JP4891540B2 - Biocide composition with improved low temperature properties - Google Patents

Biocide composition with improved low temperature properties Download PDF

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JP4891540B2
JP4891540B2 JP2004335092A JP2004335092A JP4891540B2 JP 4891540 B2 JP4891540 B2 JP 4891540B2 JP 2004335092 A JP2004335092 A JP 2004335092A JP 2004335092 A JP2004335092 A JP 2004335092A JP 4891540 B2 JP4891540 B2 JP 4891540B2
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biocide composition
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禎章 佐藤
明 遠山
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Toho Chemical Industry Co Ltd
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本発明は、低温で長期間流動性を確保でき、さらにエマルションを調製した場合、その乳化性に優れる植物油と界面活性剤を含む殺生剤組成物に関する。 The present invention relates to a biocide composition comprising a vegetable oil and a surfactant that can ensure fluidity for a long period of time at a low temperature and further have excellent emulsifiability when an emulsion is prepared.

世の中の様々な工業製品の多くは、有機溶剤が使われているが、近年、安全性や環境に対する配慮から有機溶剤の代わりに安全性の高い植物油を利用する試みが盛んになっている。 Many of the various industrial products in the world use organic solvents, but in recent years, attempts have been actively made to use highly safe vegetable oils instead of organic solvents for safety and environmental considerations.

植物油は溶媒・分散媒として主に食品や化粧品等の特定分野で利用されてきたが、近年、環境保護や安全性重視の観点から農薬、環境防疫剤、金属加工油剤、離型剤、繊維油剤等の分野でも植物油使用のニーズが高まっている。 Vegetable oil has been used as a solvent and dispersion medium mainly in specific fields such as food and cosmetics. In recent years, from the viewpoint of environmental protection and safety, agricultural chemicals, environmental protection agents, metal processing oils, mold release agents, fiber oils The need to use vegetable oil is also increasing in these fields.

特に殺生剤はこれまでその活性成分を芳香族系炭化水素であるキシレン、メチルナフタレン、ケロシンや、極性の高いメチルピロリドン、イソホロン、シクロヘキサノン等に溶解し、更に、乳化剤を添加して乳剤を構成したが、これら有機溶媒は人畜への毒性が問題視されることや、植物に対して薬害を発生することが往々にしてあった。そのため有機溶媒の代わりに安全性の高い植物油を使用した殺生剤組成物の開発が近年試みられている。 In particular, biocides have so far had their active ingredients dissolved in aromatic hydrocarbons such as xylene, methylnaphthalene, kerosene, and highly polar methylpyrrolidone, isophorone, cyclohexanone, etc., and further added an emulsifier to form an emulsion. However, these organic solvents are often considered to be toxic to human animals and cause phytotoxicity to plants. For this reason, attempts have recently been made to develop biocide compositions that use highly safe vegetable oils instead of organic solvents.

しかし植物油を使用した殺生剤組成物は、従来の有機溶媒を使用した殺生剤組成物に比べ、低温安定性が悪いという欠点を持つ。植物油は低温になるに従い、流動性及び透明性を失っていき、濁って凝固した状態になる。そのため植物油を含んだ殺生剤組成物は、温度の低い時期や寒冷な地域で凝固し、植物油の凝固・分離により各成分濃度が不均一になる等の問題が発生することになる。  However, biocide compositions using vegetable oils have the disadvantage of poor low-temperature stability compared to conventional biocide compositions using organic solvents. As the vegetable oil gets colder, it loses its fluidity and transparency and becomes turbid and solidified. Therefore, a biocide composition containing vegetable oil coagulates at a low temperature or in a cold region, and causes problems such as non-uniform concentrations of components due to coagulation / separation of the vegetable oil.

また、液体の殺生剤組成物は、低温(通常0〜−10℃)での経時的製剤安定性が求められる。低温での経時的製剤安定性とは、殺生剤組成物が低温で濁りや沈殿などの成分分離が起こらない性能のことである。殺生剤組成物は、低温で流動性を保ち、さらには極力、濁りや沈殿が生じていない透明均一な状態が望まれる。 In addition, liquid biocide compositions are required to have formulation stability over time at low temperatures (usually 0 to -10 ° C). The formulation stability over time at a low temperature is a performance at which the biocide composition does not cause separation of components such as turbidity and precipitation at a low temperature. The biocide composition is desired to maintain a fluidity at a low temperature and to be transparent and uniform with no turbidity or precipitation as much as possible.

