526237 五、發明說明（1) 【發明領域】 本發明係有關於一種聚碳酸酯（P C )與熱塑性聚胺曱 酸乙酯（TPU ) 複合成型之製造方法，尤指一種應用複合 成型（insert-molding)取代雙色成型’適用在筆s己型電 腦外殼等產品，存在兩種不同材質之製程。 發明背景 _ · j6/L 又 應用於大 得特別龐 傳統 曱酸乙酯 不透明材 酯與熱塑 性聚胺甲 熱塑性聚 產生微龜 並無外觀 機台會顯 效盈。 塑性聚胺 )都用於 於聚唆酸 ，當熱塑 力釋放， 分子結構 之材質， 為瑕疵晶 雙色成型技術大部份只應用於小件的產 尺寸如筆記型電腦外殼，則模具及成型 大，使成本也變得很南’難以符合經濟 聚碳酸 SI (PC，polycarbonate )與熱 (TPU 9 thermoplastic po 1 yurethane 質複合成型（insert-molding)，但由 性聚胺曱酸乙酯物理收縮特性差距甚大 酸乙酯被覆二次成型時，聚碳酸酯内應 胺甲酸乙酯收縮，而造成聚碳酸酯内部 裂（mi cro crack ) ，當運用於不透明 問題，若用於透明材質，表面外觀便成 疋，本發明人 &並配合學理之運用 上述缺失之本發明。 【發明目的】 本發明之主要目的係提出 甲酸乙醋複合成型之製造方法526237 V. Description of the Invention (1) [Field of the Invention] The present invention relates to a manufacturing method of polycarbonate (PC) and thermoplastic polyurethane (TPU) composite molding, especially an application of composite molding (insert- molding) instead of two-color molding, applicable to products such as pen-type computer casings. There are two different material manufacturing processes. Background of the Invention _ · j6 / L is also applied to a very large traditional acetic acid opaque material. Ester and thermoplastic polyurethane. Thermoplastic polymerization produces micro turtles without appearance. The machine will be profitable. Plastic polyamines) are used in polyacetic acid. When the thermoplastic force is released, the material of the molecular structure is a defective crystal two-color molding technology. Most of them are only applied to the production size of small pieces, such as notebook computer shells, molds and molding. Large, so that the cost also becomes very southern 'It is difficult to comply with economical polycarbonate (SI) (polycarbonate) and heat (TPU 9 thermoplastic po 1 yurethane-insert-molding), but the physical contraction of the polyurethane The characteristic gap is very large. During the secondary molding of ethyl acetate coating, the urethane in the polycarbonate should shrink, resulting in a mi cro crack in the polycarbonate. When used for opacity, if used for transparent materials, the surface appearance Then, the inventor & combined with the theory to apply the above-mentioned missing invention. [Objective of the invention] The main purpose of the present invention is to propose a method for manufacturing a compound of ethyl formate and ethyl acetate.
一種聚破酸酯與熱塑性& ，其係利用複合成型 知 i方式Polyester and thermoplastic &
526237 五、發明說明（2) 成型，使得模具尺寸縮小，可適用於一般成型機台，使成 本降低，俾符合經濟效益。 本發明之次一目的係提出一種聚碳酸酯與熱塑性聚胺 曱酸乙酯複合成型之製造方法，其在聚碳酸酯成型後，在 熱塑性聚胺甲酸乙酯被覆的面積喷塗一層聚胺甲酸乙酯塗 料作為介質，藉以改善聚碳酸酯與熱塑性聚胺甲酸乙酯因 收縮強度不同而造成微龜裂影響外觀的問題。 為達成上述之目的，本發明係提供一種聚碳酸酯與熱 塑性聚胺曱酸乙酯複合成型之製造方法，包括下列步驟： (a )射出成型一第一元件，該第一元件之材質為透明的 聚碳酸酯；（b )在該第一元件表面局部（熱塑性聚胺曱 酸乙酯被覆的面積）喷塗聚胺甲酸乙酯塗料，以此形成一 介質層；（c )將喷塗有介質層之第一元件放入模具中， 以複合成型方式射出成型一第二元件，該第二元件之材質 為透明的熱塑性聚胺甲酸乙酯，該第二元件係成型於該介 質層上，使該介質層介於該第一元件與該第二元件之間。 為了使 貴審查委員能更進一步瞭解本發明之特徵及 内容，請參閱以下有關本發明之詳細說明與附圖，然所附 圖式僅提供參考與說明用，並非用來對本發明加以限制者 〇 【實施例】 本發明係提供一種聚碳酸酯（P C )與熱塑性聚胺曱酸 乙酯（TPU ) 複合成型之製造方法，其適用在筆記型電腦 外殼等產品，該製造方法包括下列步驟（請參閱第一圖、526237 5. Description of the invention (2) Molding reduces the size of the mold, which can be applied to general molding machines, which reduces the cost and is economical. A secondary object of the present invention is to provide a method for manufacturing a composite molding of polycarbonate and thermoplastic polyurethane. After the polycarbonate is molded, a