Process for producing polymer bound hindered amine light...

Details Process for producing polymer bound hindered amine light... Process for producing polymer bound hindered amine light...

C - Chemistry, Metallurgy

08

F

402/219

C08F 8/30 (2006.01) C08F 220/50 (2006.01)

Patent

CA 1325493

ABSTRACT N-(polyalkyl-4-piperidinyl)imide containing polymer is prepared by blending together a mixture of a polymer containing anhydride functions and a 4-amino-polyalkylpiperidine or its 1-alkyl or 1-acyl derivatives and heating said materials in the blend, either prior to or during the blending step to the molten stage of the polymer; thereafter, heating said blend above 180°C for a sufficient time to form the product. All volatile by-products are removed either simultaneously or subsequently with the above 180°C heating step.

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