Title:
【発明の名称】高重合度のオルガノポリシロキサンの製造方法
Document Type and Number:
Japanese Patent JP2824953
Kind Code:
B2
Abstract:
Organopolysiloxanes having a silanol group at both terminal ends of molecular chain thereof are brought into condensation reaction with each other in the presence of a silane or siloxane having at least two dialkylaminosilyl groups per molecule as a condensation catalyst and a triorganosilanol or other endblocking agent, to lengthen the chain of the organopolysiloxane under reaction, whereby a triorganosilyl-endblocked organopolysiloxane with a high polymerization degree is obtained. The process yields a triorganosilyl-endblocked high-polymerization-degree organopolysiloxane while effectively suppressing or preventing the formation of low-molecular-weight siloxanes.
Inventors:
INOE YOSHIO
SEKIGUCHI SUSUMU
IGARASHI MINORU
TAKAHASHI MASAHARU
SEKIGUCHI SUSUMU
IGARASHI MINORU
TAKAHASHI MASAHARU
Application Number:
JP19904793A
Publication Date:
November 18, 1998
Filing Date:
July 15, 1993
Export Citation:
Assignee:
SHINETSU KAGAKU KOGYO KK
International Classes:
C08G77/06; C08G77/08; C08G77/34; C08G77/38; (IPC1-7): C08G77/06; C08G77/38
Attorney, Agent or Firm:
Shuji Iwamiya