JPH05105705A - Production of hygroscopic composite - Google Patents

Production of hygroscopic composite

Info

Publication number
JPH05105705A
JPH05105705A JP3269380A JP26938091A JPH05105705A JP H05105705 A JPH05105705 A JP H05105705A JP 3269380 A JP3269380 A JP 3269380A JP 26938091 A JP26938091 A JP 26938091A JP H05105705 A JPH05105705 A JP H05105705A
Authority
JP
Japan
Prior art keywords
monomer
hygroscopic
moisture absorption
salt
composite
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
Application number
JP3269380A
Other languages
Japanese (ja)
Other versions
JP3146030B2 (en
Inventor
Koji Miyake
浩司 三宅
Nobuyuki Harada
信幸 原田
Hiroya Kobayashi
博也 小林
Tadao Shimomura
忠生 下村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Shokubai Co Ltd
Original Assignee
Nippon Shokubai Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP26938091A priority Critical patent/JP3146030B2/en
Publication of JPH05105705A publication Critical patent/JPH05105705A/en
Application granted granted Critical
Publication of JP3146030B2 publication Critical patent/JP3146030B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To simply and inexpensively obtain the subject composite for drying agent, being free from liquid sag in moisture absorption, excellent in moisture absorption rate and amount by applying an aqueous solution containing a water soluble unsaturated monomer, a crosslinking agent and a deliquescent enorganic salt to a fibrous substrate and then polymerizing the monomer. CONSTITUTION:Hydroxyethylcellulose and sodium persulfate are added to an aqueous solution of monomer containing a water soluble unsaturated monomer (e.g. sodium acrylate), a crosslinking agent (e.g. ethylene glycol diacrylate) and a deliquescent inorganic salt (e.g. magnesium chloride) and the mixture is attached to a fibrous substrate such as polypropylene nonwoven fabric of 23g/m<2> basis weight so that the solid content becomes 34g/m<2> and. The monomer is polymerized by heating the fibrous substrate to 120 deg.C to simply and inexpensively produce the objective hygroscopic composite having 57g/m<2> basis weight, being free from liquid sag even in moisture absorption of moisture, capable of highly exhibiting hygroscopic property and having good handling property.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、吸湿性複合体の製法に
関する。
FIELD OF THE INVENTION The present invention relates to a method for producing a hygroscopic composite.

【0002】[0002]

【従来の技術】従来、吸湿性を有する物質として塩化カ
ルシウム、シリカゲル等の無機化合物が利用されてい
る。中でも塩化カルシウムは安価で吸湿能力が大きいた
めに広く使用されている。しかしながら、塩化カルシウ
ムは吸湿により液状化するため、こぼれたり他のものを
汚損したりして不都合なことが多かった。
2. Description of the Related Art Conventionally, inorganic compounds such as calcium chloride and silica gel have been used as hygroscopic substances. Among them, calcium chloride is widely used because it is inexpensive and has a large hygroscopic ability. However, since calcium chloride is liquefied by moisture absorption, it is often inconvenient because it spills or stains other things.

【0003】一方ではいわゆる吸水性樹脂に代表される
有機系の吸湿剤も提案されているが、このものはなる程
吸水性は高いものの低湿度雰囲気における吸湿性は満足
ゆくものではなく、例えば乾燥剤としては利用できなか
った。
On the other hand, organic hygroscopic agents represented by so-called water-absorbent resins have also been proposed, but the hygroscopicity is higher but the hygroscopicity in a low humidity atmosphere is not satisfactory. It could not be used as an agent.

【0004】更に最近では粉末状の吸水性樹脂や水溶性
樹脂と塩化カルシウム粉末を混合するといった方法も提
案されているが、前者は吸湿速度が遅く、後者は液ダレ
が起こるといった問題があった。
More recently, a method of mixing powdery water-absorbent resin or water-soluble resin with calcium chloride powder has been proposed, but the former has a problem that the moisture absorption rate is slow and the latter causes liquid dripping. ..

