JPH0431019A - Injection molding method for composite product - Google Patents
Injection molding method for composite productInfo
- Publication number
- JPH0431019A JPH0431019A JP13719990A JP13719990A JPH0431019A JP H0431019 A JPH0431019 A JP H0431019A JP 13719990 A JP13719990 A JP 13719990A JP 13719990 A JP13719990 A JP 13719990A JP H0431019 A JPH0431019 A JP H0431019A
- Authority
- JP
- Japan
- Prior art keywords
- runner
- mold
- release
- injection molding
- product
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims description 20
- 238000001746 injection moulding Methods 0.000 title claims description 19
- 239000000463 material Substances 0.000 claims abstract description 43
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 abstract description 12
- 239000004945 silicone rubber Substances 0.000 abstract description 12
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 239000003566 sealing material Substances 0.000 abstract description 3
- 239000007779 soft material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000011343 solid material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
- B29C2045/1667—Deformation bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C2045/2683—Plurality of independent mould cavities in a single mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
- B29K2083/005—LSR, i.e. liquid silicone rubbers, or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2221/00—Use of unspecified rubbers as reinforcement
- B29K2221/003—Thermoplastic elastomers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2283/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、異なる材料を順次射出成形し７複数種の材料
から成る複合製品を成形する複合製品の射出成形方法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an injection molding method for a composite product, in which a composite product made of seven or more types of materials is molded by sequentially injection molding different materials.
（従来の技術）
近年、例えば箱状に形成されたプラスチツタ部材のフラ
ンジ部にゴム製のンール部ヰ（を一体成形するというよ
うに、複数種の材料から成る複、′１製品を一つの射出
成型機で成形する二とか行われるようになってきた。(Prior art) In recent years, multiple products made of multiple types of materials have been manufactured by one injection process, for example, by integrally molding a rubber ring part on the flange part of a box-shaped plastic member. Molding with a molding machine has started to be done.
この種の複合製品の射出成形では、１次及び２次の順次
の射出により一つの製品を作ることかできるので、製品
組付の１間を省略でき、かつ組イ・ｊ精度か問題となら
ないので、高精度の製品を安（市に供給できる利点かあ
る。In injection molding of this type of composite product, one product can be made by sequential injection of primary and secondary injections, so one step of product assembly can be omitted, and assembly accuracy is not a problem. Therefore, it has the advantage of being able to supply high-precision products to the city at a low price.
従来、この種の複合製品の射出成形では、各ヰ４料は独
自のランナを介して成形のためのキャビティへ導入され
るようになっている。Conventionally, in the injection molding of composite products of this type, each component is introduced into the molding cavity via its own runner.
（発明か解決しようとする３題）
しかしながら、上記の如き従来より複合製品の射出成形
方法にあっては、各材料を独自のランナを介して射出成
形するような方法であったため、２次材料として２液温
合形のシリコーンゴムや熱硬化性シリコーンゴム、ある
いは熱過塑性エラストマーや硬度の低い樹脂を用いると
き、２次側の離型が困難であるという問題点があった。(Three problems to be solved by the invention) However, in the conventional injection molding method for composite products as described above, each material was injected through its own runner, so secondary materials When using a two-component thermal silicone rubber, a thermosetting silicone rubber, a thermoplastic elastomer, or a resin with low hardness, there is a problem in that it is difficult to release the mold on the secondary side.
また２次側材料か低粘度である場合には、２次側ランナ
より多くのパリが出るという問題点かあった。In addition, if the secondary side material had a low viscosity, there was a problem that more particles were generated than the secondary side runner.
