A2 (de) | 2001-11-14 |
EP1153927A3 (de) | 2003-09-10 |
JP2002128789A (ja) | 2002-05-09 |
KR20010104280A (ko) | 2001-11-24 |
CN1147496C (zh) | 2004-04-28 |
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