Title:
エラストマーに架橋可能なオルガノポリシロキサン材料の製造法
Document Type and Number:
Japanese Patent JP4843200
Kind Code:
B2
Abstract:
Crosslinkable materials are prepared by mixing organopolysiloxane having at least two hydroxyl groups, silane, an organosilicon compound having a radical(s) comprising basic nitrogen, tin catalyst, optionally fillers, and optionally stabilizers, the organopolysiloxanes and silanes forming a reaction product with elimination of alkanol. Preparation of materials crosslinkable with elimination of alcohols to give elastomers comprises mixing: (a) organopolysiloxane having at least two hydroxyl groups; (b) silane of formula RSi(OR 1>) 3(I); (c) an organosilicon compound having a radical(s) bonded to silicon via carbon, the radical further comprising basic nitrogen; (d) a tin catalyst; (e) optionally fillers; and (f) optionally stabilizers, the organopolysiloxanes and silanes forming a reaction product with elimination of alkanol. R : Me, or vinyl radical; R 1>Me, Et radical, and/or their partial hydrolysis products. Silanes (I) and/or their partial hydrolysis products are used in amounts of >= 0.7 parts by weight (pbw), based on 100 pbw organopolysiloxanes. The tin catalyst is added to the organopolysiloxanes or the mixture containing the reaction product only when 1-60 % of the SiOH groups originally present remain present.
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Inventors:
Torsten Siegst
Franz Neuhauser
Franz Neuhauser
Application Number:
JP2004134156A
Publication Date:
December 21, 2011
Filing Date:
April 28, 2004
Export Citation:
Assignee:
Wacker Chemie AG
International Classes:
C08G77/26; C08L83/06; C08G77/04; C08G77/08; C08G77/14; C08K5/5419; C08L83/04
Domestic Patent References:
| JP2000169587A | ||||
| JP3050268A | ||||
| JP2000290510A |
Foreign References:
| DE4415396A1 |
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Einzel Felix-Reinhard
Takuya Kuno
Einzel Felix-Reinhard