JPH059322A - Foaming agent composition - Google Patents

Foaming agent composition

Info

Publication number
JPH059322A
JPH059322A JP25829191A JP25829191A JPH059322A JP H059322 A JPH059322 A JP H059322A JP 25829191 A JP25829191 A JP 25829191A JP 25829191 A JP25829191 A JP 25829191A JP H059322 A JPH059322 A JP H059322A
Authority
JP
Japan
Prior art keywords
foaming agent
agent composition
azodicarbonamide
weight
magnesium
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
Application number
JP25829191A
Other languages
Japanese (ja)
Inventor
Norikazu Mayama
憲和 間山
Koji Inoue
浩二 井上
Yoichi Hata
陽一 秦
Yoshimitsu Yamawaki
良円 山脇
Saburo Sakai
三郎 酒井
Kenji Ichikawa
建次 市川
Teruo Hayashi
輝夫 林
Tomiya Isshiki
富弥 一色
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.)
Eiwa Chemical Industries Co Ltd
Original Assignee
Eiwa Chemical Industries 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 Eiwa Chemical Industries Co Ltd filed Critical Eiwa Chemical Industries Co Ltd
Priority to JP25829191A priority Critical patent/JPH059322A/en
Publication of JPH059322A publication Critical patent/JPH059322A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE:To obtain the subject foaming agent composition, applicable to nondangerous articles by a pressure vessel test for class 5 under the Fire Protection Law, excellent in dispersibility and safety and useful for rubber, etc., by adding a specific amount of a rapid decomposition inhibitor such as magnesium hydroxide to azodicarbonamide. CONSTITUTION:The objective foaming agent composition is obtained by adding and mixing 0.1-5 pts.wt., preferably 0.5-4 pts.wt. rapid decomposition inhibitor composed of one or two or more of magnesium hydroxide, basic magnesium carbonate or magnesium salt of a fatty acid with 100 pts.wt. azodicarbonamide.

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、ゴム、熱可塑性樹脂或
いはアスファルト等の発泡体を製造する為の発泡剤に関
する分野で、発泡剤の加熱分解時に急激な分解を抑制す
ることを特徴とするアゾジカルボンアミド系発泡剤組成
物に関するものであり、更に詳しくは、消防法危険物の
第5類圧力容器試験に於て、非危険物に該当する発泡剤
組成物に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foaming agent for producing a foam such as rubber, thermoplastic resin or asphalt, and is characterized by suppressing a rapid decomposition of the foaming agent during thermal decomposition. The present invention relates to an azodicarbonamide-based foaming agent composition, and more specifically, to a foaming agent composition which is a non-dangerous substance in the Class 5 Pressure Vessel Test of Dangerous Goods of the Fire Service Act.

【0002】[0002]

【従来の技術】従来よりアゾジカルボンアミドの分解助
剤としては、亜鉛華等が使用されているが、また特公平
3−2894号に脂肪酸亜鉛と水酸化亜鉛を併用する方
法や特公昭60−10539号に炭素数6以下の有機カ
ルボン酸亜鉛を添加し、発泡用塩化ビニル系樹脂組成物
とする方法等が開示されている。しかし、これら公知の
亜鉛化合物をアゾジカルボンアミドと併用した場合、単
に分解温度は低下するが、急激な分解を抑制する効果は
無く、単に低温域にスライドして低温分解をするのみ
で、全体の急激な分解性の改善は出来ず、危険物確認試
験で危険物に該当する。
2. Description of the Related Art Zinc white or the like has been conventionally used as a decomposition aid for azodicarbonamide. However, in Japanese Examined Patent Publication No. 3-2894, a method in which fatty acid zinc and zinc hydroxide are used in combination and JP-B-60- No. 10539 discloses a method for adding a zinc organic carboxylate having 6 or less carbon atoms to obtain a vinyl chloride resin composition for foaming. However, when these known zinc compounds are used in combination with azodicarbonamide, the decomposition temperature is simply lowered, but there is no effect of suppressing the rapid decomposition, and it is simply slid to a low temperature region to perform low temperature decomposition, It cannot be rapidly decomposed and is classified as a dangerous substance in the dangerous substance confirmation test.

