JPH09169863A - Blowing agent for producing urethane foam, urethane composition, and production of urethane foam - Google Patents
Blowing agent for producing urethane foam, urethane composition, and production of urethane foamInfo
- Publication number
- JPH09169863A JPH09169863A JP7331890A JP33189095A JPH09169863A JP H09169863 A JPH09169863 A JP H09169863A JP 7331890 A JP7331890 A JP 7331890A JP 33189095 A JP33189095 A JP 33189095A JP H09169863 A JPH09169863 A JP H09169863A
- Authority
- JP
- Japan
- Prior art keywords
- urethane foam
- urethane
- weight
- foam
- producing
- 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
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ウレタンフォーム
を製造する場合に使用する発泡剤、ウレタンフォーム原
料であるウレタン組成物、及びウレタンフォームの製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foaming agent used for producing a urethane foam, a urethane composition which is a raw material for a urethane foam, and a method for producing a urethane foam.
【０００２】[0002]
【従来の技術】ウレタン組成物に発泡剤を添加して発泡
させたウレタンフォームには現在多くの利用分野があ
り、その物理的性状により軟質ウレタンフォーム、半硬
質ウレタンフォーム、及び硬質ウレタンフォームに分類
される。軟質ウレタンフォームは圧縮硬さが非常に小さ
く、可撓性があり、又、半硬質ウレタンフォームは軟質
ウレタンフォームと硬質ウレタンフォームの中間の圧縮
硬さがあり、衝撃吸収や永久歪も大きい。更に、硬質ウ
レタンフォームは、軟質ウレタンフォームのように弾性
は高くないが、断熱性が非常に大きい。そのためにウレ
タンフォームはこれらの特徴に応じて、自動車、寝具、
家具、及び建材等の用途に広く使用されている。2. Description of the Related Art Currently, urethane foams obtained by adding a foaming agent to a urethane composition have many fields of application, and are classified into soft urethane foams, semi-rigid urethane foams, and hard urethane foams according to their physical properties. To be done. The flexible urethane foam has a very small compression hardness and flexibility, and the semi-rigid urethane foam has a compression hardness intermediate between those of the soft urethane foam and the hard urethane foam, and has a large impact absorption and a large permanent set. Further, the rigid urethane foam does not have high elasticity like the flexible urethane foam, but has a very high heat insulating property. For this reason, urethane foam is used for automobiles, bedding, and
Widely used for furniture and building materials.
【０００３】従来、ウレタンフォームを製造する場合に
使用する発泡剤としては、水、フロン１１やフロン１２
等の塩化フッ化炭素、メチレンクロライドやエチレンク
ロライド等の塩化アルキレン、並びに、イソペンタン等
が挙げられる（特開平５−１１７１号公報参照）。水
は、イソシアネート類との反応により炭酸ガスを放出す
るために発泡作用を示し、塩化フッ化炭素、塩化アルキ
レン、及びイソペンタン等は低沸点成分であり、常温で
気体であったり、反応熱により気化したりするために発
泡作用を示す〔今井嘉夫著「ポリウレタンフォーム」、
高分子刊行会編（１９８７）〕。Conventionally, as a foaming agent used for producing a urethane foam, water, Freon 11 or Freon 12 is used.
And chlorofluorocarbons such as alkylene chloride, alkylene chlorides such as methylene chloride and ethylene chloride, and isopentane (see JP-A No. 5-1171). Water has a foaming action because it releases carbon dioxide by reacting with isocyanates, and carbon chlorofluorocarbons, alkylene chlorides, isopentane, etc. are low-boiling components, and are gasses at room temperature or vaporized by the heat of reaction. It exhibits a foaming effect in order to convert it into plastic (“Polyurethane foam” by Yoshio Imai,
High Polymer Publishing Association (1987)].
【０００４】[0004]
【発明が解決しようとする課題】しかし、発泡剤として
水やイソペンタンを使用した場合、自己消火性を付与で
きないという課題があり、塩化フッ化炭素や塩化アルキ
レンを使用することは、健康上や環境上の理由で好まし
くないという課題があった。又、ウレタンフォームは燃
えやすいために火災の危険性が大きく、難燃剤を添加し
て自己消火性を付与する必要があった。難燃剤としてハ
ロゲンやリン系化合物等が使用されるが、やはり健康上
や環境上好ましくないという課題があった。However, when water or isopentane is used as a foaming agent, there is a problem that self-extinguishing property cannot be imparted, and the use of fluorocarbon chloride or alkylene chloride is not suitable for health and environment. There is a problem that it is not preferable for the above reason. Further, since urethane foam easily burns, there is a great risk of fire, and it was necessary to add a flame retardant to impart self-extinguishing property. Halogen and phosphorus compounds are used as flame retardants, but there is a problem that they are not preferable in terms of health and environment.
