JP2008524103A - 発泡大理石成形品及びその製造方法 - Google Patents
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Abstract
Description
したがって、本発明者らは、特定組成の人造大理石用発泡性組成物を製造し、前記発泡性組成物中のアクリル系樹脂を上部へ移動させて上部層に形成し、これを発熱反応により発泡させながら硬化することにより、軽くて、優れた施工性を有する発泡大理石成形品を開発するに至った。
本発明の他の目的は、優れた施工性を有する発泡大理石成形品を提供することにある。
本発明の更に他の目的は、別途の発泡剤を使うことなく、アクリル系樹脂が重合する間の発熱的性質を用いて発泡大理石成形品を製造する方法を提供することにある。
本発明の一具体例において、前記固体粒子は、無機充填物、マーブルチップ、及びこれらの混合物からなる群より選択される。
本発明の他の具体例において、前記アクリル系樹脂は、アクリル系単量体とポリアクリレートとの混合物である。
本発明の他の具体例において、前記組成物は、流動度約13ないし20cm/minである。
本発明の更に他の具体例では、アクリル系樹脂が上部に移動するに充分な時間放置する前に、前記発泡性スラリーを、通常の固体の人造大理石板表面上に注ぐ段階をさらに含む。
本発明において、前記アクリル系樹脂はアクリル系単量体と、これの重合物であるポリアクリレートとの混合物である。前記アクリル系単量体としては、例えば、メチルアクリレート、エチルアクリレート、ブチルアクリレート、メチルメタクリレート、エチルメタクリレート、イソプロピルメタクリレート、ブチルメタクリレート、2−エチルへキシルメタクリレートなどが挙げられる。前記ポリアクリレートは、前記アクリル系単量体の重
合体であり、特にポリメチルメタクリレート(PMMA)が最も好ましい。
前記無機充填物は、炭酸カルシウム、水酸化アルミニウム、シリカ、アルミナ、水酸化マグネシウムのように通常的に使われる無機粉末のうち、いずれも使用可能であり、特に水酸化アルミニウムが製品の外観を考慮して最も好ましい。
本発明の発泡大理石成形品の製造方法は、以下の順序により製造される。
として、1分間スラリーを流した後、その直径(cm)を測定した値である。流動度の単位は、「長さ/時間」である。本発明では、特に言及がない限り、流動度の単位にcm/minを用いる。本発明において用いられた流動度は、通常の粘度に換算されないが、流動度が高ければ、低い粘度を有する。即ち、スラリーの流動度が高いほど、粘度は低くなる。
本発明は下記の実施例によって更に容易に理解することができる。下記の実施例は本発明の例示のためのものであって、添付された特許請求の範囲により限定される保護範囲を制限するものではない。以下の実施例において、「部」及び百分率は、特に指定のない限り、「重量部」及び「重量%」を意味する。
ポリメチルメタクリレート10重量部とメチルメタクリレート90重量部とからなるアクリル系樹脂シロップ100重量部、水酸化アルミニウム10重量部、マーブルチップ10重量部、及びベンゾイルパーオキシド2重量部を混合して発泡人造大理石用スラリーを製造した。得られたスラリーの流動度は13.8cm/minであった。
ポリメチルメタクリレート30重量部とメチルメタクリレート70重量部とからなるアクリル系樹脂シロップ100重量部、水酸化アルミニウム100重量部、マーブルチップ
60重量部、及びベンゾイルパーオキシド2重量部を混合してスラリーを製造した。得られたスラリーの流動度は、11.3cm/minであった。これを成形セルに注入した上で、硬化させて、固体表面成形品を製造した。得られた固体表面成形品を前記実施例1と同様の大きさに切って重さを測定した結果、3,330gであった。
Claims (13)
- アクリル系樹脂約100重量部;
固体粒子約10ないし80重量部;及び
開始剤約0.1ないし10重量部
からなることを特徴とする発泡大理石用組成物。 - 前記固体粒子は、無機充填物、マーブルチップ、及びこれらの混合物からなる群より選択されることを特徴とする、請求項1に記載の組成物。
- 前記組成物は、流動度約13ないし20cm/minであることを特徴とする、請求項1に記載の組成物。
- 前記アクリル系樹脂は、アクリル系単量体とポリアクリレートとの混合物であることを特徴とする、請求項1に記載の組成物。
- 前記無機充填物は、炭酸カルシウム、水酸化アルミニウム、シリカ、アルミナ、水酸化マグネシウム、及びこれらの混合物からなる群より選択されることを特徴とする、請求項2に記載の組成物。
- 前記マーブルチップは、アクリル系樹脂約100重量部、無機充填物約100ないし200重量部、架橋剤約0.1ないし10重量部、及び開始剤約0.1ないし10重量部を混合し、この混合物を硬化させて硬化した人造大理石を形成し、その後、該硬化した人造大理石を粉砕することにより調製されたことを特徴とする、請求項2に記載の組成物。
- アクリル系樹脂、固体粒子、及び開始剤を混合して人造大理石用発泡性スラリーを製造し;
相対的に低比重のアクリル系樹脂を上部に移動させて上部層を形成する一方で相対的に高比重の固体粒子を下部に移動させて下部層を形成するに充分な時間、前記発泡性スラリーを放置し;そして
前記上部層に形成されたアクリル系樹脂を発熱反応により発泡させながら、発泡性スラリーを硬化する段階からなることを特徴とする発泡大理石成形品の製造方法。 - 前記固体粒子は、無機充填物、マーブルチップ、及びこれらの混合物からなる群より選択されることを特徴とする、請求項7に記載の製造方法。
- 前記組成物は、流動度が約13ないし20cm/minであることを特徴とする、請求項7に記載の製造方法。
- 前記アクリル系樹脂は、アクリル系単量体とポリアクリレートとの混合物であることを特徴とする、請求項7に記載の製造方法。
- アクリル系樹脂が上部に移動するに充分な時間放置する前に、前記製造された発泡性スラリーを通常の人造大理石板上に注ぐ段階をさらに含むことを特徴とする、請求項7に記載の製造方法。
- アクリル系人造大理石からなる第1の層;及び
不規則な気孔を有し、アクリル系樹脂からなる発泡構造の第2の層;