因みに、ゴム型等の射出成形では、成形品及びランナ部
の離型か難かしく、特に硬度の低い場合には押し出しピ
ンの離型において成形品やランナか変形するたけて金型
からの離型ができないため、エアーブローやチャッキン
グを併用し強制的に金型より離型させている。そのため
、確実に離型させるためには、人手により成形品やラン
ナに形成された固形物を離型する必要がある。Incidentally, in injection molding of rubber molds, etc., it is difficult to release the molded product and runner from the mold, and especially when the hardness is low, the molded product and runner deform when releasing the ejector pin, making it difficult to release from the mold. Since this is not possible, air blowing and chucking are used in combination to force the product to release from the mold. Therefore, in order to reliably release the mold, it is necessary to manually release the solid material formed on the molded product or the runner.
また、ランナ部は成形品と異なり、形状、容積も小さく
離型が単独では困難なため、成形品のケート部の強度を
増しておき、成形品を離型させた時、この成形品の離型
力でランナ部に形成された固形物を離型させている。二
のため成形品とランナに形成された固形物を後工程で分
離させる必要があり、ゲート処理の必要の無い方式を採
用する事ができず自動化の阻害要因となっている。In addition, unlike a molded product, the runner part has a small shape and volume and is difficult to release from the mold by itself. Therefore, the strength of the cage part of the molded product is increased, and when the molded product is released, it is difficult to release the molded product by itself. The solid material formed on the runner part is released from the mold by the force of the mold. For this reason, it is necessary to separate the molded product and the solid matter formed on the runner in a subsequent process, and it is not possible to adopt a method that does not require gate processing, which is an impediment to automation.
さらに、ランナ設定面はパリが多く発生しゴム成形とパ
リ取り作業は当然の様に考えられている。Furthermore, many burrs occur on the runner setting surface, so rubber molding and burr removal work are considered as a matter of course.
そこで、本発明は離型困難な材料を含めて複数種の材料
を順次射出成形する複合成形において、離型困難な材料
の離型を容易とし、ハリの発生も少ない複合製品の射出
成形方法を提供することを目的とする。Therefore, the present invention provides an injection molding method for composite products that facilitates the release of materials that are difficult to release from the mold and reduces the occurrence of firmness in composite molding in which multiple types of materials, including materials that are difficult to release, are sequentially injection molded. The purpose is to provide.
［発明の構成］
（課題を解決するための手段）
上記課題を解決するための本発明は、射出成形機のノズ
ルより射出された材料を金型間のバチイングライン面に
形成されたランナを介して製品成形用のキャビティへ導
入すると共に、一方側の金型を適宜交換しつつ離型か困
難なイイ料を含めて異なる材料を順次射出することによ
り複合製品を成形するようにした複合製品の射出成形方
法において、
各材料の射出におけるランナを重畳させて形成し、最終
材す４の射出後に各ランナに形成された固形物を一括し
て除去することを特徴とする。[Structure of the Invention] (Means for Solving the Problems) The present invention for solving the above problems uses a runner formed on the batting line surface between the molds to pass the material injected from the nozzle of an injection molding machine. A composite product is molded by sequentially injecting different materials, including materials that are difficult to release, while changing the mold on one side as appropriate. The injection molding method is characterized in that the runners in the injection of each material are formed in a superimposed manner, and the solid matter formed in each runner is removed all at once after the injection of the final material 4.
また、この場合、前段ランナの一部に次段ランナ形成の
ための溝を設け、この溝を離型困難な材料のための次段
ランナに利用することを特徴とする。Further, in this case, a groove for forming a next-stage runner is provided in a part of the previous-stage runner, and this groove is used as a next-stage runner for a material that is difficult to release from the mold.
（作用）
本発明の複合製品の射出成形方法では、各材料の射出に
おけるランナを重畳させ、各ランナに形成され固形物を
最終材料の射出後に一括して除去するので、一般には離
型の困難な材料についてもラン＋に形成された固形物を
他のランナに形成された固形物と共に除去することかで
き、離型か容品である。(Function) In the injection molding method for composite products of the present invention, the runners in the injection of each material are overlapped, and the solid matter formed on each runner is removed all at once after the injection of the final material, so it is generally difficult to release the mold. Even for materials that are similar to runners, the solids formed on the runner can be removed together with the solids formed on other runners, and the product can be released from the mold or packaged.
