JPH04301419A - Multilayer vessel with leg and manufacture thereof - Google Patents
Multilayer vessel with leg and manufacture thereofInfo
- Publication number
- JPH04301419A JPH04301419A JP6688091A JP6688091A JPH04301419A JP H04301419 A JPH04301419 A JP H04301419A JP 6688091 A JP6688091 A JP 6688091A JP 6688091 A JP6688091 A JP 6688091A JP H04301419 A JPH04301419 A JP H04301419A
- Authority
- JP
- Japan
- Prior art keywords
- legs
- container
- container body
- leg
- multilayer
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 16
- 238000001746 injection moulding Methods 0.000 claims description 8
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 235000013305 food Nutrition 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 230000035622 drinking Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 33
- 239000007789 gas Substances 0.000 description 13
- 239000004743 Polypropylene Substances 0.000 description 10
- -1 polypropylene Polymers 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 6
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 6
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 235000021185 dessert Nutrition 0.000 description 1
- 235000011850 desserts Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 235000011962 puddings Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、プラスチック製の多層
容器で、特にはデザート、飲料等のの食品を収納するに
好適な脚付多層容器およびその製造方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multilayer container made of plastic, and particularly to a multilayer container with legs suitable for storing foods such as desserts and beverages, and a method for manufacturing the same.
【０００２】0002
【従来の技術】従来より、食品等を収納する容器として
、ガスバリヤー性、内容物適性などの理由から、プラス
チック製の多層容器が使用されている。この種の多層容
器は一般に多種のプラスチックフィルムを積層したシー
トを真空、圧空成形方法等により、カップ容器状にする
か、または、多層射出成形方法により、２種３層あるい
は３種５層でカップ容器状に成形するものがある。また
、プリン、コーヒーゼリー等のデザート食品においては
、外観上の点、あるいは持ちやすさの点から脚付容器の
形状が望まれ、前記真空、圧空成形方法等のシートから
成形することは困難であるが、射出成形法では脚付の容
器を成形することは可能であるため、現在でも多数使用
されている。BACKGROUND OF THE INVENTION Conventionally, multilayer containers made of plastic have been used as containers for storing foods and the like for reasons such as gas barrier properties and suitability for contents. This type of multilayer container is generally made by laminating sheets of various plastic films into a cup container shape by vacuum or pressure forming, or by multilayer injection molding, by forming a cup into a cup with three layers of two types or five layers of three types. Some are molded into container shapes. In addition, for dessert foods such as pudding and coffee jelly, the shape of containers with legs is desired from the viewpoint of appearance and ease of holding, and it is difficult to form them from sheets using the vacuum or pressure forming method described above. However, since it is possible to mold containers with legs using injection molding, it is still widely used today.
【０００３】しかしながら、現在使用されている射出成
形法による脚付容器はプラスチックは単層であり、ガス
バリヤー性、内容物適性の点から充分といえるものでは
ない。更に容器に脚を付けたものとしては、脚を別体に
成形し、容器本体とこの別体の脚を接着剤、あるいは熱
接着するものがあるが使用時に脚がとれてしまう恐れが
あるという問題点があった。[0003] However, currently used containers with legs made by injection molding are made of a single layer of plastic, and are not satisfactory in terms of gas barrier properties and suitability for contents. Additionally, there are containers with legs attached to them, where the legs are molded separately and the separate legs are glued or heat-bonded to the container body, but there is a risk that the legs may come off during use. There was a problem.
【０００４】0004
【発明が解決しようとする課題】本発明は、食品等を収
納する容器において、容器本体が二種三層、あるいは三
種五層で、脚が容器本体と一体化されている脚付多層容
器を提供することを目的とする。[Problems to be Solved by the Invention] The present invention provides a multilayer container with legs for storing foods, etc., in which the container body has two layers, three layers, or three layers and five layers, and the legs are integrated with the container body. The purpose is to provide.
