Title:
MAGNESIUM HYDROXIDE FLAME RETARDANT AND FLAME-RETARDANT POLYMER COMPOSITION
Document Type and Number:
Japanese Patent JP2009249389
Kind Code:
A
Abstract:
To provide a magnesium hydroxide flame retardant being excellent in flame retardancy and capable of being easily dispersed in a polymer such as a resin and a rubber.
(A) magnesium hydroxide having a BET specific surface area of less than 10 m2/g and an average primary particle diameter of 0.5 m or more and (B) magnesium hydroxide being subjected to surface treatment by a lipophilic surface treating agent, having a BET specific surface area of 10 m2/g or more, having a BET specific surface area 2.5 times or more of the BET specific surface area of magnesium hydroxide (A) and having an average primary particle diameter of 0.4 m or less are mixed such that a weight ratio (magnesium hydroxide (A)/magnesium hydroxide (B)) becomes 10/90-70/30.
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Inventors:
KASUNO KOICHI
TACHIKA MASAHIKO
SHIOKAWA YASUHIRO
TACHIKA MASAHIKO
SHIOKAWA YASUHIRO
Application Number:
JP2008094636A
Publication Date:
October 29, 2009
Filing Date:
April 01, 2008
Export Citation:
Assignee:
SHIRAISHI CALCIUM KAISHA LTD
International Classes:
C08K3/22; C01F5/14; C08K9/04; C08L101/00
Attorney, Agent or Firm:
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Miyazaki saki main tax
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