また、前段ランナに溝を設け、この溝をＭ型困難な材料
のランナとする場合には、ランナ部において離型困難な
材料を離型容易な材料で囲んだ形とすることかでき、離
型をより容易とすることかできる。In addition, when a groove is provided in the front runner and this groove is used as a runner for a material that is difficult to mold, the runner part can have a shape in which the material that is difficult to release from the mold is surrounded by a material that is easy to release. Can you make the mold easier?
（実施例）
本発明の一実施例を示す第１図において、製品Ｗ。は、
硬質の熱可塑性樹脂を材料とする基台Ｗ１の開口面に２
液硬化型のシリコーンゴムをイイ料とするシール材Ｗ、
を複合化させた側で示されている。１は１次側ランナ、
２は２次側ランナを示す。(Example) In FIG. 1 showing an example of the present invention, product W. teeth,
2 on the opening surface of the base W1 made of hard thermoplastic resin.
A sealing material W using liquid-curing silicone rubber as a material,
It is shown on the composite side. 1 is the primary runner,
2 indicates a secondary runner.
第２図に詳細に示すように、本例では、１次側ランナ］
に／ｆｒｉ］ａを設け、この溝］ａを２次側ランナに利
用した態様である。また、本例では、２次側ランナ２を
用いての２次成形時に、アンダ形成用の突起３て１次固
形物を圧縮し、Ｋ １ ａの開口部の幅を縮めアンダー
を形成するようにしている。As shown in detail in FIG. 2, in this example, the primary runner]
In this embodiment, a /fri]a is provided, and this groove]a is used as a secondary runner. In addition, in this example, during secondary molding using the secondary runner 2, the primary solid material is compressed by the underforming projection 3, and the width of the opening of K 1 a is reduced to form an underside. I have to.
製品Ｗ。の成形手順を示すと、ます製品Ｗ。の基台Ｗ、
かランナ］を介して成形され、基台Ｗの四部に挿入され
ていたコアか交換される。二の時点でランナ１には溝１
ａが切られている。Product W. The following is the molding procedure for mass product W. base W,
The cores inserted into the four parts of the base W are replaced. At point 2, runner 1 has groove 1.
A is cut off.
交換後の金型にはランナ１の溝１ａを新たなランナとす
ると共に、シール材Ｗ２を形成するための形状が彫込ま
れている。In the replaced mold, the groove 1a of the runner 1 is used as a new runner, and a shape for forming the sealing material W2 is engraved.
そこで、ランナ２を介してシリコーンゴムを注入するこ
とにより、これか固形化するのを待って、製品Ｗ。が形
成される。Therefore, by injecting silicone rubber through runner 2 and waiting for it to solidify, product W was produced. is formed.
そこで、２次の金型を型開きし、ランナ１の底面を押し
ピン４で押し出すことにより、ランナ１２を共に離型す
ることができる。Therefore, by opening the secondary mold and pushing out the bottom surface of the runner 1 with the push pin 4, the runner 12 can be released together.
このとき、軟質材としててのシリコーンゴムは、ランナ
２内で固形化され、ランナ１内の硬質の樹脂内に囲まれ
た形となっているので、離型か容易で、かつシリコーン
ゴムのパリが最小で、材料が無駄とならない。At this time, the silicone rubber as a soft material is solidified in the runner 2 and surrounded by the hard resin in the runner 1, so it is easy to release from the mold and the silicone rubber is free. is minimized and no material is wasted.
また、第２図に示すように、適宜アンダーを形成するよ
うにしておけば、シリコーンゴムがコア側に付着される
ことかなく、自動的な加工において支障を来たすことか
ない。Further, as shown in FIG. 2, if an under layer is formed as appropriate, the silicone rubber will not adhere to the core side and will not cause problems in automatic processing.
