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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Sekiguchi; Masao
Address:
Uozu, JP
No. of patents:
3
Patents:












Patent Number Title Of Patent Date Issued
5041490 Method for producing red phosphorus flame retardant and nonflammable resinous composition August 20, 1991
Red phosphorus flame retardants for synthetic resin are produced by a method comprising the steps of heating yellow phosphorus at temperatures of 250.degree. to 600.degree. C. to effect a partial conversion of yellow phosphorus to red phosphorus; removing unconverted yellow phosphorus; a
5026757 Red phosphorus flame retardant and nonflammable resinous composition containing the same June 25, 1991
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
4879067 Red phosphorus flame retardant and nonflammable resinous composition containing the same November 7, 1989
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










 
 
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