ES451745A1 - Procedimiento para la preparacion de compuestos de organosi-licio con contenido de azufre. - Google Patents
Procedimiento para la preparacion de compuestos de organosi-licio con contenido de azufre.Info
- Publication number
- ES451745A1 ES451745A1 ES451745A ES451745A ES451745A1 ES 451745 A1 ES451745 A1 ES 451745A1 ES 451745 A ES451745 A ES 451745A ES 451745 A ES451745 A ES 451745A ES 451745 A1 ES451745 A1 ES 451745A1
- Authority
- ES
- Spain
- Prior art keywords
- carbon atoms
- group
- alk
- formula
- image
- 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
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052717 sulfur Inorganic materials 0.000 title abstract 3
- 239000011593 sulfur Substances 0.000 title abstract 3
- 150000003961 organosilicon compounds Chemical class 0.000 title abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 7
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 3
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 2
- -1 methoxyethoxy Chemical group 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- XBRVPWBNRAPVCC-UHFFFAOYSA-N 4,6,11-trioxa-1-aza-5$l^{3}-silabicyclo[3.3.3]undecane Chemical compound C1CO[Si]2OCCN1CCO2 XBRVPWBNRAPVCC-UHFFFAOYSA-N 0.000 abstract 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 abstract 1
- 239000007983 Tris buffer Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical group 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 125000003545 alkoxy group Chemical group 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 abstract 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052794 bromium Inorganic materials 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 125000001309 chloro group Chemical group Cl* 0.000 abstract 1
- 125000000000 cycloalkoxy group Chemical group 0.000 abstract 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract 1
- RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 abstract 1
- 229910052740 iodine Inorganic materials 0.000 abstract 1
- 239000011630 iodine Substances 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 abstract 1
- 229930195734 saturated hydrocarbon Natural products 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/548—Silicon-containing compounds containing sulfur
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/549—Silicon-containing compounds containing silicon in a ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2542534A DE2542534C3 (de) | 1975-09-24 | 1975-09-24 | Verfahren zur Herstellung von schwefelhaltigen Organosiliciumverbindungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES451745A1 true ES451745A1 (es) | 1977-08-16 |
Family
ID=5957253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES451745A Expired ES451745A1 (es) | 1975-09-24 | 1976-09-22 | Procedimiento para la preparacion de compuestos de organosi-licio con contenido de azufre. |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US4072701A (es) |
| JP (1) | JPS5253819A (es) |
| AR (1) | AR217631A1 (es) |
| AT (1) | AT344733B (es) |
| BE (1) | BE846519A (es) |
| CA (1) | CA1080736A (es) |
| CH (1) | CH621353A5 (es) |
| CS (1) | CS244652B2 (es) |
| DD (1) | DD127161A5 (es) |
| DE (1) | DE2542534C3 (es) |
| DK (1) | DK143706C (es) |
| ES (1) | ES451745A1 (es) |
| FR (1) | FR2325651A1 (es) |
| GB (1) | GB1518560A (es) |
| IL (1) | IL50544A (es) |
| IT (1) | IT1121673B (es) |
| NL (1) | NL186241C (es) |
| PL (1) | PL105436B1 (es) |
| SU (1) | SU900814A3 (es) |
| ZA (1) | ZA765745B (es) |
Families Citing this family (63)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2712866C3 (de) * | 1977-03-24 | 1980-04-30 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zum Herstellen von schwefelhaltigen Organosiliciumverbindungen |
| US4184998A (en) * | 1977-11-30 | 1980-01-22 | The B. F. Goodrich Company | Non odorous silane coupling agent |
| DE2856229A1 (de) * | 1978-12-27 | 1980-07-03 | Degussa | Bis-(silylaethyl)-oligosulfide und verfahren zur herstellung derselben |