【0005】[0005]

【発明が解決しようとする課題】本発明は、上記問題点
を解決するものである。従って、本発明の目的は、液ダ
レがなく、吸湿特性に優れ、加工特性にも優れた吸湿性
複合体を容易に製造する方法を提供することにある。
SUMMARY OF THE INVENTION The present invention solves the above problems. Therefore, an object of the present invention is to provide a method for easily producing a hygroscopic composite having no liquid dripping, excellent hygroscopic property, and excellent processing property.

【0006】[0006]

【問題点を解決するための手段及び作用】本発明者ら
は、上記問題点を解決すべく鋭意検討を重ねた結果、水
溶性不飽和単量体、架橋剤および潮解性無機塩を含んで
なる水性液を繊維状基材に施した後、該単量体の重合を
行うことにより、上記目的にかなう新規な吸湿性複合体
を製造できることを見出し本発明に到達した。
[Means and Actions for Solving Problems] As a result of intensive studies to solve the above problems, the present inventors have found that a water-soluble unsaturated monomer, a crosslinking agent and a deliquescent inorganic salt are contained. The present inventors have found that a novel hygroscopic composite meeting the above purpose can be produced by subjecting the fibrous base material to an aqueous liquid and then polymerizing the monomer, and arrived at the present invention.

【0007】即ち本発明は、水溶性不飽和単量体、架橋
剤および潮解性無機塩を含んでなる水性液を繊維状基材
に施した後重合することを特徴とする吸湿性複合体の製
法である。
That is, the present invention relates to a hygroscopic composite characterized in that an aqueous liquid containing a water-soluble unsaturated monomer, a cross-linking agent and a deliquescent inorganic salt is applied to a fibrous substrate and then polymerized. It is a manufacturing method.

【0008】本発明で用いられる水溶性不飽和単量体と
しては、(メタ)アクリル酸、無水マレイン酸等のカル
ボキシル基を有する単量体;(メタ)アクリル酸ナトリ
ウム塩、(メタ)アクリル酸カリウム塩、(メタ)アク
リル酸アンモニウム塩、マレイン酸ナトリウム塩等の塩
の形のカルボキシル基を有する単量体;ビニルスルホン
酸、スチレンスルホン酸、(メタ)アクリル酸スルホプ
ロピル等のスルホン酸基を有する単量体;ビニルスルホ
ン酸ナトリウム塩、ビニルスルホン酸メチルアミン塩、
(メタ)アクリル酸スルホプロピルナトリウム塩等のス
ルホン酸塩を有する単量体;(メタ)アクリル酸ヒドロ
キシエチル、(メタ)アクリル酸ヒドロキシプロピル等
の水酸基を有する単量体;(メタ)アクリル酸エチレン
グリコ−ルモノメチルエ−テル、(メタ)アクリル酸ト
リオキシエチレングリコ−ル等のエ−テル基を有する単
量体;(メタ)アクリル酸ジメチルアミノエチル、(メ
タ)アクリル酸ジエチルアミノエチル等のアミノ基を有
する単量体;N,N’−ジメチルアクリルアミド、(メ
タ)アクリルアミド、N−ビニルピロリドン、N−メチ
ロ−ル化アクリルアミド等のアミド基を有する単量体;
N,N’,N”−トリメチル−N−(メタ)アクリロイ
ロキシエチルアンモニウムクロライド等の四級アンモニ
ウム塩基を有する単量体等を挙げることができる。好ま
しくは(メタ)アクリル酸、無水マレイン酸等のカルボ
キシル基を有する単量体;(メタ)アクリル酸ナトリウ
ム塩、(メタ)アクリル酸カリウム塩、(メタ)アクリ
ル酸アンモニウム塩、マレイン酸ナトリウム塩等の塩の
形のカルボキシル基を有する単量体;N・N’−ジメチ
ルアクリルアミド、(メタ)アクリルアミド、N−ビニ
ルピロリドン、N−メチロ−ル化アクリルアミド等のア
ミド基を有する単量体;スルホン酸(塩)基を有する単
量体である。
As the water-soluble unsaturated monomer used in the present invention, monomers having a carboxyl group such as (meth) acrylic acid and maleic anhydride; (meth) acrylic acid sodium salt, (meth) acrylic acid Monomers having a carboxyl group in the form of a salt such as potassium salt, ammonium (meth) acrylic acid salt, and sodium maleic acid salt; vinylsulfonic acid, styrenesulfonic acid, sulfonic acid groups such as sulfopropyl (meth) acrylate Monomers having; vinyl sulfonic acid sodium salt, vinyl sulfonic acid methylamine salt,
Monomers having sulfonic acid salts such as sulfopropyl sodium (meth) acrylate; Hydroxyl monomers such as hydroxyethyl (meth) acrylate and hydroxypropyl (meth) acrylate; Ethylene (meth) acrylate Monomers having ether groups such as glycol monomethyl ether and trioxyethylene glycol (meth) acrylate; amino groups such as dimethylaminoethyl (meth) acrylate and diethylaminoethyl (meth) acrylate A monomer having: an amide group-having monomer such as N, N′-dimethylacrylamide, (meth) acrylamide, N-vinylpyrrolidone, N-methylolated acrylamide;
Examples thereof include monomers having a quaternary ammonium salt group such as N, N ', N "-trimethyl-N- (meth) acryloyloxyethylammonium chloride. (Meth) acrylic acid and maleic anhydride are preferable. Monomers having a carboxyl group such as; a salt having a carboxyl group in the form of a salt such as (meth) acrylic acid sodium salt, (meth) acrylic acid potassium salt, (meth) acrylic acid ammonium salt, and maleic acid sodium salt Body; a monomer having an amide group such as N.N'-dimethylacrylamide, (meth) acrylamide, N-vinylpyrrolidone, and N-methylolated acrylamide; a monomer having a sulfonic acid (salt) group ..

