Magnesium process

Details Magnesium process Magnesium process

1997-05-07

1999-02-16

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

423635, 423636, 423640, C01F 514

Patent

active

058721690

ABSTRACT:
The present invention relates to a flame retardant quality magnesium hydroxide having a BET surface area of less than approximately 10 m.sup.2 per gram (uncoated), an average particle size of approximately 0.5 to 10.0 micron, and less than approximately 0.5% of particles over 10 micron (average particle size measured by laserlight scattering method), and a substantial number of crystals which are generally ovoid in cross section. A process for producing a flame retardant quality magnesium hydroxide is also described.

REFERENCES:
patent: 4145404 (1979-03-01), Miyata
patent: 4698379 (1987-10-01), Nakaya
patent: 5025042 (1991-06-01), Yoshida
patent: 5143965 (1992-09-01), Mertz
patent: 5461101 (1995-10-01), Rothon
patent: 5474602 (1995-12-01), Brown
Derwent Abstract of JP 04-089308 of Mar. 1992.
Derwent Abstract 8800660 of Eisler, J. of Oct. 1990.

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