| DE2933346C2 (de) * | 1979-08-17 | 1982-07-01 | Degussa Ag, 6000 Frankfurt | Silan/Füllstoff-Präparationen, Verfahren zu deren Herstellung und Anwendung derselben |
| DE2933345C2 (de) | 1979-08-17 | 1983-01-20 | Degussa Ag, 6000 Frankfurt | Vulkanisierbare Kautschuk-Mischung auf Basis von halogenfreien Kautschuken und Verfahren zum Vulkanisieren dieser Kautschukmischungen |
| DE3305373C2 (de) * | 1983-02-17 | 1985-07-11 | Degussa Ag, 6000 Frankfurt | Elastische Formmasse, Verfahren zum Herstellen und Verformen und Verwendung derselben |
| DE3311340A1 (de) * | 1983-03-29 | 1984-10-11 | Degussa Ag, 6000 Frankfurt | Verfahren zur herstellung von schwefelhaltigen organosiliciumverbindungen |
| DE3569929D1 (en) * | 1985-02-08 | 1989-06-08 | Huels Chemische Werke Ag | Coupling agent for the preparation of vulcanisates having a good filler-rubber adhesion |
| US5064613A (en) * | 1989-11-03 | 1991-11-12 | Dow Corning Corporation | Solid antimicrobial |
| EP0537006A3 (en) * | 1991-10-10 | 1993-06-16 | Elastochem, Inc. | Fluxed composites |
| JP3543352B2 (ja) * | 1994-02-16 | 2004-07-14 | 信越化学工業株式会社 | 含硫黄有機珪素化合物の製造方法 |
| US5399739A (en) * | 1994-04-18 | 1995-03-21 | Wright Chemical Corporation | Method of making sulfur-containing organosilanes |
| US5468893A (en) * | 1994-07-08 | 1995-11-21 | The Goodyear Tire & Rubber Company | Preparation of sulfur-containing organosilicon compounds |
| US5489701A (en) * | 1994-09-28 | 1996-02-06 | Osi Specialties, Inc. | Process for the preparation of silane polysulfides |
| US5466848A (en) * | 1994-09-28 | 1995-11-14 | Osi Specialties, Inc. | Process for the preparation of silane polysulfides |
| US5596116A (en) * | 1995-09-11 | 1997-01-21 | Osi Specialties, Inc. | Process for the preparation of silane polysulfides |
| US5583245A (en) * | 1996-03-06 | 1996-12-10 | The Goodyear Tire & Rubber Company | Preparation of sulfur-containing organosilicon compounds |
| US6006721A (en) * | 1996-06-14 | 1999-12-28 | Ford Global Technologies, Inc. | Modular intake port for an internal combustion engine |
| DE19732725A1 (de) * | 1997-07-30 | 1999-02-04 | Degussa | Mischungen, bestehend aus Bis(silylorganyl)polysulfanen und Silylorganylthiocyanaten, ihre Herstellung und Verwendung |
| DE69816395T2 (de) * | 1997-10-13 | 2004-05-13 | Dow Corning Toray Silicone Company, Ltd. | Silatranderivate und diese enthaltende härtbare Silikonzusammensetzungen |
| US5945555A (en) * | 1997-11-28 | 1999-08-31 | Dow Corning Toray Silicone Co., Ltd. | Silatrane derivative, method for manufacturing same, adhesion promoter, and curable silicone composition |
| US6452034B2 (en) | 2000-01-04 | 2002-09-17 | Crompton Corporation | Low-sulfur polysulfide silanes and process for preparation |
| US6518335B2 (en) | 2000-01-05 | 2003-02-11 | Crompton Corporation | Sulfur-containing silane coupling agents |
| FR2804120A1 (fr) * | 2000-01-24 | 2001-07-27 | Michelin Soc Tech | Composition de caoutchouc pour pneumatique comportant une charge blanche renforcante et un systeme de couplage (charge blanche/elstomere) |
| FR2804121A1 (fr) | 2000-01-24 | 2001-07-27 | Michelin Soc Tech | Composition de caoutchouc pour pneumatique comportant une charge blanche renforcante et un systeme de couplage ( charge blanche/elastomere) |
| JP5113970B2 (ja) | 2000-04-25 | 2013-01-09 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | タイヤに使用できるゴム組成物用ブロックコポリマー |
| AU2001265999A1 (en) * | 2000-05-22 | 2001-12-03 | Michelin Recherche Et Technique S.A. | Composition for tyre running tread and method for preparing same |
| MXPA02000865A (es) | 2000-05-26 | 2002-11-20 | Michelin Rech Tech | Composicion de caucho utilizable como banda de rodadura de neumatico. |
| US6359046B1 (en) | 2000-09-08 | 2002-03-19 | Crompton Corporation | Hydrocarbon core polysulfide silane coupling agents for filled elastomer compositions |
| ATE355327T1 (de) * | 2001-03-12 | 2006-03-15 | Michelin Soc Tech | Kautschukzusammensetzung für reifenlauffläche |