【０００５】ウレタンフォームには多様な用途があり、
我々の生活に密着した高分子材料の一つであるために、
ウレタンフォームを使用する場合には健康や環境に対す
る安全性や自己消火性の向上を十分考慮することが望ま
れていた。本発明者らはこれらの課題を解決するために
鋭意検討した結果、ある特定の発泡剤がウレタン組成物
の発泡性とウレタンフォームの自己消火性を同時に向上
できるという知見を得て本発明を完成するに至った。Urethane foam has various uses,
To be one of the polymer materials that are closely related to our lives,
When using urethane foam, it has been desired to fully consider the safety for health and the environment and the improvement of self-extinguishing property. The inventors of the present invention have conducted extensive studies to solve these problems, and have completed the present invention by finding that a specific foaming agent can simultaneously improve the foamability of the urethane composition and the self-extinguishing property of the urethane foam. Came to do.
【０００６】[0006]
【課題を解決するための手段】即ち本発明は、アルミノ
ケイ酸塩類を含有してなるウレタンフォーム製造用発泡
剤、ウレタン組成物、及びウレタンフォームの製造方法
である。That is, the present invention is a foaming agent for producing a urethane foam containing an aluminosilicate, a urethane composition, and a method for producing a urethane foam.
【０００７】[0007]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明のウレタンフォーム製造用発泡剤（以下、本発泡
剤と略す）は、アルミノケイ酸塩類を含有してなる物質
である。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The foaming agent for producing urethane foam of the present invention (hereinafter abbreviated as the present foaming agent) is a substance containing aluminosilicates.
【０００８】本発明で使用するアルミノケイ酸塩とは、
ケイ酸塩のケイ素の一部がアルミニウムにより置換され
て生ずる塩をいう。これらの中では含水率が大きい点
で、Ｓｉ−Ｏ四面体又はＡｌ−Ｏ四面体が平面的に連続
したＳｉ−Ｏ四面体層又はＡｌ−Ｏ四面体層と、Ａｌ−
Ｏ八面体又はＡｌ−ＯＨ八面体が平面的に連続したＡｌ
−Ｏ八面体層又はＡｌ−ＯＨ八面体層とが、積層した層
状構造である層状アルミノケイ酸塩が好ましい。The aluminosilicate used in the present invention is
It refers to a salt formed by replacing a part of silicon of silicate with aluminum. Among these, in view of a high water content, a Si—O tetrahedron layer or an Al—O tetrahedron layer in which a Si—O tetrahedron or an Al—O tetrahedron is planarly continuous, and an Al—O tetrahedron layer
Al in which O octahedron or Al-OH octahedron is planarly continuous
A layered aluminosilicate having a layered structure in which an —O octahedral layer or an Al—OH octahedral layer is laminated is preferable.
【０００９】Ｓｉ−Ｏ四面体又はＡｌ−Ｏ四面体は、ケ
イ素原子又はアルミニウム原子を中心とし、それらに酸
素原子が結合した構造である。Ａｌ−Ｏ八面体又はＡｌ
−ＯＨ八面体はアルミニウム原子を中心とし、アルミニ
ウム原子に酸素原子又は水酸基が結合した構造である。
層状アルミノケイ酸塩類は、その層状構造により２：１
層と１：１層に分類される。２：１層とはＡｌ−Ｏ八面
体層又はＡｌ−ＯＨ八面体層の上下をＳｉ−Ｏ四面体層
又はＡｌ−Ｏ四面体層で挟んだ層状構造の繰り返しをい
い、１：１層とはＡｌ−Ｏ八面体層又はＡｌ−ＯＨ八面
体層と、Ｓｉ−Ｏ四面体層又はＡｌ−Ｏ四面体層とが交
互に積層した層状構造をいう。The Si-O tetrahedron or the Al-O tetrahedron is a structure in which oxygen atoms are bonded to silicon atoms or aluminum atoms as the center. Al-O octahedron or Al
The —OH octahedron has a structure in which an aluminum atom is the center and an oxygen atom or a hydroxyl group is bonded to the aluminum atom.