【０００５】[0005]
【課題を解決する手段】本発明は、上記問題点を解決し
たものであっても、内容物を収納するカップ形状でガス
バリヤー樹脂層を含む少なくとも合成樹脂が３層以上の
容器本体の下方に脚部を有する脚付多層容器であって、
前記容器本体の底部に設けられた突起が脚部の一部に埋
め込まれるように一体化されていることを特徴とする脚
付多層容器である。[Means for Solving the Problems] Even though the above-mentioned problems are solved, the present invention has a cup-shaped container for storing the contents and has at least three or more layers of synthetic resin including a gas barrier resin layer below the container body. A legged multilayer container having legs,
The multilayer container with legs is characterized in that a protrusion provided on the bottom of the container body is integrated so as to be embedded in a part of the leg.
【０００６】また、上記多層容器を製造するにあたり、
ガスバリヤー樹脂層含む少なくとも３層以上の合成樹脂
からなる容器本体を射出成形法にて底部に突起を設けた
カップ形状のキャビティを有するにて成形し、次いで前
記容器本体がインサートでき、かつインサートされた容
器本体の底部側に連続して脚部形状のキャビティを有す
る金型にて、脚部用の合成樹脂を射出して前記容器本体
の突起を脚部の一部に埋め込むように成形することを特
徴とするものである。[0006] Furthermore, in manufacturing the above multilayer container,
A container body made of at least three or more synthetic resin layers including a gas barrier resin layer is molded by an injection molding method into a cup-shaped cavity with a protrusion at the bottom, and then the container body can be inserted, and the container body can be inserted. A mold having a leg-shaped cavity continuous to the bottom side of the container body is used to inject a synthetic resin for the legs so that the protrusion of the container body is embedded in a part of the leg. It is characterized by:
【０００７】[0007]
【作用】本発明は上記のごとくであり、予め容器本体を
成形しておき、この容器本体を別の金型にインサートし
て、脚部を成形すると同時に前記容器本体と脚部を一体
かしたもので、しかも容器本体の底部に設けた突起を脚
部に埋め込むようにしたので、容器本体と脚部が強固に
一体化し、流通時あるいは飲食時に分離することもなく
、また容器本体をガスバリヤー樹脂層を使用し、多層射
出成形法にて成形した場合には、前記突起を射出金型の
ゲート位置と一致させて設けておくことにより、ゲート
跡を切断処理する必要がなく、ガスバリヤー樹脂を外側
の樹脂で封印できるので内容物保存性に優れた容器を提
供でき、しかも脚付のため外観及び持ち運びに優れた容
器を提供するものである。[Operation] The present invention is as described above, and the container body is molded in advance, this container body is inserted into another mold, and the legs are molded, and at the same time, the container body and the legs are integrated. Moreover, since the protrusions provided at the bottom of the container body are embedded in the legs, the container body and legs are firmly integrated, so they do not separate during distribution or eating and drinking, and the container body can be used as a gas barrier. When a resin layer is used and molded using a multilayer injection molding method, by aligning the protrusion with the gate position of the injection mold, there is no need to cut the gate marks, and the gas barrier resin Since the container can be sealed with an outer resin, it is possible to provide a container that is excellent in preserving the contents.Furthermore, since it has legs, it is possible to provide a container that is excellent in appearance and portability.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面を用いて説明す
る。図１は本発明による脚付多層容器の一実施例を示す
説明断面図であり、容器本体（ １）と脚部（ ２）は
一体に成形されている。ここで、容器本体（ １）は中
心層として、エチレン酢酸ビニル共重合体ケン化物（以
下ＥＶＯＨという）などのガスバリヤー樹脂層（ ３）
、最内外層としては、内容物適性あるいは強度的性のあ
るポリプロピレン樹脂などの基材層（ ４）（ ４）、
また前記ガスバリヤー樹脂層（ ３）と最内外層を接着
するための、ポリプロピレン変性樹脂としてのマレイン
酸グラフト変性ポリプロピレン樹脂などの接着剤層（
５）（ ５）の３種５層構成をしている。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory sectional view showing one embodiment of a multilayer container with legs according to the present invention, in which a container body (1) and legs (2) are integrally molded. Here, the container body (1) has a gas barrier resin layer (3) such as saponified ethylene vinyl acetate copolymer (hereinafter referred to as EVOH) as the center layer.
