Overview of Flame Retardant Compositions UV Stable Flame Retardant Systems and Antimony Free Flame Retardant Products for Polyolefins; Halogen Free Melamine Based Flame Retardants For Polyamides

摘要

Over the last several years we have clearly established the utility of novel NOR type hindered amines, such as NOR 1, either as a flame retardant, or flame retardant synergist in polypropylene fibers and thin films. Herein, we will provide an update on the recent advances in flame retardant products for polypropylene injection molding substrates including both flame retardant efficacy and UV stability. Overall, we have found that these novel NOR type hindered amines allow for ⅰ) substantial reduction in the concentration of the halogenated flame retardants and mineral fillers and ⅱ) the elimination of antimony trioxide. In this report fully formulated antimony free products and UV stable flame retardant systems comprised upon a conventional flame retardant and a light stabilizer for injection molding grade polypropylene will be presented. Furthermore, we will also take the opportunity to provide information on a new Melamine based flame retardant product (a new form of MelamineCyanurate, MC-XL) for polyamides.