Layered aluminosilicates are 2: 1 due to their layered structure.
Layers and 1: 1 layers. The 2: 1 layer is a repetition of a layered structure in which the upper and lower sides of the Al-O octahedral layer or the Al-OH octahedral layer are sandwiched by the Si-O tetrahedral layer or the Al-O tetrahedral layer, and is referred to as a 1: 1 layer. Indicates a layered structure in which an Al-O octahedral layer or an Al-OH octahedral layer and a Si-O tetrahedral layer or an Al-O tetrahedral layer are alternately laminated.
【００１０】層状アルミノケイ酸塩類としては、バイデ
ライト、カオリナイト、ハロイサイト、モンモリロナイ
ト、パイロフィライト、バーミキュライト、雲母、緑泥
石、サポナイト、又は酸性白土等を含有してなる粘土鉱
物等が挙げられ、これらの１種又は２種以上を含有して
なる粘土を使用できる。これらの中では含水率を大きく
できる点で、モンモリロナイト−バイデライト系鉱物を
主に含有してなるベントナイトが好ましい。Examples of the layered aluminosilicates include clay minerals containing beidellite, kaolinite, halloysite, montmorillonite, pyrophyllite, vermiculite, mica, chlorite, saponite, acid clay and the like. Clay containing one kind or two or more kinds can be used. Among these, bentonite mainly containing a montmorillonite-beidellite mineral is preferable because the water content can be increased.
【００１１】本発明の含水率とは、アルミノケイ酸塩類
中に含有する非結晶水の割合をいう。アルミノケイ酸塩
類中の非結晶水とは、１５０℃程度の乾燥工程で放出さ
れる水分をいい、アルミノケイ酸塩類の表面に付着した
り層間に含有したりする遊離水分を主にいう。The water content of the present invention means the proportion of non-crystal water contained in aluminosilicates. Amorphous water in aluminosilicates refers to water released in a drying process at about 150 ° C., and mainly refers to free water attached to the surface of aluminosilicates or contained between layers.
【００１２】含水率は適度な発泡状態を得る上で、１〜
２０重量％が好ましく、５〜１５重量％がより好まし
い。含水率が１重量％未満では発泡の効果がないおそれ
がある。含水率が２０重量％を越えるとウレタン組成物
が急激に発泡し、硬化不良を起こすおそれがある。含水
率が２０重量％を越える場合はアルミノケイ酸塩類を乾
燥させ、含水率が１重量％未満の場合はアルミノケイ酸
塩類を含水させることによって、含水率を調整できる。The water content is from 1 to 1 in order to obtain an appropriate foamed state.
20 wt% is preferable, and 5 to 15 wt% is more preferable. If the water content is less than 1% by weight, the effect of foaming may not be obtained. If the water content exceeds 20% by weight, the urethane composition may suddenly foam, resulting in poor curing. When the water content exceeds 20% by weight, the aluminosilicates are dried, and when the water content is less than 1% by weight, the aluminosilicates are contained so that the water content can be adjusted.
【００１３】本発泡剤の使用量は、ウレタン組成物の原
料である後述のイソシアネート類とポリオール類との合
計１００重量部に対して、１〜１２０重量部が好まし
く、３〜８０重量部がより好ましい。使用量が１重量部
未満ではウレタン組成物を発泡させることが難しくなる
おそれがある。使用量が１２０重量部を越えるとウレタ
ン組成物が急激に発泡し、硬化不良を起こすおそれがあ
る。The amount of the foaming agent used is preferably 1 to 120 parts by weight, more preferably 3 to 80 parts by weight, based on 100 parts by weight of a total of isocyanates and polyols, which are raw materials of the urethane composition, described below. preferable. If the amount used is less than 1 part by weight, it may be difficult to foam the urethane composition. If the amount used exceeds 120 parts by weight, the urethane composition may suddenly foam, resulting in poor curing.
