JPH02166183A - Self-adhesive tape - Google Patents
Self-adhesive tapeInfo
- Publication number
- JPH02166183A JPH02166183A JP32313488A JP32313488A JPH02166183A JP H02166183 A JPH02166183 A JP H02166183A JP 32313488 A JP32313488 A JP 32313488A JP 32313488 A JP32313488 A JP 32313488A JP H02166183 A JPH02166183 A JP H02166183A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- rubber latex
- base material
- water
- weight
- 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
- 239000002390 adhesive tape Substances 0.000 title claims description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 61
- 230000001070 adhesive effect Effects 0.000 claims abstract description 61
- 229920000126 latex Polymers 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 abstract description 10
- 238000001035 drying Methods 0.000 abstract description 5
- 239000004816 latex Substances 0.000 abstract description 4
- -1 acryl Chemical group 0.000 abstract description 3
- 229920006173 natural rubber latex Polymers 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 239000012939 laminating adhesive Substances 0.000 abstract 1
- 238000003475 lamination Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229920003067 (meth)acrylic acid ester copolymer Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical class C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
Abstract
Description
【発明の詳細な説明】 皮果よ東剋■分！ 本発明は自己接着テープに関する。[Detailed description of the invention] Peel fruit, eastward! The present invention relates to self-adhesive tapes.
ｌ米Ω肢歪
自己接着テープとは、他の材料とは接着せず、自己相互
のみが接着し得ると共に、重ね合わせ接着力は大きいが
、剥離接着力は小さい一種の粘着テープをいい、例えば
、包装結束テープ、包帯や止血テープ、写真等の仮止め
等に用いることができる。Self-adhesive tape with Ω-limb distortion refers to a type of adhesive tape that does not adhere to other materials, but only to itself, and has a high stacking adhesive force but a low peel adhesive force, such as It can be used for packaging binding tape, bandages, hemostatic tape, temporary fixing of photographs, etc.
一般に、ゴムラテックスは、粘着力を有するが、合成樹
脂や紙等の基材との接着力は十分でなく、他方、水溶性
接着剤は、乾燥後は粘着力をもたないが、基材との接着
力を有する。そこで、かかるゴムラテックスと水溶性接
着剤とを適当に組み合わせてなる接着剤組成物を基材に
塗布乾燥させることによって、上記したような自己接着
テープを得ることができる。In general, rubber latex has adhesive strength, but it does not have sufficient adhesive strength to base materials such as synthetic resins and paper.On the other hand, water-soluble adhesives do not have adhesive strength after drying, but they do not have sufficient adhesive strength to base materials such as synthetic resins and paper. It has adhesive strength with. Therefore, a self-adhesive tape as described above can be obtained by applying an adhesive composition formed by appropriately combining such rubber latex and a water-soluble adhesive onto a base material and drying it.
かかる自己接着テープは、既に知られており、慟えば、
特開昭６２−２６０７７号公報や特開昭６０−９２３６
１号公報には、基材の両面にゴムラテックスと水溶性接
着剤との混合物からなる粘着剤層を形成してなる自己接
着テープが記載されている。Such self-adhesive tapes are already known and may include
JP-A-62-26077 and JP-A-60-9236
Publication No. 1 describes a self-adhesive tape in which adhesive layers made of a mixture of rubber latex and a water-soluble adhesive are formed on both sides of a base material.
上述したように、自己接着テープは、剥離接着力が小さ
（、他方、重ね合わせ接着力及び基材との接着力が大き
いことが要求されるが、ゴムラテックスは剥離接着力及
び重ね合わせ接着力の向上に寄与し、水溶性接着剤は基
材との接着力の向上に寄与する。従って、ゴムラテック
スと水溶性接着剤の配合量を調整することによっては、
上記要求のすべてを同時に満たすことができない。例え
ば、ゴムラテックスの配合量を減らし、水溶性接着剤の
配合量を増やせば、剥離接着力を低減させることができ
るが、同時に重ね合わせ接着力と基材との接着力が低減
する０反対に、ゴムラテックスの配合量を増やし、水溶
性接着剤の配合量を減らせば、基材との接着力を高める
ことができるが、剥離接着力及び重ね合わせ接着力が低
減する。As mentioned above, self-adhesive tapes are required to have low peel adhesion (on the other hand, they are required to have high overlap adhesion and adhesion to the base material, but rubber latex has low peel adhesion and overlap adhesion). Water-soluble adhesives contribute to improving the adhesion to the base material. Therefore, by adjusting the blending amounts of rubber latex and water-soluble adhesives,
It is not possible to meet all of the above requirements at the same time. For example, by reducing the amount of rubber latex and increasing the amount of water-soluble adhesive, it is possible to reduce the peel adhesion, but at the same time the lamination adhesion and the adhesion to the base material are reduced. If the amount of rubber latex compounded is increased and the amount of water-soluble adhesive compounded is decreased, the adhesive force with the base material can be increased, but the peel adhesion force and lamination adhesion force are reduced.
