发明名称 |
METHOD FOR THE PRODUCTION OF FILLERS AND FLAME RETARDANTS BASED ON GIBBSITE AND APPLICATION IN PLASTICS |
摘要 |
A process is disclosed for producing aluminum hydroxide in the form of gibbsite in particular shapes, suitable for use as a filler, flame retardant and/or fibrous reinforcement. The process includes the steps of crystallizing gibbsite from a Bayer process sodium aluminate liquor, in the presence of an additive comprising either a hydroxycarboxilic acid for producing needle shaped, rod-like hydrargillite or in the presence of a polyalcohol, fatty acid or lithium compound for producing platy or tabular gibbsite.
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申请公布号 |
US5100641(A) |
申请公布日期 |
1992.03.31 |
申请号 |
US19890310259 |
申请日期 |
1989.02.13 |
申请人 |
VEREINIGTE ALUMINIUM-WERKE AKTIENGESELLSCHAFT |
发明人 |
SCHMIDT, HUBERTUS;HUSMANN, ALBRECHT |
分类号 |
C01F7/14;C08K3/20;C08K3/22 |
主分类号 |
C01F7/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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