JPH01263356A - Antistatic decoration sheet - Google Patents
Antistatic decoration sheetInfo
- Publication number
- JPH01263356A JPH01263356A JP9388688A JP9388688A JPH01263356A JP H01263356 A JPH01263356 A JP H01263356A JP 9388688 A JP9388688 A JP 9388688A JP 9388688 A JP9388688 A JP 9388688A JP H01263356 A JPH01263356 A JP H01263356A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- insulating
- conductor layer
- layer
- decorative sheet
- 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
- 238000005034 decoration Methods 0.000 title abstract 3
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 239000000853 adhesive Substances 0.000 claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- 239000012212 insulator Substances 0.000 claims abstract description 8
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 3
- 238000007740 vapor deposition Methods 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 230000003749 cleanliness Effects 0.000 abstract description 5
- 239000002985 plastic film Substances 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Finishing Walls (AREA)
Abstract
Description
［産業上の利用分野］
本発明は、帯電防止化粧シート、とくに工業用のクリー
ンルームの壁に貼る壁紙の改良に関する。
［従来の技術］
工業用のクリーンルームの壁紙を施工する場合、従来は
アスベールやグラザールなどの無機質系のパネルが広く
使用されている。 この種のパネルは重量があり、施工
に手間どる上にコストが高い。
合成樹脂系の壁紙は、軽く、施工が容易であって高価で
ないか、空気中のホコリが静電気のため付着して蓄積す
るので、達成できるクリーン度は低いものでおる。
この点を改善した壁紙として、出願人は、壁紙基材シー
トの上に導電性フィラーを含有する硬化樹脂の層を設（
プたクリーンルーム用壁紙を発明し、すでに提案した（
特願昭６２−１３２０７８号）。
この壁紙は、表面か帯電せずホコリの付着が避けられ、
達成できるクリーン度は高いものであって、しかも軽く
て施工か容易でおり、］ス］・が低ｒＭな上に、耐汚染
性、耐摩耗性、耐溶剤性などの表面物性にすぐれている
。
［発明か解決しようとする課題］
本発明の目的は、先に提案した技術を一歩進めて、クリ
ーン度あにび居住性に一層すぐれた化粧シートを提供す
ることにある。
［課題を解決するだめの手段］
本発明の帯電防止化粧シートは、最も基本的には、絶縁
性の基材シーｉ〜の上に導体層ａ３よび絶縁シートを順
に＠層した構成を右する。 ただし、これは化粧シート
を貼（ｑする壁面が導体に等しい場合に、本発明の効果
を生じる。
代表的な態様としては、本発明の帯電防止化粧シートは
、第１図に示すように、絶縁性の基材シート５上に、導
体層４、絶縁体層３、導体層２および絶縁シー１へ１を
順に積層してなる。
基材シート、絶縁体層および絶縁シートには、ポリ塩化
ビニル、ポリエステル、ボリエヂレン、ボリア［］ピレ
ン、Ａ Ｂ Ｓ ＠脂、ポリフッ化ビニル、ポリビニリ
デンフロライ１〜、エヂレンーテトラフルオロエチレン
共重合体などのプラスチックシートまたは紙を使用する
。 基剤シートに紙を使用する場合、壁紙用裏打紙とし
て常用されているものが好適でおる。 絶縁抵抗、ラミ
ネー１〜適正の点から、プラスチックシートであれば厚
さ１０〜・２００ μｍのものを、紙であれば４０〜９
０９／尻のものを使用するとよい。
導体層は、絶縁体層または基材シートに適宜の方法で形
成する。 たとえば、真空蒸着、スパッタリングまたは
無電解メツキにより、Ｃｒ、 Ａ、ｆ）。
Ｎｉ、Ｃｕなどの導電性物質で厚さ０．０５〜１μｍ程
度の被膜を形成すること、厚さ１０−・３０μ７ｎの八
ρやＣｕの金属箔をラミネー１〜すること、あるいは、
ｃ、 Ｎ： 、ｃｕまたは△ｑの粉末をアクリル、ポリ
エステル、エポキシなどの樹脂バインダー中に分散した
導電性塗料を、厚さ５〜５０μｍ程度に、スプレー塗装
、ロールコートまたはグラビアコートすることが推奨で
きる。
施工後に表面となる絶縁シートに、絵柄の印刷はエンボ
スを施して美観を高めることは、推奨される態様である
。
本発明の化粧シートは多くの態様かあるが、第２図に示
ずように、絶縁シート１として絵柄の印刷１１（または
エンボス）を施した半硬質または軟質のポリ塩化ビニル
のシート１△および１Ｂの組み合わせを、絶縁体層３と
してポリエステルを、基材シート５として坪量４０〜９
０９／ｍの紙または半硬質ポリ塩化ビニルを使用し、導
体＠２および４をアルミ蒸着によって形成したものが、
とくに好ましい。
基材シート５の裏面に、粘着剤６を塗布し、離型紙７を
当ててｃｆ５＜と施工に便で必る。
導体層２および４と絶縁シート１または基材シート５と
の接合は、接着剤を用いたドライラミネートまたは押出
しコーティングなどの、プラスチックフィルムと金属箔
との接合に適用されている一般的な手法で行なえばよい
。
本発明の化粧シーｉ〜を、導体層（２層ある場合はいず
れか一方）かアースされるように壁に貼伺すると、帯電