【００１４】本発明で使用するイソシアネート類として
は、４，４’−ジフェニルメタンジイソシアネート（Ｍ
ＤＩ）、２，４−トリレンジイソシアネート（ＴＤ
Ｉ）、１，３−キシリレンジイソシアネート（ＸＤ
Ｉ）、ヘキサメチレンジイソシアネート（ＨＭＤＩ）、
ポリメチレンポリフェニルポリイソシアネート（ポリメ
リックＭＤＩ）、１，５−ナフタレンジイソシアネート
（ＮＤＩ）、上記イソシアネート類を、水や分子量１０
００以下の１価又は多価のアルコールで変性した変性
物、及び上記イソシアネート類と分子量１０００を越え
る１価又は多価のアルコール等が挙げられ、これらのう
ちの１種又は２種以上を使用できる。The isocyanates used in the present invention include 4,4'-diphenylmethane diisocyanate (M
DI), 2,4-tolylene diisocyanate (TD
I), 1,3-xylylene diisocyanate (XD
I), hexamethylene diisocyanate (HMDI),
Polymethylene polyphenyl polyisocyanate (Polymeric MDI), 1,5-naphthalene diisocyanate (NDI), the above-mentioned isocyanates in water or molecular weight 10
Examples thereof include modified products modified with monohydric or polyhydric alcohols of 00 or less, and the above isocyanates and monohydric or polyhydric alcohols having a molecular weight of more than 1000. One or more of these can be used. .
【００１５】又、本発明で使用するポリオール類として
は、ポリエチレングリコール、ポリプロピレングリコー
ル、及びヘキサメチレングリコール等のポリアルキレン
グリコール類、グリセリン、ソルビトール、及びショ糖
にエチレンオキサイドやプロピレンオキサイドを付加し
た付加物、トリメチロールプロパン、並びに、ひまし油
のトリグリセリト等が挙げられ、これらのうちの１種又
は２種以上を使用できる。The polyols used in the present invention include polyalkylene glycols such as polyethylene glycol, polypropylene glycol, and hexamethylene glycol, glycerin, sorbitol, and adducts of sucrose with ethylene oxide or propylene oxide added. , Trimethylolpropane, and castor oil triglycerite, and the like, and one or more of them can be used.
【００１６】ポリオール類の使用量は、イソシアネート
類１００重量部に対して、５０〜１５０重量部が好まし
く、８０〜１２０重量部がより好ましい。５０重量部未
満ではウレタンフォームの硬化時間が遅くなり、１５０
重量部を越えるとウレタン組成物が発泡しにくくなるお
それがある。The amount of polyols used is preferably 50 to 150 parts by weight, more preferably 80 to 120 parts by weight, based on 100 parts by weight of isocyanates. If it is less than 50 parts by weight, the curing time of the urethane foam will be delayed,
If it exceeds the weight part, the urethane composition may be less likely to foam.
【００１７】本発明で使用する触媒とは、イソシアネー
トとポリオールの反応時間を制御する物質をいう。触媒
としては、アミン系触媒、有機金属系触媒、及び無機系
触媒等が挙げられるが、有機金属系触媒や無機系触媒は
イソシアネートとポリオールの反応活性が比較的小さ
く、環境への悪影響も考えられるので、アミン系触媒を
使用することが好ましい。アミン系触媒としては、エチ
レンジアミン、トリエチレンジアミン、トリエチルアミ
ン、トリエタノールアミン、及びヘキサメチレンジアミ
ン等が挙げられる。これらの触媒にエーテル、トルエ
ン、ヘキサン等の溶剤を併用することもできる。The catalyst used in the present invention refers to a substance that controls the reaction time between isocyanate and polyol. Examples of the catalyst include amine-based catalysts, organometallic-based catalysts, and inorganic-based catalysts. Organometallic-based catalysts and inorganic-based catalysts have a relatively small reaction activity between isocyanate and polyol, and may have an adverse effect on the environment. Therefore, it is preferable to use an amine catalyst. Examples of amine-based catalysts include ethylenediamine, triethylenediamine, triethylamine, triethanolamine, and hexamethylenediamine. A solvent such as ether, toluene or hexane may be used in combination with these catalysts.
【００１８】触媒の使用量はイソシアネート類１００重
量部に対して、０．１〜５重量部が好ましく、０．２〜
３重量部がより好ましい。０．１重量部未満では反応が
遅くなるおそれがあり、５重量部を越えると反応が速す
ぎて発泡作用を制御しにくくなるおそれがある。The amount of the catalyst used is preferably 0.1 to 5 parts by weight, and 0.2 to 5 parts by weight, based on 100 parts by weight of the isocyanates.
