公开(公告)号：US3966372A

公开(公告)日：1976-06-29

申请号：US470662

申请日：1974-05-16

申请人： Akio Yasuike ,  Takehiro Shibuya ,  Kaoru Toyouchi ,  Susumu Imai

发明人： Akio Yasuike ,  Takehiro Shibuya ,  Kaoru Toyouchi ,  Susumu Imai

IPC分类号： B29C45/16 ,  B29D27/00

CPC分类号： B29C45/1645 ,  Y10S264/83

摘要： A first thermoplastic resin for forming the shell of an article is charged into the front portion of an injection cylinder and a second thermoplastic resin for forming the core of the article is charged into the rear portion of the injection cylinder. Both resins are substantially separated, being in contact only a central area of the cross-sectional plane of the injection cylinder. These thermoplastic resins are injected in a mass into a mold cavity with the second resin enveloped by the first resin, and finally solidified in the mold cavity resulting in a molded article having sandwich construction. Various sandwich articles can be obtained easily by means of a single injection molding machine. The process also allows repeated injection operations without exposure of the core material on the surface of the molded article.

摘要翻译： 将用于形成制品外壳的第一热塑性树脂装入注射圆筒的前部，并将用于形成制品的芯的第二热塑性树脂装入注射圆筒的后部。 两种树脂基本上分开，仅与注射筒的横截面平面的中心区域接触。 将这些热塑性树脂以质量注射到模腔中，第二树脂被第一树脂包封，最终在模腔中固化，形成具有夹层结构的模塑制品。 可以通过单个注射成型机容易地获得各种夹层物品。 该方法还允许重复的注射操作，而不会在模制品的表面上暴露核心材料。

公开(公告)号：US4229395A

公开(公告)日：1980-10-21

申请号：US918694

申请日：1978-06-23

申请人： Tadashi Nagumo ,  Akio Yasuike ,  Hiroshi Kataoka

发明人： Tadashi Nagumo ,  Akio Yasuike ,  Hiroshi Kataoka

IPC分类号： B29C44/10 ,  B29C45/04 ,  B29D27/00 ,  B29F1/06

CPC分类号： B29C44/105 ,  B29C45/0408 ,  B29K2705/00 ,  Y10S264/83

摘要： Molten synthetic resin material containing foaming agent in an amount of 0.05 to 5 percent by weight is injected into a pre-pressurized mold cavity in a mold which is closed by a relatively low clamping force having a coefficient in the range of 10 to 40, said coefficient being represented as a ratio of clamping force to maximum injection shot volume. The above injection step is carried out for at least 3 seconds. After the injection step has been initiated, the pre-pressurized mold is released to atmosphere during the injection step at the soonest. At least two molds may be used to be alternately charged with said material.

摘要翻译： 将含有0.05〜5重量％的发泡剂的熔融合成树脂材料注入模具中的预加压模腔中，该模具通过具有在10至40范围内的系数的相对较低的夹紧力封闭，所述 系数表示为夹紧力与最大喷射体积的比率。 上述注射步骤进行至少3秒钟。 在注射步骤开始之后，预压模具在注射步骤中最快释放到大气中。 可以使用至少两个模具来交替地填充所述材料。

公开(公告)号：US4129635A

公开(公告)日：1978-12-12

申请号：US814127

申请日：1977-07-08

申请人： Akio Yasuike ,  Hiroshi Kataoka ,  Kaoru Toyouchi

发明人： Akio Yasuike ,  Hiroshi Kataoka ,  Kaoru Toyouchi

IPC分类号： B29C44/10 ,  B29C45/17 ,  B29D27/00

CPC分类号： B29C44/105 ,  B29C45/1704 ,  Y10S264/14 ,  Y10S264/83

摘要： Foamable synthetic resin materials are plastified and injected into a mold cavity in an amount less than the volume of mold cavity and a body of gas under pressure is charged in the mold cavity in such manner that it is enclosed by said resin materials. When the injected resin materials sets at least at its outer surface layer, the gas is discharged out of the mold cavity so that the foamable resin materials can be expanded in the hollow portion formed by the pressure of the charged gas. Said foamable resin materials may be surrounded by unfoamable resin materials in the mold cavity.