従って、従来より知られている接着剤組成物を用いる自
己接着テープによれば、前記した要求に十分応えること
ができない。Therefore, self-adhesive tapes using conventionally known adhesive compositions cannot sufficiently meet the above requirements.
■が”しよ°とする採コ−
本発明は、上記した問題を解決するためになされたもの
であって、剥離接着力を一層低減すると共に、基材との
接着力を一層高めた自己接着テープを提供することを目
的とする。■ The present invention has been made to solve the above-mentioned problems, and is a self-adhesive film that further reduces the peel adhesion force and further increases the adhesive force with the base material. The purpose is to provide adhesive tape.
量 を ° るための土且
本発明による自己接着テープは、
（ａ） ゴムラテックス／水溶性接着剤の固形分重量
比が０．１〜０．６の範囲にあるゴムラテックスと水溶
性接着剤との水性混合物、及び
山） 上記ゴムラテックス固形分１００重量部に対して
１０〜１００重量部のエマルジョン型タッキファイヤ−
からなる粘着剤組成物を基材の片面又は両面に塗布乾燥
させてなることを特徴とする。The self-adhesive tape according to the present invention is composed of (a) rubber latex and water-soluble adhesive having a solid content weight ratio of rubber latex/water-soluble adhesive in the range of 0.1 to 0.6; A pressure-sensitive adhesive composition consisting of 10 to 100 parts by weight of an emulsion-type tackifier based on 100 parts by weight of the solid content of the rubber latex is coated on one or both sides of a base material and dried. It is characterized by
本発明において、上記ゴムラテックスとしては、例えば
、天然ゴムのほか、スチレン−ブタジェンゴム、ポリブ
タジェンゴム、ポリイソプレンゴム等のラテックスが好
ましく用いられる。In the present invention, as the rubber latex, for example, in addition to natural rubber, latexes such as styrene-butadiene rubber, polybutadiene rubber, and polyisoprene rubber are preferably used.
また、水溶性接着剤としては、ポリ酢酸ビニル、エチレ
ン−酢酸ビニル共重合体、エチレン−（メタ）アクリル
酸共重合体、エチレン−（メタ）アクリル酸−（メタ）
アクリル酸エステル共重合体、エチレン−酢酸ビニル−
（メタ）アクリル酸共重合体、エチレン−酢酸ビニル−
（メタ）アクリル酸−（メタ）アクリル酸エステル共重
合体等の水性エマルジョンが用いられる。特に、本発明
においては、１８０’剥離接着力がＬＯｇ／ａｍ以下で
あるものが好ましく用いられる。In addition, water-soluble adhesives include polyvinyl acetate, ethylene-vinyl acetate copolymer, ethylene-(meth)acrylic acid copolymer, ethylene-(meth)acrylic acid-(meth)
Acrylic ester copolymer, ethylene-vinyl acetate-
(meth)acrylic acid copolymer, ethylene-vinyl acetate-
An aqueous emulsion such as a (meth)acrylic acid-(meth)acrylic acid ester copolymer is used. In particular, in the present invention, those having a 180' peel adhesive strength of LOg/am or less are preferably used.
本発明において、ゴムラテックスと水溶性接着剤とは、
ゴムラテックス／水溶性接着剤の固形分重量比が０．１
〜０．６の範囲にあるように用いられる。固型分重量比
が０゜１よりも小さいときは、重ね合せ接着力が低すぎ
る。しかし、固型分重量比が０．６より大きいときは、
１８０°判離接着力が高くなりすぎる。In the present invention, rubber latex and water-soluble adhesive are:
Solid content weight ratio of rubber latex/water-soluble adhesive is 0.1
~0.6. When the solid content weight ratio is less than 0°1, the lamination adhesive strength is too low. However, when the solid content weight ratio is greater than 0.6,
180° separation adhesive strength becomes too high.
本発明において用いる接着剤組成物は、上記ゴムラテッ
クス固形分１００重量部に対して、１０〜１００重量％
のエマルジョン型タッキファイヤ−を含む、このエマル
ジョン型タッキファイヤ−としては、通常、知られてい
るものが用いられ、例えば、ロジン酸エステルや水添石
油樹脂のエマルジョンが好適に用いられる。ゴムラテッ
クス固形分１００重量部に対して、エマルジョン型タッ
キファイヤ−が１０重重量よりも少ないときは、接着力
が低すぎ、１００重量％よりも多いときは、剥離接着力
が高すぎる。The adhesive composition used in the present invention is 10 to 100 parts by weight based on 100 parts by weight of the solid content of the rubber latex.
