Sekisui Chemical Co., Ltd.

Tokuyama Sekisui Co., Ltd.

Mitsui Chemicals, Inc.

Sekisui Chemical Hokkaido Co., Ltd.

Kenichi Matsumura

Norikazu Mashino

Atsushi Seiki

Yasunari Kusaka

Atsushi Kawano

Kei Yoshiyama

Nami Nakajima

Isao Higuchi

Akihiro Niki

Ryota Yamasugi

Kento Murakami

Takehisa Sugaya

Nozomi Eguchi

Masahiko Yamagata

Hideyuki Takahashi

Yoshiyuki Kosaka

Yasuhiro Kawaguchi

Katsuhiro Nakazato

Takashi Shinjo

Masayuki Imamura

The present invention provides a chlorinated polyvinyl chloride resin that provides a molded article having excellent heat cycle characteristics and excellent weather resistance, as well as a resin composition for molding and a molded article each including the chlorinated polyvinyl chloride resin. 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 300 to 340 cmto a peak intensity B observed in a range of 1,450 to 1,550 cmof 3.5 to 40.0 in Raman imaging measurement by Raman spectroscopy.

Chlorinated vinyl chloride resin

The present invention provides a chlorinated polyvinyl chloride resin composition capable of providing a molded article that is excellent in discoloration resistance and corrosion resistance and is not likely to cause environmental pollution as the amount of metal leached therefrom is small, and a chlorinated polyvinyl chloride resin molded article. The present invention relates to a chlorinated polyvinyl chloride resin composition containing: a chlorinated polyvinyl chloride resin; a thermal stabilizer; and at least one thioglycolic acid compound selected from the group consisting of thioglycolic acid and thioglycolic acid esters.

Chlorinated vinyl chloride resin composition and chlorinated vinyl chloride resin molded body

The present invention provides a chlorinated polyvinyl chloride resin that enables the production of a molded article that maintains high adhesion strength even when used in a form subjected to high pressure and is less susceptible to defects such as cracks due to insufficient strength, as well as a resin composition for molding and a molded article each including the chlorinated polyvinyl chloride resin. 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 300 to 340 cmto a peak intensity B observed in a range of 1,450 to 1,550 cmof 0.1 or more and 3.5 or less in Raman imaging measurement by Raman spectroscopy.

Chlorinated vinyl chloride-based 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.

The present invention provides a resin composition for molding, including a chlorinated polyvinyl chloride and a thermal stabilizer, the chlorinated polyvinyl chloride having structural units (a) to (c) represented by formulae (a) to (c) shown below:&#x2014;CCl&#x2014;&#x2003;&#x2003;(a),&#x2014;CHCl&#x2014;&#x2003;&#x2003;(b),&#x2014;CH&#x2014;&#x2003;&#x2003;(c),

Resin composition for molding use

The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) &#x2014;CCl&#x2014;, a structural unit (b) &#x2014;CHCl&#x2014;, and a structural unit (c) &#x2014;CH&#x2014;, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less. The thermal stabilizer contains at least one of a compound represented by the formula CaMg(OH)where x satisfies the inequality 0&#x3c;x&#x3c;1 and a compound represented by the formula CaMgO where y satisfies the inequality 0&#x3c;y&#x3c;1.

Molding resin composition including chlorinated vinyl chloride-based resin, and molded article thereof

The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) &#x2014;CCl&#x2014;, a structural unit (b) &#x2014;CHCl&#x2014;, and a structural unit (c) &#x2014;CH&#x2014;, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less. The thermal stabilizer contains at least one of a compound represented by the formula CaZn(OH)where x satisfies the inequality 0&#x3c;x&#x3c;1 and a compound represented by the formula CaZnO where y satisfies the inequality 0&#x3c;y&#x3c;1.

The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) &#x2014;CCl&#x2014;, a structural unit (b) &#x2014;CHCl&#x2014;, and a structural unit (c) &#x2014;CH&#x2014;, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less. The thermal stabilizer contains at least one of a compound represented by the formula Ca&#x2014;Zn(OH)where x satisfies the inequality 0&#x3c;x&#x3c;1 and a compound represented by the formula CaZnO where y satisfies the inequality 0&#x3c;y&#x3c;1.

The present invention has its object to provide a masterbatch for foam molding, which can be suitably used for molding processes involving high shearing force, such as kneading molding, calender molding, extrusion molding, and injection molding, which shows a high expansion ratio, and which yields a foamed product with a good appearance. The present invention also has its object to provide a foamed product using the masterbatch for foam molding. A masterbatch for foam molding comprises a base resin and a thermally expandable microcapsule, the base resin being a thermoplastic resin having a melting point of 100&#xb0; C. or higher, the masterbatch containing 10 to 230 parts by weight of the thermally expandable microcapsule to 100 parts by weight of the base resin, and the masterbatch having a true density of 0.80 g/cmor more, a bulk density of 0.35 g/cmor more, and a masterbatch size of 450 mg/30 pieces or more.

Masterbatch for foam molding and molded foam

It is an object of the present invention to provide a resin composition for a toner and a toner excellent in low temperature fixation property, high temperature offset resistance, blocking resistance, and excellent in coloration. The present invention relates to a resin composition for a toner, which contains a crystalline polymer having a melting point of 180 to 280&#xb0; C. and heat absorption of 25 to 150 mJ/mg at a melting point measured by a differential scanning calorimeter (DSC) and a non-crystalline polyester having a glass transition temperature of 30 to 80&#xb0; C.

Resin composition for toner, and toners

The present invention has for its object to provide a resin composition for toner exhibiting excellent low temperature fixation performance, high temperature offset-resistance and anti-blocking performance and enabling a satisfactory color development, as well as a toner thereof. A resin composition for toner which compromises a polymer component capable of forming a physical crosslinking structure and a polyester not forming a physical crosslinking structure but having a glass transition point of 30 to 80&#xb0; C. or a melting point of 50 to 120&#xb0; C.

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Yamaguchi, Japan

Kenichi Matsumura