JPH01500126A - Manufacturing method of battery separator using polyacrylic acid adhesive - Google Patents

Manufacturing method of battery separator using polyacrylic acid adhesive

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Publication number
JPH01500126A
JPH01500126A JP62501915A JP50191587A JPH01500126A JP H01500126 A JPH01500126 A JP H01500126A JP 62501915 A JP62501915 A JP 62501915A JP 50191587 A JP50191587 A JP 50191587A JP H01500126 A JPH01500126 A JP H01500126A
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polyacrylic acid
adhesive
solvent
separator
chain
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JP2510644B2 (en
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アダムソン，デービッド　ビクター
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デュラセル　インターナショナル　インコーポレーテッド
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/20—Fibres of continuous length in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

PCT No. PCT/US87/00409 Sec. 371 Date Nov. 19, 1987 Sec. 102(e) Date Nov. 19, 1987 PCT Filed Feb. 23, 1987 PCT Pub. No. WO87/05918 PCT Pub. Date Oct. 8, 1987.An adhesive system, particularly suitable for the production of laminated separators for alkaline-electrolyte electrochemical cells, comprises a blend of a branched long chain polyacrylic acid with a substantially linear short chain polyacrylic acid, in an organic or aqueous solvent.

Description

【発明の詳細な説明】 発明の名称 接　着　剤 本発明は接着剤に関し、具体的には吸収性材料又は多孔性材料を互いに又は他の 物質に積層又は接合するのに用いられる接着剤に関する。尚、接着剤はこれら用 途のものに限定するものではない。[Detailed description of the invention] name of invention glue The present invention relates to adhesives, and specifically to bonding absorbent or porous materials to each other or other adhesives. It relates to adhesives used for laminating or bonding materials. In addition, the adhesive is for these It is not limited to those on the way.

本発明の接着剤は、電気化学電池の吸収性材料又はバリヤ（Ｂａｒｒｉｅｒ）材 料と共に用いるのに特に適している。The adhesive of the present invention can be used as an absorbent or barrier material in electrochemical cells. Particularly suitable for use with materials.

電気化学電池、特にアルカリ電解質電池では、吸湿紙又は不織布をバリヤ材料と 組み合わせて用いられている。＠池の組立てを通じて、取扱い及び電池への供給 を容易にするため、これ等の材料は接着剤又は熱シール技術を用いて積層構造と することが屡々ある。In electrochemical cells, especially alkaline electrolyte cells, moisture-absorbing paper or non-woven fabrics are used as barrier materials. They are used in combination. @ Handling and supplying to batteries through assembly of ponds To facilitate this, these materials can be assembled into laminated structures using adhesives or heat sealing techniques. There are many things to do.

円筒形の電池の場合、特にアルカリ電解質電池は吸収性又はバリヤ材料をスパイ ラル状に巻いてチューブ状に形成し、接着剤を塗布して形状を保持し、スパイラ ルの重なり部を固定することがよく行なわれる。For cylindrical batteries, especially alkaline electrolyte batteries, absorbent or barrier materials may be spiked. Roll it into a tube shape, apply adhesive to hold the shape, and create a spiral. It is common practice to fix the overlapping parts of the cables.

接着剤又は熱シールを用いると、通常は吸収性又はバリヤ材料の孔（ｐｏｒｅｓ ）を塞いでしまう、このため、電気抵抗が大きくなり、更には当該材料の電解質 吸収能力や濡れ（ｗｅｕｉｎｇ）’ｔＩ性が低下することにもなる。Adhesives or heat seals typically seal the pores of the absorbent or barrier material. ), which increases the electrical resistance and further increases the electrolyte of the material. Absorption capacity and wetting properties will also be reduced.

その結果、電池装置の性能は損なわれる。As a result, the performance of the battery device is impaired.

