Impact modified high melt flow polycarbonamide

Details Impact modified high melt flow polycarbonamide Impact modified high melt flow polycarbonamide

C - Chemistry, Metallurgy

08

L

400/3029, 400/46

C08L 51/00 (2006.01) C08J 3/00 (2006.01) C08L 77/00 (2006.01)

Patent

CA 1105181

IMPACT MODIFIED HIGH MELT FLOW POLYCARBONAMIDE Abstract 77-11 Disclosed is a method for preparing an impact-resistant, high melt flow polycarbonamide comprising the steps of: (a) preparing an impact modifier concentrate comprising a mixture of (i) 70-90 parts by weight of an acrylic impact modifier and (ii) 10-30 parts by weight of at least one high molecular weight aliphatic polycarbonamide; and (b) mixing 10-30 parts by weight of the impact modifier concentrate from (a) above with 70-90 parts by weight of at least one low molecular weight aliphatic polycarbonamide. The resulting polycarbonamide blends are characterized by high impact resistance and a melt flow which is essentially the same as that of the blend of the acrylic impact modifier and the low molecular weight nylon alone.

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