Hindered phenolic antioxidants and diazacycloalkane uv...

Details Hindered phenolic antioxidants and diazacycloalkane uv... Hindered phenolic antioxidants and diazacycloalkane uv...

C - Chemistry, Metallurgy

08

K

18/1043, 18/796

C08K 5/3442 (2006.01) C08K 5/3462 (2006.01) C08K 5/3492 (2006.01)

Patent

CA 1173616

ABSTRACT OF THE DISCLOSURE In a preferred embodiment, slit tape is made by extruding a polyolefin in the form of a sheet into a cooling water bath, slitting the sheet into ribbons after the sheet is withdrawn from the water bath, and stretching the ribbons as they are conveyed through an oven, the improvement residing in the addition to the polyolefin a combination of a hindered phenolic antioxidant and a 2-keto diazacycloalkane UV stabilizer in sufficient amount to reduce water carryover and improve processing stability of the polyolefin.

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