JP2007002265A5 - - Google Patents
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- JP2007002265A5 JP2007002265A5 JP2006275936A JP2006275936A JP2007002265A5 JP 2007002265 A5 JP2007002265 A5 JP 2007002265A5 JP 2006275936 A JP2006275936 A JP 2006275936A JP 2006275936 A JP2006275936 A JP 2006275936A JP 2007002265 A5 JP2007002265 A5 JP 2007002265A5
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- average molecular
- molecular weight
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- weight
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Claims (5)
前記表面部分のゲルパーミエーションクロマトグラフ法のチャートが二山又はショルダーを有することを特徴とするスチレン系発泡性樹脂粒子。 The weight of the central portion forming the surface portion forming 1/5 from the surface divided into 5 equal parts from the surface of the particle to the center is 1/5 from the center toward the surface. Higher than average molecular weight,
A styrenic foamable resin particle, wherein the surface portion has a gel permeation chromatographic chart having two peaks or a shoulder.
前記表面部分の重量平均分子量が３００，０００〜４５０，０００の範囲であり、
前記表面部分の重量平均分子量が、前記中心部分の重量平均分子量に対して、１．２倍以上大きいことを特徴とする請求項１記載のスチレン系発泡性樹脂粒子。 The central portion has a weight average molecular weight in the range of 200,000 to 300,000;
The surface portion has a weight average molecular weight in the range of 300,000-450,000,
2. The styrenic expandable resin particle according to claim 1, wherein a weight average molecular weight of the surface portion is 1.2 times or more larger than a weight average molecular weight of the center portion.
前記表面部分の、ＧＰＣ／ＭＡＬＬＳ法により測定したｌｏｇ（Ｒ．Ｍ．Ｓ半径）とｌｏｇ（ＭＷ）との相関式の傾きが、０．５３以下であることを特徴とするスチレン系発泡性樹脂粒子。 The weight of the center part forming the surface part formed from the surface of the particle equally divided into 5 to 1/5 from the surface to 1/5 from the center to the surface from the center to 1/5. Higher than average molecular weight,
It said surface portion, the slope of the correlation equation between log measured by GPC / MALLS method (R.M.S radius) and log (MW) is a styrene-based resin foam, characterized in that at 0.53 or less particle.
A styrene foam-molded article obtained by molding the styrene foam beads according to claim 4 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006275936A JP2007002265A (en) | 2002-05-08 | 2006-10-10 | Expandable styrene resin particles, expandable beads, and foamed article |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002132623 | 2002-05-08 | ||
| JP2002242015 | 2002-08-22 | ||
| JP2002381173 | 2002-12-27 | ||
| JP2006275936A JP2007002265A (en) | 2002-05-08 | 2006-10-10 | Expandable styrene resin particles, expandable beads, and foamed article |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003129891A Division JP3926289B2 (en) | 2002-05-08 | 2003-05-08 | Styrenic expandable resin particles, expanded beads and expanded molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007002265A JP2007002265A (en) | 2007-01-11 |
| JP2007002265A5 true JP2007002265A5 (en) | 2007-03-15 |
Family
ID=37688138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006275936A Pending JP2007002265A (en) | 2002-05-08 | 2006-10-10 | Expandable styrene resin particles, expandable beads, and foamed article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007002265A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5824263B2 (en) * | 2010-07-16 | 2015-11-25 | 株式会社カネカ | Expandable thermoplastic resin particles |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02173130A (en) * | 1988-12-27 | 1990-07-04 | Idemitsu Petrochem Co Ltd | Styrene-based foam |
| JP3573473B2 (en) * | 1993-10-13 | 2004-10-06 | 旭化成ケミカルズ株式会社 | Styrene resin for foam |
| JP3054017B2 (en) * | 1993-12-27 | 2000-06-19 | 積水化成品工業株式会社 | Expandable styrene polymer particles |
| JP3474995B2 (en) * | 1996-02-15 | 2003-12-08 | 鐘淵化学工業株式会社 | Method for producing expandable styrene polymer particles |
| JP3729560B2 (en) * | 1996-05-27 | 2005-12-21 | 旭化成ケミカルズ株式会社 | Styrenic resin composition |
| JPH1135636A (en) * | 1997-07-24 | 1999-02-09 | Idemitsu Petrochem Co Ltd | Styrene-based polymer having long-chain branched structure and its production |
| JP4401456B2 (en) * | 1998-10-23 | 2010-01-20 | ダイセル化学工業株式会社 | Styrenic resin composition and molding sheet using the same |
| JP2001170945A (en) * | 1999-12-20 | 2001-06-26 | Sumitomo Chem Co Ltd | Method for manufacturing thermoplastic resin foamed molded object |
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2006
- 2006-10-10 JP JP2006275936A patent/JP2007002265A/en active Pending
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