3 parts by weight is more preferable. If the amount is less than 0.1 part by weight, the reaction may be delayed, and if the amount is more than 5 parts by weight, the reaction may be too fast to control the foaming action.
【００１９】本発泡剤の分散性を向上させるために、ナ
フタリン系スルホン酸ナトリウムやドデシルベンゼンス
ルホン酸ナトリウム等のスルホン酸塩類、トリポリリン
酸ナトリウム等のリン酸塩類等の分散剤を添加してもよ
い。又、本発明には、ポリオキシアルキレンアルキルエ
ーテルやポリオキシアルキレンアルキルアミノエーテル
等のポリオキシアルキレン系、オルガノポリシロキサン
やシロキサンオキシアルキレンコポリマー等のシリコン
系の整泡剤を添加してもよい。その他、可塑剤、安定
剤、着色剤等を必要に応じ添加してもよい。In order to improve the dispersibility of the foaming agent, a dispersant such as a sulfonate such as sodium naphthalene sulfonate or sodium dodecylbenzene sulfonate or a phosphate such as sodium tripolyphosphate may be added. . In the present invention, polyoxyalkylene-based foam stabilizers such as polyoxyalkylene alkyl ether and polyoxyalkylene alkylamino ether, and silicon-based foam stabilizers such as organopolysiloxane and siloxaneoxyalkylene copolymer may be added. In addition, a plasticizer, a stabilizer, a colorant and the like may be added as required.
【００２０】本発泡剤の使用方法は特に限定されるもの
ではないが、次のような方法が挙げられる。例えば、イ
ソシアネート類、ポリオール類、触媒、及び本発泡剤を
予め一括混合して発泡硬化させる方法や、イソシアネー
ト類とポリオール類を混合後に、更に本発泡剤を添加、
混合して発泡硬化させる方法等が挙げられる。ウレタン
組成物の発泡方法としては、通常の大気圧下で発泡させ
る方法や真空状態で発泡させる方法等があるが、通常は
適当な型枠に流し込んで硬化させ、加熱炉で熟成後更に
室温で熟成し成形する方法が一般的である。又、本発明
では、ギアポンプやピストンポンプ等により圧送できる
という特徴を有する。通常ウレタン組成物はギアポンプ
やピストンポンプ等により４〜３００ｋｇ／ｃｍ2 の圧
力で混合機に圧送された後に、混合液として１ｋｇ／ｍ
ｉｎ〜７００ｋｇ／ｍｉｎの吐出量で吐出され、ウレタ
ンフォームが形成される。The method of using the foaming agent is not particularly limited, but the following methods may be mentioned. For example, a method in which isocyanates, polyols, a catalyst, and the foaming agent are mixed together in advance by foaming and curing, or after mixing the isocyanates and the polyols, the foaming agent is further added,
Examples include a method of mixing and foaming and curing. As a foaming method of the urethane composition, there are a method of foaming under a normal atmospheric pressure, a method of foaming under a vacuum, and the like, but usually, it is poured into an appropriate mold to be cured, and after maturing in a heating furnace, further at room temperature. The method of aging and molding is common. Further, the present invention has a feature that it can be pressure-fed by a gear pump, a piston pump or the like. Usually, the urethane composition is pressure-fed to the mixer at a pressure of 4 to 300 kg / cm 2 by a gear pump or a piston pump, and then 1 kg / m as a mixed liquid.
The urethane foam is formed by being discharged at a discharge rate of from in to 700 kg / min.
【００２１】なお、本発明のウレタン組成物は、ポリオ
ール類を添加したＡ液と、イソシアネート類を添加した
Ｂ液とに分けた二液型ウレタン組成物として使用しても
よい。この場合、それぞれ別々のタンクに投入したＡ液
とＢ液を圧送してＹ字管等の合流管で両液を合流させた
後に、スタティクミキサーで混合してウレタン組成物を
発泡硬化させる。なお、本発泡剤はＡ液とＢ液のいずれ
か一方又は両方に添加してよく、本発泡剤を添加した液
には分散剤も一緒に添加できる。The urethane composition of the present invention may be used as a two-component urethane composition which is divided into a liquid A containing a polyol and a liquid B containing an isocyanate. In this case, the liquid A and the liquid B, which are respectively put into separate tanks, are pressure-fed, and the two liquids are joined by a joining pipe such as a Y-shaped pipe, and then mixed by a static mixer to foam and cure the urethane composition. The foaming agent may be added to either one or both of the solutions A and B, and a dispersant may be added together with the solution containing the foaming agent.
