Transitional alumina particulate materials from boehmite having a platlet shape

    公开(公告)号:NZ587683A

    公开(公告)日:2012-02-24

    申请号:NZ58768305

    申请日:2005-11-18

    Abstract: A method for forming alumina particulate material comprising: Providing a boehmite precursor and boehmite seeds in a suspension at a weight ratio not less than 60:40, the boehmite precursor comprising hydrated alumina and heat treating the suspension at temperatures greater than 120°C, converting the boehmite precursor in boehmite particulate material and calcining said particulate material to transform it into transitional alumina particulate material having a platelet shape and a secondary aspect ratio of not less than 3:1.

    28.
    发明专利
    未知

    公开(公告)号:BRPI0518199A

    公开(公告)日:2008-11-04

    申请号:BRPI0518199

    申请日:2005-10-17

    Abstract: A flame retardant polymer composite is disclosed. The composite includes a polymer base material and a flame retardant filler provided in the polymer base material, the flame retardant filler containing seeded boehmite particulate material having an aspect ratio of not less than 3:1.

    29.
    发明专利
    未知

    公开(公告)号:BRPI0509875A

    公开(公告)日:2007-10-16

    申请号:BRPI0509875

    申请日:2005-04-12

    Abstract: A boehmite particulate material is disclosed. The material is formed by a process that includes providing a boehmite precursor and boehmite seeds in a suspension, and heat treating the suspension to convert the boehmite precursor into boehmite particulate material. The boehmite particulate material has an aspect ratio of not less than 3:1.

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