layer of polyurethane is sprayed on the area covered by the thermoplastic polyurethane. Ethyl ester coating is used as a medium to improve the problem of micro-cracks that affect the appearance of polycarbonate and thermoplastic polyurethane due to different shrink strength. In order to achieve the above object, the present invention provides a manufacturing method for composite molding of polycarbonate and thermoplastic polyurethane, including the following steps: (a) injection molding a first element, the material of the first element is transparent (B) spraying a polyurethane coating on the surface of the first element (the area covered by thermoplastic polyurethane) to form a dielectric layer; (c) spraying The first element of the dielectric layer is placed in a mold, and a second element is injection-molded in a composite molding manner. The material of the second element is transparent thermoplastic polyurethane. The second element is formed on the dielectric layer. The dielectric layer is interposed between the first element and the second element. In order to allow your reviewers to further understand the features and contents of the present invention, please refer to the following detailed description and drawings of the present invention, but the drawings are provided for reference and explanation only, and are not intended to limit the present invention. [Example] The present invention provides a manufacturing method for the composite molding of polycarbonate (PC) and thermoplastic polyurethane (TPU), which is applicable to products such as notebook computer casings. The manufacturing method includes the following steps (please See the first picture,
526237 五、發明說明（3) 第二圖及第三圖）： (a )首先利用射出成型機台以模具射出成型一第一元件 1 0 (如第一圖），該第一元件1 0之材質為透明 的聚碳酸酯（PC )，該第一元件1 0成型之形狀及 尺寸並不限定，可隨需要而作不同的變化，本實施 例之第一元件1 0係成型為一筆記型電腦外殼，該 第一元件1 0局部（熱塑性聚胺曱酸乙酯被覆的面 積）表面形成有一凹陷狀之結合部1 1 。526237 V. Description of the invention (3) The second and third pictures: (a) Firstly, a first component 10 (such as the first figure) is formed by using an injection molding machine to mold the first component. The material is transparent polycarbonate (PC). The shape and size of the first element 10 are not limited, and can be changed as needed. The first element 10 of this embodiment is formed into a notebook. For a computer casing, a concave joint portion 1 1 is formed on the surface of a part of the first component 10 (the area covered by the thermoplastic polyurethane).
(b )其次，在該第一元件1 0之結合部1 1表面喷塗聚 胺曱酸乙酯（P U，ρ ο 1 y u r e t h a n e )塗料，以此形成 一介質層2 Ο (如第二圖），可提供緩衝效果，該 介質層2 0厚度約為2 0 /zm，但其厚度並不限定 於此，可依需要適度的增減，該介質層2 0必需予 以烘烤使其固化，烘烤溫度約為8 0 °C，時間約為 4 0分鐘，但其烘烤溫度及時間並不限定於此，可 依需要適度的變化。(b) Secondly, a polyurethane (PU, ρ ο 1 yurethane) coating is sprayed on the surface of the joint portion 11 of the first element 10 to form a dielectric layer 2 0 (as shown in the second figure) It can provide a buffer effect. The thickness of the dielectric layer 20 is about 20 / zm, but its thickness is not limited to this. It can be increased or decreased as needed. The dielectric layer 20 must be baked to cure and bake. The baking temperature is about 80 ° C, and the time is about 40 minutes, but the baking temperature and time are not limited to this, and can be appropriately changed as required.
