Sekisui Chemical Co., Ltd.

Tokuyama Sekisui Co., Ltd.

Kento Murakami

Yasunari Kusaka

Norikazu Mashino

Isao Higuchi

Kenichi Matsumura

Nami Nakajima

Takehisa Sugaya

Masahiko Yamagata

Takashi Muramoto

The present invention provides a chlorinated polyvinyl chloride resin that enables excellent continuous productivity in molding and that enables a molded article to have both processability and unevenness-preventing properties. Provided is a chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cmto a peak intensity B observed in a range of 600 to 650 cmof 0.50 to 2.00 in Raman imaging measurement by Raman spectroscopy.

Chlorinated vinyl-chloride-based resin

The present invention provides a chlorinated polyvinyl chloride resin that enables a molded article to have both processability and unevenness-preventing properties and also high gloss. Provided is a chlorinated polyvinyl chloride resin having an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cmto a peak intensity B observed in a range of 600 to 650 cmof 0.50 to 2.00 in Raman imaging measurement by Raman spectroscopy, and having a standard deviation of the ratio (A/B) of the peak intensity A to the peak intensity B of 0.100 to 0.200 in Raman measurement by Raman spectroscopy.

Chlorinated vinyl chloride resin

The present invention provides a chlorinated polyvinyl chloride resin that not only has high heat resistance and high mechanical strength but also is excellent in molding processability and is very easy to soften and additionally enables production of a molded article with high gloss. The present invention relates to a chlorinated polyvinyl chloride resin, containing three components including a Acomponent, a Bcomponent, and a Ccomponent, and having a percentage of the Ccomponent (Ccomponent/(Acomponent+Bcomponent+Ccomponent)) of 8.0% or more and 30.0% or less, the three components being identified by measuring the chlorinated polyvinyl chloride resin by a solid echo method using pulse NMR at 150° C. to give a free induction decay curve ofH spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into three curves derived from the Acomponent, the Bcomponent, and the Ccomponent in order of shorter relaxation time using the least square method.

The present invention provides a chlorinated polyvinyl chloride resin that has resistance to thermal decomposition, provides excellent continuous productivity in molding, and imparts both processability and unevenness-preventing properties to a molded article. The present invention relates to a chlorinated polyvinyl chloride resin, containing three components including a Acomponent, a Bcomponent, and a Ccomponent, and having a percentage of the Ccomponent (Ccomponent/(Acomponent+Bcomponent+Ccomponent)) of less than 8.0%, the three components being identified by measuring the chlorinated polyvinyl chloride resin by a solid echo method using pulse NMR at 150° C. to give a free induction decay curve ofH spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into three curves derived from the Acomponent, the Bcomponent, and the Ccomponent in order of shorter relaxation time using the least square method.

Chlorinated vinyl chloride-based resin

The present invention provides a chlorinated polyvinyl chloride resin that enables excellent continuous productivity in molding and that enables a molded article to have both processability and unevenness-preventing properties. Provided is a chlorinated polyvinyl chloride resin having, in Raman measurement by Raman spectroscopy, an average of a ratio (A/B) of a peak intensity A observed in a range of 660 to 700 cmto a peak intensity B observed in a range of 600 to 650 cmof 0.50 to 2.00, and a standard deviation of the A/B of 0.090 or less.

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Yamaguchi, Japan

Kento Murakami