2 Non-toxic pyrophosphoric lactone modified polyester pre-polymer preparing method thereof and method for preparing two-component polyurethane flame retardant coatings including the same

摘要

The present invention relates to a process for the preparation of non-toxic blood of a lactone-modified polyester prepolymer, a preparation method thereof, and a two-component polyurethane-retardant coating material including the same, more specifically, to select the phosphoric acid fatigue of the component as a flame retardant minutes , a diol, followed by polycondensation of a dibasic acid and a triol prepared fatigue of a lactone-modified polyester prepolymer, followed by reaction with a polyisocyanate, to a method for producing a two-component polyurethane-retardant coating. Physical Properties of flame-retardant coating according to the invention got a rather appear in more favorable compared to blame year fee, by using the two blood of a lactone-modified polyester prepolymer The popularity is introduced into one of the structural units of the flame-retardant coating material, in the manufacture showed robust flame retardancy in both the three-retardant test, the write is not harmful to the human body detecting toxic gas through the low-chlorine test the prepared coating material to a non-toxic, especially to determine whether demonstrated that non-toxic, flame-retardant coating.