アルカリ性の電気化学系と適合性があって、吸収材料又はバリヤ材料の孔を塞ぐ という不都合を生じない接着剤を用いようとする試みがなされている。この接着 剤は長鎖ポリアクリル酸をベースにしたゲル剤を用いている。しかし乍ら、これ 等の接着剤は、実用上重大な不都合があった。即ち、粘度が非常に高いため流れ 特性が悪く、この接着剤を用いるには特別なコーティング又はラミネーション機 械を用いる必要があり、接着剤を保存タンクから接着剤コーティングヘッドに移 動するにも特別な装置を必要とする。粘度が高くて流れ特性が悪いため、これ等 接着剤の塗布速度は遅く、ラミネーション作業における処理量は少ない、このた め、固定費が高くなって、電池完成品のコストは著しく高くなってしまう。Compatible with alkaline electrochemical systems and plugs pores in absorbent or barrier materials Attempts have been made to use adhesives that do not cause these inconveniences. This adhesive The agent used is a gel agent based on long-chain polyacrylic acid. However, this These adhesives had serious practical disadvantages. In other words, the viscosity is so high that the flow Due to its poor properties, special coating or lamination machines are required to use this adhesive. A machine must be used to transfer the adhesive from the storage tank to the adhesive coating head. It requires special equipment to operate. Due to their high viscosity and poor flow characteristics, these Adhesive application speeds are slow and throughput in lamination operations is low; Therefore, fixed costs are high, and the cost of the finished battery product becomes significantly high.

本発明の目的は、粘度の低い接着剤系を提供することにあり、該接着剤は、アル カリ電解質環境の中で用いられる吸収材料又は多孔性材料に適用しても孔が塞が れることはない。An object of the present invention is to provide an adhesive system with low viscosity, which adhesive When applied to absorbent or porous materials used in potash electrolyte environments, the pores will not be blocked. It won't happen.

接着剤系の素晴らしい特性は、長鎖ポリアクリル酸と短鎖ポリアクリル酸をブレ ンドすることによって得られることを見出だしたのである。The great properties of the adhesive system are the combination of long-chain polyacrylic acid and short-chain polyacrylic acid. He discovered that what can be gained by doing this.

本発明は、粘度が比較的低く、簡単な装置を用いて塗布することが出来、処理量 が大きな接着剤を提供することができる０本発明の接着剤は従来のラミネーショ ン接着剤や熱接合技術のものよりも電気化学特性に優れており、電池の吸収剤及 びセパレータ要素の吸収能力又は濡れ特性を損なわないどころか、ラミネート構 造のアルカリ電解質電池のセパレータの濡れ特性を向上させることすら出来る。The present invention has a relatively low viscosity, can be applied using simple equipment, and has a high throughput. The adhesive of the present invention can provide a large adhesive It has superior electrochemical properties to adhesives and thermal bonding technologies, and is suitable for use as absorbents and batteries in batteries. Far from impairing the absorption capacity or wetting properties of the separator elements, the laminate structure It is even possible to improve the wetting properties of separators in synthetic alkaline electrolyte batteries.

長鎖ポリアクリル酸と短鎖ポリアクリル酸を組み合わせることによって、低粘度 で素晴らしいゲル特性を備えた接着剤が形成される。長鎖ポリアクリル酸は枝分 かれした鎖、即ち側鎖（ｂｒａｎｃｈｅｄ　ｃｈａｉｎｓ）を含むのが望ましく 、一方短鎖ポリアクリル酸は殆んど直線状の鎖、即ち直［（ｌｉｎｅａｒ　ｃｈ ａｉｎｓ）であるか又は掻く僅かの側鎖を含むのが望ましい、枝分かれした長鎖 ポリアクリル酸は、水溶液又はアルカリ溶液中で素晴らしいゲル特性及び接着特 性を示すが、粘度は高い、短鎖ポリアクリル酸の中のより小さな略直線状の分子 は、長鎖分子の間に存在し、分子性潤滑剤として作用して、これ等相互間の干渉 を小さくする。その結果、混合物の粘度は著しく小さくなり、しかも長鎖ポリア クリル酸のゲル特性及び接着特性を損なうことがない。Low viscosity achieved by combining long chain polyacrylic acid and short chain polyacrylic acid An adhesive with excellent gel properties is formed. Long chain polyacrylic acid is branched It is desirable to include branched chains, i.e. branched chains. , while short-chain polyacrylic acid has almost linear chains, i.e., straight [(linear ch ains) or preferably contain a few side chains. Polyacrylic acid has excellent gel and adhesive properties in aqueous or alkaline solutions. Smaller, nearly linear molecules in short-chain polyacrylic acids that exhibit high viscosity but have a high viscosity. exists between long-chain molecules and acts as a molecular lubricant, preventing interference between these molecules. Make smaller. As a result, the viscosity of the mixture is significantly reduced, and the long-chain polycarbonate The gel and adhesive properties of acrylic acid are not impaired.