(c )最後，將喷塗有介質層2 0之第一元件1 0放入射 出成型機台之模具中，俾以複合成型（insert-molding) 方式射出成型一第二元件3 0 (如第三 圖），該第二元件3 0之材質為透明的熱塑性聚胺 曱酸乙酯（TPU ) ，該第二元件3 0係成型於第一 元件1 0之結合部1 1表面喷塗所形成的介質層2 0上，並以該介質層2 0介於該第一元件1 0與第 二元件3 0之間，以此製成一筆記型電腦外殼。(c) Finally, the first component 10 sprayed with the dielectric layer 20 is put into the mold of the molding machine, and a second component 3 0 is injected and molded in an insert-molding manner (as in the first (3 pictures), the material of the second element 30 is transparent thermoplastic polyurethane (TPU), and the second element 30 is formed by spraying on the surface of the joint portion 11 of the first element 10 A notebook computer case is manufactured by using the dielectric layer 20 on the dielectric layer 20 and interposing the dielectric layer 20 between the first element 10 and the second element 30.
第6頁 526237 五、發明說明（4) 睛參閱弟四圖， 义 元件1 〇後，在二執掏：要係在以聚碳酸酯成蜜第-0被覆的面積嘴塗—^:版甲酸乙酯成型之第二元件3 2 〇 ，藉以改善&炉I =聚胺甲酸乙酯塗料製成之介質層 度不同而造成微龜二二，與熱塑性聚胺曱酸乙酯因收縮強 之材質。 衣衫3外觀的問題，因此可運用於透明 本發明係利用複合、 小，可適用於一般成^ :式成型，使得模具尺寸縮 益，且以熱塑性聚胺甲：：：成本降低，俾符合經濟效 於較大，面積，可應用元件3。可被覆 用於品ί發雙色成型技術只能應 機台會顯得特別龐大，使成本择 ^ ’則柄具及成型 ^ β7卜 风尽日加，且傳統聚碳酸酯盥埶 ，聚胺，乙r曰只能用於不透明材質複合成型，若用‘； 透明材質，表面夕卜觀會因内部產生微㈣成為瑕症匕品等問 題，實為-不可夕得之新發明，其極具產業上之利用性、 新穎性及進步性，完全符合發明專利申請要件，爰依專 法提出申請，敬請詳查並賜准本案專利，以保障發明人之 權益。 惟以上所述僅為本發明之較佳可行實施例，非因此即 拘限本發明之專利範圍，故舉凡運用本發明說明書及圖式 内容所為之專效技術、交化’均同理皆包含於本發明之範圍 内，合予陳明。 第7頁 526237Page 6 526237 V. Description of the invention (4) Please refer to the fourth picture of the brother. After the element 10 is finished, the second one should be drawn: it should be tied to the area covered with the polycarbonate to the 0th mouth coating-^: version of formic acid The second component 3 2 0 molded by ethyl ester is used to improve & furnace I = polyurethane coatings have different dielectric layers and cause micro-turbine 22, and thermoplastic polyurethane due to strong shrinkage. Material. The appearance of the garment 3 can be used for transparency. The present invention uses a composite, small, and can be applied to the general formation of ^: type, making the mold size shrink, and the use of thermoplastic polyurethane: :: cost reduction, 俾 economical Effective for larger, area, element 3 can be applied. The two-color molding technology that can be applied to the product can only be applied to the machine, which will appear to be particularly large, so that the cost can be selected ^ '7 handles and molding ^ β7 can be added every day, and the traditional polycarbonate toilet, polyamine, B R said that it can only be used for composite molding of opaque materials. If you use '; transparent materials, the surface of the surface will become a problem due to internal microscopic lumps, which is a new invention that is not available, which is extremely industrial. The above-mentioned utilization, novelty, and advancement fully comply with the requirements for the application for invention patents, and apply in accordance with the special law. Please check and approve the patents in this case to protect the rights of the inventors. However, the above is only a preferred and feasible embodiment of the present invention, and therefore does not limit the patent scope of the present invention. Therefore, the use of the special technology and cross-cutting techniques in the description and the drawings of the present invention all include the same reason. Within the scope of the present invention, Chen Ming is jointly owned. Page 7 526237
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