| DE10122269A1 (de) | 2001-05-08 | 2002-11-21 | Degussa | Silanmodifizierter biopolymerer, biooligomerer, oxidischer oder silikatischer Füllstoff, Verfahren zu seiner Herstellung und seine Verwendung |
| JP4536375B2 (ja) * | 2001-06-28 | 2010-09-01 | ソシエテ ド テクノロジー ミシュラン | 極めて低い比表面積のシリカで強化されたタイヤトレッド |
| EP1419195B1 (fr) * | 2001-06-28 | 2010-04-21 | Société de Technologie Michelin | Bande de roulement pour pneumatique renforcee d'une silice a basse surface specifique |
| US6433206B1 (en) | 2001-11-05 | 2002-08-13 | Crompton Corporation | Process for preparing silylorganomercaptans |
| AU2002356721A1 (en) | 2001-11-26 | 2003-06-10 | Societe De Technologie Michelin | Rubber composition for running tread and method for obtaining same |
| US6803406B2 (en) * | 2002-03-29 | 2004-10-12 | National Starch And Chemical Investmnet Holding Corporation | Electron donors, electron acceptors and adhesion promoters containing disulfide |
| DE10218350A1 (de) | 2002-04-25 | 2003-11-20 | Degussa | Silanmodifizierter oxidischer oder silikatischer Füllstoff, Verfahren zu seiner Herstellung und seine Verwendung |
| JP4450149B2 (ja) * | 2002-06-20 | 2010-04-14 | 信越化学工業株式会社 | 有機珪素化合物、その製造方法、及びゴム用配合剤 |
| FR2841244B1 (fr) * | 2002-06-21 | 2007-10-05 | Rhodia Chimie Sa | Procede de preparation d'organo dialkylalcoxysilane |
| EP1543072B8 (fr) * | 2002-09-04 | 2017-08-02 | Compagnie Générale des Etablissements Michelin | Composition de caoutchouc pour bande de roulement de pneumatique |
| US7138537B2 (en) * | 2003-04-02 | 2006-11-21 | General Electric Company | Coupling agents for mineral-filled elastomer compositions |
| DE102005038791A1 (de) * | 2005-08-17 | 2007-02-22 | Degussa Ag | Organosiliciumverbindungen, ihre Herstellung und ihre Verwendung |
| DE102006004062A1 (de) * | 2006-01-28 | 2007-08-09 | Degussa Gmbh | Kautschukmischungen |
| DE102006041356A1 (de) * | 2006-09-01 | 2008-03-20 | Evonik Degussa Gmbh | Verfahren zur Herstellung von Organosilanen |
| US8592506B2 (en) * | 2006-12-28 | 2013-11-26 | Continental Ag | Tire compositions and components containing blocked mercaptosilane coupling agent |
| US7687558B2 (en) * | 2006-12-28 | 2010-03-30 | Momentive Performance Materials Inc. | Silated cyclic core polysulfides, their preparation and use in filled elastomer compositions |
| US7968635B2 (en) * | 2006-12-28 | 2011-06-28 | Continental Ag | Tire compositions and components containing free-flowing filler compositions |
| US7968636B2 (en) * | 2006-12-28 | 2011-06-28 | Continental Ag | Tire compositions and components containing silated cyclic core polysulfides |
| US7696269B2 (en) * | 2006-12-28 | 2010-04-13 | Momentive Performance Materials Inc. | Silated core polysulfides, their preparation and use in filled elastomer compositions |
| US7968634B2 (en) * | 2006-12-28 | 2011-06-28 | Continental Ag | Tire compositions and components containing silated core polysulfides |
| US7968633B2 (en) * | 2006-12-28 | 2011-06-28 | Continental Ag | Tire compositions and components containing free-flowing filler compositions |
| US7781606B2 (en) * | 2006-12-28 | 2010-08-24 | Momentive Performance Materials Inc. | Blocked mercaptosilane coupling agents, process for making and uses in rubber |
| US7960460B2 (en) * | 2006-12-28 | 2011-06-14 | Momentive Performance Materials, Inc. | Free-flowing filler composition and rubber composition containing same |
| US7737202B2 (en) * | 2006-12-28 | 2010-06-15 | Momentive Performance Materials Inc. | Free-flowing filler composition and rubber composition containing same |
| FR2918065B1 (fr) | 2007-06-28 | 2011-04-15 | Michelin Soc Tech | Procede de preparation d'un copolymere dienique a bloc polyether, composition de caoutchouc renforcee et enveloppe de pneumatique. |
| CA2724798C (en) * | 2008-07-24 | 2014-08-26 | Industrias Negromex, S.A. De C.V. | Processes for making silane, hydrophobated silica, silica masterbatch and rubber products |
| DE102008054967A1 (de) | 2008-12-19 | 2010-06-24 | Evonik Degussa Gmbh | Silatranhaltige Partikel |