【0003】また、マグネシウム化合物に関する内容と
しては、特開昭52−40577号に発泡性の熱可塑性
樹脂において、アゾジカルボンアミドに対して5〜10
0重量%のマグネシウム化合物を添加する発泡成形用熱
可塑性樹脂組成物や、特開昭50−77472号に熱可
塑性樹脂に発泡剤としてアゾジカルボンアミドを添加し
て、押出又は射出成形機で発泡成形品を製造する方法に
おいて、該熱可塑性樹脂に対しステアリン酸マグネシウ
ムを混合する方法が開示されている。しかし、これ等は
上記の様に熱可塑性樹脂にアゾジカルボンアミドを添加
して発泡成形をする方法に於て、水酸化マグネシウム、
塩基性炭酸マグネシウム或いはステアリン酸マグネシウ
ムを混合することを特徴とする、熱可塑性樹脂発泡成形
物の製造方法である。即ち、アゾジカルボンアミドと水
酸化マグネシウム、塩基性炭酸マグネシウム或いはステ
アリン酸マグネシウムを混合する発泡剤組成物に関する
内容は現在までにない。また、アゾジカルボンアミドに
二酸化珪素等の充填剤を数パーセント添加しても危険物
確認試験で外れる傾向は少ない。従って需要家より、従
来の使用条件を殆ど変化せずに非危険物物質となるアゾ
ジカルボンアミド系発泡剤組成物の開発が強く要望され
ていた。
Regarding the content of the magnesium compound, JP-A-52-40577 discloses a foamable thermoplastic resin containing 5 to 10 parts of azodicarbonamide.
Thermoplastic resin composition for foam molding to which 0% by weight of magnesium compound is added, or azodicarbonamide as a foaming agent is added to thermoplastic resin in JP-A-50-77472, and foam molding is performed by an extrusion or injection molding machine. As a method for producing a product, a method of mixing magnesium stearate with the thermoplastic resin is disclosed. However, in the method of foam molding by adding azodicarbonamide to a thermoplastic resin as described above, magnesium hydroxide,
A method for producing a thermoplastic resin foam-molded article, which comprises mixing basic magnesium carbonate or magnesium stearate. That is, there is no content of a foaming agent composition in which azodicarbonamide and magnesium hydroxide, basic magnesium carbonate or magnesium stearate are mixed. Further, even if a few percent of filler such as silicon dioxide is added to azodicarbonamide, there is little tendency to be out of the dangerous substance confirmation test. Therefore, there has been a strong demand from consumers for the development of an azodicarbonamide-based blowing agent composition which is a non-dangerous substance substance with almost no change in the conventional use conditions.

【0004】危険物の確認試験とは1989年の消防法
一部改正により、自己分解性物質は示差走査熱量(以
下、DSCと省略)測定法による発熱量と、圧力容器
試験での測定基準で確認、判定される事となり、純アゾ
ジカルボンアミドはのDSC測定値は該当しないが、
の圧力容器試験(オリフィス径1.0mm)の測定値
で危険物第五類の2種に該当すると認定された。これは
アゾジカルボンアミドの製造、貯蔵、輸送及び需要家で
の取扱い等において、危険物として対応する必要が生じ
る事である。
What is the confirmation test for dangerous substances? Due to the partial revision of the Fire Service Act of 1989, self-decomposable substances are measured by the calorific value by the differential scanning calorific value (hereinafter abbreviated as DSC) measurement method and the measurement standard in the pressure vessel test. It will be confirmed and judged, but the DSC measurement value of pure azodicarbonamide does not apply,
The pressure vessel test (orifice diameter 1.0 mm) measurement value was confirmed to correspond to the two types of dangerous goods category 5. This is because it is necessary to deal with azodicarbonamide as a dangerous substance in the production, storage, transportation and handling by customers.

【0005】[0005]

【発明が解決すべき課題】発明者は前記従来技術での問
題点を解決すべく、市販の安価で安全な化合物をアゾジ
カルボンアミドに添加することによって、加熱分解開始
温度を低温域に早め、且つ急激な加熱分解反応を抑制す
る添加剤について鋭意研究を重ねた結果、アゾジカルボ
ンアミドに水酸化マグネシウム、塩基性炭酸マグネシウ
ム或いは脂肪酸マグネシウムを少量添加することによっ
て、加熱分解開始温度を低温域に早め、且つ急激な加熱
分解を抑制し、上記圧力容器試験において、非危険物組
成物とすることを見出した。この少量の水酸化マグネシ
ウム、塩基性炭酸マグネシウム或いは脂肪酸マグネシウ
ムからなる急激分解抑制剤を添加することは、単なる希
釈ではなく、加熱分解開始温度を低温域に早め、且つ急
激な加熱分解反応を抑制し、分解速度をコントロールす
るものである。更に、この発泡剤組成物は貯蔵安定性も
良く、使用時はゴムあるいは樹脂への分散性も良く、発
泡体を製造した場合、着色汚染も無く、均一微細な気泡
となるという驚くべき効果を見出し、本発明を完成する
に至った。
In order to solve the above problems in the prior art, the inventor has added a commercially available inexpensive and safe compound to azodicarbonamide to accelerate the thermal decomposition initiation temperature to a low temperature range, In addition, as a result of intensive studies on additives that suppress a rapid thermal decomposition reaction, by adding a small amount of magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid to azodicarbonamide, the thermal decomposition start temperature can be accelerated to a low temperature range. In addition, it was found that the composition was a non-dangerous substance composition in the above pressure vessel test by suppressing rapid thermal decomposition. Adding a small amount of this rapid decomposition inhibitor consisting of magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid does not simply dilute, but accelerates the thermal decomposition start temperature to a low temperature range and suppresses the rapid thermal decomposition reaction. , Which controls the decomposition rate. Further, this foaming agent composition has good storage stability, good dispersibility in rubber or resin at the time of use, and when the foam is produced, it has no surprising effect that uniform fine bubbles are formed without coloring and contamination. Heading out, the present invention has been completed.

