Title:
CROSSLINKABLE NORBORNENE RESIN COMPOSITION AND MOLDING MADE THEREFROM
Document Type and Number:
Japanese Patent JP3319116
Kind Code:
B2
Abstract:
PURPOSE: To obtain the subject composition which can give a molding improved in electrical insulation properties, heat resistance, chemical resistance, etc., by mixing a thermoplastic hydrogenated ring-opening norbornene resin with an organic peroxide, a crosslinking aid and a specified flame retardant.
CONSTITUTION: 100 pts.wt. thermoplastic hydrogenated ring-opening norbornene resin of a molecular weight of 10000-200000 and a degree of hydrogenation of 90% or above is melt-mixed with 0.001-30 pts.wt. organic peroxide, 0.1-10 pts.wt. wt., per pt.wt. organic peroxide, crosslinking aid and optionally 5-150 pts.wt. flame retardant of formula I or II (wherein (n) and m1 to M6 integers; n ≥0; 1≤m1≤5;1≤m25;1≤m3≤4;1≤m4≤5;1≤m5≤5; and 1≤m6≤5) to obtain a resin composition. This resin composition is molded and crosslinked at 80-350°C for 5-120 min to obtain a crosslinked molding having a water absorptivity of 0.03% or below, an insulation resistance of 1015 to 1017Ω, a dielectric constant of 2.0-2.5 at 1MHz and a dielectric loss tangent of 0.0001-0.0007.
Inventors:
Yuji Kashima
Teiji Obara
Io Natsume
Teiji Obara
Io Natsume
Application Number:
JP35112593A
Publication Date:
August 26, 2002
Filing Date:
December 28, 1993
Export Citation:
Assignee:
Nippon Zeon Co., Ltd.
International Classes:
C08J5/18; C08J5/24; C08K5/02; C08K5/10; C08K5/14; C08K5/3477; C08L45/00; C08L65/00; H05K1/03; (IPC1-7): C08L65/00; C08J5/18; C08J5/24; C08K5/14
Domestic Patent References:
| JP6339936A | ||||
| JP5061452A |