公开(公告)号：JPH01144422A

公开(公告)日：1989-06-06

申请号：JP30519687

申请日：1987-12-01

Applicant: TORAY INDUSTRIES

Inventor： MORIGUCHI ISAMU ,  HOSODA MOTOMU ,  KANOU YOSHIFUMI

IPC: C08J5/18 ,  B29C55/12 ,  B29K23/00 ,  B29L7/00 ,  C08J7/00 ,  C23C14/20 ,  C23C14/56

Abstract: PURPOSE:To provide a polypropylene film for metallizing, exhibiting a specific thermal dimensional change curve under a specific condition having a specific form, having a specific temperature at a specific point in a dimensional change rate of the thermal dimensional change curve and giving little metallizing defects. CONSTITUTION:The objective film has the hollowing thermal dimensional change characteristics. When a thermal dimensional change curve measured by heating under a load of 0.4g/5mm width at a heating rate of 25-10 deg.C/min is graphed by taking the temperature as the abscissa and the longitudinal dimensional change ratio as the ordinate, the gradient of a straight line passing the point (temperature = 0 deg.C and dimensional change = 0%) and tangentially contacting with said thermal dimensional change curve is =110 deg.C.

公开(公告)号：JPS63194318A

公开(公告)日：1988-08-11

申请号：JP2638487

申请日：1987-02-09

Applicant: TORAY INDUSTRIES

Inventor： KITAURA KOICHI ,  NISHIDA HARUMASA ,  KANOU YOSHIFUMI

IPC: H01G4/18

公开(公告)号：JPS63273308A

公开(公告)日：1988-11-10

申请号：JP10631087

申请日：1987-05-01

Applicant: TORAY INDUSTRIES

Inventor： YUUKI KAZUICHI ,  KANOU YOSHIFUMI ,  TANAKA MEGUMI

IPC: H01G4/22

Abstract: PURPOSE:To make it possible to use an electrode formed by vapor depositing a zinc film having a specified sheet resistance on one side of the dielectric film at high potential gradient by impregnating the insulating oil with a specified viscosity and PV value between dielectric layers. CONSTITUTION:A rough surfaced film 1 mainly composed of polypropylene is a dielectric, and an element condenser is obtained by lapping the films formed a vapor deposition metallic layer 2 mainly composed of Zn with two of them superposed around one side of the film 1. After fixing the terminals at both ends of the metallized contacts 4 by providing them with the thick vapor deposition layers (HE) 3 of both ends of the element condenser, putting into an impregnation tank and making vacuum dry. Then, the insulating oil having viscosity less than 30 centipoise in 20 deg.C and PV value more than 20 is completely impregnated. The sheet resistance of the vapor desposition metallic layer 2 is 6-20OMEGA/square, and HE 3 having a sheet resistance less than 4OMEGA/square and width less than 7mm is formed. Accordingly, it is endurable against the use at high potential gradient.