Impact modified polyacetal compositions

Details Impact modified polyacetal compositions Impact modified polyacetal compositions

C - Chemistry, Metallurgy

08

L

C08L 59/00 (2006.01) C08K 5/00 (2006.01) C08L 51/04 (2006.01) C08L 59/02 (2006.01) C08L 59/04 (2006.01)

Patent

CA 2141752

The invention relates to improved polyacetal compositions composed of polyoxymethylene (component A) and a stabilized MBS core shell graft copolymer (component B) formed from a rubber-elastic core based on polybutadiene, and a hard graft shell. The stabilized MBS core shell graft copolymer (component B) contains a special stabilization formulation of at least one hindered phenol, a phosphite, a sulfide, and a pH buffer system. The shaped articles produced from these mixtures are particularly distinguished by an excellent low-temperature impact strength and a good heat aging performance.

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