As the emulsion type tackifier, known emulsion type tackifiers are generally used, and for example, emulsions of rosin acid esters and hydrogenated petroleum resins are preferably used. When the emulsion type tackifier is less than 10 parts by weight relative to 100 parts by weight of the solid content of the rubber latex, the adhesive strength is too low, and when it is more than 100% by weight, the peel adhesive strength is too high.
特に、本発明においては、エマルジョン型タッキファイ
ヤ−は、ゴムラテックスの剥離粘着力を高めるが、水溶
性接着剤に粘着力を与えないように、用いるゴムラテッ
クスのみと相溶性を有し、水溶性接着剤とは実質的に相
溶性をもたないものが好ましい。In particular, in the present invention, the emulsion type tackifier increases the peeling adhesive strength of the rubber latex, but is compatible only with the rubber latex used so as not to impart adhesive strength to the water-soluble adhesive. Preferably, the material is substantially incompatible with the adhesive.
本発明によれば、接着剤組成物の調製において、用いる
ゴムラテックスの量を低減し、水溶性接着剤の量を増加
させて、剥離接着力を特に低減させ、且つ、基材との接
着力を高めると共に、ゴムラテックスの量の低減に伴う
剥離接着力及び重ね合わせ接着力の低減をエマルジョン
型タッキファイヤ−の添加によって補うので、剥離接着
力と重ね合わせ接着力とをバランスよく調整することが
できる。従って、本発明の好ましい態様においては、重
ね合わせ接着力が１．０ｋｇ／ａｎ以上、剥離接着力が
５０ｇ／ａｍ以下、好ましくは４０ｇ／ａｍ以下であっ
て、且つ、基材の接着性にすぐれる自己接着テープを得
ることができる。According to the present invention, in the preparation of the adhesive composition, the amount of rubber latex used is reduced and the amount of water-soluble adhesive is increased to particularly reduce the peel adhesion and to improve the adhesion to the substrate. At the same time, the reduction in peel adhesion and lamination adhesion caused by the reduction in the amount of rubber latex is compensated for by the addition of an emulsion type tackifier, making it possible to adjust the peel adhesion and lamination adhesion in a well-balanced manner. can. Therefore, in a preferred embodiment of the present invention, the lamination adhesive strength is 1.0 kg/an or more, the peel adhesive strength is 50 g/am or less, preferably 40 g/am or less, and the adhesive strength of the base material is immediately You can obtain a self-adhesive tape that is
本発明による自己接着テープは、上述したような接着剤
組成物を基材の片面又は両面に塗布乾燥させることによ
って得ることができる。基材としては、従来、接着テー
プに用いられている基材を任意に用いることができ、従
って、例えば、紙、布、ポリプロピレンや塩化ビニル樹
脂等の合成樹脂からなる基材を挙げることができる。か
かる基材上の接着剤組成物の層は、厚みが５〜１５μｍ
であるのが好ましい。The self-adhesive tape according to the invention can be obtained by applying an adhesive composition as described above to one or both sides of a substrate and drying it. As the base material, any base material conventionally used for adhesive tapes can be used, and therefore, examples thereof include paper, cloth, and base materials made of synthetic resins such as polypropylene and vinyl chloride resin. . The layer of adhesive composition on such a substrate has a thickness of 5 to 15 μm.
It is preferable that
又里ｐ菱来
以上のように、本発明による自己接着テープは、ゴムラ
テックス及び水溶性接着剤と共に、エマルシコン型タッ
キファイヤ−を含む接着剤組成物を基材に塗布乾燥させ
でなり、剥離接着力が一層低く、且つ、基材との接着力
が一層高い。As described above, the self-adhesive tape according to the present invention is made by applying an adhesive composition containing an emulsion type tackifier to a base material together with rubber latex and a water-soluble adhesive and drying it to form a peelable adhesive. The force is lower and the adhesion to the substrate is higher.
実施■
以下に実施例を挙げて本発明を説明するが、本発明はこ
れら実施例により何ら限定されるものではない。Implementation (2) The present invention will be explained below with reference to Examples, but the present invention is not limited to these Examples in any way.
実施例
（接着剤組成物の調製）
第１表に示すように、ジアルキルコハク酸ナトリウムを
、５重量倍の水に溶解させた水溶液２０重量部を天然ゴ
ムラテックス（固形分６０！量％）に加え、次いで、こ
れに水溶性接着剤としてのアクリルラテックス（昭和高
分子■製ポリゾールＦ４１６、固形分４２２重量）とタ
ッキファイヤ−であるロジン酸エステル系ラテックス（
荒用化学工業■製スーパーエステルＥ７２０、固形分５
０重量％）とを加えて、接着剤組成物を調製した。Examples (Preparation of adhesive composition) As shown in Table 1, 20 parts by weight of an aqueous solution of sodium dialkyl succinate dissolved in 5 times the weight of water was added to natural rubber latex (solid content 60% by weight). In addition, acrylic latex as a water-soluble adhesive (Polysol F416 manufactured by Showa Kobunshi ■, solid content 422 weight) and rosin acid ester latex as a tackifier (
Super Ester E720 manufactured by Arayo Kagaku Kogyo ■, solid content 5
0% by weight) to prepare an adhesive composition.
