Sliding resistor having excellent sliding durability

Details Sliding resistor having excellent sliding durability Sliding resistor having excellent sliding durability

2007-12-11

2007-12-11

Kopec, Mark (Department: 1751)

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

C338S202000, C252S511000

Reexamination Certificate

active

10993000

ABSTRACT:
A binder resin for sliding resistors contains an acetylene-terminated polyamic acid oligomer represented by the following general formula (I):wherein n is an integer of zero or more.

REFERENCES:
patent: 4622383 (1986-11-01), Araps et al.
patent: 4835197 (1989-05-01), Mercer
patent: 5138028 (1992-08-01), Paul et al.
patent: 5781100 (1998-07-01), Komatsu

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