摘要翻译： 可发泡合成树脂材料被塑化并以小于模腔体积的量注入模腔中，并且将压力下的气体体以使其被所述树脂材料封闭的方式装入模腔中。 当注入的树脂材料至少设置在其外表面层时，气体被排出模腔，使得可发泡树脂材料可以在由带电气体的压力形成的中空部分中膨胀。 所述可发泡树脂材料可以在模具腔中被不可发泡的树脂材料包围。

公开(公告)号：US4174413A

公开(公告)日：1979-11-13

申请号：US816469

申请日：1977-07-18

申请人： Akio Yasuike ,  Hiroshi Kataoka ,  Norito Takao

发明人： Akio Yasuike ,  Hiroshi Kataoka ,  Norito Takao

IPC分类号： B29C45/16 ,  B29C49/22 ,  B29C51/14 ,  B32B27/08 ,  B65D23/00 ,  B28B1/24 ,  B29F1/00 ,  B32B3/02

CPC分类号： B29C51/14 ,  B29C45/1643 ,  B29C45/1645 ,  B29C49/221 ,  B32B27/08 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29K2995/0069 ,  Y10T428/1352 ,  Y10T428/1383 ,  Y10T428/21 ,  Y10T428/2495

摘要： A multi-layered article molded according to the present invention has in its cross-section a triple-layered structure consisting of two surface layers and a core layer interposed between said surface layers, said triple-layered structure being injection molded in a single shot from two kinds of thermoplastic synthetic resins to be formed into the surface and core layers, respectively, said core layer having a thickness less than one half of the entire thickness of said article.

摘要翻译： 根据本发明成型的多层制品在其横截面中具有三层结构，其由两个表面层和介于所述表面层之间的芯层组成，所述三层结构以单次注射成型 要形成表面和芯层的两种热塑性合成树脂，所述芯层的厚度分别小于所述制品的整个厚度的一半。

公开(公告)号：US4106887A

公开(公告)日：1978-08-15

申请号：US786939

申请日：1977-04-12

申请人： Akio Yasuike ,  Hiroshi Kataoka ,  Tutomu Fujikawa ,  Naoto Suzuki

发明人： Akio Yasuike ,  Hiroshi Kataoka ,  Tutomu Fujikawa ,  Naoto Suzuki

IPC分类号： B29C41/00 ,  B29C45/00 ,  B29C45/17 ,  B29C45/23 ,  B29C45/28 ,  B29C45/30 ,  B29C45/77 ,  B29F1/08 ,  B29F1/03

CPC分类号： B29C45/1735 ,  B29C45/231 ,  B29C45/2806 ,  B29C2045/1707 ,  Y10S264/83

摘要： An apparatus for injection molding synthetic resin materials comprises means for injecting the material to be molded, mold means having a cavity for receiving the material from said injecting means, entrance passage means connecting said injecting means with the cavity of said mold means and valve means disposed in said entrance passage means for closing it to shut off the flow of material in said entrance passage means, said valve means having a fluid passage communicating at its one end with only the cavity of said mold means when said valve means is closed, said fluid passage having the opposite end thereof adapted to connect with another source of pressurized fluid.

摘要翻译： 一种用于注射合成树脂材料的装置包括用于注射待模制材料的模具，具有用于从所述注射装置接收材料的空腔的模具装置，将所述注射装置与所述模具装置的空腔连接的入口通道装置和设置的阀装置 在所述入口通道装置中，用于封闭所述入口通道装置中的材料流动，所述阀装置具有在所述阀装置关闭时在其一端仅与所述模具装置的空腔连通的流体通道，所述流体 通道，其相对端适于与另一加压流体源连接。

公开(公告)号：US4096218A

公开(公告)日：1978-06-20

申请号：US709108

申请日：1976-07-27

申请人： Akio Yasuike ,  Tsutomu Odagiri ,  Toshiba Machine Co. Limited

发明人： Akio Yasuike ,  Tsutomu Odagiri ,  Toshiba Machine Co. Limited

IPC分类号： B29C44/10 ,  B29D27/00

CPC分类号： B29C44/105 ,  Y10S264/05 ,  Y10S264/14 ,  Y10S264/83 ,  Y10T428/249989

摘要： A method of producing foamed thermoplastic resin articles having smooth and glossy surfaces free from swirl marks and hair cracks, which comprises melting a thermoplastic resin containing a condensable blowing agent and an organic chemical blowing agent, injecting, in full shot, the molten resin into a mold cavity to which a pressurized gas is being applied during said injection, terminating the application of the pressurized gas to the mold cavity, enlarging the volume in said molded cavity by movement of a mold wall, and thereafter cooling and solidifying the resin to form the foamed articles.

摘要翻译： 一种制造具有光滑光滑表面的不含旋转痕迹和毛发的发泡热塑性树脂制品的方法，其包括熔化包含可冷凝发泡剂和有机化学发泡剂的热塑性树脂，将熔融树脂全部注入到 在所述注射期间，施加加压气体的模腔，终止将加压气体施加到模腔，通过模具壁的移动扩大所述模制腔中的体积，然后冷却和固化树脂，形成 发泡制品。