防止効果は一層高くなる。[Industrial Field of Application] The present invention relates to an antistatic decorative sheet, particularly to improvements in wallpaper that is applied to the walls of industrial clean rooms. [Prior Art] When installing wallpaper in industrial clean rooms, inorganic panels such as asvert and Glazal have been widely used. This type of panel is heavy, takes time to install, and is expensive. Synthetic resin wallpapers are lightweight, easy to install, and not expensive, and because dust in the air adheres and accumulates due to static electricity, the level of cleanliness that can be achieved is low. As a wallpaper that has improved this point, the applicant has created a layer of cured resin containing a conductive filler on a wallpaper base sheet (
He invented wallpaper for clean rooms and has already proposed it (
(Patent Application No. 132078/1982). This wallpaper has no static charge on the surface and prevents dust from adhering to it.
It achieves a high degree of cleanliness, is lightweight and easy to install, has low rM, and has excellent surface properties such as stain resistance, abrasion resistance, and solvent resistance. . [Problems to be Solved by the Invention] An object of the present invention is to take the previously proposed technology one step further and provide a decorative sheet with even better cleanliness and livability. [Means for Solving the Problems] The antistatic decorative sheet of the present invention most basically has a structure in which a conductor layer a3 and an insulating sheet are layered in this order on an insulating base material sheet i. . However, this produces the effect of the present invention when the wall surface on which the decorative sheet is attached is equivalent to a conductor.As a typical embodiment, the antistatic decorative sheet of the present invention can be applied as shown in FIG. A conductor layer 4, an insulator layer 3, a conductor layer 2 and an insulating sheet 1 are laminated in this order on an insulating base sheet 5.The base sheet, the insulator layer and the insulating sheet are made of polychloride. A plastic sheet or paper made of vinyl, polyester, polyester, polyethylene, boria[]pyrene, ABS@resin, polyvinyl fluoride, polyvinylidene fluoride 1~, ethylene-tetrafluoroethylene copolymer, etc. is used.Base sheet When using paper for wallpaper, it is preferable to use paper that is commonly used as a backing paper for wallpaper.In terms of insulation resistance and lamination, a plastic sheet with a thickness of 10 to 200 μm is preferable. If it is 40~9
09/ It is better to use the one from the buttocks. The conductor layer is formed on the insulator layer or the base sheet by an appropriate method. For example, Cr, A, f) by vacuum evaporation, sputtering or electroless plating. Forming a film with a thickness of about 0.05 to 1 μm with a conductive substance such as Ni or Cu, or laminating a metal foil of 8μ or Cu with a thickness of 10 to 30 μ7, or
c, N: It is recommended to spray, roll coat, or gravure coat a conductive paint containing powder of , cu, or △q dispersed in a resin binder such as acrylic, polyester, or epoxy to a thickness of approximately 5 to 50 μm. can. It is recommended that the insulating sheet, which will become the surface after installation, be embossed with a pattern to enhance its aesthetic appearance. The decorative sheet of the present invention has many embodiments, but as shown in FIG. 1B, the insulator layer 3 is polyester, and the base sheet 5 has a basis weight of 40 to 9.