【0009】架橋剤としては、エチレングリコ−ル、ト
リメチロ−ルプロパン、グリセリン、ポリオキシエチレ
ングリコ−ル、ポリオキシプロピレングリコ−ル等のポ
リオ−ル類のジまたはトリ−(メタ)アクリル酸エステ
ル類;前記ポリオ−ル類とマレイン酸等の不飽和酸類と
を反応させて得られる不飽和ポリエステル類;N,N’
−メチレン−ビスアクリルアミド等のビスアクリルアミ
ド類;テトラアリロキシエタン、トリアリルアミン、ア
リル化セルロ−ス等のアリル化合物類;ポリエポキシド
と(メタ)アクリル酸とを反応させて得られるジ−また
はトリ−(メタ)アクリル酸エステル類等が挙げられる
が、場合によってはメチロ−ル化(メタ)アクリルアミ
ド、グリオキザ−ル、エチレングリコ−ル、エチレング
リコ−ルジグリシジルエ−テル等の二官能性化合物や水
酸化カルシウム等も使用できる。好ましくは前記水溶性
不飽和単量体と共重合可能な少なくとも2個の重合性二
重結合を有する架橋剤である。
Examples of the cross-linking agent include di- or tri- (meth) acrylic acid esters of polyols such as ethylene glycol, trimethylolpropane, glycerin, polyoxyethylene glycol and polyoxypropylene glycol. Unsaturated polyesters obtained by reacting the above-mentioned polyols with unsaturated acids such as maleic acid; N, N '
-Bisacrylamides such as methylene-bisacrylamide; allyl compounds such as tetraallyloxyethane, triallylamine, and allylated cellulose; di- or tri- () obtained by reacting a polyepoxide with (meth) acrylic acid. Examples of the (meth) acrylic acid ester include difunctional compounds such as methylated (meth) acrylamide, glyoxal, ethylene glycol, ethylene glycol diglycidyl ether and hydroxylation. Calcium etc. can also be used. A cross-linking agent having at least two polymerizable double bonds copolymerizable with the water-soluble unsaturated monomer is preferable.

