公开(公告)号：US09611147B2

公开(公告)日：2017-04-04

申请号：US13448271

申请日：2012-04-16

申请人： Raymond E. Foscante ,  Neil Maynard Johnson ,  Yucel Burdurlu Tavolara ,  Douglas Malcolm Harless ,  Melanie Astrid Micha-Schama

发明人： Raymond E. Foscante ,  Neil Maynard Johnson ,  Yucel Burdurlu Tavolara ,  Douglas Malcolm Harless ,  Melanie Astrid Micha-Schama

IPC分类号： C01B25/36 ,  C09C1/40

CPC分类号： C01B25/36 ,  C01P2006/12 ,  C01P2006/19 ,  C09C1/40

摘要： APs are made by binary condensation via base-to-acid or acid-to-base routes. In the base-to-acid route, an aluminum hydroxide slurry is added to phosphoric acid that reacts to produce an aluminum phosphate condensate. In the acid-to-base route, phosphoric acid is added to an aluminum hydroxide slurry that reacts to produce an aluminum phosphate condensate. In an alternative base-to-acid route, an acidic aluminum phosphate is first made by adding phosphoric acid to a first amount of aluminum hydroxide slurry, and such acidic aluminum phosphate is added to a remaining amount of aluminum hydroxide slurry to react and produce an aluminum phosphate condensate. The reactions can be controlled to form an in-situ layered aluminum phosphate. So-formed APs can be amorphous, crystalline, or a combination thereof, and have low oil absorption and surface area, making them particularly useful in such end-use applications as extender pigments in coating compositions, replacing up to 70 wt % of TiO2.

公开(公告)号：US20130274400A1

公开(公告)日：2013-10-17

申请号：US13448271

申请日：2012-04-16

申请人： Raymond E. Foscante ,  Neil Maynard Johnson ,  Yucel Burdurlu Tavolara ,  Douglas Malcolm Harless ,  Melanie Astrid Micha-Schama

发明人： Raymond E. Foscante ,  Neil Maynard Johnson ,  Yucel Burdurlu Tavolara ,  Douglas Malcolm Harless ,  Melanie Astrid Micha-Schama

IPC分类号： C01B25/36 ,  C09D5/00 ,  C08K3/32

CPC分类号： C01B25/36 ,  C01P2006/12 ,  C01P2006/19 ,  C09C1/40

摘要： APs are made by binary condensation via base-to-acid or acid-to-base routes. In the base-to-acid route, an aluminum hydroxide slurry is added to phosphoric acid that reacts to produce an aluminum phosphate condensate. In the acid-to-base route, phosphoric acid is added to an aluminum hydroxide slurry that reacts to produce an aluminum phosphate condensate. In an alternative base-to-acid route, an acidic aluminum phosphate is first made by adding phosphoric acid to a first amount of aluminum hydroxide slurry, and such acidic aluminum phosphate is added to a remaining amount of aluminum hydroxide slurry to react and produce an aluminum phosphate condensate. The reactions can be controlled to form an in-situ layered aluminum phosphate. So-formed APs can be amorphous, crystalline, or a combination thereof, and have low oil absorption and surface area, making them particularly useful in such end-use applications as extender pigments in coating compositions, replacing up to 70 wt % of TiO2.

摘要翻译： AP通过基于酸或酸碱的路线通过二元缩合制备。 在酸碱路线中，向反应生成磷酸铝缩合物的磷酸中加入氢氧化铝浆料。 在酸碱路线中，将磷酸加入氢氧化铝浆料中，该铝氢氧化物浆料反应生成磷酸铝缩合物。 在替代的基础酸途径中，首先通过向第一量的氢氧化铝浆料中加入磷酸制备酸性磷酸铝，并将这种酸性磷酸铝加入到剩余量的氢氧化铝浆料中以反应并产生 磷酸铝缩合物。 可以控制反应以形成原位层状磷酸铝。 如此形成的AP可以是无定形的，结晶的或其组合，并且具有低的吸油率和表面积，使得它们在涂料组合物中作为增量剂颜料的最终用途应用中特别有用，代替多达70重量％的TiO 2。