Method for recycling discolored polyolefins

Details Method for recycling discolored polyolefins Method for recycling discolored polyolefins

C - Chemistry, Metallurgy

08

F

C08F 6/26 (2006.01) C08J 11/06 (2006.01) C08K 5/32 (2006.01)

Patent

CA 2048067

Polyolefins, especially those containing a phenolic antioxidant, are prone to discoloration upon improper processing at elevated temperatures or upon prolonged aging. Such discolored polyolefins can be recycled as essentially non-colored useful polymers by the addition thereto of a hydroxylamine of the formula T1T2NOH where T1 and T2 are independently e.g. alkyl, cycloalkyl, benzyl or substituted benzyl.

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