Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-05-27
1978-07-04
Person, Sandra M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
106306, 106308F, 106308S, C08K 322, C08K 904
Patent
active
040987620
ABSTRACT:
A novel magnesium hydroxide of the formula Mg(OH).sub.2 having (i) a strain in the (101) direction of not more than 3.0 .times. 10.sup.-3, (ii) a crystallite size in the (101) direction of more than 800 A, and (iii) a specific surface area of less than 20 m.sup.2 /g. The magnesium hydroxide, if desired as coated with anionic surfactants, is useful, for example, as fire retardants for thermoplastic synthetic resins and aqueous paints. The novel magnesium hydroxide is prepared by heating in an aqueous medium at an elevated pressure a novel basic magnesium chloride or nitrate of this invention expressed by the formula Mg(OH).sub.2-x A.sub.x.mH.sub.2 O wherein A is Cl or NO.sub.3, x is a number of more than 0 but less than 0.2, and m is a number of 0 to 6.
REFERENCES:
patent: 1084361 (1914-01-01), Ramoze
patent: 3067053 (1962-12-01), Tarantina
patent: 3816367 (1974-06-01), Larkin et al.
patent: 3941610 (1976-03-01), Maskal
Kuroda Masataka
Miyata Shigeo
Okada Akira
Okazaki Tosihumi
Takasu Mitsuo
Kyowa Chemical Industry Co. Ltd.
Person Sandra M.
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