長鎖ポリアクリル酸の代表的な分子量（ｍｏｌｅｃｕｌａｒｗｅｉｇｈｔ）は１ ，２５０，０００乃至５．０００．０００の範囲内であり、約３，０００．Ｇｏ ｏが望ましい０分子量が低くなるとゲル特性及び接着特性に不都合が生じ、分子 量が高くなると適当な溶液を形成しにくくなる。The typical molecular weight of long chain polyacrylic acid is 1 , 250,000 to 5.000.000, approximately 3,000.000. Go o is desirable. If the molecular weight is low, gel properties and adhesion properties will be disadvantageous, and the molecular weight will decrease. Higher amounts make it difficult to form a suitable solution.

短鎖ポリアクリル酸の分子量は例えば２．Ｇｏｏ乃至５００゜０００の範囲内で あり、約２５０．０００が望ましい、ポリアクリル酸は、分子量が大きくても小 さくても、全体の粘度を大きく低下させることはない。The molecular weight of short chain polyacrylic acid is, for example, 2. Within the range of Goo to 500°000 Polyacrylic acid has a molecular weight of about 250,000 and is preferably about 250,000. Even if it is reduced, the overall viscosity will not be significantly reduced.

本発明の使用に適した長鎖ポリアクリル酸として、ｒｃａｒｂｏｐｏｌ」（商標 名）の範囲にあるもの、特にＣａｒｂｏｐｏ１９４１より上にあるものが含まれ る。　Ｃａｒｂｏｐｏｌ　９３４が特に適していることを見出した。As a long chain polyacrylic acid suitable for use in the present invention, ``rcarbopol'' (trademark) ), especially those above Carbopo1941. Ru. We have found that Carbopol 934 is particularly suitable.

本発明の接着剤の要素は水性溶剤、又はメタノール、エタノール等の適当な極性 有機溶剤の中で分散させられる０通常は、有機溶剤を用いることが望ましく、そ れはアルカリ電気化学電池に使用される吸収材料及びバリヤ材料に対してより優 れた適合性を備えるからである。これ等は完全にゲル化した分散物を形成し、セ ルロース材料を直ちに濡らすことはなく、水を用いたときと同じように膨張させ る。The adhesive component of the present invention may be an aqueous solvent or a suitable polar solvent such as methanol or ethanol. It is usually preferable to use an organic solvent; It is superior to the absorption and barrier materials used in alkaline electrochemical cells. This is because it has a certain degree of compatibility. These form a completely gelled dispersion and Do not wet the ululose material immediately, but allow it to swell in the same way as with water. Ru.

接着剤ブレンドは、［分散物（ｄｉｓｐｅｒｓｉｏｎ）」として説明されるが、 これは長鎖ポリアクリル酸と短鎖ポリアクリル酸の量の比率を変えることにより 、及び／又は、分子量を変えることにより、粘度及び流れ特性を相当程度まで変 えることが出来る。これによって接着剤塗布に用いられる塗布技術に適合させる ことが出来る。Adhesive blends are described as "dispersions," but This can be achieved by changing the ratio of long-chain polyacrylic acid to short-chain polyacrylic acid. , and/or alter the viscosity and flow properties to a significant extent by changing the molecular weight. I can get it. This makes it compatible with the application technique used for adhesive application. I can do it.

代表的なラミネーションシステムはマイヤーバー（Ｍｅｙｅｒ　Ｂａｒ）のアプ リケーションヘッドを備え、積層材料を濡れ状態のままでニップし、その後、例 えば強制空気を用いて乾燥させる。溶剤を用いればより低い温度で乾燥させるこ とが出来る。これはある種の電池セパレータ装置の場合、セパレータ材料の損傷 を避けるために重要となる場合がある。A typical lamination system is Meyer Bar's app. nip the laminated material while still wet, and then For example, use forced air to dry. If you use a solvent, you can dry at a lower temperature. I can do that. For some types of battery separator devices, this can lead to damage to the separator material. This may be important to avoid.

次に、円筒形のアルカリマンガン電池の使用に適したラミネート構造のセパレー タを製造する場合について説明する。Next, a separator with a laminated structure suitable for use with cylindrical alkaline manganese batteries is introduced. We will explain the case of manufacturing the data.

セパレータは不織のシート材料、具体的には不織ナイロンを、バッテリーグレー ドに再生した高純度のセルロースフィルムに積層させる。The separator is made of non-woven sheet material, specifically non-woven nylon, battery gray. Laminated on highly purified cellulose film that has been recycled.

このような積層物は、２つのラミネート材料を互いに接合して形成することがで き、その接合には、多種多様の接着剤系を用いることが出来る。これには、水ベ ースのアクリル樹脂、アクリル共重合体、ＰＶＡ、珪酸ナトリウムベースの接着 剤、熱接合接着剤を含んでいる。Such laminates can be formed by bonding two laminate materials together. A wide variety of adhesive systems can be used for the bonding. This includes - based acrylic resin, acrylic copolymer, PVA, sodium silicate based adhesive Contains adhesives and thermal bonding adhesives.

これ等接着剤を用いて作られた積層体は濡れイオン抵抗、濡れ特性及び層剥離性 に関して優れている。これ等接着剤は全て、接着強度が弱いが、又はセパレータ の濡れイオン抵抗が非常に大きくなるために不適当であることが判った。Laminates made using these adhesives have excellent wet ionic resistance, wetting properties, and delamination properties. Excellent regarding. All of these adhesives have weak adhesive strength, or It was found that this is unsuitable because the wet ionic resistance becomes very large.

メタノール中にＣａｒｂｏｐｏｌ　９３４　（分子量が約３００万の長い枝分か れした鎖のポリアクリル酸）を分散させた接着剤は、全ての電気化学特性及び濡 れ特性に関して優れており、そのようなセパレータ系に使用するのに好適である ことが判った。しかし、これは粘度が非常に高いため、実際的に使用する上で容 易ではない。Carbopol 934 (long branch with a molecular weight of about 3 million) was added in methanol. Adhesives with dispersed polyacrylic acid (stranded chain polyacrylic acid) have all the electrochemical and wettability properties. It has excellent separation properties and is suitable for use in such separator systems. It turned out that. However, this has a very high viscosity, making it difficult to use in practical terms. It's not easy.

Ｃａｒｂｏｐｏｌの分散物に比較的低分子量（約２５０．０００が望ましい）の ポリアクリル酸を添加することによって、低分子量のポリアクリル酸を添加せず にＣａｒｂｏｐｏ！　９３４を用いて形成したセパレータと比べ、電気化学特性 及び濡れ特性を全く損なうことなく粘度が予期しなかった程度まで低下し、その 結果、流れ特性が著しく改善された。粘度が小さくなり、流れ特性が向上したこ とによって、長鎖ポリアクリル酸と短鎖ポリアクリル酸を含んだ接着剤は、比較 的処理量の大きい従来のコーティング技術及びラミネーション技術を用いて、ラ ミネーション構造の電池セパレータを製造するのに用いることが出来る。The Carbopol dispersion contains a relatively low molecular weight (preferably about 250,000) By adding polyacrylic acid, it is possible to avoid adding low molecular weight polyacrylic acid. Carbopo! Compared to the separator formed using 934, the electrochemical properties and the viscosity decreases to an unexpected degree without any loss of wetting properties. As a result, the flow characteristics were significantly improved. The viscosity is reduced and the flow characteristics are improved. Adhesives containing long-chain polyacrylic acid and short-chain polyacrylic acid were compared by Using traditional coating and lamination techniques with high throughput, It can be used to manufacture a battery separator with a termination structure.

流れ特性の向上結果は次の表によって明らかである。The improved flow properties results are evident from the following table.

表 Ｂ型（Ｂｒｏｏｋｆ　１ｅｌｄ）粘度 （２０ｒｐ（２０℃ζこて測定） メタノール中５％Ｃａｒｂｏｐｏｌ　９３４　１１，２００メタノール中５％Ｃ ａｒｂｏｐｏｌ　９３４．　５，９００２％ポリアクリル酸（Ｐ＾＾） ５％　Ｃａｒｂｏｐｏｌ　９３４．　４％　ＰＡ＾　４，２００５％Ｃａｒｂｏ ｐｏｌ　９３４．６％Ｐ＾＾　３，８００別のＣａｒｂｏｐｏｌの鎖が長く枝分 かれしたポリアクリル酸を、別の短い線状ポリアクリル酸と共に用いて結果を比 較した。比率は、５パーツのＣａｒｂｏｐｏｌ　９３４に対して６バーツＦＡＡ まででテストした。この値では接着強度に僅かの低下が認められた。table B type (Brookf 1eld) viscosity (20rp (20℃zeta trowel measurement) 5% Carbopol 934 11,200 5% C in methanol arbopol　934. 5,9002% polyacrylic acid (P^^) 5% Carbopol 934. 4% PA^ 4,2005% Carbo pol　934.6%P^^　3,800 Another Carbopol chain is long and branched Compare the results using the dried polyacrylic acid with another short linear polyacrylic acid. compared. The ratio is 6 baht FAA for 5 parts Carbopol 934 I tested it up to. At this value, a slight decrease in adhesive strength was observed.

国際調査報告international search report

Claims (9)

【特許請求の範囲】[Claims] （１）高い分子量のポリアクリル酸を少なくとも１種と、低い分子量のポリアク リル酸を少なくとも１種からなるブレンドを溶剤の中に含んでいる接着剤。(1) At least one type of high molecular weight polyacrylic acid and a low molecular weight polyacrylic acid An adhesive comprising a blend of at least one lylic acid in a solvent. （２）溶剤は有機溶剤である請求の範囲第１項に記載の接着剤。(2) The adhesive according to claim 1, wherein the solvent is an organic solvent. （３）溶剤はメタノール又はエタノールである請求の範囲第２項に記載の接着剤 。(3) The adhesive according to claim 2, wherein the solvent is methanol or ethanol. . （４）溶剤は水性溶剤である請求の範囲第１項に記載の接着剤。(4) The adhesive according to claim 1, wherein the solvent is an aqueous solvent. （５）長鎖ポリアクリル酸は側鎖を含み、短鎖ポリアクリル酸は略直線状の鎖を 含んでいる請求の範囲第１項に記載の接着剤。(5) Long-chain polyacrylic acid contains side chains, and short-chain polyacrylic acid contains approximately linear chains. An adhesive according to claim 1, comprising: （６）吸収性の不織シート材料はバリヤ材料に重わられ、請求の範囲第１項に規 定の接着剤を用いて結合している電池セパレータ。(6) The absorbent nonwoven sheet material overlies the barrier material and is defined in claim 1. Battery separators that are bonded using a specific adhesive. （７）請求の範囲第６項に規定のセパレータを内蔵したアルカリ電解質電池。(7) An alkaline electrolyte battery incorporating a separator as defined in claim 6. （８）請求の範囲第１項に規定の接着剤を用いて、スパイラル状に巻いて接着し てなる電気化学電池用セパレータ。(8) Wrap it in a spiral shape and adhere it using the adhesive specified in claim 1. Separator for electrochemical batteries. （９）請求の範囲第８項に規定のセパレータを内蔵しているアルカリ電解質電池 。(9) Alkaline electrolyte battery incorporating the separator specified in claim 8 .
JP62501915A 1986-03-27 1987-02-23 Manufacturing method of battery separator using polyacrylic acid adhesive Expired - Lifetime JP2510644B2 (en)