さらに、１次側のランナ内の溝をアンダー状に変形して
２次側ランナを保持すればピンゲート、サブマリンケー
ト等のゲート切断方式を採用する事もでき、ゲート切断
の自動動作も可能である。Furthermore, by deforming the groove in the primary side runner into an under shape to hold the secondary side runner, gate cutting methods such as pin gate or submarine can be adopted, and automatic operation of gate cutting is also possible. .
第３図は、多数個数りにおいて、１次ランナ１の一部に
重畳部１ｂを設け、この重畳部１ｂ上に２次ランナを重
畳させた例である。FIG. 3 shows an example in which a superimposed part 1b is provided in a part of the primary runner 1, and a secondary runner is superimposed on this superimposed part 1b.
本例でも、１次ランナ１の除去時に２次ランナ２を併せ
て除去できるので、シリコーンゴムの離型が容易である
。In this example as well, since the secondary runner 2 can be removed at the same time as the primary runner 1, the silicone rubber can be easily released from the mold.
このように、１次及び２次ランナ１．２の重畳はその一
部において重畳すればよく、この重畳部分の離型効果に
より非重畳部を連鎖的に離型てきればよいものである。In this way, the primary and secondary runners 1.2 only need to be overlapped in a part thereof, and the non-overlapping parts can be released from the mold in a chain by the release effect of this overlapping part.
第４図は重畳用のランナ］Ｃを特別に設け、第３図のも
のと同様に、２次ランナをここで重畳させた例である。FIG. 4 shows an example in which a superimposing runner [C] is specially provided and a secondary runner is superimposed here, similar to the one in FIG.
本例の効果は第３図のものと同様である。The effect of this example is similar to that of FIG.
上記実施例では、１次材料を熱可塑性樹脂、２次材料を
２液硬化型のシリコーンゴムの例で示したか、２次材料
か熱可塑性エラストマーであっても同様である。また、
いわゆる２色成形の場合のように、１次及び２次か同し
材質で硬度等の異なる材料であっても同様である。In the above embodiments, the primary material is a thermoplastic resin and the secondary material is a two-component curing silicone rubber, but the same applies even if the secondary material is a thermoplastic elastomer. Also,
The same applies even if the primary and secondary materials are the same but have different hardness, as in the case of so-called two-color molding.
［発明の効果］
以上の通り、本発明は特許請求の範囲に記載の通りの複
合製品の射出成形方法であるので、射出成形機のノスル
より射出された材料を金型間のバチイングライン面に形
成されたランナを介して製品成形用のキャビティへ導入
すると共に、一方側の金型を適宜交換しつつ離型か困難
な材料を含めて複数種の材料を順次射出することにより
複合製品を成形するようにした複合製品の射出成形方法
において、異なる材料のランナを少なくとも部で重畳さ
せたので、各ランナに形成された固形物を最終材料の射
出後に同時に除去する二とかでき、離型困難な材料か含
まれていても容易に離型処理することかでき、かつハリ
を最小限度に押えることかできる。また、各ランナ部に
形成された固形物を容易に離型てきるので、ピンケート
、サブマリンケート等のケート切断方式を採用する事か
てき、自動的な加工か可能となる。[Effects of the Invention] As described above, since the present invention is an injection molding method for composite products as described in the claims, the material injected from the nostle of the injection molding machine is Composite products are produced by injecting multiple types of materials, including materials that are difficult to release, in sequence while introducing them into the product molding cavity through a runner formed in the In the injection molding method for composite products, the runners of different materials are overlapped at least in part, so that the solids formed on each runner can be removed at the same time after the final material is injected, making it difficult to release the mold. Even if some materials are included, it can be easily released from the mold, and the firmness can be kept to a minimum. Moreover, since the solid matter formed on each runner part can be easily released from the mold, automatic processing is possible by adopting a cage cutting method such as pinchate or submarine cut.