09/m paper or semi-rigid polyvinyl chloride, and the conductors @2 and 4 were formed by aluminum vapor deposition.
Particularly preferred. An adhesive 6 is applied to the back side of the base sheet 5, and a release paper 7 is applied to the back side of the base sheet 5 to make cf5<. The conductor layers 2 and 4 and the insulating sheet 1 or the base sheet 5 are bonded by a common method applied to bonding a plastic film and a metal foil, such as dry lamination using an adhesive or extrusion coating. Just do it. If the decorative sheet i~ of the present invention is pasted on a wall so that the conductor layer (or one of the conductor layers, if there are two layers) is grounded, the antistatic effect will be further enhanced.
本発明の化粧シートは、２板の導体層を存在させて平行
平板コンデンサーを形成することにより、電気力線をそ
の内部に閉じ込める効果が生じる。
この効果と、導体で空間を囲んでその内部と外部とを電
気的に遮断するという静電遮蔽の効果があいまって、シ
ート表面の帯電防止がさらに効果的に行なえる。
代表的な態様においては、２枚の導体層を化粧シート内
に設（プで、上記の平行平板コンデンサーを形成する。
壁面が導体である場合、それを−方の導体層とみなす
ことができ、化粧シートにひとつの導体層を設けただけ
でも同様の効果が得られる。
【実施例］
下記のようにして、４種の化粧シートを用意した。
実施例１
厚さ８０μｍのポリ塩化ビニルを基材シートとし、その
上に、両面にＡ、Ｑを５００Ａの厚さに真空蒸着したポ
リエステルフィルム（厚さ２５μｍ）、および絵柄をグ
ラビア印刷した着色不透明のポリ塩化ビニルシート上に
無色透明のポリ塩化ビニルシートを熱プレスでダブリン
グした絶縁シート（厚さ１６０μＴｒＬ）を、二液硬化
型ポリウレタン系接着剤を用いてドライラミネートした
。
比較例１
Ａ、Ｉ！蒸着層のないポリエステルフィルムを用いたほ
かは、実施例１と同様にして化粧シートを製造した。
実施例２
一方の面にはＡｆＪを５００Ａの厚さに真空蒸着し、他
方の面にはアクリル樹脂系粘着剤を塗布して離型紙（厚
さ５０μｍのＯＰＰフィルム）を当てたポリエステルフ
ィルム（厚さ２５μｍ）上に、実施例１と同じ絶縁シー
ｉ〜を、同じ接着剤でドライラミネートした。
比較例２
Ａ〃蒸着層のないポリエステルを用いたほかは、実施例
２と同様にして、化粧シートを製造した。
実施例１および比較例１の化粧シートはコンクリート製
の壁に貼り、実施例２および比較例２の化粧シートは、
スチール製のパネルに貼りつけ、シート表面をホワイト
ボード用エレイザー「コクヨＲＡ−１２Ｊ （ｌクヨ
■製）で１５往復こすり、２０秒後にシート上３ｃｍの
電位を静電気測定器［スタチ］ンＭｌ （シシド静電
気■製）で測定した。 試験は、温度２５°Ｃ１湿度４
０％の条件下で行なった。 結果を下に示す。
化粧シート 電位（Ｖ）
実施例１ ＋５０
比較例１ ＋２０，０００
実施例２！ ＋１５０
比較例２ ＋２５，０００
この結果から、本発明の化粧シートは高い帯電防止効果
をもつことがわかる。
［発明の効果］
本発明の化粧シートは、表面に帯電する静電気量が少な
いので、クリーンルームの壁紙などに用いたとき一層高
いクリーン度を達成することができる。
また、シート表−面をプラスチックシートで被覆した構
成となっているので、導体層が露出している従来品にく
らべ、導体層の摩耗、酸化、汚染による導電性の低下が
少なく、耐久性とくに耐擦傷性にすぐれている。 さら
に、表面の絶縁シートに絵柄印刷やエンボス加工などを
施せば、美観を高めて室内の居住性を改善することがで
きる。
本発明の化粧シートは、クリーンルーム用壁紙のほか、
ＩＣなどの包装材としても使用できる。The decorative sheet of the present invention has the effect of confining electric lines of force therein by providing two conductor layers to form a parallel plate capacitor. This effect is combined with the electrostatic shielding effect of surrounding the space with a conductor to electrically isolate the inside and outside of the space, making it possible to prevent static electricity on the sheet surface even more effectively. In a typical embodiment, two conductor layers are placed within a decorative sheet to form the parallel plate capacitor described above. If the wall surface is a conductor, it can be considered as the negative conductor layer. Similar effects can be obtained by simply providing one conductor layer on a decorative sheet. [Example] Four types of decorative sheets were prepared as