Process for stabilizing polymeric material

Details Process for stabilizing polymeric material Process for stabilizing polymeric material

C - Chemistry, Metallurgy

08

K

C08K 5/526 (2006.01) C07F 9/6574 (2006.01) C08F 2/44 (2006.01) C08K 5/527 (2006.01)

Patent

CA 2156868

A polymerization process is provided involving a carrier solution containing an organic solvent and a phosphite. The phosphite is highly soluble in the solvent and allows for an incorporation of a minimum of solvent in the carrier solution. The phosphite is of the formula: Image wherein Y1 is an alkyl and Y2 is selected from tert- butyl and sec-butyl. The process is useful for making polymers such as styrene-butadiene block copolymers which may then be molded to produce commercial articles or may be blended with other thermoplastics to enhance the impact strengths thereof.

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