Clear impact modifier for pvc

Details Clear impact modifier for pvc Clear impact modifier for pvc

C - Chemistry, Metallurgy

08

F

400/3053

C08F 257/00 (2006.01) C08F 212/08 (2006.01) C08F 220/44 (2006.01) C08F 279/04 (2006.01) C08L 27/06 (2006.01) C08L 51/04 (2006.01) C08L 55/02 (2006.01)

Patent

CA 1315906

CLEAR IMPACT MODIFIER FOR PVC ABSTRACT Impact modified PVC compositions comprising PVC and an ABS graft copolymer wherein the ABS comprises from 50 to 70 wt% styrene-butadiene rubber and from 40 to 30 wt% SAN having a S/AN ratio of about 3.8/1 to 4.2/1 have excellent clarity and good impact properties. The preferred composi- tions are based on substrate SBR rubbers having from 78 to 95 wt% butadiene and from 22 to 5 wt% styrene.

520618

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