【0010】本発明において使用される潮解性無機塩と
は、その飽和水溶液の水蒸気圧が大気の水蒸気分圧より
も小さい無機の塩をさし、具体的にはカルシウム、マグ
ネシウム、リチウム、亜鉛、アルミニウム、スズなどの
塩化物、臭化物、ヨウ化物等のハロゲン化物を挙げるこ
とができる。中でも価格、吸湿能力の点から塩化マグネ
シウム、塩化カルシウムが好適に使用できる。
The deliquescent inorganic salt used in the present invention refers to an inorganic salt whose saturated aqueous solution has a vapor pressure smaller than the vapor partial pressure of the atmosphere, specifically calcium, magnesium, lithium, zinc, Examples thereof include chlorides such as aluminum and tin, and halides such as bromide and iodide. Among them, magnesium chloride and calcium chloride can be preferably used in terms of price and hygroscopic ability.

【0011】本発明における水溶性不飽和単量体、架橋
剤、潮解性無機塩の組成は特に限定されるものではない
が、水溶性不飽和単量体と架橋剤と潮解性無機塩の重量
割合は、水溶性不飽和単量体100に対して架橋剤は
0.0001〜10、潮解性無機塩は10〜1000の
範囲が好ましい。
The composition of the water-soluble unsaturated monomer, the cross-linking agent and the deliquescent inorganic salt in the present invention is not particularly limited, but the weight of the water-soluble unsaturated monomer, the cross-linking agent and the deliquescent inorganic salt. The ratio of the crosslinking agent to the water-soluble unsaturated monomer 100 is preferably 0.0001 to 10, and the deliquescent inorganic salt is preferably 10 to 1000.

【0012】本発明において使用される繊維状基材とし
ては、具体的には繊維を成形してなるもの、例えば、パ
ット、カ−ディングもしくはエアレイディングしたウエ
ブ、紙、紐、木綿ガ−ゼの様な織布、メリヤス地または
不織布である。使用される素材としては、木材パルプ等
の天然繊維、ポリエステルやポリオレフィン等の合成繊
維、無機繊維などいずれもが使用可能である。
The fibrous base material used in the present invention is specifically formed by molding fibers, for example, pad, carded or air-laid web, paper, string, cotton gauze. Woven fabric, knitted fabric or non-woven fabric. As the material used, any of natural fibers such as wood pulp, synthetic fibers such as polyester and polyolefin, and inorganic fibers can be used.

【0013】本発明の吸湿性複合体は、前記水溶性不飽
和単量体、架橋剤および潮解性無機塩を含んでなる水性
液を該繊維状基材に施した後重合を行うことにより得る
ことができる。単量体を含む水性液を繊維状基材に施す
方法としては、単量体が繊維状基材中に均一に分散保持
され、そして重合しうる限り合目的的な任意の手段ない
し態様によることができる。そのための典型的な方法の
一つは、水性液を繊維状基材に含浸させるかあるいは噴
霧する方法である。尚水性液に使用される溶媒としては
水以外に親水性有機溶媒が少量溶在したものであっても
よい。水性液と繊維状基材の比率については特に制限な
いが、通常繊維状基材100部にたいし水性液10〜1
000部の範囲である。
The hygroscopic composite of the present invention is obtained by applying an aqueous liquid containing the water-soluble unsaturated monomer, the cross-linking agent and the deliquescent inorganic salt to the fibrous base material and then polymerizing the fibrous base material. be able to. The method for applying the aqueous liquid containing the monomer to the fibrous base material may be any purposeful means or mode as long as the monomer is uniformly dispersed and held in the fibrous base material and can be polymerized. You can One of the typical methods therefor is to impregnate or spray the fibrous base material with an aqueous liquid. The solvent used for the aqueous liquid may be a solvent in which a small amount of a hydrophilic organic solvent is dissolved in addition to water. The ratio of the aqueous liquid and the fibrous base material is not particularly limited, but usually 100 parts of the fibrous base material and 10 to 1 of the aqueous liquid.
The range is 000 copies.

