JPS6162502A - Aqueous suspension composition of solid organic peroxide - Google Patents
Aqueous suspension composition of solid organic peroxideInfo
- Publication number
- JPS6162502A JPS6162502A JP18555684A JP18555684A JPS6162502A JP S6162502 A JPS6162502 A JP S6162502A JP 18555684 A JP18555684 A JP 18555684A JP 18555684 A JP18555684 A JP 18555684A JP S6162502 A JPS6162502 A JP S6162502A
- Authority
- JP
- Japan
- Prior art keywords
- organic peroxide
- water
- aqueous suspension
- inorganic salt
- suspension composition
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polymerization Catalysts (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、固体の有機過酸化物の水性懸濁液組成物に関
するものである。さらに詳しくは、特別の分散機械を必
要とせずに長期間安定な水性懸濁液組成物を得る為に、
比重が１以上を有する有機過酸化物と少なくとも１種以
上の中性無機塩を含有することを特徴とする水性懸濁液
組成物に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to aqueous suspension compositions of solid organic peroxides. More specifically, in order to obtain a long-term stable aqueous suspension composition without the need for a special dispersion machine,
The present invention relates to an aqueous suspension composition containing an organic peroxide having a specific gravity of 1 or more and at least one neutral inorganic salt.
有機過酸化物のうち固体の有機過酸化物は貯蔵安定性に
優れている反面、流動性がない為に取扱いに＜＜、機械
的衝撃に対しても不安定であり、特にベンゾイルペルオ
キシド（以下ＢＰＯと記す。）などは水温体品やＤＯＰ
ペースト品などとして市販されてはいるが、ここ数年来
、重合プラントにおいては触媒の自動充填化が検討され
、固体の有機過酸化物についてもポンプ輸送出来るほど
流動的で安定性の優れた水性懸濁液の開発が望まれてい
る。Among organic peroxides, solid organic peroxides have excellent storage stability, but they are difficult to handle due to their lack of fluidity and are unstable against mechanical shock. (written as BPO) are hydrothermal body products and DOP.
Although it is commercially available as a paste product, in recent years, automatic loading of catalysts has been studied in polymerization plants, and solid organic peroxides have been developed into aqueous suspensions that are fluid and stable enough to be pumped. Development of a suspension liquid is desired.
特に、ジラウロイルペルオキシド、ジデシルペルオキシ
ジカーボネート、ジ−ｔ−ブチルペルオキシイソフタレ
ートなどについては保護コロイド剤からなる水性混合物
をボールミル、ハンマーミル、らいかい機等の粉砕機で
微粒化し懸濁する方法や超音波ホモジナイザーで懸濁化
する方法が例示されているが、粒子の沈降りクリーミン
グを起こすなどの問題がある。又、ＢＰＯなど芳香族ジ
アシルペルオキシド類などは機械的衝撃により分解する
可能性もあり粉砕機等による微粒化は有効であるとは言
い難い。本発明によれば有機過酸化物を特に粉砕機等に
より微粒化しなくとも、１ケ月以上安定な水性１２組成
物を得ることが出来た。In particular, for dilauroyl peroxide, didecyl peroxydicarbonate, di-t-butyl peroxy isophthalate, etc., an aqueous mixture consisting of a protective colloid is pulverized and suspended in a pulverizer such as a ball mill, hammer mill, or mill. A method of suspending the particles using an ultrasonic homogenizer or an ultrasonic homogenizer has been exemplified, but these methods have problems such as precipitation of particles and creaming. Furthermore, aromatic diacyl peroxides such as BPO may be decomposed by mechanical impact, so it is difficult to say that atomization using a pulverizer or the like is effective. According to the present invention, it was possible to obtain an aqueous 12 composition that was stable for one month or more without particularly pulverizing the organic peroxide using a pulverizer or the like.
さらに詳しく本発明を説明するとＢＰＯのように比重が
１．３３と水より重い有機過酸化物の水性懸副液を得る
為に水に可溶な中性無機塩を添加することで水の比重を
有機過酸化物の比重と等しくし、長期間放置しても、有
機過酸化物が沈降分離することのない安定な水性懸濁液
組成物か得られたものである。To explain the present invention in more detail, in order to obtain an aqueous suspension of an organic peroxide such as BPO, which has a specific gravity of 1.33 and is heavier than water, the specific gravity of water is increased by adding a water-soluble neutral inorganic salt. is made equal to the specific gravity of the organic peroxide, and a stable aqueous suspension composition is obtained in which the organic peroxide does not settle and separate even if left for a long period of time.
本発明に用いられる固体の有機過酸化物としては比重か
１以上で、水に難溶であれば特に限定するものでなく、
具体的にはベンゾイルペルオキシド、ビス（０−メチル
ベンゾイル）ペルオキシド、ビス（ｍ−メチルベンゾイ
ルペルオキンド）、ビス（ｐ−クロルベンゾイルペルオ
キソド）等が上げられる。The solid organic peroxide used in the present invention is not particularly limited as long as it has a specific gravity of 1 or more and is sparingly soluble in water.
Specific examples include benzoyl peroxide, bis(0-methylbenzoyl)peroxide, bis(m-methylbenzoylperoquinde), and bis(p-chlorobenzoylperoxide).
