Lowinox 44B25 4,4’-Butylidenebis(2-t-butyl-5-methylphenol) 85-60-9 Great Lakes Antioxidants >> Phenolic Polyamides (PA) ADHESIVE Lowinox 44B25 Phenolic Antioxidant Lowinox 44B25 is a non-discoloring antioxidant, based on a sterically hindered alkylated bis-phenol. Lowinox 44B25 is a non-discoloring antioxidant with a wide range of applications for thermoplastics and adhesives. I has excellent performance properties in polyamides and tire cord. Non-discoloring, sterically hindered alkylated bis-phenol antioxidant. Used in adhesives. Possesses very good performance properties in polyamides.