RED PHOSPHORUS-BASE FLAME RETARDANT FOR EPOXY RESINS, RED...

Details RED PHOSPHORUS-BASE FLAME RETARDANT FOR EPOXY RESINS, RED... RED PHOSPHORUS-BASE FLAME RETARDANT FOR EPOXY RESINS, RED...

2005-02-22

2005-02-22

Buttner, David J. (Department: 1712)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C428S403000, C428S413000, C428S921000, C252S601000, C252S604000, C252S609000, C523S204000, C523S205000, C524S414000

Reexamination Certificate

active

06858300

ABSTRACT:
The red phosphorus base flame retardant for an epoxy resin is provided, which has red phosphorus particles coated with a thermosetting resin containing an anhydrous zinc compound. The coated red phosphorus has properties that a slurry having the coated red phosphorus dispersed in 10% by weight into water at 20° C. has an electric conductivity of 30 μs/cm or below, the slurry having been left standing at 80° C. for 20 hours has an electric conductivity of 150 μs/cm or below, and when 80 ml of water is added to 8 g of the coated red phosphorus and heated at 80° C. for 20 hours, a concentration of PO4ions eluted is 10 ppm or below.

REFERENCES:
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English Translation, JP-04-130007, Mita et al., Aug. 6, 1996.

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