Material for use in gland packing element the gland packing element and manufacture thereof

Application Number: 00107428
Application Date: 2000.05.12
Publication Number: 1274816
Publication Date: 2000.11.29
Priority Information: 1999/5/14 JP 11-134505
International: F16J15/10;F16J15/22
Applicant(s) Name: Nippon Matex Co., Ltd.
Inventor(s) Name: Tsukamato Katsuro
Patent Agency Code: 72003
Patent Agent: zheng xia
Abstract The present invention relates to the materials used in a gland packing made from expansive graphite, the gland packing made from expansive graphite using the materials and a producing method of the gland packing made from expansive graphite, with producing facility in addition to sealing ability, heat resistance, chemical resistance and such properties and with causing no electrolytic corrosion to shaft and apparatus casing, and braiding thread which constructs these is braiding thread wherein a strip laminated sheet comprising an expansive graphite sheet laminated with a film made from polytetrafluoroethylene on one side thereof and is set with polyvinylalcohol layer on the other side thereof, is twist processed so that the film made from polytetrafluoroethylene positions on the outside.