【0014】繊維状基材に施された水溶性不飽和単量
体、架橋剤および潮解性無機塩を含む水性液の重合方法
は、前記水溶性不飽和単量体の重合に関し従来から知ら
れているいかなる方法でもよく、例えば放射線、電子
線、紫外線等を照射する方法;過酸化水素、過硫酸アン
モニウム等のラジカル重合開始剤を用いて重合させる方
法等が挙げられる。放射線、電子線、紫外線等を照射し
重合させる方法は通常の方法でよい。またラジカル重合
開始剤を用いて重合させる方法も特に限定されず、例え
ば温度は、用いる開始剤の種類によって異なるが、通常
10〜150℃、好ましくは20〜100℃でよい。開
始剤量も通常でよく、レドックス系の重合開始剤も使用
できる。開始剤はあらかじめ水性液中に含有させておい
てもよく、重合時に後添加することも可能である。
The method for polymerizing an aqueous liquid containing a water-soluble unsaturated monomer, a cross-linking agent and a deliquescent inorganic salt applied to a fibrous base material is conventionally known for polymerization of the water-soluble unsaturated monomer. Any method may be used, and examples thereof include a method of irradiating with radiation, an electron beam, an ultraviolet ray and the like; a method of polymerizing with a radical polymerization initiator such as hydrogen peroxide and ammonium persulfate. A method of irradiating with radiation, electron beam, ultraviolet ray or the like to polymerize may be an ordinary method. The method of polymerizing using a radical polymerization initiator is not particularly limited, and the temperature may be usually 10 to 150 ° C., preferably 20 to 100 ° C., although it varies depending on the type of the initiator used. The amount of the initiator may be usual, and a redox type polymerization initiator may be used. The initiator may be contained in the aqueous liquid in advance, or may be added after the polymerization.

【0015】この様にして得られた吸湿性複合体は、熱
風、マイクロ波、赤外線等の手段により乾燥されるのが
普通である。得られた吸湿性複合体に更に、消臭剤、防
腐・防カビ剤、芳香剤、着色剤等を重合時に或いは重合
後に添加して本発明の吸湿性複合体とすることもでき
る。
The hygroscopic composite thus obtained is usually dried by means of hot air, microwaves, infrared rays or the like. The hygroscopic composite of the present invention can be obtained by further adding a deodorant, an antiseptic / antifungal agent, an aromatic agent, a coloring agent or the like to the obtained hygroscopic composite during or after the polymerization.

【0016】場合によっては得られた吸湿性複合体の少
なくとも一方に熱可塑性樹脂シ−ト層、粘着剤層、不織
布層、紙等を種々の方法で貼り合わせておくこともでき
る。
In some cases, a thermoplastic resin sheet layer, a pressure-sensitive adhesive layer, a non-woven fabric layer, paper or the like can be attached to at least one of the resulting hygroscopic composites by various methods.

【0017】本発明の方法で得られた吸湿性複合体は、
居室、押入れ、ゲタ箱、靴の中、ロッカ−の中等、除湿
したい場所で有効に使用できる。又、繊維状基材に高吸
湿性を有する樹脂が重合により一体化されているので、
取扱い・加工性に優れる。著しく吸湿速度が早く優れた
吸湿能力を有しているのみならず、吸湿後にも液状化す
る心配がないので例えば、のり、せんべい等吸湿を嫌っ
て密閉容器に販売されている商品、発錆を嫌う機器類の
梱包等、従来シリカゲルを使用していた食品や工業用品
類に使用して、より強力な効果を発揮するものである。
更に本発明の吸湿性複合体は、吸湿後も乾燥することに
より初期の吸湿能力を失うことなく繰り返し使用可能で
ある。
The hygroscopic composite obtained by the method of the present invention is
It can be used effectively in places where you want to dehumidify such as living room, closet, getter box, shoes, rocker, etc. Further, since the resin having high hygroscopicity is integrated with the fibrous base material by polymerization,
Excellent handling and workability. Not only does it have an extremely fast moisture absorption rate and excellent moisture absorption capacity, but there is no risk of liquefaction even after moisture absorption. It is more effective when used for foods and industrial products that have traditionally used silica gel, such as packaging of disliked devices.
Furthermore, the hygroscopic composite of the present invention can be repeatedly used without losing the initial hygroscopic ability by drying even after moisture absorption.

【0018】以下、実施例を挙げて本発明を更に具体的
に説明するが、本発明はこれに限定されるものではな
い。実施例および比較例中の部および%は重量による。
Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto. Parts and% in the examples and comparative examples are by weight.

