ADVANCES IN A REVOLUTIONARY FLAME RETARDANT SYSTEM FOR POLYOLEFINS

摘要

A revolutionary non-halogenated, UV stable N-alkoxy hindered amine additive, NOR-1 was introduced into the plastics market. In this paper, recent advances in the demonstration of the efficacy of this flame retardant additive are discussed. Initial investigations confirmed that NOR-1 provides flame retardancy efficacy to polyolefin fibers at surprisingly low concentrations. Polyolefin fibers containing the additive pass some industrial standard flame retardancy tests. Recent research and development efforts show that this additive synergizes with conventional brominated and phosphorus flame retardants to provide improved performance in polyolefin fiber and molding applications. Moreover, the improved performance of these synergistic systems allows passing of some of the more stringent industrial standard flame retardancy tests. These synergistic systems allow a significant reduction in the level of conventional flame retardants that detrimentally affect light stability and mechanical properties. Moreover, this additive is a potent long-term thermal and UV light stabilizer for polyolefins. These attributes of this product may open new opportunities for flame retarded polyolefins.