[专利]
Polyvinyl chloride resin composition and a polyvinyl chloride-based resin sheet
申请号:
2017JP-0008813
申请日:
2017-01-20
公开号:
JP2017133000 A 2017-08-03 [JP2017133000]
公开日:
2017-08-03
申请人:
SEKISUI CHEMICAL
专利权人:
SEKISUI CHEMICAL
发明人:
Mashina Nagaki;GOTO TAKUMA;Shoichi Nagahashi;Keihiro Shimono
国家:
IPC:
C08J-005/18;C08L-023/08;C08L-033/06;C08L-051/06;E04D-005/06
(JP2017133000) PROBLEM TO BE SOLVED: Good tensile and elongation properties are stably maintained for a long period of polyvinyl chloride resin sheet having properties, and that gives the polyvinyl chloride resin compositions are provided. SOLUTION: Polyvinyl chloride based resin composition according to the present invention is, when molded into a sheet; metal weather (h) and the test time by time to promote promoting X X (%) at a time of the log Y a tensile break elongation for log (X) axis and the axis (Y) represented by the graph Activitybase, promoting X is time 1,000 hours or less with respect to the actual values of the tensile elongation at break and a plurality of linear approximation equation determined from the measured coordinates shown in Fig. (I): log (Y) =A,log +B (X) in, for promoting X is 2400 case of time, the actual value of elongation at break rawn Yex 2,400 (I) a linear approximation equation and the obtained from a tensile break elongation Calcd Y2,400 (%) in relation to, the following formula (II): Yex 2,400 > 0.7 x Y2,400 heparinzied, and, tensile elongation at break of obs Yex is 100% greater. SELECTED DRAWING: Undetected