JPH01156052A - Composite sheet - Google Patents
Composite sheetInfo
- Publication number
- JPH01156052A JPH01156052A JP31648587A JP31648587A JPH01156052A JP H01156052 A JPH01156052 A JP H01156052A JP 31648587 A JP31648587 A JP 31648587A JP 31648587 A JP31648587 A JP 31648587A JP H01156052 A JPH01156052 A JP H01156052A
- Authority
- JP
- Japan
- Prior art keywords
- porous
- sheet
- sheets
- ptfe
- laminated
- 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 abstract description 15
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 22
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 239000000806 elastomer Substances 0.000 claims abstract description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 11
- 239000011148 porous material Substances 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- GRPIQKZLNSCFTB-UHFFFAOYSA-N n-[bis(dimethylamino)-fluoroimino-$l^{5}-phosphanyl]-n-methylmethanamine Chemical compound CN(C)P(=NF)(N(C)C)N(C)C GRPIQKZLNSCFTB-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はポリテトラフルオロエチレン（以下。[Detailed description of the invention] (Industrial application field) The present invention relates to polytetrafluoroethylene (hereinafter referred to as polytetrafluoroethylene).
ＰＴＦＥと称す）多孔質シートラ主材とする覆合シート
に関する。The present invention relates to a covering sheet mainly made of porous sheet material (referred to as PTFE).
（従来の技術）
半導体製造等の各徨薬品を使用する作業に従事する際の
着衣には、（ａ）風合が艮いこと、（ｂ）軽量であるこ
と、（Ｃ）洗濯に耐えること（耐洗油性）、 （ｄ）耐
薬品性（薬品に侵されないことおよび薬品が浸透しない
こと）を有することが要求される。(Prior art) Clothes used when engaging in work that uses harmful chemicals, such as semiconductor manufacturing, must (a) have a pleasant texture, (b) be lightweight, and (C) withstand washing. (resistance to cleaning oil); (d) chemical resistance (not being attacked by chemicals and not penetrating by chemicals).
従来、かかる着衣（作業服、保ａ看、前掛は等）として
はエチレン−テトラフルオロエチレン共重合体（以下、
ＥＴＦＥと称す）やテトラフルオロエチレン−ヘキサ
フルオロプロピレン共重合体から成るシート（非多孔質
）の片面を接着処理し、この処理面上に基匝を積層した
複合シートをｔａｓｔ。Conventionally, such clothing (work clothes, bodyguards, aprons, etc.) has been made of ethylene-tetrafluoroethylene copolymer (hereinafter referred to as
One side of a sheet (non-porous) made of ETFE (referred to as ETFE) or tetrafluoroethylene-hexafluoropropylene copolymer is treated with adhesive, and a base plate is laminated on this treated side to make a composite sheet.
たものが知られていた。things were known.
（発明が解決しようとする問題点）
この従来品はフッ素樹脂シートを用いているので、（ｄ
）の耐薬品性は満足し得るものの、（ａ） 、 （ｂ）
および（ｅ）については、その改善が望まｎていた。(Problems to be solved by the invention) Since this conventional product uses a fluororesin sheet, (d
Although the chemical resistance of ) is satisfactory, (a) and (b)
Regarding (e), improvements were desired.
（問題点を解決するための手段） 本発明者は従来品の有する問題を解決すべく。(Means for solving problems) The present inventor aimed to solve the problems of conventional products.
鋭意検討の結果、 ＰＴＦＥ多孔質シートを生材として
用い、該シート２枚を特定の材料を介して積ｊ−せしめ
ると共に、多孔質シートの一方に補強布を積層せしめる
ことにより、所期の目的を達成できること金知り１本発
明を完成するに至った。As a result of extensive research, we found that by using a porous PTFE sheet as raw material, stacking two sheets together with a specific material in between, and laminating a reinforcing cloth on one side of the porous sheet, we were able to achieve the desired purpose. We have now completed the present invention, which is an important achievement.