【0006】[0006]

【課題を解決するための手段】発明者はアゾジカルボン
アミドに水酸化マグネシウム、塩基性炭酸マグネシウム
或いは脂肪酸マグネシウムからなる急激分解抑制剤を添
加した発泡剤組成物の提供を目的とするものである。以
下、本発明を詳細に説明する。本発明に用いるアゾジカ
ルボンアミドは必ずしも限定されるものでは無く、ヒド
ラゾジカルボンアミドを塩素、次亜塩素酸塩、重クロム
酸塩或いは過酸化水素等で酸化した従来公知の方法で製
造された、アゾジカルボンアミドである。また、ここで
いう水酸化マグネシウム、塩基性炭酸マグネシウム或い
は脂肪酸マグネシウムとは白色の粉末であり、脂肪酸マ
グネシウムとはオレイン酸マグネシウム、ステアリン酸
マグネシウム、パルミチン酸マグネシウム、ミリスチン
酸マグネシウム、ラウリン酸マグネシウム、オクチル酸
マグネシウム、酒石酸マグネシウム、クエン酸マグネシ
ウム等のカルボン酸のマグネシウム塩である。粒度は2
0μ以下、好ましくは10μ以下の微粉末である。
DISCLOSURE OF THE INVENTION The inventor aims to provide a foaming agent composition in which a rapid decomposition inhibitor made of magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid is added to azodicarbonamide. Hereinafter, the present invention will be described in detail. The azodicarbonamide used in the present invention is not necessarily limited, and is produced by a conventionally known method of oxidizing hydrazodicarbonamide with chlorine, hypochlorite, dichromate, hydrogen peroxide or the like, It is azodicarbonamide. The magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid referred to herein is a white powder, and the fatty acid magnesium is magnesium oleate, magnesium stearate, magnesium palmitate, magnesium myristate, magnesium laurate, octyl acid. It is a magnesium salt of a carboxylic acid such as magnesium, magnesium tartrate or magnesium citrate. Grain size is 2
It is a fine powder of 0 μ or less, preferably 10 μ or less.

【0007】本発明の発泡剤組成物は前記の如きアゾジ
カルボンアミドに水酸化マグネシウム、塩基性炭酸マグ
ネシウム或いは脂肪酸マグネシウムを添加してなるもの
であり、その組成割合は必ずしも限定されるものではな
いが、通常アゾジカルボンアミド100重量部に対して
水酸化マグネシウム、塩基性炭酸マグネシウム或いは脂
肪酸マグネシウムの1種或いは2種以上の添加量合計が
0.1重量部〜5重量部、好ましくは0.5〜4重量
部、より好ましくは1〜3重量部である。
The foaming agent composition of the present invention is prepared by adding magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid to the azodicarbonamide as described above, and the composition ratio thereof is not necessarily limited. Usually, the total addition amount of one or more of magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid is 0.1 parts by weight to 5 parts by weight, preferably 0.5 to 100 parts by weight with respect to 100 parts by weight of azodicarbonamide. 4 parts by weight, more preferably 1 to 3 parts by weight.

【0008】本発明の発泡剤組成物の使用は発泡すべき
合成樹脂の軟化温度、劣化温度等の諸性質により決めら
れるが、従来の所定の温度で加工を行なって、本発明の
発泡剤組成物を使用する場合、組成物の分解が所定の温
度で分解し、従来条件を変更することなく、同一条件で
容易に使用できるという特徴を有する。アゾジカルボン
アミド100重量部に対する水酸化マグネシウム、塩基
性炭酸マグネシウム或いは脂肪酸マグネシウムからなる
急激分解抑制剤の添加量は0.1重量部以下では発泡剤
の急激な分解を抑制する効果が低く、5重量部以上の添
加量では急激な分解を抑制する効果は充分に達成出来る
が、更に述べれば樹脂成形の使用時に従来と同量の配合
では発泡倍率が低下し好ましくない。
The use of the foaming agent composition of the present invention is determined by various properties such as the softening temperature and the deterioration temperature of the synthetic resin to be foamed, and the foaming agent composition of the present invention is processed at a predetermined temperature. When the product is used, the composition is decomposed at a predetermined temperature and can be easily used under the same conditions without changing the conventional conditions. When the addition amount of the rapid decomposition inhibitor consisting of magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid is 0.1 parts by weight or less relative to 100 parts by weight of azodicarbonamide, the effect of suppressing the rapid decomposition of the foaming agent is low and 5 parts by weight. The effect of suppressing rapid decomposition can be sufficiently achieved with an addition amount of at least 1 part by weight, but further it is not preferable to use the same amount as in the conventional case when the resin is used for molding, because the expansion ratio decreases.

