JP2004218062A5 - - Google Patents
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- JP2004218062A5 JP2004218062A5 JP2003141981A JP2003141981A JP2004218062A5 JP 2004218062 A5 JP2004218062 A5 JP 2004218062A5 JP 2003141981 A JP2003141981 A JP 2003141981A JP 2003141981 A JP2003141981 A JP 2003141981A JP 2004218062 A5 JP2004218062 A5 JP 2004218062A5
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- JP
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- Prior art keywords
- metal element
- mold
- molten resin
- supercritical fluid
- plasticizing cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
【特許請求の範囲】
【請求項１】
熱可塑性樹脂を射出成形することによって成形品を製造する方法であって、
金属元素を超臨界流体に溶解させる工程と、
金型内に、前記熱可塑性樹脂と前記金属元素を溶解させた超臨界流体を導入する導入工程と、
前記金型内で前記熱可塑性樹脂を固化し成形品を得る際に、前記金属元素を前記成形品の表面に析出させる工程とを有し、
前記導入工程において、前記熱可塑性樹脂は前記金型内に溶融樹脂として射出され、前記金属元素を溶解させた超臨界流体は、前記溶融樹脂のフローフロント部に導入されることを特徴とする方法。
【請求項２】
熱可塑性樹脂を射出成形することによって成形品を製造する方法であって、
金属元素を超臨界流体に溶解させる工程と、
前記熱可塑性樹脂に、前記金属元素を溶解させた超臨界流体を浸透した後、前記熱可塑性樹脂を溶融樹脂として、前記金型内に射出により導入する導入工程と、
前記金型内で前記溶融樹脂を固化し成形品を得る際に、前記金属元素を前記成形品の表面に析出させる工程とを有し、
前記導入工程において、前記金型内の前記溶融樹脂のフローフロント部には、前記金属元素が含まれることを特徴とする方法。
【請求項３】
前記導入工程は、
前記熱可塑性樹脂が、スクリューを有する可塑化シリンダー内で可塑化計量され、溶融樹脂となる工程と、
前記可塑化シリンダー内の前記スクリューを後退させる工程と、
前記可塑化シリンダー内の前記溶融樹脂に、前記金属元素を溶解させた超臨界流体を浸透する工程と、
前記溶融樹脂を前記可塑化シリンダーから前記金型内に射出する工程とを、
含むこと特徴とする請求項２記載の方法。
【請求項４】
前記金属元素は、有機金属錯体として前記超臨界流体に溶解させることを特徴とする請求項１又は２記載の方法。
【請求項５】
前記方法は、前記成形品の表面に析出した前記金属元素を核にして無電解メッキを行うことにより、成形品の表面にメッキ層を形成する工程を更に有することを特徴とする請求項１又は２記載の方法。
【請求項６】
前記方法は、前記成形品の表面に、部分的に析出した前記金属元素を核にして無電解メッキを行うことにより、成形品の表面にメッキ層からなるパターンを形成する工程を更に有することを特徴とする請求項１又は２記載の方法。
【請求項７】
金型と、スクリューを有し且つ該スクリューにより熱可塑性樹脂の溶融樹脂を該金型内に射出する可塑化シリンダーとを備えた射出成形装置であって、
金属元素を超臨界流体に溶解させる機構と、
前記金属元素を溶解させた超臨界流体を前記可塑化シリンダー内へ導入する機構と、
前記可塑化シリンダー内において、前記金属元素を溶解させた超臨界流体を前記溶融樹脂に浸透させる機構と、
前記溶融樹脂を前記金型へ射出する機構と、
前記金型内で前記溶融樹脂を固化し成形品を得る際に、前記金属元素を前記成形品の表面に析出させる機構とを有する射出成形装置。
【請求項８】
前記金属元素を、前記金型内に射出された前記溶融樹脂のフローフロント部に導入する機構を含むことを特徴とする請求項７記載の射出成形装置。
【請求項９】
前記可塑化シリンダーには、前記可塑化シリンダーから前記金型へ前記溶融樹脂を射出するためのノズルが設けられ、
前記ノズルと前記スクリューとの間には、前記金属元素を溶解させた超臨界流体を前記可塑化シリンダー内へ導入するための供給口が設けられていることを特徴とする請求項７記載の射出成形装置。
[Claims]
(1)
A method for producing a molded article by injection molding a thermoplastic resin,
Dissolving a metal element in a supercritical fluid;
In a mold, an introduction step of introducing a supercritical fluid in which the thermoplastic resin and the metal element are dissolved,
When solidifying the thermoplastic resin in the mold to obtain a molded product, the method includes depositing the metal element on the surface of the molded product,
In the introducing step, the thermoplastic resin is injected as a molten resin into the mold, and a supercritical fluid in which the metal element is dissolved is introduced into a flow front portion of the molten resin. .
(2)
A method for producing a molded article by injection molding a thermoplastic resin,
Dissolving a metal element in a supercritical fluid;
After infiltrating the thermoplastic resin with a supercritical fluid in which the metal element is dissolved, introducing the thermoplastic resin as a molten resin into the mold by injection,
When solidifying the molten resin in the mold to obtain a molded product, the method includes depositing the metal element on the surface of the molded product,
The method according to claim 1, wherein in the introducing step, the metal element is contained in a flow front portion of the molten resin in the mold.
