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1. 发明申请

US20150240040A1 CALCIUM CARBONATE FILLER FOR RESIN, AND RESIN COMPOSITION CONTAINING SAID FILLER 有权
标题翻译：用于树脂的碳酸钙填料和含有填料的树脂组合物
公开(公告)号：US20150240040A1
公开(公告)日：2015-08-27
申请号：US14432310
申请日：2013-10-11
申请人： MARUO CALCIUM CO., LTD.
发明人： Hidemitsu Kasahara , Shigeo Takiyama
IPC分类号： C08J5/18 , C08K9/04 , C08K3/26
CPC分类号： C08J5/18 , C01F11/18 , C01F11/185 , C01P2004/03 , C01P2004/51 , C01P2006/12 , C01P2006/60 , C01P2006/82 , C08J2367/02 , C08J2367/03 , C08K3/26 , C08K9/04 , C08K2003/265 , C08K2201/003 , C08K2201/006 , C09C1/021 , Y10T428/2982 , C08L67/02
摘要： The calcium carbonate filler for a resin is provided in which a volatile component such as water present in a surface of calcium carbonate is likely to be degassed even when the filler is incorporated into and kneaded with a resin having high processing temperature at a high concentration, and foaming or the like can be suppressed. In particular, the calcium carbonate filler is useful in optical fields that require reflectivity and light resistance.The calcium carbonate filler for a resin has a content rate of particles having a particle diameter of 0.26 μm or less is 30% or less in a number particle size distribution diameter measured from an electron micrograph, and satisfies the following expressions (a) Dms5/Dmv5≦3.0, (b) 1.0≦Sw≦10.0 (m2/g) and (c) Dma≦5.0 (% by volume): Dms5: a 5% diameter (μm) accumulated from a small particle side in a volume particle size distribution measured with a laser diffraction particle size distribution measurement device; Dmv5: a 5% diameter (μm) accumulated from a small particle side in a number particle size distribution in a particle diameter measured with an electron microscope; Sw: a BET specific surface area (m2/g); and Dma: a content rate (% by volume) of particles having a particle diameter of 3 μm or more in a volume particle size distribution measured with a laser diffraction particle size distribution measurement device.
摘要翻译：提供了一种用于树脂的碳酸钙填料，其中存在于碳酸钙表面中的挥发性成分例如即使当填料掺入并且以高浓度处理温度高的树脂捏合时也可能脱气，并且可以抑制发泡等。特别地，碳酸钙填料可用于需要反射率和耐光性的光场。用于树脂的碳酸钙填料在从电子显微镜照片测得的数量粒度分布直径中，粒径为0.26μm以下的粒子的含有率为30％以下，满足下式（a）Dms5 / Dmv5＆nlE; 3.0，（b）1.0＆nlE; Sw＆nlE; 10.0（m2 / g）和（c）Dma＆NlE; 5.0（体积％）：Dms5：从体积颗粒中的小颗粒侧积累的5％直径用激光衍射粒度分布测量装置测量尺寸分布; Dmv5：以电子显微镜测定的粒径的数量粒径分布中从小粒子侧积累的5％直径（μm） Sw：BET比表面积（m2 / g）; 和Dma：使用激光衍射粒度分布测定装置测定的体积粒径分布中粒径为3μm以上的粒子的含有率（体积％）。

2. 发明授权

US11186699B2 Calcium carbonate filler for resins, and resin composition containing same 有权
公开(公告)号：US11186699B2
公开(公告)日：2021-11-30
申请号：US16348625
申请日：2017-09-07
申请人： Maruo Calcium Co., Ltd.
发明人： Kazuya Yamamoto , Hidemitsu Kasahara
IPC分类号： C08K3/26 , C09C1/02 , C01F11/18 , C08K9/04 , C08L23/00 , C08L67/00 , C08L81/04
摘要： Provided is a calcium carbonate filler for resins that has uniform particles, high dispersibility and thermal stability, and, in particular, excellent smoothness, peelability, resistance to detachment, and the like and is useful as an antiblocking material. The calcium carbonate filler for resins includes calcium carbonate particles and satisfies formulae (a) to (e) below: (a) 1.0≤Sw≤12.0 (m2/g); (b) 0.1≤Dx≤5.0 (μm); (c) 0.1≤Dy≤5.0 (μm); (d) 0.8≤Dy/Dx≤3.5; and (e) 0.1≤Tw≤0.8 (% by weight), where Sw is a BET specific surface area (m2/g); Dx is a primary particle diameter (μm) expressed as a calculation formula: Dx=6/(2.7·Sw); Dy is a 50% diameter (μm); and Tw is a thermal weight loss (% by weight) between 100 and 300° C.