follows. Example 1 Polyvinyl chloride with a thickness of 80 μm was prepared. A polyester film (thickness 25 μm) with A and Q vacuum-deposited on both sides to a thickness of 500 A is used as a base sheet, and a colorless transparent polyvinyl chloride sheet with a gravure-printed pattern is placed on top of the polyester film (thickness 25 μm). An insulating sheet (thickness 160 μTrL) made by doubling a vinyl chloride sheet by heat pressing was dry laminated using a two-component curing polyurethane adhesive. Comparative Example 1 A, I! A polyester film without a vapor deposited layer was used, etc. A decorative sheet was manufactured in the same manner as in Example 1. Example 2 AfJ was vacuum-deposited to a thickness of 500A on one side, an acrylic resin adhesive was applied on the other side, and release paper was applied. On a polyester film (25 μm thick) coated with (OPP film 50 μm thick), the same insulation sheet i as in Example 1 was dry laminated with the same adhesive. Comparative Example 2 A Polyester without vapor deposition layer A decorative sheet was produced in the same manner as in Example 2, except that the decorative sheet of Example 1 and Comparative Example 1 was applied to a concrete wall, and the decorative sheet of Example 2 and Comparative Example 2 was applied to a concrete wall.
Paste it on a steel panel, rub the surface of the sheet 15 times with a whiteboard Eraser KOKUYO RA-12J (manufactured by KUYO ■), and after 20 seconds measure the potential at a distance of 3 cm above the sheet using a static electricity measuring device The test was conducted at a temperature of 25°C and a humidity of 4.
The test was carried out under 0% conditions. The results are shown below. Decorative sheet Potential (V) Example 1 +50 Comparative example 1 +20,000 Example 2! +150 Comparative Example 2 +25,000 This result shows that the decorative sheet of the present invention has a high antistatic effect. [Effects of the Invention] Since the decorative sheet of the present invention has a small amount of static electricity charged on its surface, it can achieve a higher degree of cleanliness when used as wallpaper in a clean room. In addition, since the sheet surface is covered with a plastic sheet, compared to conventional products in which the conductor layer is exposed, there is less reduction in conductivity due to abrasion, oxidation, and contamination of the conductor layer, and the durability is particularly high. Excellent scratch resistance. Furthermore, by printing a pattern or embossing the surface insulation sheet, it is possible to enhance the aesthetic appearance and improve the interior comfort. The decorative sheet of the present invention can be used not only as wallpaper for clean rooms, but also as wallpaper for clean rooms.
It can also be used as a packaging material for ICs, etc.
