US 6,555,620 B1 · Conductive composition with excellent high-temperature storage stability and conductive roller obtained therefrom

Abstract

The addition of a compound containing an aliphatically unsaturated bond as a storage stability improver to a hydrosilylating addition reaction type hardenable electrically-conductive composition comprising at least one alkenyl group-containing isobutylene polymer which can undergo hydrosilylation reaction per molecule and an electrical conductivity-providing material makes it possible to obtain an electrically-conductive composition having an excellent storage stability at high temperatures. Further, the use of such an electrically-conductive composition makes it possible to provide an electrically-conductive roller having an excellent productivity and processability and an excellent stability of electrical properties against environmental change.

Claims18

Dependent claims

An electrically-conductive composition comprising the following components (A) to (E):

(A) An isobutylene polymer having at least one alkenyl group which can undergo hydrosilylation reaction per molecule;
(B) A compound having at least two hydrosilyl groups per molecule;
(C) A hydrosilylation catalyst;
(D) An acetylene alcohol having the following structure:
wherein R14 and R15 each independently represent a hydrogen atom, alkyl group or aryl group, with the proviso that R14 and R15 may be connected to each other to form a ring;
and
(E) An electrical conductivity-providing material.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/019,569Filed 31 Dec 2001

Priority

JP 11-18268729 Jun 1999

Granted

29 Apr 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H01B 1/24
Conductive material dispersed in non-conductive organic material: the conductive material comprising carbon-silicon compounds, carbon or silicon
C08L 23/22
Having four to nine carbon atoms: copolymers of isobutene; Butyl rubber; Homopolymers or copolymers of other iso-olefins
C08L 83/04
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with…
F16C 13/00
Rolls, drums, discs, or the like

Conductive composition with excellent high-temperature storage stability and conductive roller obtained therefrom

Life of this patent

Conductive composition with excellent high-temperature storage stability and conductive roller obtained therefrom

Life of this patent

Abstract

Claims18