High density information records made of conductive resin compositions comprising a specifically-treated vinyl chloride-base resin
摘要
A high density information record of the electrostatic capacitance type comprising a record substrate on which signal information is recorded as geometric variations. The record substrate is made of a conductive resin composition comprising a vinyl chloride resin and a conductive powder. The vinyl chloride resin is obtained by suspension polymerization of starting vinyl chloride monomer in an aqueous solution of a water-soluble polymer suspension stabilizer from which insoluble organic matters with sizes over 10 mu m have been removed.
申请公布号
US4548739(A)
申请公布日期
1985.10.22
申请号
US19840601098
申请日期
1984.04.17
申请人
VICTOR COMPANY OF JAPAN, LTD.;TOKUYAMA SEKISUI INDUSTRY CORPORATION, LTD.