plastic rattan molding is developed in the late 1970s

Reaction injection molding is developed in the late 1970s. U.S. using reaction injection molding method to isocyanates and polyether polyurethane made ​​of semi-rigid plastic car bumpers, fenders, instrument panels. This method has the equipment investment and operating costs low, parts looks beautiful, good impact resistance, design flexibility advantages of large 1980s developed rapidly. Can also be obtained by reaction injection molding rigid polyurethane foam surface structure. To further increase the rigidity MASTER plastic injection toy mould  and strength of the product, when mixed with a variety of reinforcing materials in the raw materials referred to enhanced reaction injection molding, the product can be used for automotive exterior body panels, hood. Newly developed cultivars with epoxy resins, dicyclopentadiene polymer, silicone resin, and an interpenetrating polymer network.