3. 发明申请

US20190352485A1 CALCIUM CARBONATE FILLER FOR RESINS, AND RESIN COMPOSITION CONTAINING SAME 审中-公开
公开(公告)号：US20190352485A1
公开(公告)日：2019-11-21
申请号：US16348625
申请日：2017-09-07
申请人： Maruo Calcium Co., Ltd.
发明人： Kazuya Yamamoto , Hidemitsu Kasahara
IPC分类号： C08K3/26
摘要： Provided is a calcium carbonate filler for resins that has uniform particles, high dispersibility and thermal stability, and, in particular, excellent smoothness, peelability, resistance to detachment, and the like and is useful as an antiblocking material. The calcium carbonate filler for resins includes calcium carbonate particles and satisfies formulae (a) to (e) below: (a) 1.0≤Sw≤12.0 (m2/g); (b) 0.1≤Dx≤5.0 (μm); (c) 0.1≤Dy≤5.0 (μm); (d) 0.8≤Dy/Dx≤3.5; and (e) 0.1≤Tw≤0.8 (% by weight), where Sw is a BET specific surface area (m2/g); Dx is a primary particle diameter (μm) expressed as a calculation formula: Dx=6/(2.7·Sw); Dy is a 50% diameter (μm); and Tw is a thermal weight loss (% by weight) between 100 and 300° C.

4. 发明授权

US09926428B2 Calcium carbonate filler for resin and resin composition including said filler 有权
公开(公告)号：US09926428B2
公开(公告)日：2018-03-27
申请号：US15116013
申请日：2015-02-20
申请人： MARUO CALCIUM CO., LTD.
发明人： Kouhei Sako , Hidemitsu Kasahara
IPC分类号： C08K3/26 , C08L67/02 , C08K9/04 , C01F11/18 , C09C1/02
CPC分类号： C08K3/26 , C01F11/18 , C01P2004/51 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/37 , C01P2006/60 , C01P2006/62 , C01P2006/64 , C01P2006/90 , C08K9/04 , C08K2003/265 , C08K2201/005 , C08K2201/006 , C08L67/00 , C08L67/02 , C09C1/021
摘要： Provided is a calcium carbonate filler which gives films and the like excellent in moldability, dispersibility, gasmark (bubbles), hue, and further, excellent in optical properties such as reflectivity and light resistance when incorporated into a resin to prepare a resin composition.

5. 发明授权

US09815953B2 Calcium carbonate filler for resin, and resin composition containing said filler 有权
公开(公告)号：US09815953B2
公开(公告)日：2017-11-14
申请号：US14432310
申请日：2013-10-11
申请人： MARUO CALCIUM CO., LTD.
发明人： Hidemitsu Kasahara , Shigeo Takiyama
IPC分类号： C08K3/26 , C09C1/02 , B32B5/16 , C08J5/18 , C01F11/18 , C08K9/04
CPC分类号： C08J5/18 , C01F11/18 , C01F11/185 , C01P2004/03 , C01P2004/51 , C01P2006/12 , C01P2006/60 , C01P2006/82 , C08J2367/02 , C08J2367/03 , C08K3/26 , C08K9/04 , C08K2003/265 , C08K2201/003 , C08K2201/006 , C09C1/021 , Y10T428/2982 , C08L67/02
摘要： The calcium carbonate filler for a resin is provided in which a volatile component such as water present in a surface of calcium carbonate is likely to be degassed even when the filler is incorporated into and kneaded with a resin having high processing temperature at a high concentration, and foaming or the like can be suppressed. In particular, the calcium carbonate filler is useful in optical fields that require reflectivity and light resistance.The calcium carbonate filler for a resin has a content rate of particles having a particle diameter of 0.26 μm or less is 30% or less in a number particle size distribution diameter measured from an electron micrograph, and satisfies the following expressions (a) Dms5/Dmv5≦3.0, (b) 1.0≦Sw≦10.0 (m2/g) and (c) Dma≦5.0 (% by volume): Dms5: a 5% diameter (μm) accumulated from a small particle side in a volume particle size distribution measured with a laser diffraction particle size distribution measurement device; Dmv5: a 5% diameter (μm) accumulated from a small particle side in a number particle size distribution in a particle diameter measured with an electron microscope; Sw: a BET specific surface area (m2/g); and Dma: a content rate (% by volume) of particles having a particle diameter of 3 μm or more in a volume particle size distribution measured with a laser diffraction particle size distribution measurement device.

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