| DE102013226162A1 (de) | 2013-12-17 | 2015-06-18 | Evonik Degussa Gmbh | Silanmodifizierte Kieselsäure, Verfahren zu deren Herstellung und deren Verwendung |
| BR112016000228B1 (pt) | 2014-03-07 | 2022-08-30 | Industrias Negromex, S.A. De C.V. | Processos para preparação de masterbatch de sílica e de borracha em solução enchida com sílica |
| CN104961760A (zh) * | 2015-02-26 | 2015-10-07 | 菏泽学院 | 一种新型橡胶含硫硅烷偶联剂双-[γ-(三甲氧基)硅丙基]四硫化物的合成方法 |
| CN104961761A (zh) * | 2015-07-08 | 2015-10-07 | 江苏斯德瑞克化工有限公司 | 水相法合成双-[丙基三乙氧基硅烷]-四硫化物硅烷偶联剂的方法 |
| CA3032778C (en) | 2016-08-31 | 2021-11-02 | Dynasol Elastomeros, S.A. De C.V. | Processes for making masterbatches of rubber and silica |
| FR3065960B1 (fr) | 2017-05-05 | 2019-06-28 | Compagnie Generale Des Etablissements Michelin | Composition de caoutchouc comprenant au moins une silice en tant que charge renforcante inorganique |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3530160A (en) * | 1968-02-09 | 1970-09-22 | Exxon Research Engineering Co | (organo- or hydrolyzable group substituted)3silyl (unsubstituted chloro- or sulfenyl chloride substituted hydrocarbylene) sulfenyl chlorides |
| BE787691A (fr) * | 1971-08-17 | 1973-02-19 | Degussa | Composes organosiliciques contenant du soufre |
| US3873489A (en) * | 1971-08-17 | 1975-03-25 | Degussa | Rubber compositions containing silica and an organosilane |
| DE2360471A1 (de) * | 1973-12-05 | 1975-06-12 | Dynamit Nobel Ag | Verfahren zur herstellung von polysulfidbruecken enthaltenden alkylalkoxisilanen |
-
1975
- 1975-09-24 DE DE2542534A patent/DE2542534C3/de not_active Expired
-
1976
- 1976-09-21 NL NLAANVRAGE7610482,A patent/NL186241C/xx not_active IP Right Cessation
- 1976-09-21 DK DK424476A patent/DK143706C/da not_active IP Right Cessation
- 1976-09-22 ES ES451745A patent/ES451745A1/es not_active Expired
- 1976-09-22 DD DD194932A patent/DD127161A5/xx unknown
- 1976-09-22 FR FR7628439A patent/FR2325651A1/fr active Granted
- 1976-09-22 IT IT51390/76A patent/IT1121673B/it active
- 1976-09-23 AT AT705976A patent/AT344733B/de not_active IP Right Cessation
- 1976-09-23 CS CS766170A patent/CS244652B2/cs unknown
- 1976-09-23 CH CH1208876A patent/CH621353A5/de not_active IP Right Cessation
- 1976-09-23 AR AR264833A patent/AR217631A1/es active
- 1976-09-23 BE BE6045688A patent/BE846519A/xx not_active IP Right Cessation
- 1976-09-23 PL PL1976192597A patent/PL105436B1/pl unknown
- 1976-09-23 GB GB39481/76A patent/GB1518560A/en not_active Expired
- 1976-09-23 IL IL50544A patent/IL50544A/xx unknown
- 1976-09-24 ZA ZA765745A patent/ZA765745B/xx unknown
- 1976-09-24 US US05/730,726 patent/US4072701A/en not_active Expired - Lifetime
- 1976-09-24 CA CA261,991A patent/CA1080736A/en not_active Expired
- 1976-09-24 JP JP51114566A patent/JPS5253819A/ja active Granted
- 1976-09-24 SU SU762402959A patent/SU900814A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| AT344733B (de) | 1978-08-10 |
| DK143706B (da) | 1981-09-28 |
| DD127161A5 (es) | 1977-09-07 |
| IT1121673B (it) | 1986-04-10 |
| PL105436B1 (pl) | 1979-10-31 |
| ZA765745B (en) | 1977-08-31 |
| DE2542534A1 (de) | 1977-03-31 |
| NL186241B (nl) | 1990-05-16 |
| AR217631A1 (es) | 1980-04-15 |
| CA1080736A (en) | 1980-07-01 |
| SU900814A3 (ru) | 1982-01-23 |
| BE846519A (fr) | 1977-03-23 |
| CS244652B2 (en) | 1986-08-14 |
| NL186241C (nl) | 1990-10-16 |
| FR2325651A1 (fr) | 1977-04-22 |
| ATA705976A (de) | 1977-12-15 |
| CH621353A5 (es) | 1981-01-30 |
| IL50544A0 (en) | 1976-11-30 |
| DE2542534C3 (de) | 1979-08-02 |
| IL50544A (en) | 1980-03-31 |
| GB1518560A (en) | 1978-07-19 |
| DK424476A (da) | 1977-03-25 |
| FR2325651B1 (es) | 1979-06-08 |
| JPS5253819A (en) | 1977-04-30 |
| NL7610482A (nl) | 1977-03-28 |
| DK143706C (da) | 1982-03-15 |
| US4072701A (en) | 1978-02-07 |
| DE2542534B2 (de) | 1978-11-30 |
| CS617076A2 (en) | 1985-08-15 |
| JPS5726599B2 (es) | 1982-06-05 |
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