发明名称 |
TRANSPARENTIZATION AGENT COMPOSITION CONTAINING SORBITOL COMPOUND AND METHOD FOR PRODUCING POLYPROPYLENE RESIN COMPOSITION USING THIS SORBITOL COMPOUND |
摘要 |
The present invention relates to a transparentization agent composition, which is a mixture containing 100 parts by mass of a dibenzylidene sorbitol compound represented by the following general formula (I) having a particle diameter such that d 97 is from 30 µm to 200 µm and 5 to 200 parts by mass of tetrakis[3(3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxymethyl)methane, wherein the total for the two components is 50% by mass or more of the mixture. Furthermore, the present invention relates to a method for producing a polypropylene resin composition, including obtaining a polypropylene resin composition in which a dibenzylidene sorbitol compound represented by the following general formula (I) having a particle diameter such that d 97 is from 30 µm to 200 µm is incorporated in a polypropylene resin, by kneading a mixture containing 100 parts by mass of the polypropylene resin and 0.05 to 2 parts by mass of the dibenzylidene sorbitol compound by using a biaxial extruder at an extrusion temperature of from 220 to 250°C. |
申请公布号 |
EP2554591(A4) |
申请公布日期 |
2013.08.21 |
申请号 |
EP20110762504 |
申请日期 |
2011.03.08 |
申请人 |
ADEKA CORPORATION |
发明人 |
HARUNA, TORU;TANJI, NAOKO;MARTIN, DANIEL YATARO |
分类号 |
C08L23/10;C08K5/06;C08K5/107;C08K5/1575 |
主分类号 |
C08L23/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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