发明名称 |
Coated magnesium hydroxide. |
摘要 |
<p>A process for modifying the surface characteristics of magnesium hydroxide which comprises heating with agitation a mixture comprising magnesium hydroxide having a crystallite size of less that 500 ANGSTROM (measured by X-ray line broadening),which crystallites form primary particles having a median size of from 0.5 to 10 mu m, and whose surface area is more than 10 m<2>/g and a salt of an organic acid or an amide thereof said organic acid containng from 6 to 25 carbon atoms in order to wet and coat the surface of the magnesium hydroxide particles. A further aspect of the invention provides a flame resistant and smoke suppressed plastics composition which comprises a polyolefin or a polyamide having dispersed therein magnesium hydroxide having a crystallite size of less than 500 ANGSTROM (measured by X-ray line broadening) which crystallites form primary particles having a median size of from 0.5 to 10 mu m, and whose surface area is more than 10 m<2>/g and which primary particles have been wetted and coated with a salt or an amide of an organic acid said organic acid containing from 6 to 25 carbon atoms.</p> |
申请公布号 |
EP0243201(A2) |
申请公布日期 |
1987.10.28 |
申请号 |
EP19870303646 |
申请日期 |
1987.04.24 |
申请人 |
STEETLEY QUARRY PRODUCTS LIMITED |
发明人 |
WATSON,COLIN LLOYD;HORNSBY,PETER RIDSDALE;HOLLOWAY,LESLIE REDMAN |
分类号 |
C01F5/14;C08K9/04;C09C1/02;C09C3/08 |
主分类号 |
C01F5/14 |
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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