(3)
The introduction step includes:
The thermoplastic resin is plasticized and measured in a plasticizing cylinder having a screw, and a step of forming a molten resin,
Retreating the screw in the plasticizing cylinder,
Infiltrating a supercritical fluid in which the metal element is dissolved, in the molten resin in the plasticizing cylinder,
Injecting the molten resin from the plasticizing cylinder into the mold,
The method of claim 2, comprising:
(4)
The method according to claim 1, wherein the metal element is dissolved in the supercritical fluid as an organometallic complex.
(5)
The method according to claim 1, further comprising a step of forming a plating layer on the surface of the molded article by performing electroless plating using the metal element precipitated on the surface of the molded article as a nucleus. 2. The method according to 2.
6.
The method may further include a step of forming a pattern composed of a plating layer on the surface of the molded article by performing electroless plating on the surface of the molded article with the metal element partially precipitated as a nucleus. 3. The method according to claim 1, wherein the method comprises:
7.
An injection molding apparatus having a mold and a plasticizing cylinder having a screw and injecting a molten resin of a thermoplastic resin into the mold by the screw,
A mechanism for dissolving a metal element in a supercritical fluid,
A mechanism for introducing a supercritical fluid in which the metal element is dissolved into the plasticizing cylinder,
In the plasticizing cylinder, a mechanism for infiltrating the molten resin with a supercritical fluid in which the metal element is dissolved,
A mechanism for injecting the molten resin into the mold,
An injection molding apparatus having a mechanism for depositing the metal element on the surface of the molded product when the molten resin is solidified in the mold to obtain a molded product.
8.
The injection molding apparatus according to claim 7, further comprising a mechanism for introducing the metal element into a flow front portion of the molten resin injected into the mold.
9.
The plasticizing cylinder is provided with a nozzle for injecting the molten resin from the plasticizing cylinder to the mold,
The injection port according to claim 7, wherein a supply port for introducing a supercritical fluid in which the metal element is dissolved into the plasticizing cylinder is provided between the nozzle and the screw. Molding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003141981A JP3806102B2 (en) | 2002-05-22 | 2003-05-20 | Molded product, injection molding method and apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002148263 | 2002-05-22 | ||
| JP2002339020 | 2002-11-22 | ||
| JP2003141981A JP3806102B2 (en) | 2002-05-22 | 2003-05-20 | Molded product, injection molding method and apparatus |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005144708A Division JP3696878B1 (en) | 2002-05-22 | 2005-05-17 | Manufacturing method of molded products |
| JP2006084914A Division JP4187750B2 (en) | 2002-05-22 | 2006-03-27 | Manufacturing method of molded products |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004218062A JP2004218062A (en) | 2004-08-05 |
| JP2004218062A5 true JP2004218062A5 (en) | 2006-05-18 |
| JP3806102B2 JP3806102B2 (en) | 2006-08-09 |
Family
ID=32912791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003141981A Expired - Fee Related JP3806102B2 (en) | 2002-05-22 | 2003-05-20 | Molded product, injection molding method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3806102B2 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006096810A (en) * | 2004-09-28 | 2006-04-13 | Kagawa Industry Support Foundation | Functional transparent organic polymer material and method for producing the same |
| JP2006131769A (en) * | 2004-11-05 | 2006-05-25 | Hitachi Maxell Ltd | Plastic structure and method for producing plastic structure |
| JP4680824B2 (en) * | 2006-04-21 | 2011-05-11 | 日立マクセル株式会社 | Method for forming plated film of polymer substrate and polymer substrate |
| JP2007131864A (en) * | 2005-04-27 | 2007-05-31 | Hitachi Maxell Ltd | Polymer member |
| JP4783110B2 (en) * | 2005-10-06 | 2011-09-28 | 日立マクセル株式会社 | Method for surface modification of polymer substrate |
| JP4690302B2 (en) * | 2005-08-18 | 2011-06-01 | 日立マクセル株式会社 | Manufacturing method of molded products |
| JP3914961B2 (en) | 2005-08-18 | 2007-05-16 | 日立マクセル株式会社 | Method for manufacturing molded product, extrusion molding apparatus and molded product |
| JP4645557B2 (en) * | 2005-09-09 | 2011-03-09 | 株式会社デンソー | Optical element manufacturing method |
| JP4758732B2 (en) * | 2005-11-14 | 2011-08-31 | 日立マクセル株式会社 | Thermoplastic injection molding method using supercritical fluid |
| JP4958141B2 (en) * | 2006-03-20 | 2012-06-20 | 国立大学法人福井大学 | Metal-coated polymer material and method for producing the same |
| JP4814710B2 (en) * | 2006-07-14 | 2011-11-16 | 株式会社神戸製鋼所 | Plastic metal plating pretreatment method |
| JP4570651B2 (en) * | 2007-10-25 | 2010-10-27 | 日立マクセル株式会社 | Method for manufacturing molded product and molding apparatus |
| JP5138394B2 (en) * | 2008-01-21 | 2013-02-06 | 日立マクセル株式会社 | Polymer parts |
| JP4717147B2 (en) * | 2010-05-11 | 2011-07-06 | 日立マクセル株式会社 | Manufacturing method of molded products |
| JP6072599B2 (en) * | 2013-04-26 | 2017-02-01 | 日立マクセル株式会社 | Method for producing molded body having plated film and molded body having plated film |
| JP7063721B2 (en) | 2018-03-29 | 2022-05-09 | 住友化学株式会社 | Manufacturing method of foam molded products and foam molded products |
-
2003
- 2003-05-20 JP JP2003141981A patent/JP3806102B2/en not_active Expired - Fee Related
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