, as the innermost and outermost layers, a base material layer such as polypropylene resin that is suitable for contents or has strength (4) (4);
In addition, an adhesive layer (such as a maleic acid graft modified polypropylene resin) as a polypropylene modified resin is used to bond the gas barrier resin layer (3) and the outermost layer.
5) It has a five-layer configuration of three types (5).
【０００９】脚部（ ２）は下端に円板状の安定板部（
６）と円柱状の柱部（ ７）とからなり、前記容器本
体（ １）の底部（１１）とこの柱部が連設され一体化
されている。また連設部分においては、容器本体の底部
には外側に突起（ ８）が突設され、この突起（ ８）
が前記柱部（ ７）に埋め込まれたように一体化されて
いる。ここで、この実施例の脚付多層容器の製造方法を
説明すると、先ず図２に示すような、容器本体の形状を
からなるキャビティ（２１）を有する金型（２２）でゲ
ート（２３）から順次、最内外層となるポリプロピレン
、接着剤層となるポリプロピレン変性樹脂としてのマレ
イン酸グラフト変性ポリプロピレン樹脂、前記ガスバリ
ヤー樹脂層（ ３）となるＥＶＯＨを射出して容器本体
を成形する。この容器本体は前記の如く底部（１１）に
は突起（ ８）を有するもので、好ましくは、射出成形
の際のゲート跡を切断せず残しとおいて突起として使用
する。ただし、一般的なゲート跡では一体化後の強度を
満足しない場合には、底部のゲート近傍に径および厚み
を大きくして突起とすることが好ましい。The leg portion (2) has a disk-shaped stabilizing plate portion (
6) and a cylindrical pillar part (7), and the bottom part (11) of the container body (1) and this pillar part are connected and integrated. In addition, in the continuous part, a protrusion ( 8 ) is provided on the bottom of the container body and protrudes outward.
is embedded and integrated into the pillar portion (7). Here, to explain the manufacturing method of the multilayer container with legs of this example, first, as shown in FIG. Polypropylene as the innermost and outermost layers, maleic acid graft modified polypropylene resin as the polypropylene modified resin as the adhesive layer, and EVOH as the gas barrier resin layer (3) are sequentially injected to form a container body. As described above, this container body has a protrusion (8) on the bottom (11), and preferably, the gate mark during injection molding is left uncut and used as the protrusion. However, if a general gate mark does not satisfy the strength after integration, it is preferable to increase the diameter and thickness near the gate at the bottom to form a protrusion.
【００１０】次に、図３に示すように、前記容器本体が
インサートでき、しかもその下に容器の脚部となるキャ
ビティ（３１）状を有する金型（３２）を用い、ゲート
（３３）からポリプロピレンを射出して脚部を成形する
と同時に前記突起（ ８）を柱部（ ７）に埋め込むよ
うにして、容器本体と一体化する。ここで、上記実施例
では、脚部（ ２）として、安定板部（ ６）と柱部（
７）とからなるものであったが、図４に示すように脚
部として逆カップ状のスカート部（１３）とそのスカー
ト部（１３）の上端を連結する天壁部（１４）となるも
のも使用できる。この場合には、前記突起（ ８）を埋
め込むよう前記天壁部（１４）の中心の下面に肉厚部（
１５）を設けることが好ましく、また前記天壁部（１４
）としては図５の底面図に示すような十字状であっても
よい。Next, as shown in FIG. 3, a mold (32) into which the container body can be inserted and which has a cavity (31) underneath which will become the leg of the container is used. At the same time as polypropylene is injected to mold the legs, the protrusions (8) are embedded in the pillars (7) to integrate them with the container body. Here, in the above embodiment, the stabilizer part (6) and the column part (2) are used as the leg part (2).
7), but as shown in Fig. 4, it serves as an inverted cup-shaped skirt part (13) as a leg part and a ceiling wall part (14) that connects the upper end of the skirt part (13). can also be used. In this case, a thick part (
15) is preferably provided, and the ceiling wall portion (14) is preferably provided.
) may be in the shape of a cross as shown in the bottom view of FIG.