【００２２】[0022]
【実施例】以下、実施例に基づき詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description will be given based on embodiments.
【００２３】（実施例１）イソシアネート類１００重
量部に対して、ポリオール類α１００重量部と、触媒ｉ
０．５重量部を混合し、更に本発泡剤の使用量をイソシ
アネート類とポリオール類の合計１００重量部に対して
表１に示すように混合した。混合後室温で放置して、発
泡、硬化してウレタンフォームを得た。得られたウレタ
ンフォームの発泡倍率と酸素指数を測定し、結果を表１
に示した。なお、比較例として、発泡剤に水を使用して
発泡倍率を２０倍にさせたウレタンフォームを製造し
た。Example 1 100 parts by weight of isocyanates, 100 parts by weight of polyols α, and catalyst i
0.5 part by weight was mixed, and the amount of the foaming agent used was mixed as shown in Table 1 with respect to a total of 100 parts by weight of isocyanates and polyols. After mixing, the mixture was left at room temperature, foamed and cured to obtain a urethane foam. The expansion ratio and oxygen index of the obtained urethane foam were measured, and the results are shown in Table 1.
It was shown to. As a comparative example, a urethane foam having a foaming ratio of 20 times was produced by using water as a foaming agent.
【００２４】 （使用材料） イソシアネート類：市販のポリメリックＭＤＩ ポリオール類α ：市販のポリプロピレングリコール 触媒ｉ ：市販のテトラメチルヘキサメチレンジアミン 本発泡剤ａ ：市販のベントナイト、含水率９重量％ 本発泡剤ｂ ：市販の酸性白土、含水率８重量％ ｃ ：市販のアルミン酸ナトリウム、含水率１重量％以下(Materials used) Isocyanates: Commercially available polymeric MDI polyols α: Commercially available polypropylene glycol Catalyst i: Commercially available tetramethylhexamethylenediamine Main blowing agent a: Commercial bentonite, water content 9% by weight Main blowing agent b : Commercial acid clay, water content 8% by weight c: Commercial sodium aluminate, water content 1% by weight or less
【００２５】（測定方法） 含水率：アルミノケイ酸塩類を１５０℃の乾燥器で２４
時間乾燥し、減少した重量分を以下の計算方法によって
算出した。 （含水率）＝〔｛（乾燥前の重量）−（乾燥後の重
量）｝／（乾燥前の重量）〕×１００（重量％） 発泡倍率：以下の計算方法によって算出した。 （発泡倍率）＝（発泡前の混合液の比重）／（得られた
ウレタンフォームの比重） 酸素指数：「酸素指数法による高分子材料の燃焼試験方
法」JIS-K-7201に従い行った。酸素指数は２２以上の場
合自己消化性を示し、２９以上の場合難燃性を示す。(Measurement method) Moisture content: Aluminosilicates were dried in a dryer at 150 ° C. for 24 hours.
After drying for an hour, the weight loss was calculated by the following calculation method. (Water content) = [{(weight before drying)-(weight after drying)} / (weight before drying)] × 100 (wt%) Foaming ratio: Calculated by the following calculation method. (Expansion ratio) = (Specific gravity of mixed liquid before foaming) / (Specific gravity of obtained urethane foam) Oxygen index: “Combustion test method of polymer material by oxygen index method” was performed according to JIS-K-7201. When the oxygen index is 22 or more, it shows self-extinguishing property, and when it is 29 or more, it shows flame retardancy.
【００２６】[0026]
【表１】 [Table 1]
【００２７】（実施例２）イソシアネート類１００重
量部に対して、触媒ｉ０．５重量部、又、イソシアネー
ト類とポリオール類αの合計１００重量部に対して、
本発泡剤ａ１０重量部を混合し、更にポリオール類αの
使用量をイソシアネート類１００重量部に対して表２に
示すように添加、混合し、硬化してウレタンフォームを
得たこと以外は実施例１と同様に行った。得られたウレ
タンフォームの発泡倍率と酸素指数を測定し、結果を表
２に示した。(Example 2) 0.5 parts by weight of the catalyst i was added to 100 parts by weight of the isocyanates, and 100 parts by weight of the total of the isocyanates and the polyols α was added.
