Red phosphorus flame retardant and nonflammable resinous...

Details Red phosphorus flame retardant and nonflammable resinous... Red phosphorus flame retardant and nonflammable resinous...

C - Chemistry, Metallurgy

01

B

400/7032, 6/18.1

C01B 25/023 (2006.01) C01B 25/00 (2006.01) C08K 3/02 (2006.01) C08K 3/32 (2006.01) C08K 9/02 (2006.01)

Patent

CA 1285104

RED PHOSPHORUS FLAME RETARDANT AND NONFLAMMABLE RESINOUS COMPOSITION CONTAINING THE SAME ABSTRACT OF THE DISCLOSURE A flame retardant comprising of spherical red phosphorus free of pulverized face which is directly produced in the form of fine powder by conversion of yellow phosphorus, without pulverizing process. The red phosphorus characterized by its surface state and shape entirely different from any prior pulverized red phosphorus has not only a high flame retarding ability, but also a superior combination of chemical and physical properties, particularly with regard to corrosion reistance, moisture resistance, mechanical strength and dielectric properties which make it highly valuable and useful as a flame retardant for various nonflammable resinous compositions used in electric articles including electronic parts, machines, automobiles and buildings. The flame retardant is desirably coated with thermosetting rein and/or hydroxide of aluminum and/or zinc, thereby greatly improved in its stability.

535782

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