【0009】これ等の組成物中に公知の有機発泡剤、ジ
ニトロソペンタメチレンテトラアミン、オキシビス(ベ
ンゼンスルホニルヒドラジド)、トルエンスルホニルヒ
ドラジド、トルエンスルホニルセミカルバジド、アゾビ
スイソブチロニトリル、尿素系助剤等及び充填剤等を併
用して配合することもできる。
In these compositions, known organic foaming agents, dinitrosopentamethylenetetramine, oxybis (benzenesulfonylhydrazide), toluenesulfonylhydrazide, toluenesulfonylsemicarbazide, azobisisobutyronitrile, urea auxiliaries, etc. It is also possible to use a filler and the like in combination.

【0010】本発明の発泡剤組成物の調整方法は特に限
定されるものでは無く、例えばヘンシエルミキサー、ス
ーパミキサーの様な高速ミキサー、リボンブレンダー、
バンバリミキサー、ボールミル等の混合器中にアゾジカ
ルボンアミドを入れ、これに水酸化マグネシウム、塩基
性炭酸マグネシウム或いは脂肪酸マグネシウムを混合処
理するものである。また、乾燥時に混合させることも出
来る。
The method for preparing the foaming agent composition of the present invention is not particularly limited, and for example, a high speed mixer such as a Hensiel mixer or a super mixer, a ribbon blender,
Azodicarbonamide is put in a mixer such as a Banbury mixer or a ball mill, and magnesium hydroxide, basic magnesium carbonate or fatty acid magnesium is mixed and treated. It is also possible to mix them at the time of drying.

【0011】本発明の発泡剤組成物は各種合成樹脂の発
泡体成形に用いることができる。この様な合成樹脂とし
ては熱可塑性樹脂として、例えば塩化ビニル樹脂、塩化
ビニル共重合樹脂、ポルエチレン、ポリプロピレン、ポ
リオレフイン共重合樹脂、ABS樹脂、ポリカーボネー
ト、等に使用出来る。これら合成樹脂に対して用いる本
発明の発泡剤組成物の使用量は発泡製品の成形方法、発
泡倍率によって決まるもので、塩化ビニル樹脂発泡体製
造の場合は樹脂に対して2〜5重量部、架橋ポリオレフ
イン発泡体の場合は樹脂に対して3〜20重量部であ
り、射出成形法、押出成型法の場合の樹脂或いはアスフ
ァルトに対しては0.1〜5重量部程度である。
The foaming agent composition of the present invention can be used for molding foams of various synthetic resins. As such a synthetic resin, a thermoplastic resin such as vinyl chloride resin, vinyl chloride copolymer resin, polyethylene, polypropylene, polyolefin copolymer resin, ABS resin or polycarbonate can be used. The amount of the foaming agent composition of the present invention used for these synthetic resins depends on the molding method of the foamed product and the expansion ratio, and in the case of producing a vinyl chloride resin foam, 2 to 5 parts by weight relative to the resin, In the case of the crosslinked polyolefin foam, it is 3 to 20 parts by weight with respect to the resin, and in the case of the injection molding method or the extrusion molding method, it is about 0.1 to 5 parts by weight with respect to the resin or asphalt.

【0012】[0012]

【実施例】以下、実施例により本発明を一層詳細に説明
をする。なお、発泡剤組成物の急激な加熱分解反応の抑
制性の比較として、圧力容器試験及び発泡体の発泡倍率
等について、つぎの様にして測定した。 (1) 圧力容器試験装置(蔵持科学機器製作所製)を
用いて測定する。圧力容器(ステンレス鋼製)内容量2
00cmにオリフィス板(厚さ2mm・細孔径1.0
mm)を取り付けた装置に、Al製試料容器に測定試料
5gを秤量して入れ、アルミニウム製破裂板をセットし
て加熱、測定を10回行ない、その内5/10回以上の
破裂をすると危険物判定となる。
The present invention will be described in more detail with reference to the following examples. As a comparison of the ability of the foaming agent composition to suppress the rapid thermal decomposition reaction, the pressure vessel test and the expansion ratio of the foam were measured as follows. (1) Measurement is performed using a pressure vessel test device (Kurachi Scientific Equipment Co., Ltd.). Pressure vessel (stainless steel) content 2
Orifice plate 00cm 2 (thickness 2 mm · pore diameter 1.0
(mm) is attached to a device equipped with an aluminum (5 mm) sample, 5 g of the measurement sample is weighed and placed in an Al sample container, an aluminum rupture plate is set, heating and measurement are performed 10 times, and it is dangerous to rupture 5/10 times or more. It becomes a thing judgment.