Example 10 except that 10 parts by weight of the present blowing agent a was mixed, and the amount of the polyol α used was added to 100 parts by weight of the isocyanates as shown in Table 2, mixed and cured to obtain a urethane foam. The same procedure as 1 was performed. The expansion ratio and oxygen index of the obtained urethane foam were measured, and the results are shown in Table 2.
【００２８】[0028]
【表２】 [Table 2]
【００２９】（実施例３）イソシアネート類１００重
量部に対して、ポリオール類α１００重量部、触媒ｉ
０．５重量部、又、本発泡剤ａを乾燥又は含水させたり
して表３に示す含水率にした本発泡剤を、イソシアネー
ト類とポリオール類αの合計１００重量部に対して２
０重量部を添加、混合、硬化してウレタンフォームを得
たこと以外は実施例１と同様に行った。得られたウレタ
ンフォームの発泡倍率と酸素指数を測定し、結果を表３
に示した。(Example 3) 100 parts by weight of isocyanates, 100 parts by weight of polyols α, and catalyst i
0.5 parts by weight, or 2 parts by weight of the present foaming agent a dried or moistened with the water content shown in Table 3 to 100 parts by weight of the total of isocyanates and polyols α.
The same procedure as in Example 1 was carried out except that 0 part by weight was added, mixed, and cured to obtain a urethane foam. The expansion ratio and oxygen index of the obtained urethane foam were measured, and the results are shown in Table 3.
It was shown to.
【００３０】[0030]
【表３】 [Table 3]
【００３１】（実施例４）ポリオール類からなるＡ液
とイソシアネート類αからなるＢ液を別々のタンクに投
入した。Ａ液側には、本発泡剤ａをイソシアネート類と
ポリオール類の合計１００重量部に対して５重量部、
又、触媒ｉをイソシアネート類１００重量部に対して
０．５重量部添加、混合した。Ａ液を圧送圧４ｋｇ／ｃ
ｍ2 でギアポンプにより圧送し、Ｙ字管でＢ液と容積比
で１：１になるように合流した。その後、スタティック
ミキサーを通してＡ液とＢ液を混合し、吐出量１０ｋｇ
／ｍｉｎで吐出、発泡硬化させてウレタンフォームを得
た。発泡倍率は４．２倍であった。又実用上ポンプの圧
送時に液が凝集することもなく、作業性は良好であっ
た。(Example 4) Liquid A consisting of polyols and liquid B consisting of isocyanates α were put in separate tanks. On the liquid A side, 5 parts by weight of the foaming agent a was added to 100 parts by weight of the total of isocyanates and polyols.
Further, 0.5 part by weight of the catalyst i was added and mixed with 100 parts by weight of the isocyanates. Liquid A is pumped at a pressure of 4 kg / c
It was pressure-fed by a gear pump at m 2 , and joined with the liquid B in a Y-shaped tube so that the volume ratio was 1: 1. Then, mix liquid A and liquid B through a static mixer, and discharge 10 kg.
/ Min, and foamed and cured to obtain a urethane foam. The expansion ratio was 4.2 times. In addition, practically, the liquid did not aggregate during pumping, and the workability was good.
【００３２】（実施例５）Ｂ液側に本発泡剤ａをイソシ
アネート類とポリオール類の合計１００重量部に対して
３０重量部添加してスラリー状とし、Ｂ液のスラリーを
モルタルポンプにより圧送したこと以外は実施例４と同
様に行った。得られたウレタンフォームに着火しても黒
く焦げる程度で炎は発生しなかった。そのウレタンフォ
ームの酸素指数を測定したところ、難燃性を示す３０で
あった。(Example 5) 30 parts by weight of the foaming agent a was added to the liquid B side with respect to 100 parts by weight of the total of isocyanates and polyols to form a slurry, and the slurry of the liquid B was pressure fed by a mortar pump. Except for the above, the same procedure as in Example 4 was performed. Even when the obtained urethane foam was ignited, it was burnt to a black level and no flame was generated. When the oxygen index of the urethane foam was measured, it was 30 showing flame retardancy.