【0019】[0019]

【実施例1】37%アクリル酸ナトリウム水溶液80
部、アクリル酸8部、メチレンビスアクリルアミド0.
007部、30%塩化マグネシウム水溶液125部およ
び過硫酸ナトリウム0.5部からなる単量体水性液を、
坪量23g/m2のポリプロピレン不織布に固形分量が
34g/m2となるように付着せしめて120℃で重合
を行い、坪量が57g/m2である本発明の吸湿性複合
体(1)を得た。
Example 1 37% sodium acrylate aqueous solution 80
Parts, acrylic acid 8 parts, methylenebisacrylamide 0.
007 parts, a 30% magnesium chloride aqueous solution 125 parts, and a monomer aqueous solution comprising 0.5 parts of sodium persulfate,
Solid content in polypropylene nonwoven having a basis weight of 23 g / m 2 performs polymerization in adhesion allowed to 120 ° C. so as to 34g / m 2, hygroscopic complexes of the invention having a basis weight is 57g / m 2 (1) Got

【0020】[0020]

【実施例2】37%アクリル酸ナトリウム水溶液40
部、アクリル酸4部、エチレングリコ−ルジアクリレ−
ト0.64部、30%塩化マグネシウム水溶液100
部、ヒドロキシエチルセルロ−ス0.6部および過硫酸
ナトリウム0.5部からなる単量体水性液を、坪量76
g/m2の難燃紙に固形分量が34g/m2となるように
付着せしめて120℃で重合を行い、坪量が110g/
2である本発明の吸湿性複合体(2)を得た。
Example 2 40% 37% aqueous sodium acrylate solution
Parts, acrylic acid 4 parts, ethylene glycol diacryle
0.64 parts, 100% aqueous 30% magnesium chloride solution
Part, hydroxyethyl cellulose 0.6 part, and sodium persulfate 0.5 part, a monomer aqueous solution having a basis weight of 76
g / solid content in the flame燃紙of m 2 performs polymerization in adhesion allowed to 120 ° C. so as to 34g / m 2, a basis weight of 110g /
A hygroscopic composite (2) of the present invention having m 2 was obtained.

【0021】[0021]

【実施例3】実施例1および実施例2で得られた本発明
の吸湿性複合体(1)および(2)を1.0gずつそれ
ぞれ500mlのガラス容器に入れ、25℃、相対湿度
90%の恒温恒湿槽に放置して重量増加量を経時的に測
定して吸湿量を調べた。この結果および10時間後の吸
湿状態を表1に示す。なおブランクとして、塩化マグネ
シウムおよびシリカゲルのみの場合の結果も表1に併記
した。表1から明らかな様に本発明の吸湿性複合体は吸
湿速度・吸湿量に優れ、また吸湿後の液ダレがない。
Example 3 1.0 g of each of the hygroscopic composites (1) and (2) of the present invention obtained in Examples 1 and 2 was put into a 500 ml glass container at 25 ° C. and a relative humidity of 90%. The sample was left in a constant temperature and constant humidity tank, and the amount of weight increase was measured with time to examine the amount of moisture absorption. The results and the moisture absorption state after 10 hours are shown in Table 1. As a blank, the results when only magnesium chloride and silica gel were used are also shown in Table 1. As is clear from Table 1, the hygroscopic composite of the present invention is excellent in the rate of moisture absorption and the amount of moisture absorption, and there is no liquid dripping after moisture absorption.

【0022】[0022]

【実施例4】30cm×30cmに裁断した実施例1で
得られた本発明の吸湿性複合体(1)の片面に粘着剤層
を設け、マンション北側の壁の結露区域に貼付したとこ
ろ、その部分の結露が防止できた。
Example 4 A pressure-sensitive adhesive layer was provided on one surface of the hygroscopic composite (1) of the present invention obtained in Example 1 which was cut into 30 cm × 30 cm, and the adhesive layer was applied to the dew condensation area on the north side of the apartment. Condensation on the part was prevented.

