专利名称：Method of manufacturing a plastic motor
vehicle door
发明人：Gary F. Altman,Mark A. Cunningham申请号：US07/515131申请日：19900426公开号：US05034173A公开日：19910723
摘要：A two-staged or sequential reaction injection molding (RIM) method ofmanufacturing a glass fiber mat reinforced plastic part having at least one appearancesurface in which a high viscosity RIM material and a low viscosity RIM material aresequentially injected into a mold cavity containing at least one reinforcing member of aglass fiber mat.
申请人：GENERAL MOTORS CORPORATION
代理人：R. W. Tung
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