即ち１本発明に係る複合シートは、４１のＰ Ｔ’ＦＥ
多孔質シートの片面に、フッ素系ニジストマー層を介し
て第２のＰＴＦＥ多孔質シートが積層されると共に、前
記ｆＩｓｌのＰＴＦＥ多孔寅シートの他面に補強布が積
層されて成るものである。That is, the composite sheet according to the present invention has 41 P T'FE
A second PTFE porous sheet is laminated on one side of the porous sheet via a fluorine-containing nistomer layer, and a reinforcing cloth is laminated on the other side of the fIsl PTFE porous sheet.
以下１図面ｔ−Ｓ照しながら本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings t-S.
図面において、１ｔｌ！＄１のＰＴＦＥ多孔質シート、
２は第２のＰＴＦＥ多孔質シートである。このＰＴＦＥ
多孔質シートは特公昭４２−１３５６０号公報、特公昭
５１−１８９９１号公報、特公昭５８−２５３３２号公
報等に記載された延伸法、或いは発泡法等により得るこ
とができ、その厚さ、気孔率および孔径は１通常、約ｌ
θ〜２００μ惟、４０〜９５％および０．１〜３０μｍ
である。In the drawing, 1tl! $1 PTFE porous sheet,
2 is a second PTFE porous sheet. This PTFE
The porous sheet can be obtained by the stretching method or the foaming method described in Japanese Patent Publication No. 42-13560, Japanese Patent Publication No. 51-18991, Japanese Patent Publication No. 58-25332, etc., and its thickness, pores, etc. The ratio and pore size are usually about 1
θ~200μm, 40~95% and 0.1~30μm
It is.
そして、これら肉条孔質シート１および２は。And these striated porous sheets 1 and 2.
厚さが通常約５〜３０μ溝のフッ素系エンストマーＩｍ
Ｊを介して槓ｊ−一体化されている。このニジストマー
膚は薄ノ謔状態で肉条孔質シートを積層せしめるための
充分な接着機能を発揮すると共に、該シートの外部から
薬品等の異Ｏが浸透した場合。Fluorine entomer Im with a groove thickness of usually about 5 to 30μ
J is integrated through J. This nystomeric skin exhibits a sufficient adhesive function to laminate the striated porous sheets in a thin state, and can also be used to prevent foreign substances such as chemicals from penetrating from the outside of the sheets.
異物のそれ以上の浸透を阻止するバリヤーＪ−としても
機能し、更に、複合シートに柔らかな風合をもたらす。It also functions as a barrier to prevent further penetration of foreign substances, and also provides a soft feel to the composite sheet.
上記フッ素系ニジストマーの具体例としては。Specific examples of the above-mentioned fluorine-based distomers include:
フッ化ビニリデン系、フルオロシリコーン系、テトラフ
ルオロエチレン−プロピレン系、テトラフルオロエチレ
ン−パーフルオロビニルエーテル系。Vinylidene fluoride type, fluorosilicone type, tetrafluoroethylene-propylene type, tetrafluoroethylene-perfluorovinyl ether type.
フルオロフォスフアゼン系のエラストマーヲ挙ケること
ができ、これらは−液性、２液性、溶剤タイプ、エマル
ジョンタイプ等いずれであってもよい。Fluorophosphazene-based elastomers can be mentioned, and these may be of any type such as -liquid type, two-liquid type, solvent type, emulsion type, etc.
４は第１のＰＴＦＥ多孔質シート１の片面に接着剤ｌ１
ｌ１５により積層された補強布であり、ａ布、−布、不
繊布等の布状体から成る。多孔質シート１と補強布４と
の積層ヲ接着により行なう場合は。4 is an adhesive l1 on one side of the first PTFE porous sheet 1.
It is a reinforcing cloth laminated with 115 layers, and is made of cloth-like materials such as a-cloth, -cloth, and non-woven fabric. When the porous sheet 1 and the reinforcing cloth 4 are laminated by adhesion.
