Flame retarding polymers using cationized melamine...

Details Flame retarding polymers using cationized melamine... Flame retarding polymers using cationized melamine...

C - Chemistry, Metallurgy

08

J

400/3037, 400/50

C08J 3/20 (2006.01)

Patent

CA 1210180

ABSTRACT OF THE DISCLOSURE: A process for making self-extinguising thermoplas- tic materials based on synthetic polymeric substances by incorporation of red phosphorus into said materials, which comprises the following steps: - forming a ?concentrate? consisting of 30-70% of a ?mother polymeric substance? and of 70-30% of red phosphorus powder previously encapsulated in a modified cationized melamine resin; - incorporating said concentrate into a thermoplastic material to be made self-extinguising and consisting of at least 50% of a poly- meric substance similar to or consistent with the substance comprised in said concentrate, the amount of the above- mentioned concentrate being quantitatively so proportioned that the final self-extinguishing thermoplastic material con- tains 1-15% by weight of encapsulated red phosphorus.

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