公开(公告)号：US20140300028A1

公开(公告)日：2014-10-09

申请号：US14308147

申请日：2014-06-18

Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION

Inventor： Xixian Zhou ,  Gregory F. Jacobs ,  Eric S. Waters

IPC: B29C70/52

CPC classification number: B29C70/523 ,  B29C70/521 ,  B29C70/526

Abstract: A system and method are disclosed for producing a continuous filament reinforced thermoplastic profile having consistent cross section. A continuous reinforcing filament is pre-wetted with a first thermoplastic resin and introduced into a die, where it is contacted with a second thermoplastic resin extruded from an extruder at melt state. The temperature of the die is carefully controlled so that the pre-wetted filament and first resin do not cure or solidify until after they have contacted and mixed with the second thermoplastic resin. The mixture temperature is then controlled to make a substantially solidified profile pre-shape. A capping layer comprising a third thermoplastic resin is then co-extruded onto the outer surface of the pre-shape. A multistage die for bringing together the filament and thermoplastic resins and for maintaining appropriate temperatures at each stage of the profile-forming process is also disclosed.

Abstract translation: 公开了用于生产具有一致横截面的连续长丝增强热塑性轮廓的系统和方法。 将连续的增强细丝用第一热塑性树脂预润湿并引入模具中，在模具中与在熔融状态下从挤出机挤出的第二热塑性树脂接触。 小心地控制模具的温度，使得预润湿丝和第一树脂在其与第二热塑性树脂接触并混合之后不固化或固化。 然后控制混合物温度以形成基本上凝固的轮廓预形状。 然后将包含第三热塑性树脂的覆盖层共挤出到预形状的外表面上。 还公开了用于将长丝和热塑性树脂聚合并用于在轮廓形成过程的每个阶段保持适当温度的多级模具。