第１図は、本発明の化粧シートの基本的な構成を示す、
模式的な断面図でおる。
第２図は、本発明の化粧シートの好ましい態様の構成を
示す、第１図と同様な断面図である。
１・・・絶縁シート
１Ａ、１Ｂ・・・ポリ塩化ビニル
１１・・・絵柄印刷層
２．４・・・導体層
３・・・絶縁体層 ５・・・基材シート６・
・・粘着剤 ７・・・離型紙特許出願人
大日本印刷株式会社
代理人 弁理士 須 賀 総 夫
第１図
第２図FIG. 1 shows the basic structure of the decorative sheet of the present invention.
This is a schematic cross-sectional view. FIG. 2 is a sectional view similar to FIG. 1, showing the configuration of a preferred embodiment of the decorative sheet of the present invention. 1... Insulating sheets 1A, 1B... Polyvinyl chloride 11... Pattern printing layer 2.4... Conductor layer 3... Insulator layer 5... Base sheet 6.
... Adhesive 7 ... Release paper patent applicant
Dai Nippon Printing Co., Ltd. Representative Patent Attorney Souo Suga Figure 1 Figure 2
Claims (4)
ートを順に積層してなる帯電防止化粧シート。(1) An antistatic decorative sheet formed by sequentially laminating a conductor layer and an insulating sheet on an insulating base sheet.
導体層および絶縁シートをこの順で積層してなる帯電防
止化粧シート。(2) On the insulating base sheet, a conductor layer, an insulator layer,
An antistatic decorative sheet made by laminating a conductor layer and an insulating sheet in this order.
した半硬質または軟質のポリ塩化ビニルを、絶縁体層と
くにポリエステルを、基材シートとして坪量４０〜９０
ｇ／ｍ＾２の紙または半硬質ポリ塩化ビニルを使用し、
導体層をアルミ蒸着によって形成した請求項１または２
に記載の帯電防止化粧シート。(3) Semi-rigid or soft polyvinyl chloride with a pattern printed or embossed as the insulating sheet, an insulating layer, especially polyester, and a basis weight of 40 to 90 as the base sheet.
g/m^2 paper or semi-rigid PVC,
Claim 1 or 2, wherein the conductor layer is formed by aluminum vapor deposition.
The antistatic decorative sheet described in .
１ないし３のいずれかに記載の帯電防止化粧シート。(4) The antistatic decorative sheet according to any one of claims 1 to 3, wherein an adhesive is applied to the back surface of the base sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63093886A JP2720451B2 (en) | 1988-04-15 | 1988-04-15 | Antistatic makeup sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63093886A JP2720451B2 (en) | 1988-04-15 | 1988-04-15 | Antistatic makeup sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01263356A true JPH01263356A (en) | 1989-10-19 |
| JP2720451B2 JP2720451B2 (en) | 1998-03-04 |
Family
ID=14094962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63093886A Expired - Fee Related JP2720451B2 (en) | 1988-04-15 | 1988-04-15 | Antistatic makeup sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2720451B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0723710A1 (en) * | 1993-08-20 | 1996-07-31 | Berg Technology, Inc. | Electrical connection assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6195521U (en) * | 1984-11-29 | 1986-06-19 | ||
| JPS6472843A (en) * | 1987-09-14 | 1989-03-17 | Kanto Leather | Preparation of conductive sheet like article |
-
1988
- 1988-04-15 JP JP63093886A patent/JP2720451B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6195521U (en) * | 1984-11-29 | 1986-06-19 | ||
| JPS6472843A (en) * | 1987-09-14 | 1989-03-17 | Kanto Leather | Preparation of conductive sheet like article |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0723710A1 (en) * | 1993-08-20 | 1996-07-31 | Berg Technology, Inc. | Electrical connection assembly |
| EP0723710A4 (en) * | 1993-08-20 | 1997-07-09 | Berg Tech Inc | Electrical connection assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2720451B2 (en) | 1998-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |