公开(公告)号：US3703387A

公开(公告)日：1972-11-21

申请号：US3703387D

申请日：1969-03-03

Applicant: GEN MOTORS CORP

Inventor： KESTEN PATRICK N ,  WEBB RICHARD A ,  BEDFORD RAYMOND E

IPC: H01C17/065 ,  C04B33/26

CPC classification number: H01C17/065

Abstract: AN IMPROVED METHOD FOR WET MIXING A GLASS SEAL RESISTOR POWDER HAVING FREE BORIC OXIDE IN THE GLASS PHASE WHEREIN THE EXOTHERMIC REACTION BETWEEN THE WATER AND THE BORIC OXIDE IS MINIMIZED AND CONTROLLED THEREBY PRECLUDING CAKING AND BALLING OF THE RESISTOR POWDER, THIS BEING ACHIEVED BY THE ADDITION OF AN ORGANIC LIQUID SOLVENT SELECTED FROM THE GROUP CONSISTING OF TOLUENE, PENTANE, TRICHLOROETHYLENE, METHANOL, AND ETHANOL, IN THE AMOUNT OF APPROXIMATELY 5-20% BY WEIGHT OF THE RESISTOR POWDER.