【0023】[0023]

【表1】 [Table 1]

【0024】[0024]

【発明の効果】本発明は、水溶性不飽和単量体、架橋剤
および潮解性無機塩を含んでなる水性液を繊維状基材に
施した後重合することを特徴とする吸湿性複合体の製法
である。本発明の方法により、液ダレがなく、吸湿速度
・吸湿量に優れた吸湿性複合体を容易に製造することが
可能となった。したがって本発明の方法によれば、以下
の特徴を有する吸湿性複合体を簡便かつ安価に製造でき
る。
INDUSTRIAL APPLICABILITY In the present invention, a hygroscopic composite is characterized in that an aqueous liquid containing a water-soluble unsaturated monomer, a cross-linking agent and a deliquescent inorganic salt is applied to a fibrous substrate and then polymerized. Is the manufacturing method. According to the method of the present invention, it has become possible to easily produce a hygroscopic composite having no liquid dripping and having an excellent moisture absorption rate and moisture absorption amount. Therefore, according to the method of the present invention, a hygroscopic composite having the following characteristics can be easily produced at low cost.

【0025】1)吸湿特性に優れた吸湿性樹脂を繊維状
基材中に分散固定しているので、吸放湿速度が著しく早
い。
1) Since the hygroscopic resin having an excellent hygroscopic property is dispersed and fixed in the fibrous base material, the moisture absorbing / releasing rate is remarkably high.

【0026】2)吸湿後も液だれがなく、周囲を濡らす
ことがない。
2) There is no dripping even after absorbing moisture, and the surroundings are not wetted.

【0027】3)シ−ト状に成形されているので取扱い
やすく、貼付したり包材としても使用できる。
3) Since it is shaped like a sheet, it is easy to handle and can be used as a sticking material or a packaging material.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 下村 忠生 大阪府吹田市西御旅町5番8号 株式会社 日本触媒中央研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadao Shimomura 5-8 Nishimitabicho, Suita City, Osaka Pref.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 水溶性不飽和単量体、架橋剤および潮解
性無機塩を含んでなる水性液を繊維状基材に施した後重
合することを特徴とする吸湿性複合体の製法。
1. A method for producing a hygroscopic composite, which comprises subjecting a fibrous base material to an aqueous liquid containing a water-soluble unsaturated monomer, a cross-linking agent and a deliquescent inorganic salt, and then polymerizing the same.
JP26938091A 1991-10-17 1991-10-17 Preparation of composites containing deliquescent inorganic salts Expired - Fee Related JP3146030B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26938091A JP3146030B2 (en) 1991-10-17 1991-10-17 Preparation of composites containing deliquescent inorganic salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26938091A JP3146030B2 (en) 1991-10-17 1991-10-17 Preparation of composites containing deliquescent inorganic salts

Publications (2)

Publication Number Publication Date
JPH05105705A true JPH05105705A (en) 1993-04-27
JP3146030B2 JP3146030B2 (en) 2001-03-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP26938091A Expired - Fee Related JP3146030B2 (en) 1991-10-17 1991-10-17 Preparation of composites containing deliquescent inorganic salts

Country Status (1)

Country Link
JP (1) JP3146030B2 (en)

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WO2011032862A1 (en) 2009-09-18 2011-03-24 Basf Se Open-cell foams having superabsorbers
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DE102005015536A1 (en) * 2005-04-04 2006-10-05 Basf Ag Moistures regulating composite material comprises laminar substrate, water-soluble hygroscopic substance and water-absorbing polymerized polymer, which is present on the hygroscopic substance or the laminar substrate
ITMI20072087A1 (en) * 2007-10-30 2009-04-30 Getters Spa METHOD FOR THE PRODUCTION OF A COMPOSITE ABSORBER FOR THE REMOVAL OF H2O CONSISTED OF DISSOLVED HYGROSCOPIC SALTS IN A POLYMERIC MATRIX

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WO2011032862A1 (en) 2009-09-18 2011-03-24 Basf Se Open-cell foams having superabsorbers
WO2011054784A1 (en) 2009-11-06 2011-05-12 Basf Se Textiles comprising improved superabsorbers
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