Title: Electrically insulating material to be used in composite insulators, a process for the production of composite insulators by using such an electricall
Application Number: 94103325 Application Date: 1994.03.24
Publication Number: 1096395 Publication Date: 1994.12.14
Approval Pub. Date: 2002.01.23 Granted Pub. Date: 2002.01.23
International Classifi-cation: C08C19/42;C08K3/00;C08L23/16;H01B3/28;H01B17/00;H01B19/00
Applicant(s) Name: NGK Insulators, Ltd. Address:
Inventor(s) Name: Isao Nakajima;Sehchi Mizuno;Isao Nakajima;Sehchi M
Attorney & Agent: FENG GENGXUAN
Abstract:
    An electrically insulating material to be used for a housing in a composite insulator has a structure in which the housing is formed around the outer periphery of an insulating supporting member inside a mold through vulcanization by heating at high temperature under high pressure, wherein the electrically insulating material comprises an electrically insulating component and a thermal expansion coefficient-regulating material added in such an amount as to give a coefficient of linear thermal expansion of the electrically insulating material not more than 1.5 x 10-4/.degree.C. A composite insulator is also disclosed, which has a housing made of said electrically insulating material around a core. Further, a process for producing such a composite insulator is disclosed.
Time: 5
<- Previous Patent:Natural rubber having a constant ...   |  Next Patent:Process for producing raw rubber ->