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...
Patent
1989-07-25
1991-06-25
Locker, Howard J.
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...
252601, 252602, 252609, 260DIG24, 423322, 423323, 427221, 428407, 523205, 524 80, C08K 332, C09K 2100, C01B 2501, C01B 2502
Patent
active
050267574
ABSTRACT:
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 resistance, 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.
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Kanayama Atsushi
Sakon Ichiro
Sekiguchi Masao
Locker Howard J.
Rinkagaku Kogyo Co., Ltd.
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