【0013】[0013]

【実施例1】アゾジカルボンアミド100重量部と水酸
化マグネシウム4重量部をヘンシエルミキサーに投入、
室温で5分間混合して発泡剤組成物を得た。この発泡剤
組成物について前記測定法に従って圧力容器試験を測定
し表1に示す。得られた発泡剤組成物は参考例1−1に
使用した。
Example 1 100 parts by weight of azodicarbonamide and 4 parts by weight of magnesium hydroxide were put into a Hensiel mixer,
The mixture was mixed at room temperature for 5 minutes to obtain a foaming agent composition. A pressure vessel test was performed on this foaming agent composition according to the above-mentioned measurement method, and the results are shown in Table 1. The resulting foaming agent composition was used in Reference Example 1-1.

【0014】[0014]

【実施例2】アゾジカルボンアミド100重量部と塩基
性炭酸マグネシウム5重量部をヘンシエルミキサーに投
入、室温で5分間混合して発泡剤組成物を得た。この発
泡剤組成物について前記測定法に従って圧力容器試験を
測定し表1に示す。得られた発泡剤組成物は参考例1−
2に使用した。
Example 2 100 parts by weight of azodicarbonamide and 5 parts by weight of basic magnesium carbonate were put into a Henschel mixer and mixed at room temperature for 5 minutes to obtain a foaming agent composition. A pressure vessel test was performed on this foaming agent composition according to the above-mentioned measurement method, and the results are shown in Table 1. The resulting foaming agent composition is shown in Reference Example 1-
Used for 2.

【0015】[0015]

【実施例3】アゾジカルボンアミド100重量部とステ
アリン酸マグネシウム5重量部をヘンシエルミキサーに
投入、室温で5分間混合して発泡剤組成物を得た。この
発泡剤組成物について前記測定法に従って圧力容器試験
を測定し表1に示す。得られた発泡剤組成物は参考例1
−3に使用した。
Example 3 100 parts by weight of azodicarbonamide and 5 parts by weight of magnesium stearate were charged into a Henschel mixer and mixed at room temperature for 5 minutes to obtain a foaming agent composition. A pressure vessel test was performed on this foaming agent composition according to the above-mentioned measurement method, and the results are shown in Table 1. The resulting foaming agent composition is shown in Reference Example 1
-3 was used.

【0016】[0016]

【比較例1】アゾジカルボンアミドの無処理品の圧力容
器試験を測定し、結果を表1に示す。アゾジカルボンア
ミドの無処理品は比較参考例1−1に使用した。
Comparative Example 1 A pressure vessel test of an untreated product of azodicarbonamide was measured, and the results are shown in Table 1. The untreated azodicarbonamide was used in Comparative Reference Example 1-1.

【0017】[0017]

【比較例2】アゾジカルボンアミド100重量部に二酸
化珪素2重量部をヘンシエルミキサーに投入、室温で5
分間混合して発泡剤組成物を得た。この発泡剤組成物に
ついて前記測定法に従って圧力容器試験を測定し表1に
示す。得られた発泡剤組成物は比較参考例1−2に使用
した。
Comparative Example 2 100 parts by weight of azodicarbonamide and 2 parts by weight of silicon dioxide were added to a Hensiel mixer, and the mixture was stirred at room temperature for 5 hours.
Mixing for minutes gave a foaming agent composition. A pressure vessel test was performed on this foaming agent composition according to the above-mentioned measurement method, and the results are shown in Table 1. The resulting foaming agent composition was used in Comparative Reference Example 1-2.

【0018】[0018]

【比較例3】アゾジカルボンアミド100重量部に二酸
化珪素5重量部をヘンシエルミキサーに投入、室温で5
分間混合して発泡剤組成物を得た。この発泡剤組成物に
ついて前記測定法に従って圧力容器試験を測定し表1に
示す。得られた発泡剤組成物は比較参考例1−3に使用
した。
Comparative Example 3 5 parts by weight of silicon dioxide was added to 100 parts by weight of azodicarbonamide in a Hensiel mixer, and the mixture was stirred at room temperature for 5 hours.
Mixing for minutes gave a foaming agent composition. A pressure vessel test was performed on this foaming agent composition according to the above-mentioned measurement method, and the results are shown in Table 1. The resulting foaming agent composition was used in Comparative Reference Examples 1-3.

