Title:
オルガノポリシロキサン組成物の連続的な製造法
Document Type and Number:
Japanese Patent JP5006924
Kind Code:
B2
Abstract:
Preparing a base material comprises homogenously mixing and kneading at least a diorganopolysiloxane containing e.g. at least 1.5 residue of H per molecule, with at least a pre-hydrophobated oxidic reinforcing filler to obtain a mass; where: in the first process step a kneading cascade (1) with at least two kneading chambers (2) is used; and the second process step takes place in a stirring device (8), which disposes over a discharge opening (9) by which the mass from the first process step is feed into the stirring device, impinged, degassed and discharged from the second process step. Preparing a base material with a viscosity of greater than 500000 mPas measured at 25[deg] C and a shear rate of 1 s ->1>, comprises homogenously mixing and kneading at least a diorganopolysiloxane containing at least 1.5 residue of aliphatically unsaturated carbon-carbon multiple bond, hydroxyl group or H per molecule, with at least a pre-hydrophobated oxidic reinforcing filler with a carbon content of at least 0.5 wt.% obtained by hydrophobization, to obtain a mass; where: in the first process step a kneading cascade (1) arranged with at least two kneading chambers (2) are used, in which the chambers are arranged in rows to one another, the chambers contain axially parallel, equal or counter driven kneading tools (3), and are bonded to openings (5) passable transverse to the axes of the kneading tool, and at least first kneading chamber has a feeding opening (6) and the second kneading chamber has a discharge opening (7); and the second process step of a follow-up treatment takes place in a stirring device (8), which disposes over a discharge opening (9) by which the mass obtained from the first process step is feed into the stirring device with a defined volume stream under constant regeneration of the surface using rotating mixing-/dispersing tool and/or stripper with shear force, impinged, degassed and discharged from the second process step over the discharge opening with the volume stream.
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Inventors:
Thomas hitter
Johann Schuster
Richard Bill Nader
Johann Schuster
Richard Bill Nader
Application Number:
JP2009286003A
Publication Date:
August 22, 2012
Filing Date:
December 17, 2009
Export Citation:
Assignee:
Wacker Chemie AG
International Classes:
C08J3/20; C08K3/36; C08L83/04
Domestic Patent References:
| JP2004291642A | ||||
| JP11001617A | ||||
| JP2002241508A | ||||
| JP2002254427A | ||||
| JP8269330A |
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Takuya Kuno
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard