发明名称 |
FOAMABLE STYRENE RESIN PARTICLE, PRODUCTION METHOD THEREOF, FOAMED PARTICLE, AND LIGHTWEIGHT CONCRETE |
摘要 |
PROBLEM TO BE SOLVED: To provide a foamable styrene resin particle for producing lightweight concrete, which particle can ensure satisfactory foamability even when the particle size thereof is small.SOLUTION: The foamable styrene resin particle for producing lightweight concrete contains an acrylic ester-derived resin component and a foaming agent and has the following characteristics. The characteristic (1) is that the foamable styrene resin particle has 200-500 μm average particle diameter. The characteristic (2) is that when an infrared absorption spectrum of the surface layer thereof and that of the central part thereof are measured by a microscopic transmission imaging method to obtain absorbance D1730 at 1730 cmand absorbance D1600 at 1600 cmfrom the infrared absorption spectrum and an absorbance ratio (D1730/D1600) (A) of the surface layer and another absorbance ratio (D1730/D1600) (B) of the central part are calculated, (i) the absorbance ratio (D1730/D1600) (A) is larger than the absorbance ratio (D1730/D1600) (B) and (ii) the absorbance ratio (D1730/D1600) (A) is within 0.15-0.5. |
申请公布号 |
JP2014162805(A) |
申请公布日期 |
2014.09.08 |
申请号 |
JP20130032138 |
申请日期 |
2013.02.21 |
申请人 |
SEKISUI PLASTICS CO LTD |
发明人 |
SUZUKI YUSUKE |
分类号 |
C08J9/18;C04B16/08;C04B28/02 |
主分类号 |
C08J9/18 |
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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