【0019】[0019]

【参考例1−1】エチレン−酢酸ビニル共重合体をロー
ル温度90〜100℃で加熱混練しながら下記配合物を
練り込み、これを発泡体に製造するために厚み15mm
のシートにして取り出した後、200×200×15m
mの金型で蒸気圧6.5Kg/cmで16分間、ゲー
ジ圧150Kg/cmの圧力をかけ、加熱をした後除
圧をして発泡体を得た。得られた発泡体は表面平滑で、
気泡は均一微細であった。発泡体の密度及び硬度は表1
に示す。密度はスキン層をスライスして測定し、硬度は
C型(スポンジ用)高分子計器(株)製で測定をした。 配合 エチレン−酢酸ビニル共重合体(MI.1.5) 100. 重量部 ステアリン酸 0.3重量部 亜鉛華 2 重量部 ジクミルパオキサイド 0.9重量部 実施例1の発泡剤組成物 5 重量部
[Reference Example 1-1] An ethylene-vinyl acetate copolymer was kneaded under heating at a roll temperature of 90 to 100 ° C. while kneading the following composition, and a thickness of 15 mm in order to produce this into a foam.
200 x 200 x 15m after taking out the sheet
16 minutes at a vapor pressure 6.5Kg / cm 2 in a mold of m, a pressure of gauge pressure 150 Kg / cm 2, to obtain a foam with a decompression after heating. The obtained foam has a smooth surface,
The bubbles were uniform and fine. The density and hardness of the foam are shown in Table 1.
Shown in. The density was measured by slicing the skin layer, and the hardness was measured by C-type (for sponge) Kobunshi Keiki Co., Ltd. Blending ethylene-vinyl acetate copolymer (MI.1.5) 100. Parts by weight stearic acid 0.3 parts by weight zinc white 2 parts by weight dicumyl peroxide 0.9 parts by weight blowing agent composition of Example 1 5 parts by weight

【0020】[0020]

【参考例1−2】参考例1の条件で実施例2の発泡剤組
成物を用い発泡体を製造し、得られた発泡体の密度及び
硬度を測定し表1に示す。
[Reference Example 1-2] A foam was produced using the foaming agent composition of Example 2 under the conditions of Reference Example 1, and the density and hardness of the obtained foam were measured and shown in Table 1.

【0021】[0021]

【参考例1−3】参考例1の条件で実施例3の発泡剤組
成物を用い発泡体を製造し、得られた発泡体の密度及び
硬度を測定し表1に示す。
[Reference Example 1-3] A foam was produced using the foaming agent composition of Example 3 under the conditions of Reference Example 1, and the density and hardness of the obtained foam were measured and shown in Table 1.

【0022】[0022]

【比較参考例1−1】参考例1の条件で比較例1のアゾ
ジカルボンアミドを用い発泡体を製造し、得られた発泡
体の密度及び硬度を測定し表1に示す。
[Comparative Reference Example 1-1] A foam was produced using the azodicarbonamide of Comparative Example 1 under the conditions of Reference Example 1, and the density and hardness of the obtained foam were measured and shown in Table 1.

【0023】[0023]

【比較参考例1−2】参考例1の条件で比較例2の発泡
剤組成物を用い発泡体を製造し、得られた発泡体の密度
及び硬度を測定し表1に示す。
[Comparative Reference Example 1-2] A foam was produced using the foaming agent composition of Comparative Example 2 under the conditions of Reference Example 1, and the density and hardness of the obtained foam were measured and shown in Table 1.

【0024】[0024]

【比較参考例1−3】参考例1の条件で比較例3の発泡
剤組成物を用い発泡体を製造し、得られた発泡体の密度
及び硬度を測定し表1に示す。
[Comparative Reference Example 1-3] A foam was produced using the foaming agent composition of Comparative Example 3 under the conditions of Reference Example 1, and the density and hardness of the obtained foam were measured and shown in Table 1.

【0025】[0025]

【表1】 [Table 1]

【0026】[0026]

【実施例4】アゾジカルボンアミド100重量部を流動
乾燥機で乾燥後、ステアリン酸マグネシウム4重量部を
流動乾燥機に投入、流動混合して発泡剤組成物を得た。
この発泡剤組成物について前記測定法に従って圧力容器
試験を測定し表2に示す。得られた発泡剤組成物は参考
例2に使用した。
Example 4 100 parts by weight of azodicarbonamide was dried by a fluid dryer, and then 4 parts by weight of magnesium stearate was put into the fluid dryer and mixed by fluidization to obtain a foaming agent composition.
A pressure vessel test was conducted on the foaming agent composition according to the above-mentioned measuring method, and the results are shown in Table 2. The resulting foaming agent composition was used in Reference Example 2.

【0027】[0027]

【比較例4】アゾジカルボンアミドの無処理品の圧力容
器試験を測定し、結果を表2に示す。アゾジカルボンア
ミドの無処理品は比較参考例2−1に使用した。
Comparative Example 4 A pressure vessel test of an untreated azodicarbonamide was measured, and the results are shown in Table 2. The untreated azodicarbonamide was used in Comparative Reference Example 2-1.