（基材の製造）
平均重合度１３５０のポリ塩化ビニル１００重量部にフ
ェノール系酸化防止剤０．２重量部、バリウム−亜鉛−
スズ系複合液状安定剤２重量部、「メタプレンＰ５３０
Ｊ （三菱レーヨン■製平均分子量４５０万のアクリ
ル樹脂）１．５重量部、エポキシ化大豆油３重量部、ポ
リプロピレングリコールアジベート（平均分子１１２６
００）４６重量部を有する可塑剤の所定量を含有する塩
化ビニル樹脂組成物を混練し、厚さ０．１ｆｌのフィル
ムに成形し、これを基材とした。(Manufacture of base material) 100 parts by weight of polyvinyl chloride with an average degree of polymerization of 1350, 0.2 parts by weight of phenolic antioxidant, barium-zinc-
2 parts by weight of tin-based composite liquid stabilizer, "Metaprene P530"
1.5 parts by weight of J (acrylic resin manufactured by Mitsubishi Rayon ■ with an average molecular weight of 4.5 million), 3 parts by weight of epoxidized soybean oil, polypropylene glycol adibate (average molecular weight of 1126
00) A vinyl chloride resin composition containing a predetermined amount of a plasticizer having 46 parts by weight was kneaded and formed into a film having a thickness of 0.1 fl, which was used as a base material.
（自己接着テープの製造）
上記基材の両面に前記接着剤組成物を塗布し、乾燥させ
て、それぞれ厚み１０μｍの粘着剤層を形成し、これを
幅２０ｍのテープに加工した。(Manufacture of self-adhesive tape) The adhesive composition was applied to both sides of the base material and dried to form an adhesive layer with a thickness of 10 μm on each side, which was processed into a tape with a width of 20 m.
これらそれぞれの自己接着テープについて、２５ｎの重
ね合わせ長さにての重ね合わせ接着力及び１８０゛剥離
接着力を第１表に示す、また、テープを密着させて、８
０℃の空気雰囲気中で５時間放置した後、室温まで放冷
し、基材と接着剤組成物層との間で容易に剥離するかど
うかを調べた。For each of these self-adhesive tapes, the overlapping adhesive strength at an overlapping length of 25n and the 180° peeling adhesive strength are shown in Table 1.
After being left in an air atmosphere at 0°C for 5 hours, it was allowed to cool to room temperature, and it was examined whether the base material and the adhesive composition layer were easily peeled off.
結果を第１表に示す。The results are shown in Table 1.
尚、重ね合わせ接着力及び１８０°剥離接着力はＪＩＳ
Ｚ ０２３７の方法に従って測定した。In addition, the overlapping adhesive strength and 180° peeling adhesive strength are based on JIS
Measured according to the method of Z 0237.
Claims (1)
量比が０．１〜０．６の範囲にあるゴムラテックスと水
溶性接着剤との水性混合物、及 び （ｂ）上記ゴムラテックス固形分１００重量部に対して
１０〜１００重量部のエマルジョ ン型タッキファイヤー からなる粘着剤組成物を基材の片面又は両面に塗布乾燥
させてなることを特徴とする自己接着テープ。(1) (a) an aqueous mixture of rubber latex and a water-soluble adhesive in which the solid content weight ratio of rubber latex/water-soluble adhesive is in the range of 0.1 to 0.6; and (b) the above-mentioned rubber latex solid. 1. A self-adhesive tape comprising a pressure-sensitive adhesive composition comprising 10 to 100 parts by weight of an emulsion-type tackifier per 100 parts by weight, coated on one or both sides of a base material and dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32313488A JPH02166183A (en) | 1988-12-20 | 1988-12-20 | Self-adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32313488A JPH02166183A (en) | 1988-12-20 | 1988-12-20 | Self-adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02166183A true JPH02166183A (en) | 1990-06-26 |
Family
ID=18151463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32313488A Pending JPH02166183A (en) | 1988-12-20 | 1988-12-20 | Self-adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02166183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006275177A (en) * | 2005-03-29 | 2006-10-12 | Osaka Gas Co Ltd | Anticorrosive method of pipe connecting part |
-
1988
- 1988-12-20 JP JP32313488A patent/JPH02166183A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006275177A (en) * | 2005-03-29 | 2006-10-12 | Osaka Gas Co Ltd | Anticorrosive method of pipe connecting part |
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