次に本発明に用いられる中性無機塩としては、塩化ナト
リウム、塩化カリウム、硫酸ナトリウム、硫酸カリウム
、硫酸マグネシウム等が上げられるが特に限定するもの
ではない。又、これらは、２種以上混合して使用しても
かまわない次（こ一般に固体の有機過酸化物は水とのぬ
れが（使用される界面活性剤を少毒、添加することで解
決出来た。ここでいう界面活性剤とは、非イオン系、イ
オン系いづれの中から選んでもかまわない。具体的には
オレイン酸ソルビタンエステル、ポリオキシエチレンア
ルキルエーテル、プロピレングリコール脂肪酸エステル
、ポリビニルアルコール、ドデシルベンゼンスルホン酸
ナトリウム等々が上げられ特に限定するものではない。Next, examples of neutral inorganic salts used in the present invention include sodium chloride, potassium chloride, sodium sulfate, potassium sulfate, magnesium sulfate, etc., but are not particularly limited. In addition, these may be used in combination of two or more types. The surfactant mentioned here may be selected from nonionic and ionic types.Specifically, sorbitan oleate, polyoxyethylene alkyl ether, propylene glycol fatty acid ester, polyvinyl alcohol, and dodecyl. Examples include sodium benzenesulfonate and the like, but are not particularly limited.
次に具体的に実施例を上げて説明を行うが本発明を限定
するものではない。Next, specific examples will be given and explained, but the present invention is not limited thereto.
実施例 １
５０（ｌｅビーカ中にイオン交換水１９７グに塩化ナト
リウム５１７及び硫酸マグネシウム７８７を混合溶解し
、イオン系界面活性剤４］を添加した後、三建化工■製
品水湿体品ＢＰＯ（８０％品）を１１０２添加した。こ
の混合物をガラス棒で攪拌する事により、粘度か１００
０Ｐ（２５℃）のＢＰＯ水性懸濁組成物が得られた。こ
の組成物を室温で１ケ月放置した所、分離することな（
安定であった＠
又、実施例１のＢＰＯ水性懸濁液組成物を使用してメタ
クリル酸メチルの懸濁重合を行なった所、純品ＢＰＯと
同等の重合率が得られた。（表１）Example 1 After adding 50 (mixed and dissolved sodium chloride 517 and magnesium sulfate 787 in 197 g of ion-exchanged water in a le beaker and added ionic surfactant 4), Sanken Kako ■Product water wet product BPO ( 80% product) was added.By stirring this mixture with a glass rod, the viscosity decreased to 100%.
A BPO aqueous suspension composition of 0P (25°C) was obtained. When this composition was left at room temperature for one month, it did not separate (
Stable @ Furthermore, when suspension polymerization of methyl methacrylate was carried out using the BPO aqueous suspension composition of Example 1, a polymerization rate equivalent to that of pure BPO was obtained. (Table 1)
Claims (1)
上の中性無機塩を含有することを特徴とする水性懸濁液
組成物。An aqueous suspension composition comprising an organic peroxide having a specific gravity of 1 or more and at least one neutral inorganic salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18555684A JPS6162502A (en) | 1984-09-04 | 1984-09-04 | Aqueous suspension composition of solid organic peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18555684A JPS6162502A (en) | 1984-09-04 | 1984-09-04 | Aqueous suspension composition of solid organic peroxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6162502A true JPS6162502A (en) | 1986-03-31 |
| JPH0153961B2 JPH0153961B2 (en) | 1989-11-16 |
Family
ID=16172870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18555684A Granted JPS6162502A (en) | 1984-09-04 | 1984-09-04 | Aqueous suspension composition of solid organic peroxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6162502A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1002893A (en) * | 1961-03-22 | 1965-09-02 | Henkel & Cie Gmbh | Liquid washing agent concentrates |
| GB1173027A (en) * | 1967-08-07 | 1969-12-03 | Shell Int Research | Improvements in Mothproofing |
| JPS4837374A (en) * | 1971-09-16 | 1973-06-01 | ||
| JPS5076236A (en) * | 1973-10-23 | 1975-06-21 | ||
| JPS51125302A (en) * | 1975-03-14 | 1976-11-01 | Akzo Nv | Manufacture of aqueous suspension containing organic peroxide |
| JPS5728106A (en) * | 1980-07-25 | 1982-02-15 | Nippon Oil & Fats Co Ltd | Organic peroxide emulsified in water |
| JPS5968303A (en) * | 1982-10-12 | 1984-04-18 | Nippon Oil & Fats Co Ltd | Production of aqueous suspension of solid organic peroxide |
-
1984
- 1984-09-04 JP JP18555684A patent/JPS6162502A/en active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1002893A (en) * | 1961-03-22 | 1965-09-02 | Henkel & Cie Gmbh | Liquid washing agent concentrates |
| GB1173027A (en) * | 1967-08-07 | 1969-12-03 | Shell Int Research | Improvements in Mothproofing |
| JPS4837374A (en) * | 1971-09-16 | 1973-06-01 | ||
| JPS5076236A (en) * | 1973-10-23 | 1975-06-21 | ||
| JPS51125302A (en) * | 1975-03-14 | 1976-11-01 | Akzo Nv | Manufacture of aqueous suspension containing organic peroxide |
| JPS5728106A (en) * | 1980-07-25 | 1982-02-15 | Nippon Oil & Fats Co Ltd | Organic peroxide emulsified in water |
| JPS5968303A (en) * | 1982-10-12 | 1984-04-18 | Nippon Oil & Fats Co Ltd | Production of aqueous suspension of solid organic peroxide |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0153961B2 (en) | 1989-11-16 |
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