からなり、前記第2の層は第1の層上に積層して一体に形成されることを特徴とする発泡大理石成形品。 - 前記第2の層は、アクリル系樹脂を発泡させることによって形成されることを特徴とする、請求項12に記載の発泡大理石成形品。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR20040107878 | 2004-12-17 | ||
KR10-2004-0107878 | 2004-12-17 | ||
PCT/KR2005/004356 WO2006065107A1 (en) | 2004-12-17 | 2005-12-16 | Foamed marble article and method for preparing the same |
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JP2008524103A true JP2008524103A (ja) | 2008-07-10 |
JP4857282B2 JP4857282B2 (ja) | 2012-01-18 |
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JP2007546573A Expired - Fee Related JP4857282B2 (ja) | 2004-12-17 | 2005-12-16 | 発泡大理石成形品及びその製造方法 |
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US (1) | US7566492B2 (ja) |
EP (1) | EP1836143A4 (ja) |
JP (1) | JP4857282B2 (ja) |
KR (1) | KR100706640B1 (ja) |
CN (1) | CN101080371B (ja) |
RU (1) | RU2374197C2 (ja) |
WO (1) | WO2006065107A1 (ja) |
Cited By (1)
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JP2014076616A (ja) * | 2012-10-11 | 2014-05-01 | Panasonic Corp | 樹脂成形品の製造方法及び樹脂成形品 |
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EP1836051A4 (en) * | 2004-12-17 | 2008-10-29 | Cheil Ind Inc | FALSE MARBLE HAVING A COUNTERCOLLED LAYER IMITATING THE PLYWOOD, AND METHOD FOR PREPARING THE FALSE MARBLE |
KR100620280B1 (ko) * | 2005-05-30 | 2006-09-06 | 제일모직주식회사 | 천연석의 질감을 갖는 인조대리석 조성물 |
JP4913139B2 (ja) * | 2006-06-02 | 2012-04-11 | エルジー・ケム・リミテッド | 低比重素材をチップとして用いて天然石質感を具現した人造大理石及びその製造方法 |
CN102731140A (zh) * | 2011-04-06 | 2012-10-17 | 洛阳原生建筑工程技术有限公司 | 复合保温墙体夹心泡沫混凝土发泡剂及其制备方法 |
US9780357B2 (en) | 2012-04-19 | 2017-10-03 | Lg Chem, Ltd. | Silicon-based anode active material and secondary battery comprising the same |
JP5761761B2 (ja) | 2012-04-19 | 2015-08-12 | エルジー・ケム・リミテッド | 多孔性電極活物質、その製造方法及び二次電池 |
KR101578262B1 (ko) | 2012-07-24 | 2015-12-28 | 주식회사 엘지화학 | 다공성 규소계 전극 활물질 및 이를 포함하는 이차전지 |
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EP3075770A1 (de) * | 2015-03-31 | 2016-10-05 | Evonik Röhm GmbH | Herstellung feinporiger pmma-schäume mittels verwendung von nukleierungsmitteln |
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CN108395275B (zh) * | 2018-04-04 | 2020-12-08 | 泰州峰飞机械设备有限公司 | 一种轻质多孔大理石复合砖的制备方法 |
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KR20060069324A (ko) | 2006-06-21 |
JP4857282B2 (ja) | 2012-01-18 |
RU2007121904A (ru) | 2009-01-27 |
US20070243369A1 (en) | 2007-10-18 |
EP1836143A4 (en) | 2013-06-05 |
US7566492B2 (en) | 2009-07-28 |
KR100706640B1 (ko) | 2007-04-12 |
CN101080371B (zh) | 2011-07-06 |
WO2006065107A1 (en) | 2006-06-22 |
RU2374197C2 (ru) | 2009-11-27 |
EP1836143A1 (en) | 2007-09-26 |
CN101080371A (zh) | 2007-11-28 |
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