【００１１】このようにして、前記突起（ ８）として
、容器本体（ １）の成形時のゲート跡を切断にること
により、ゲート跡の切断加工の必要がないばかりではな
く、図１の拡大図に示すように中間層のＥＶＯＨの層が
露出せず封止した状態を保つことが可能である。[0011] In this way, by cutting the gate marks during molding of the container body (1) to form the protrusions (8), there is not only no need to cut the gate marks, but also an enlarged view of Fig. 1. As shown in the figure, it is possible to maintain a sealed state without exposing the intermediate EVOH layer.
【００１２】本発明の具体的実施例として、前記基材層
として、ポリプロピレン樹脂層を外層を２８０μ、内層
を３００μ、ガスバリヤー層として、ＥＶＯＨ層を７０
μ、外層とＥＶＯＨ層との接着剤層、内層とＥＶＯＨ層
との接着剤層として、マレイン酸グラフト変性ポリプロ
ピレン樹脂をそれぞれ１８０μ、１７０μの平均肉厚を
有する容器本体に別の射出成形金型で脚部としてポリプ
ロピレン樹脂を射出して脚付多層容器を作成し、この脚
付多層容器をアルミニュウム製蓋材で密封し、酸素透過
度を測定したところ、０．００４ｃｃ ／ｐａｃｋ・ｄ
ａｙ であった。また、容器本体と脚部の接続部は従来
の接着剤を用いたものに比べ強固に一体化していること
が判明した。As a specific embodiment of the present invention, the base material layer includes a polypropylene resin layer with an outer layer of 280μ and an inner layer with a thickness of 300μ, and a gas barrier layer with an EVOH layer of 70μ.
μ, an adhesive layer between the outer layer and the EVOH layer, and a maleic acid-grafted modified polypropylene resin as an adhesive layer between the inner layer and the EVOH layer, respectively, were molded into the container body with an average wall thickness of 180μ and 170μ in separate injection molds. A multilayer container with legs was made by injecting polypropylene resin as the legs, and this multilayer container with legs was sealed with an aluminum lid and the oxygen permeability was measured to be 0.004cc/pack・d.
It was ay. It was also found that the connection between the container body and the legs was more strongly integrated than in conventional adhesives.
【００１３】[0013]
【効果】本発明の脚付多層容器によれば、容器本体がガ
スバリヤー性に優れた樹脂を使用することにより、内容
物保存適性に優れているばかりではなく、脚部を一体化
してあるので、外観上、あるいは持ちやすいという効果
があり、さらに容器本体の底部に設けた突起と脚部を一
体かするので接続強度のある脚付容器を提供できる。[Effects] According to the multilayer container with legs of the present invention, the container body is made of resin with excellent gas barrier properties, so it not only has excellent suitability for storing contents, but also has integrated legs. This is effective in terms of appearance and ease of holding, and since the protrusions provided on the bottom of the container body and the legs are integrated, it is possible to provide a container with legs that has a strong connection.
【００１４】また、容器本体を多層射出成形で作製し、
ゲート跡を切断処理することなく、そのまま使用でき、
しかも切断しないことにより、さらにガスバリヤー性が
向上した多層容器を提供することができる。[0014] Furthermore, the container body is manufactured by multilayer injection molding,
Can be used as is without cutting the gate marks,
Moreover, by not cutting, it is possible to provide a multilayer container with further improved gas barrier properties.
【００１５】[0015]
【図１】本発明の脚付多層容器の一実施例を示す断面説
明図である。FIG. 1 is an explanatory cross-sectional view showing an embodiment of a multilayer container with legs according to the present invention.
【図２】図１に示した脚付多層容器の容器本体を作成す
るときに使用する金型の一実施例を示す説明図である。FIG. 2 is an explanatory diagram showing an example of a mold used when producing the container body of the multilayer container with legs shown in FIG. 1;
【図３】図２に示した金型で作成した容器本体を使用し
て本発明の脚付多層容器を作成するときに使用する金型
の一実施例を示す一部拡大説明図である。3 is a partially enlarged explanatory view showing one embodiment of a mold used when producing a multilayer container with legs of the present invention using a container body produced with the mold shown in FIG. 2; FIG.
