C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/1, 400/5015,
C09K 3/00 (2006.01) C08K 5/098 (2006.01) C08K 5/16 (2006.01) C08K 5/3492 (2006.01) C08K 9/04 (2006.01)
Patent
CA 1110439
ABSTRACT OF THE DISCLOSURE Process for preparation of smoke retardant compo- sition containing an amine molybdate and cupric oxalate. According to the process of this invention, the individual components of the composition are synthesized in a common reaction slurry, thereby, resulting in their intimate assoc- iation with one another. This process generally involves reacting in this common reaction slurry an appropriate amine with a molybdenum compound, such as molybdenum trioxide, molybdic acid, an ammonium or alkali metal salt of molybdic acid or mixtures thereof. Oxalic acid and cupric sulfate can thereafter be introduced into this reaction medium. The amine and the molybdenum containing compounds will react with one another thereby forming an amine molybdate complex. The oxalic acid and cupric sulfate will react with one another thereby forming cupric oxalate and sulfuric acid. The generation of sulfuric acid during this latter reaction serves to stabilize the amine molybdate thus rendering it more readily acceptiblize for use in the smoke retardant compositions of this invention. The process parameters and - 1 - relative proportion of ingredients of the above synthesis are carefully adjusted so that they yield a coherent particulate material comprising cupric oxalate and amine molybdate in intimate association. Compositions prepared in the above manner are highly effective smoke retardants for vinyl halide polymers.
319568
Goodrich (b.,f.) Company (the)
Sherman
LandOfFree
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