【0028】[0028]

【比較例5】アゾジカルボンアミド100重量部に二酸
化珪素4重量部をヘンシエルミキサーに投入、室温で5
分間混合して発泡剤組成物を得た。この発泡剤組成物に
ついて前記測定法に従って圧力容器試験を測定し表2に
示す。得られた発泡剤組成物は比較参考例2−2に使用
した。
COMPARATIVE EXAMPLE 5 4 parts by weight of silicon dioxide was added to 100 parts by weight of azodicarbonamide in a Hensiel mixer, and the mixture was stirred at room temperature for 5 hours.
Mixing for minutes gave a foaming agent composition. A pressure vessel test was conducted on the foaming agent composition according to the above-mentioned measuring method, and the results are shown in Table 2. The resulting foaming agent composition was used in Comparative Reference Example 2-2.

【0029】[0029]

【参考例2】下記配合物を均一に混練後、この組成物を
離型紙上に0.5mmの厚さに延し、ギャーオーブンで
150℃、1分間加熱し、キュアーシートを作成した。
得られたシートを200℃に保った、ギャーオーブンに
入れ、発泡をした。得られた発泡シートは表面平滑で、
気泡は均一微細であった。発泡倍率は厚みで測定し表2
に示す。 配合 ポリ塩化ビニル(Geon131) 100重量部 DOP 70重量部 安定剤 3重量部 実施例4の発泡剤組成物 3重量部
Reference Example 2 After uniformly kneading the following composition, this composition was spread on a release paper to a thickness of 0.5 mm and heated in a Gar oven at 150 ° C. for 1 minute to prepare a cure sheet.
The obtained sheet was placed in a Gar oven kept at 200 ° C. to foam. The obtained foamed sheet has a smooth surface,
The bubbles were uniform and fine. The foaming ratio is measured by the thickness in Table 2
Shown in. Blend Polyvinyl chloride (Geon 131) 100 parts by weight DOP 70 parts by weight Stabilizer 3 parts by weight Foaming agent composition of Example 4 3 parts by weight

【0030】[0030]

【比較参考例2−1】参考例2の条件で比較例4のアゾ
ジカルボンアミドを用い発泡体を製造し、得られた発泡
体の発泡倍率を測定し表2に示す。
[Comparative Reference Example 2-1] A foam was produced using the azodicarbonamide of Comparative Example 4 under the conditions of Reference Example 2, and the foaming ratio of the obtained foam was measured and shown in Table 2.

【0031】[0031]

【比較参考例2−2】参考例2の条件で比較例5の発泡
剤組成物を用い発泡体を製造し、得られた発泡体の発泡
倍率を測定し表2に示す。
[Comparative Reference Example 2-2] A foam was produced using the foaming agent composition of Comparative Example 5 under the conditions of Reference Example 2, and the expansion ratio of the obtained foam was measured and is shown in Table 2.

【0032】[0032]

【表2】 [Table 2]

【0033】[0033]

【発明の効果】表1及び表2の実施例、比較例、参考
例、比較参考例に見られる如く、アゾジカルボンアミド
に水酸化マグネシウム、塩基性炭酸マグネシウム或いは
脂肪酸マグネシウムの1種類或いは2種類を併用添加、
混合処理をする事により、アゾジカルボンアミドの加熱
分解開始温度を低温域に早め、且つ急激な加熱分解を抑
制し、前記圧力容器試験において、非危険物の組成物と
なる上に、樹脂との均一分散性も改良され、発泡成形時
の成形条件は発泡剤の処理以前のままの成形条件で変更
をする必要がなく、発泡体気泡は均一微細となつた。
As shown in Examples, Comparative Examples, Reference Examples and Comparative Reference Examples of Tables 1 and 2, azodicarbonamide may be supplemented with one or two types of magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid. Combined addition,
By performing the mixing treatment, the thermal decomposition initiation temperature of azodicarbonamide is accelerated to a low temperature range, and rapid thermal decomposition is suppressed, and in the pressure vessel test, it becomes a non-dangerous substance composition and Uniform dispersibility was also improved, and it was not necessary to change the molding conditions during foam molding under the same molding conditions as before the treatment with the foaming agent, and the foam cells were uniformly fine.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 山脇 良円 愛知県半田市日東町1番地8 永和化成工 業株式会社衣浦工場内 (72)発明者 酒井 三郎 京都市南区吉祥院池田南町1番地 永和化 成工業株式会社内 (72)発明者 市川 建次 京都市南区吉祥院池田南町1番地 永和化 成工業株式会社内 (72)発明者 林 輝夫 愛知県半田市日東町1番地8 永和化成工 業株式会社衣浦工場内 (72)発明者 一色 富弥 愛知県半田市日東町1番地8 永和化成工 業株式会社衣浦工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryoen Yamawaki 1-8 Nitto-cho, Handa-shi, Aichi Nagawa Chemical Industry Co., Ltd. Kinuura factory (72) Inventor Saburo Sakai 1-kichi, Ikedaminami-cho, Kichijoin, Minami-ku, Kyoto Nagakazu Kasei Kogyo Co., Ltd. (72) Inventor Kenji Ichikawa 1 Kichishoin Ikeda-Minami-cho, Minami-ku, Kyoto Nagawa Kasei Kogyo Co., Ltd. (72) Inventor Teruo Hayashi 1 Nitto-cho, Handa-shi, Aichi 8 Eiwa Co., Ltd. Kinuura Plant Co., Ltd. (72) Inventor Tomiya Tomiya 8, Nitto-cho, Handa City, Aichi Prefecture 8 Eiwa Chemical Industry Co., Ltd. Kinuura Plant