【図４】本発明の他の実施例を示す断面説明図である。FIG. 4 is a cross-sectional explanatory diagram showing another embodiment of the present invention.
【図５】図４の実施例の底面を示す説明図である。FIG. 5 is an explanatory diagram showing the bottom surface of the embodiment of FIG. 4;
１ 容器本体 ２ 脚部 ３ ガスバリヤー樹脂層 ４ 基材層 ５ 接着剤層 ６ 安定板部 ７ 柱部 ２２ 容器本体成形用金型 ３２ 脚付容器成形用金型 1 Container body 2 Legs 3 Gas barrier resin layer 4 Base material layer 5 Adhesive layer 6 Stabilizing plate part 7 Column part 22 Mold for molding the container body 32 Mold for molding containers with legs
Claims (2)
ヤー樹脂層を含む少なくとも合成樹脂が３層以上の容器
本体の下方に脚部を有する脚付多層容器であって、前記
容器本体の底部に設けられた突起が脚部の一部に埋め込
まれるように一体化されていることを特徴とする脚付多
層容器。1. A multi-layered container with legs, which is cup-shaped for storing contents and has legs at the bottom of a container body made of at least three or more layers of synthetic resin including a gas barrier resin layer, the bottom of the container body being A multilayer container with legs, characterized in that a protrusion provided on the leg is integrated so as to be embedded in a part of the leg.
以上の合成樹脂からなる容器本体を射出成形法にて底部
に突起を設けたカツプ形状のキャビティを有する金型に
て成形し、次いで前記容器本体がインサートでき、かつ
インサートされた容器本体の底部側に連続して脚部形状
のキャビティを有する金型にて、脚部用の合成樹脂を射
出して前記容器本体の突起を脚部の一部に埋め込むよう
に成形することを特徴とする脚付多層容器の製造方法。2. A container body made of at least three or more synthetic resin layers including a gas barrier resin layer is molded by injection molding in a mold having a cup-shaped cavity with a protrusion at the bottom, and then the container body is Using a mold into which the main body can be inserted and which has a leg-shaped cavity continuous to the bottom side of the inserted container main body, synthetic resin for the leg is injected to form the protrusion of the container main body into one part of the leg. A method for manufacturing a multilayer container with legs, characterized by forming the container so as to be embedded in the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6688091A JPH04301419A (en) | 1991-03-29 | 1991-03-29 | Multilayer vessel with leg and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6688091A JPH04301419A (en) | 1991-03-29 | 1991-03-29 | Multilayer vessel with leg and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04301419A true JPH04301419A (en) | 1992-10-26 |
Family
ID=13328645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6688091A Pending JPH04301419A (en) | 1991-03-29 | 1991-03-29 | Multilayer vessel with leg and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04301419A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06226882A (en) * | 1993-02-01 | 1994-08-16 | Inax Corp | Manufacture of resin bathtub |
| US6823624B2 (en) * | 2001-07-17 | 2004-11-30 | S.I.T., Inc. | Plastic article with protuberance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5081165A (en) * | 1973-11-16 | 1975-07-01 | ||
| JPS54119555A (en) * | 1978-03-10 | 1979-09-17 | Jiyaree Kk | Double forming method of plastics |
| JPS6282478A (en) * | 1985-10-04 | 1987-04-15 | アテツク・コ−ポレ−シヨン | Device for generating raster pattern from data representing geometrical object |
-
1991
- 1991-03-29 JP JP6688091A patent/JPH04301419A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5081165A (en) * | 1973-11-16 | 1975-07-01 | ||
| JPS54119555A (en) * | 1978-03-10 | 1979-09-17 | Jiyaree Kk | Double forming method of plastics |
| JPS6282478A (en) * | 1985-10-04 | 1987-04-15 | アテツク・コ−ポレ−シヨン | Device for generating raster pattern from data representing geometrical object |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06226882A (en) * | 1993-02-01 | 1994-08-16 | Inax Corp | Manufacture of resin bathtub |
| US6823624B2 (en) * | 2001-07-17 | 2004-11-30 | S.I.T., Inc. | Plastic article with protuberance |
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