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GB8607793A GB2188326B (en) 1986-03-27 1986-03-27 Adhesive
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US5276075A (en) * 1991-10-30 1994-01-04 Binney & Smith Inc. Washable acrylic paint
US5389471A (en) * 1993-04-16 1995-02-14 W. R. Grace & Co.-Conn. Wettable battery separator for alkaline batteries
US5700600A (en) * 1996-01-12 1997-12-23 Danko; Thomas Long life battery separator
US5700599A (en) * 1996-01-12 1997-12-23 Danko; Thomas High absorption rate battery separator
US6432586B1 (en) 2000-04-10 2002-08-13 Celgard Inc. Separator for a high energy rechargeable lithium battery
US7087343B2 (en) * 2003-07-15 2006-08-08 Celgard, Inc. High melt integrity battery separator for lithium ion batteries
US20080178991A1 (en) * 2007-01-26 2008-07-31 Ronald Mah Method of making membrane electrode assemblies

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222419A (en) * 1962-07-05 1965-12-07 Nat Starch Chem Corp Pressure sensitive adhesive compositions
US3894889A (en) * 1970-08-03 1975-07-15 Gates Rubber Co Method of making separators for alkaline batteries
US4109066A (en) * 1976-12-14 1978-08-22 Compagnie Generale D'electricite Polyacrylic acid membranes for electrochemical use
US4477622A (en) * 1980-02-08 1984-10-16 Rohm And Haas Company Contact adhesives

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23644E (en) * 1945-03-14 1953-04-14 Battery separator
GB1491272A (en) * 1975-09-10 1977-11-09 Lingner & Fischer Gmbh Polymer adhesive compositions containing gelling agents
GB1587904A (en) * 1976-11-12 1981-04-15 Ici Ltd Surgical cement compositions
US4288355A (en) * 1978-05-22 1981-09-08 Minnesota Mining And Manufacturing Company Surgical cement composition
US4424291A (en) * 1980-12-11 1984-01-03 National Starch And Chemical Corporation Corrugating adhesive composition and paperboard product produced therewith
JPS58147956A (en) * 1982-02-26 1983-09-02 Kanai Hiroyuki Separator for alkaline battery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222419A (en) * 1962-07-05 1965-12-07 Nat Starch Chem Corp Pressure sensitive adhesive compositions
US3894889A (en) * 1970-08-03 1975-07-15 Gates Rubber Co Method of making separators for alkaline batteries
US4109066A (en) * 1976-12-14 1978-08-22 Compagnie Generale D'electricite Polyacrylic acid membranes for electrochemical use
US4477622A (en) * 1980-02-08 1984-10-16 Rohm And Haas Company Contact adhesives

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DE3750009T2 (en) 1994-09-22
CA1284540C (en) 1991-05-28
WO1987005918A1 (en) 1987-10-08
EP0262179A1 (en) 1988-04-06
US4902590A (en) 1990-02-20
EP0262179A4 (en) 1988-12-15
GB8607793D0 (en) 1986-04-30
AU7163487A (en) 1987-10-20
EP0262179B1 (en) 1994-06-08
MX169230B (en) 1993-06-25
AU606590B2 (en) 1991-02-14

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