ａｔ化、風合の点から接着剤を点状、ｙｆｈ状、４Ｉｉ
目状等に配置し１両者を部分接着せしめるのが好ましい
が、全面接着とすることもできる。At, from the viewpoint of texture, adhesive is dotted, yfh, 4Ii
It is preferable to arrange them in a mesh pattern and partially adhere them together, but it is also possible to adhere them over the entire surface.
なお１本発明においては、ＰＴＦＥ多孔質シート或いは
補強布の少なくとも一方に導電性付与品を用いることも
できる。In addition, in the present invention, an electrically conductive product may be used for at least one of the porous PTFE sheet and the reinforcing cloth.
（実施例） 以下、実施例により本発明を更に詳細に説明する。(Example) Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例
ポリエステル製導電性噛布とＰＴＦＥ多孔質シート（厚
さ２５μ愼、気孔率８５％、平均孔径０．６μ惧）をゴ
ム系感圧性接着剤により点状に部分接着する。EXAMPLE A conductive cloth made of polyester and a porous PTFE sheet (thickness: 25 μm, porosity: 85%, average pore diameter: 0.6 μm) are partially adhered in dots using a rubber pressure-sensitive adhesive.
なお、接着に際しては２ Ｋ９／ｅ４の圧力を作用せし
めた。また、接着密度は３２ポイント／インチ。Note that a pressure of 2 K9/e4 was applied during adhesion. Also, the adhesive density is 32 points/inch.
接着面積は３５％、接着剤Ｊｍの厚さは２０．ｃｊｓで
ある。The adhesive area is 35%, and the thickness of adhesive Jm is 20. It is cjs.
次に、前記ＰＴＦＥ多孔質シートの表面にフッ化ビニリ
デン系エラストマー液（エマルションタイプ、２液性、
ダイキン工業社製、商品名ダイエルラテックス）を塗布
し、この塗布液上に上記と同じＰ Ｔ Ｆ Ｅ多孔質シ
ートを配置し、温度１５０℃、圧力３に９／−の条件で
２分間加熱加圧し、エラストマー１ｌＩｌｌの厚さが３
０μ漢である図面と同構造の複合シート（試料１）を得
た。Next, a vinylidene fluoride elastomer liquid (emulsion type, two-component,
Daikin Industries, Ltd., trade name: Daiel Latex) was applied, and the same PTF E porous sheet as above was placed on top of this coating solution, and heated for 2 minutes at a temperature of 150°C and a pressure of 3 to 9/-. Apply pressure until the thickness of 1lIll of elastomer is 3
A composite sheet (sample 1) having the same structure as the drawing with a 0μ scale was obtained.
一方、これとは別に、ニジストマー濃度カ２５重貢％お
よび１５重黛％となるように水で希釈して用いる以外は
上記と同様に作業し、２檀の複合シート（試料２および
３）を得た。Separately, two composite sheets (Samples 2 and 3) were prepared in the same manner as above, except that they were diluted with water to give a concentration of 25% and 15%. Obtained.
比較例
片面にコロナ放電処理を施した厚さ２５μ鴎のＥＴＦＥ
フィルムの該処理面に実施例１で用いたのと同じ導電性
繊布を実施例１と同条件で接着し。Comparative example ETFE with a thickness of 25 μm and which was subjected to corona discharge treatment on one side
The same conductive fabric used in Example 1 was adhered to the treated surface of the film under the same conditions as in Example 1.
複合シート（試料４）を得た。A composite sheet (sample 4) was obtained.
上記実施例および比較例によって得られた複合シートに
ついて、下記の方法による試験を行ない。The composite sheets obtained in the above Examples and Comparative Examples were tested by the following method.
得られた結果を第１表に示す。The results obtained are shown in Table 1.
