POLYOLEFIN ADDITIVE PACKAGES FOR PRODUCING ARTICLES WITH ENHANCED STAIN RESISTANCE

摘要

The present invention provides additive packages for polyolefins. The additive packages of the present invention comprise at least one non-phenolic antioxidant and a hindered amine light stabilizer. The additive packages may contain other additives as meeded, and may optionally include an acid scavenger. Articles made from the resultant polymers, such as radiator surge tanks, exhibit enhanced stain and discoloration resistance upon exposure to high temperatures and harsh chemicals such as those experienced in "under the hood" spaces of modern automobiles.