公开(公告)号：CZ2001684A3

公开(公告)日：2001-10-17

申请号：CZ2001684

申请日：2001-02-22

Applicant: DEGUSSA

Inventor： MICHEL RUDOLF ,  MUNZENBERG JORG DR ,  WILL WERNER ,  ZEZULKA GERD RAINHARD

IPC: C07F7/18

Abstract: Production of organosilylalkyl polysufides (I) by reacting an organosilylalkyl halide (II) with an anhydrous ionic sulfide (III) and elemental sulfur comprises adding (III) to a suspension of elemental sulfur and (II) in a polar organic solvent. Production of organosilylalkyl polysufides of formula (I) by reacting an organosilylalkyl halide of formula (II) with an anhydrous ionic sulfide of formula (III) and elemental sulfur comprises adding (III) to a suspension of elemental sulfur and (II) in a polar organic solvent: (R 1>R 2>R 3>SiR 4>)S x (I) , R 1>R 2>R 3>SiR 4>X (II) and M 2S (III) R 1>-R 3>1-8C alkyl, 1-8C alkoxy or aryl, at least one being alkoxy; R 4>1-8C alkylene or (CH 2) n-C 6H 4-(CH 2) n; n : 1-4; x : more than 1; X : Cl, Br or I; M : an alkali metal or ammonium cation or half an alkaline earth metal or zinc cation.

公开(公告)号：BR9802875A

公开(公告)日：2000-05-02

申请号：BR9802875

申请日：1998-08-07

Applicant: DEGUSSA

Inventor： MUENZENBERG JOERG DR ,  WILL WERNER ,  ZEZULKA GERD

IPC: C07F7/08 ,  C07F7/18

Abstract: Two-stage preparation of highly pure organosilicon disulfans of formula Z-Alk-S2-Alk-Z (I) comprises (1) dissolving or suspending sulfur (S) and an anhydrous sulfide of formula Me2S (II) in 1:(0.2-0.9) molar ratio and treating the solution or suspension with an organosilicon compound of formula Z-Alk-Hal (III), with a molar ratio of (III) to sulfur of (1.2-2):1; and (2) adding more (II) after reaction, in an amount approximately equimolar to the total amounts of (II) and S used for reaction, and isolating (I); in which Z = -Si(R )2R , -Si(R )(R )2 or -Si(R )3; R = 1-5C alkyl, 5-8C cycloalkyl, benzyl or a phenyl group optionally substituted by methyl (Me), ethyl (Et) or chlorine (Cl); R = 1-5C alkoxy, 5-8C cycloalkoxy, phenoxy or benzyloxy; Alk = a 1-10C divalent, saturated linear or branched hydrocarbon group or -CH2-Phe-CH2-; Phe = phenylene; Me = ammonium, an alkali metal or one equivalent of an alkaline earth metal or zinc; Hal = Cl or bromine (Br).

公开(公告)号：DE59202137D1

公开(公告)日：1995-06-14

申请号：DE59202137

申请日：1992-07-31

Applicant: DEGUSSA

Inventor： GOEBEL THOMAS DR ,  PANSTER PETER DR ,  WILL WERNER ,  KLEINSCHMIT PETER PROF DR

IPC: C07F7/18 ,  C07F7/20

公开(公告)号：DE2262909A1

公开(公告)日：1974-07-04

申请号：DE2262909

申请日：1972-12-22

Applicant: DEGUSSA ,  BASF AG

Inventor： THURN FRIEDRICHM DR ,  MEYER-SIMON EUGEN DR ,  WILL WERNER ,  SCHMIDT FRANZ DR ,  SCHENK WOLFGANG DR ,  WURMB ROLF DR

IPC: C03C25/40 ,  C07F7/18 ,  C08F2/30 ,  C08G2/30 ,  C08J5/08 ,  C08K5/54 ,  C08G31/32

Abstract: The present discovery concerns new organosilanes which possess two silane groups, one of which is located at each end of a polymeric molecule. These compounds are useful in improving the physical properties of synthetic thermoplastic materials which are based on formaldehyde or trioxane and inorganic solids.