第１図は本発明の一実施例に係る複合製品の射出成形方
法を示す説明図、第２図は第１図の■■矢視拡大断面図
、第３図及び第４図は他の実施例を示す説明図である。
］・−１次ランナ
２２次ランナ
３・アンダー形成用の突起
Ｗｏ 複合製品
代理人 弁理士 −Ｅ 好 秀 和
第
図
第３
図Fig. 1 is an explanatory diagram showing an injection molding method for a composite product according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view taken in the direction of the It is an explanatory diagram showing an example. ]・-1st runner 22nd runner 3・Protrusion for under formation Wo Composite product agent Patent attorney -E Yoshihide Japanese Figure 3
Claims (2)
のパーティングライン面に形成されたランナを介して製
品成形用のキャビティへ導入すると共に、一方側の金型
を適宜交換しつつ離型が困難な材料を含めて複数種の材
料を順次射出することにより複合製品を成形するように
した複合製品の射出成形方法において、 各材料の射出におけるランナを重畳させて形成し、最終
材料の射出後に各ランナに形成された固形物を一括して
除去することを特徴とする複合製品の射出成形方法。(1) The material injected from the nozzle of the injection molding machine is introduced into the product molding cavity via the runner formed on the parting line surface between the molds, and the mold on one side is replaced as appropriate. In an injection molding method for composite products, in which a composite product is molded by sequentially injecting multiple types of materials, including materials that are difficult to release from the mold, runners for injection of each material are overlapped to form the final material. A method for injection molding a composite product, characterized in that solid matter formed on each runner is removed all at once after injection.
ナ形成のための溝を設け、この溝を離型困難な材料のた
めの次段ランナに利用することを特徴とする複合製品の
射出成形方法。(2) The composite product according to claim 1, characterized in that a groove for forming a next-stage runner is provided in a part of the previous-stage runner, and this groove is used as a next-stage runner for a material that is difficult to release from the mold. Injection molding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137199A JP2908839B2 (en) | 1990-05-29 | 1990-05-29 | Injection molding method for composite products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137199A JP2908839B2 (en) | 1990-05-29 | 1990-05-29 | Injection molding method for composite products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0431019A true JPH0431019A (en) | 1992-02-03 |
| JP2908839B2 JP2908839B2 (en) | 1999-06-21 |
Family
ID=15193111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2137199A Expired - Lifetime JP2908839B2 (en) | 1990-05-29 | 1990-05-29 | Injection molding method for composite products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2908839B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0942245A2 (en) * | 1998-03-12 | 1999-09-15 | Whirlpool Corporation | Door for domestic refrigerators |
| EP1074804A2 (en) * | 1999-08-03 | 2001-02-07 | BSH Bosch und Siemens Hausgeräte GmbH | Thermal insulating door for a refrigerator or a freezing compartment |
| US7766648B2 (en) | 2003-03-27 | 2010-08-03 | Omnova Solutions Inc. | Coating in multiple injection molding part cavities |
| US20110115356A1 (en) * | 2009-11-18 | 2011-05-19 | Jonathan Nash | Shelf for an appliance |
-
1990
- 1990-05-29 JP JP2137199A patent/JP2908839B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0942245A2 (en) * | 1998-03-12 | 1999-09-15 | Whirlpool Corporation | Door for domestic refrigerators |
| EP0942245A3 (en) * | 1998-03-12 | 2000-03-01 | Whirlpool Corporation | Door for domestic refrigerators |
| EP1074804A2 (en) * | 1999-08-03 | 2001-02-07 | BSH Bosch und Siemens Hausgeräte GmbH | Thermal insulating door for a refrigerator or a freezing compartment |
| EP1074804A3 (en) * | 1999-08-03 | 2001-08-16 | BSH Bosch und Siemens Hausgeräte GmbH | Thermal insulating door for a refrigerator or a freezing compartment |
| US7766648B2 (en) | 2003-03-27 | 2010-08-03 | Omnova Solutions Inc. | Coating in multiple injection molding part cavities |
| US20110115356A1 (en) * | 2009-11-18 | 2011-05-19 | Jonathan Nash | Shelf for an appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2908839B2 (en) | 1999-06-21 |
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