【００３３】[0033]
【発明の効果】本発明のアルミノケイ酸塩を使用するこ
とにより、従来の発泡剤には全くなかった自己消火性
を、発泡性と同時に付与できる。そのために、本発明で
はアルミノケイ酸塩以外の発泡剤や難燃剤を添加する必
要がなく、安価で発泡性の大きいウレタンフォームが期
待できる。EFFECT OF THE INVENTION By using the aluminosilicate of the present invention, it is possible to impart self-extinguishing properties, which were not available in conventional foaming agents, at the same time as foaming properties. Therefore, in the present invention, it is not necessary to add a foaming agent or a flame retardant other than the aluminosilicate, and an inexpensive and highly foamable urethane foam can be expected.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 川崎 栄資 群馬県高崎市小八木町306番地 シー・ア ール・ケイ株式会社内 (72)発明者 丸橋 清信 群馬県高崎市小八木町306番地 シー・ア ール・ケイ株式会社内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Sakae Kawasaki 306 Koyagi-cho, Takasaki-shi, Gunma Inside CRK K.K. Le Kay Corporation
Claims (5)
タンフォーム製造用発泡剤。1. A foaming agent for producing a urethane foam, which comprises an aluminosilicate.
重量％である請求項１記載のウレタンフォーム製造用発
泡剤。2. The water content of aluminosilicates is 1 to 20.
The foaming agent for producing a urethane foam according to claim 1, which is in a weight percentage.
媒、及び請求項１又は請求項２記載のウレタンフォーム
製造用発泡剤を含有してなるウレタン組成物。3. A urethane composition comprising an isocyanate, a polyol, a catalyst, and the foaming agent for producing a urethane foam according to claim 1 or 2.
ることを特徴とするウレタンフォームの製造方法。4. A method for producing a urethane foam, which comprises using the urethane composition according to claim 3.
イ酸塩類を含有してなるウレタンフォーム。5. A urethane foam containing the aluminosilicate according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33189095A JP3531849B2 (en) | 1995-12-20 | 1995-12-20 | Urethane composition, urethane foam, and method for producing urethane foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33189095A JP3531849B2 (en) | 1995-12-20 | 1995-12-20 | Urethane composition, urethane foam, and method for producing urethane foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09169863A true JPH09169863A (en) | 1997-06-30 |
| JP3531849B2 JP3531849B2 (en) | 2004-05-31 |
Family
ID=18248775
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33189095A Expired - Fee Related JP3531849B2 (en) | 1995-12-20 | 1995-12-20 | Urethane composition, urethane foam, and method for producing urethane foam |
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| JP (1) | JP3531849B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007039538A (en) * | 2005-08-02 | 2007-02-15 | Asahi Fiber Glass Co Ltd | Method for producing polyisocyanurate foam |
| WO2014112394A1 (en) | 2013-01-20 | 2014-07-24 | 積水化学工業株式会社 | Flame-retardant urethane resin composition |
| JP2014196476A (en) * | 2013-03-05 | 2014-10-16 | 積水化学工業株式会社 | Fire-resistant urethane resin composition |
| JP2015193839A (en) * | 2014-03-27 | 2015-11-05 | 積水化学工業株式会社 | flame-retardant urethane resin composition |
-
1995
- 1995-12-20 JP JP33189095A patent/JP3531849B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007039538A (en) * | 2005-08-02 | 2007-02-15 | Asahi Fiber Glass Co Ltd | Method for producing polyisocyanurate foam |
| JP4699834B2 (en) * | 2005-08-02 | 2011-06-15 | 旭ファイバーグラス株式会社 | Method for producing polyisocyanurate foam |
| WO2014112394A1 (en) | 2013-01-20 | 2014-07-24 | 積水化学工業株式会社 | Flame-retardant urethane resin composition |
| KR20150108410A (en) | 2013-01-20 | 2015-09-25 | 세키스이가가쿠 고교가부시키가이샤 | Flame-retardant urethane resin composition |
| US10676559B2 (en) | 2013-01-20 | 2020-06-09 | Sekisui Chemical Co., Ltd. | Flame-retardant urethane resin composition |
| US11958931B2 (en) | 2013-01-20 | 2024-04-16 | Sekisui Chemical Co., Ltd. | Flame-retardant urethane resin composition |
| JP2014196476A (en) * | 2013-03-05 | 2014-10-16 | 積水化学工業株式会社 | Fire-resistant urethane resin composition |
| JP2015193839A (en) * | 2014-03-27 | 2015-11-05 | 積水化学工業株式会社 | flame-retardant urethane resin composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3531849B2 (en) | 2004-05-31 |
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