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POLYVINYL CHLORIDE RESIN COMPOSITION AND POLYVINYL CHLORIDE RESIN SHEET
PROBLEM TO BE SOLVED: To provide a polyvinyl chloride resin sheet having a property stably maintaining good tensile elongation property over long time and a polyvinyl chloride resin composition providing the same.SOLUTION: The polyvinyl chloride resin composition has a relationship of actual value of tensile breaking elongation Yand calculated value of tensile breaking elongation Y(%) calculated from a linear approximation formula (I) when acceleration time X is 2400 hours in the linear approximation formula (I): log(Y)=A log(X)+B calculated from a plurality of coordinates representing the actual value of tensile breaking elongation when the acceleration time is 1,000 hours or less satisfying the following formula (II): Y>0.7×Yin a double logarithmic graph represented by log(X) coordinate and log(Y) coordinate for the acceleration time X (hours) in a metal weather test and tensile breaking elongation Y (%) at the acceleration time X and the actual value of tensile breaking elongation Yof over 100% when molded to a sheet.SELECTED DRAWING: None
【課題】良好な引張伸び特性を長期にわたり安定的に維持する特性を有するポリ塩化ビニル系樹脂シート、およびそれを与えるポリ塩化ビニル系樹脂組成物を提供する。【解決手段】本発明のポリ塩化ビニル系樹脂組成物は、シートに成形された場合に;メタルウェザー試験による促進時間X(時間)および当該促進時間Xの時の引張破断伸びY(%)についてのlog(X)軸およびlog(Y)軸で表される両対数グラフにおける、促進時間Xが1,000時間以下の場合に対する引張破断伸びの実測値を示す複数の座標から定まる線形近似式(I):log(Y)=A・log(X)+B において、促進時間Xが2400時間の場合の、引破断伸びの実測値Yex2,400と上記線形近似式(I)から求められる引張破断伸びの計算値Y2,400(%)との関係が、次式(II):Yex2,400> 0.7 × Y2,400を満たし、かつ、引張破断伸びの実測値Yexが100%超である。【選択図】なし
POLYVINYL CHLORIDE RESIN COMPOSITION AND POLYVINYL CHLORIDE RESIN SHEET
PROBLEM TO BE SOLVED: To provide a polyvinyl chloride resin sheet having a property stably maintaining good tensile elongation property over long time and a polyvinyl chloride resin composition providing the same.SOLUTION: The polyvinyl chloride resin composition has a relationship of actual value of tensile breaking elongation Yand calculated value of tensile breaking elongation Y(%) calculated from a linear approximation formula (I) when acceleration time X is 2400 hours in the linear approximation formula (I): log(Y)=A log(X)+B calculated from a plurality of coordinates representing the actual value of tensile breaking elongation when the acceleration time is 1,000 hours or less satisfying the following formula (II): Y>0.7×Yin a double logarithmic graph represented by log(X) coordinate and log(Y) coordinate for the acceleration time X (hours) in a metal weather test and tensile breaking elongation Y (%) at the acceleration time X and the actual value of tensile breaking elongation Yof over 100% when molded to a sheet.SELECTED DRAWING: None
【課題】良好な引張伸び特性を長期にわたり安定的に維持する特性を有するポリ塩化ビニル系樹脂シート、およびそれを与えるポリ塩化ビニル系樹脂組成物を提供する。【解決手段】本発明のポリ塩化ビニル系樹脂組成物は、シートに成形された場合に;メタルウェザー試験による促進時間X(時間)および当該促進時間Xの時の引張破断伸びY(%)についてのlog(X)軸およびlog(Y)軸で表される両対数グラフにおける、促進時間Xが1,000時間以下の場合に対する引張破断伸びの実測値を示す複数の座標から定まる線形近似式(I):log(Y)=A・log(X)+B において、促進時間Xが2400時間の場合の、引破断伸びの実測値Yex2,400と上記線形近似式(I)から求められる引張破断伸びの計算値Y2,400(%)との関係が、次式(II):Yex2,400> 0.7 × Y2,400を満たし、かつ、引張破断伸びの実測値Yexが100%超である。【選択図】なし
POLYVINYL CHLORIDE RESIN COMPOSITION AND POLYVINYL CHLORIDE RESIN SHEET
ポリ塩化ビニル系樹脂組成物およびポリ塩化ビニル系樹脂シート
NAGAKI MARINA (author) / GOTO TAKUMA (author) / NAGAHASHI SHOICHI (author) / SHIMONO KEISUKE (author)
2017-08-03
Patent
Electronic Resource
Japanese
POLYVINYL CHLORIDE RESIN COMPOSITION AND POLYVINYL CHLORIDE RESIN SHEET
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