NON-HOLOGEN FLAME RETARDANT FOR POLY-URETHANE USING MELAMINE-CYANURATE AND NON-HOLOGEN FLAME RETARDANCY FOR URETHANE COMPOUNDS USING THE SAME AND METHOD FOR PREPARING THAT

摘要

Disclosed are a non-halogen flame retardant used in a polyurethane foam used as a light weight structural agent, a heat insulating material, a sound absorbing agent, and the like, and a foam using the same, and a method of manufacturing the same. According to the present invention, a new polyurethane-based non-halogen flame retardant, a method for producing a flame-retardant urethane foam, and a non-toxic flame retardant which have no human toxicity and environmental pollution by halogen gas, which is a disadvantage of the conventional halogen, and have no reduction in flame retardant effect over time, can be obtained. Melamine-cyanurate, which is a non-halogen flame retardant to polyhydroxy compounds or polyols used in polyurethane, is used as a single or other flame retardant in 2-90% of the weight ratio of the polyhydroxy compound and / or polyol. By mixing and dispersing.