複合シートのＰＴＦＥ多孔質フィルムもしくはＥＴＦＥ
フィルム面とに、硝酸（６５重重％）、フッ化水素酸（
４８重蓋％）およびＮａｏＨ水溶液（５０！量％） ｔ
−５ｃｃ滴下し、２４時間後に補強布側への浸透を目視
により判定する。第１表中のｒＯＪは補強布側への浸透
がなかったことを示している。Composite sheet of PTFE porous film or ETFE
Nitric acid (65% by weight), hydrofluoric acid (
48% by volume) and NaoH aqueous solution (50% by volume) t
-5cc was dropped, and after 24 hours, the penetration into the reinforcing fabric was visually determined. rOJ in Table 1 indicates that there was no penetration into the reinforcing fabric side.
複合シートを縦、横の寸法が各２０ｃｒＩＬになるよう
に切断し、この切断片２枚の一端ｇｔ−重ね合わせ。The composite sheet was cut so that the vertical and horizontal dimensions were each 20 crIL, and one end of the two cut pieces was stacked on top of each other.
該重合部を６０番手のポリエステル糸を用いてミシンに
より縫製加工する。The polymerized portion is sewn using a sewing machine using a 60-count polyester thread.
次いで、この縫製加工品を洗４機（日立社製。Next, this sewn product was washed in 4 machines (manufactured by Hitachi).
商品名青空ＰＦ２３５０型）により、洗い１２分。Product name: Aozora PF2350 model) washes in 12 minutes.
すすぎ１５分、脱水６分を１サイクルとして５０サイク
ル繰り返す。 ゛
その後、ＰＴＦＥ多孔質フィルムもしくはＥＴＦＥフィ
ルムの針孔貫通部において、針孔の拡大や針孔を端緒と
する亀裂の発生等の異常の有無を目視により判定する。Repeat 50 cycles with 15 minutes of rinsing and 6 minutes of dehydration as one cycle.゛Then, the presence or absence of abnormalities such as enlargement of the needle holes or the occurrence of cracks originating from the needle holes is visually determined in the needle hole penetrating portion of the porous PTFE film or the ETFE film.
第１表中の「○」および「×」は、「異常無し」および
「異常有り」を示している。"○" and "x" in Table 1 indicate "no abnormality" and "abnormality present".
複合シートの単位面積当りの重量を測定した、第 １
表
（発明の幼果）
本発明は上記のように構成されており、実施例および比
較例にも示されているように、風合、＠童、耐洗濯性お
よび耐薬品性を兼備する複合シートを提供できる特徴が
ある。First, the weight per unit area of the composite sheet was measured.
Table (young fruits of the invention) The present invention is constructed as described above, and as shown in the Examples and Comparative Examples, a composite material having good texture, good washing resistance, and chemical resistance. It has the feature of being able to provide sheets.
図面は本発明に係る複合シートの実例を示す正１図であ
る。The drawing is a first view showing an example of the composite sheet according to the present invention.