Claims (1)

【特許請求の範囲】 【請求項1】 アゾジカルボンアミド100重量部に水
酸化マグネシウム、塩基性炭酸マグネシウム或いは脂肪
酸マグネシウムの1種又は2種以上からなる急激分解抑
制剤の0.1〜5重量部を添加し、消防法危険物第五類
の圧力容器試験で非危険物に該当する事を特徴とする発
泡剤組成物。
Claim: What is claimed is: 1. 0.1 to 5 parts by weight of a rapid decomposition inhibitor comprising 100 parts by weight of azodicarbonamide and one or more of magnesium hydroxide, basic magnesium carbonate or magnesium fatty acid. A foaming agent composition characterized by being added as a non-dangerous substance in the pressure vessel test of Class 5 Dangerous Goods of the Fire Service Act.
JP25829191A 1991-07-02 1991-07-02 Foaming agent composition Pending JPH059322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25829191A JPH059322A (en) 1991-07-02 1991-07-02 Foaming agent composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25829191A JPH059322A (en) 1991-07-02 1991-07-02 Foaming agent composition

Publications (1)

Publication Number Publication Date
JPH059322A true JPH059322A (en) 1993-01-19

Family

ID=17318217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25829191A Pending JPH059322A (en) 1991-07-02 1991-07-02 Foaming agent composition

Country Status (1)

Country Link
JP (1) JPH059322A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010052972A1 (en) * 2008-11-07 2010-05-14 積水化学工業株式会社 Thermally expandable microcapsule and foam-molded article
JP2013091769A (en) * 2011-10-04 2013-05-16 Nitto Denko Corp Foaming composition for filling and sealing, foaming member for filling and sealing, foam for filling and sealing, and filling method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010132860A (en) * 2008-08-07 2010-06-17 Sekisui Chem Co Ltd Thermally expandable microcapsule and foam-molded article
WO2010052972A1 (en) * 2008-11-07 2010-05-14 積水化学工業株式会社 Thermally expandable microcapsule and foam-molded article
JP2013091769A (en) * 2011-10-04 2013-05-16 Nitto Denko Corp Foaming composition for filling and sealing, foaming member for filling and sealing, foam for filling and sealing, and filling method thereof

Similar Documents

Publication Publication Date Title
US5009809A (en) High temperature endothermic blowing agents compositions and applications
US5009810A (en) Endothermic blowing agents compositions and applications
JPS62153326A (en) Crosslinkable expandable polyolefin resin composition having antistatic property
KR840001745B1 (en) Expandable polyolefin compositions
JPS62153327A (en) Expansible polyolefin composition using isobutane foaming agent and its production
JP2003504439A (en) Crosslinked foam of ethylene vinyl acetate copolymer and acid copolymer
WO2005111125A2 (en) Cross-linked polypropylene resins, method of making same and articles formed therefrom
JPH05503545A (en) Polyolefin compositions comprising glycerol monoesters of C↓2↓0-↓2↓4 fatty acids and foamed articles made therefrom
US5106534A (en) Endothermic blowing agents compositions and applications
US3340209A (en) Activated azodicarbonamide
JPH059322A (en) Foaming agent composition
JPH05339414A (en) Azodicarbonamide foaming agent composition
US5137655A (en) High temperature endothermic blowing agents compositions and applications
JPH059321A (en) Azodicarbonamide-based foaming agent composition
US5250224A (en) Foamed products containing endothermic blowing agents and processes
JP3012950B2 (en) Blowing agent composition
US4255526A (en) Method of producing a moisture- and heat-resistant flexible polyurethane foam
JPH0551477A (en) Azodicarbonamide-based foaming agent composition
JPWO2004014992A1 (en) Expandable styrenic resin particles, pre-expanded particles using the same, and expanded molded articles
JP3532791B2 (en) Foaming composition and automotive interior material
JPH1191049A (en) Manufacture of wall paper
JP3279665B2 (en) Crosslinked vinyl chloride resin foam and method for producing the same
JPS60163939A (en) Foamed vinyl chloride resin molding and its preparation
US5306736A (en) Endothermic blowing agents for surface migration of components in foamed products, compositions and applications
JP3565815B2 (en) Conductive cross-linked polyethylene foam and method for producing the same