Claims (1)
に、フッ素系エラストマー層を介して第２のポリテトラ
フルオロエチレン多孔質シートが積層されると共に、前
記第１のポリテトラフルオロエチレン多孔質シートの他
面に補強布が積層されて成る複合シート。A second polytetrafluoroethylene porous sheet is laminated on one side of the first polytetrafluoroethylene porous sheet with a fluorine-based elastomer layer interposed therebetween. A composite sheet with reinforcing fabric laminated on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62316485A JP2507766B2 (en) | 1987-12-15 | 1987-12-15 | Composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62316485A JP2507766B2 (en) | 1987-12-15 | 1987-12-15 | Composite sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01156052A true JPH01156052A (en) | 1989-06-19 |
| JP2507766B2 JP2507766B2 (en) | 1996-06-19 |
Family
ID=18077613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62316485A Expired - Lifetime JP2507766B2 (en) | 1987-12-15 | 1987-12-15 | Composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507766B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5264276A (en) * | 1992-04-06 | 1993-11-23 | W. L. Gore & Associates, Inc. | Chemically protective laminate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56144954A (en) * | 1980-04-15 | 1981-11-11 | Sumitomo Electric Industries | Elastic structure |
| JPS59187845A (en) * | 1982-11-19 | 1984-10-25 | ダブリユ・エル・ゴア・アンド・アソシエイツ，インコ−ポレイテイド | Method of forming elastomer waterproof laminate |
| JPS61137739A (en) * | 1984-12-11 | 1986-06-25 | ジヤパンゴアテツクス株式会社 | Expansible film having permeable waterproof function |
| JPS6227485A (en) * | 1985-07-29 | 1987-02-05 | Nok Corp | Sealing material |
-
1987
- 1987-12-15 JP JP62316485A patent/JP2507766B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56144954A (en) * | 1980-04-15 | 1981-11-11 | Sumitomo Electric Industries | Elastic structure |
| JPS59187845A (en) * | 1982-11-19 | 1984-10-25 | ダブリユ・エル・ゴア・アンド・アソシエイツ，インコ−ポレイテイド | Method of forming elastomer waterproof laminate |
| JPS61137739A (en) * | 1984-12-11 | 1986-06-25 | ジヤパンゴアテツクス株式会社 | Expansible film having permeable waterproof function |
| JPS6227485A (en) * | 1985-07-29 | 1987-02-05 | Nok Corp | Sealing material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5264276A (en) * | 1992-04-06 | 1993-11-23 | W. L. Gore & Associates, Inc. | Chemically protective laminate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2507766B2 (en) | 1996-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3688000T2 (en) | Flexible composite laminates containing a fluoropolymer. | |
| US6254978B1 (en) | Ultra-thin integral composite membrane | |
| CN1180933C (en) | Improved nonwoven with non-symmetrical bonding configuration | |
| DE2647524C2 (en) | Composite material consisting of layers connected directly with interlocking, one of which consists of polytetrafluoroethylene and the other of vulcanized rubber-elastic material, and a method for producing the composite material | |
| JP5049519B2 (en) | Stretchable composite fabric and stretched porous polytetrafluoroethylene film | |
| EP0447447A1 (en) | Fabric reinforced composite membrane | |
| KR860000150A (en) | Soft Nonwoven Laminates and Manufacturing Method Thereof | |
| DE3201119A1 (en) | METHOD FOR PRODUCING A CATION PERMEABLE MEMBRANE WITH EMBEDDED REINFORCING TISSUE AND THE MEMBRANE OBTAINED THEREOF | |
| JP7328890B2 (en) | stretch laminate | |
| US20040198127A1 (en) | Non-woven fabric and, a laminate and braided material using the same | |
| JPH01156052A (en) | Composite sheet | |
| KR20050013157A (en) | Moisture-Permeable, Waterproof and Windproof Laminated Sheet, Interlining Using the Same, and Garment Containing the Interlining | |
| US20110008600A1 (en) | Chemical barrier lamination and method | |
| JPS617338A (en) | Ion exchange resin membrane | |
| EP0498348A1 (en) | A composite membrane that includes a separation membrane | |
| KR101894856B1 (en) | Wrinkle Structure for Membrane Electrode Assembly of Fuel Cell and Manufacturing Method Therefor | |
| TWI699471B (en) | Composite cloth | |
| JPH0446921Y2 (en) | ||
| TWM576533U (en) | Textiles | |
| JPH04226747A (en) | Warpage resistant sheet material | |
| TWI685424B (en) | Textile | |
| JP2625146B2 (en) | Method for producing sealing plug used for electrolytic capacitor and method for producing sheet for forming the sealing plug | |
| JPH06171031A (en) | Fluoroplastic laminate | |
| JPS63290735A (en) | Flexible laminated sheet | |
| JPS62249740A (en) | Antifouling laminated cloth and manufactur thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080416 Year of fee payment: 12 |