一般的な植物油のうち、溶媒あるいは分散媒として使用される大豆油、菜種油、トウモロコシ油は、−2℃から−18℃程度で濁って凝固する。一方、高オレイン酸大豆油や脂肪酸メチルエステル等は、大豆油等の一般的な植物油に比べ、低温で凝固しにくい。しかしながら、高オレイン酸大豆油や脂肪酸メチルエステル等は、一般的な植物油やこれまで使用されていた有機溶媒の多くに比べ価格が高い場合が多く、殺生剤等の分野ではこれらを溶媒あるいは分散媒の主成分として使用することは現実的でない。以上のような理由から一般的な植物油を溶媒あるいは分散媒として使用した場合でも、低温下での流動性や経時的製剤安定性を維持する技術が必要になる。 Among general vegetable oils, soybean oil, rapeseed oil, and corn oil used as a solvent or dispersion medium become cloudy and solidify at about -2 ° C to -18 ° C. On the other hand, high oleic soybean oil, fatty acid methyl ester and the like are less likely to coagulate at low temperatures than general vegetable oils such as soybean oil. However, high oleic soybean oil and fatty acid methyl esters are often more expensive than common vegetable oils and many organic solvents that have been used so far, and in the fields of biocides, these are solvents or dispersion media. It is not realistic to use it as the main component. For the reasons described above, even when general vegetable oil is used as a solvent or dispersion medium, a technique for maintaining fluidity at low temperatures and formulation stability over time is required.

また殺生剤の効力を増強するために効力増強剤と言われる殺生剤組成物の補助剤がある。効力増強剤を使った施用方法の一つは、水希釈した農薬製剤のみを作物に散布するのではなく、農薬製剤を効力増強剤と共に水希釈してから作物に散布する方法である。効力増強剤の中には、植物油と界面活性剤とから構成されるものがあるが、一般的な植物油を含む効力増強剤の場合、これまで述べてきたのと同じ理由から、低温で流動性や経時的製剤安定性を維持する技術が必要になる。 There are also adjuvants for biocide compositions referred to as efficacy enhancers to enhance the efficacy of the biocide. One application method using an efficacy enhancer is not a method in which only a water-diluted agricultural chemical formulation is sprayed on a crop, but a method in which the agricultural chemical formulation is diluted with water together with an efficacy enhancing agent and then sprayed on the crop. Some potency enhancers are composed of vegetable oils and surfactants, but in the case of potency enhancers that include common vegetable oils, they are fluid at low temperatures for the same reasons described above. In addition, a technique for maintaining the formulation stability over time is required.

こうした中、特許文献1〜3には植物油ベースの潤滑油の低温における流動性を向上する目的で、当該潤滑油にカルボキシ含有インターポリマーやポリアクリル酸エステル、各種アルキル化芳香族化合物を添加することが記載されている。しかしながら、これらの文献には殺生成分の他に界面活性剤を含む複雑な系である殺生剤組成物についての記載はない。一方、殺生剤組成物はそのエマルションの乳化性が求められるが、植物油をベースとしたもので十分に満足できる性能を有するものはない。
特開平6−220482号公報 特開平7−157790号公報 特開2003−138288号公報
Under these circumstances, Patent Documents 1 to 3 include the addition of carboxy-containing interpolymers, polyacrylates, and various alkylated aromatic compounds to the lubricating oil for the purpose of improving the low-temperature fluidity of the vegetable oil-based lubricating oil. Is described. However, these documents do not describe a biocide composition which is a complex system containing a surfactant in addition to a biocidal component. On the other hand, the biocide composition is required to have an emulsifying property of the emulsion, but none of the biocide composition has a sufficiently satisfactory performance based on vegetable oil.
JP-A-6-220482 JP-A-7-157790 JP 2003-138288 A

従って、本発明が解決しようとする課題は、低温においても流動性を長期間保つことができ、またそのエマルションを作成した場合、その乳化性に優れる、植物油と界面活性剤を含む殺生剤組成物を得ることにある。 Therefore, the problem to be solved by the present invention is that a biocide composition comprising a vegetable oil and a surfactant, which can maintain fluidity for a long period of time even at a low temperature and has excellent emulsifiability when the emulsion is prepared. There is in getting.

本発明者らは、上述した課題を解決するべく鋭意研究した結果、植物油と界面活性剤を含む殺生剤組成物に添加することで、低温で長期間、流動性を維持することができる、農薬製剤等の殺生剤組成物に配合するのに適した化合物を見出し、本発明を完成するに至った。すなわち本発明は、植物油(A)と界面活性剤(B)および下記一般式(1)で表される単量体の1種又は2種以上を主成分として重合して得られる(共)重合体(C)を必須成分として含有する殺生剤組成物であり、長期間低温で流動性や経時的製剤安定性を保つことができる。

Figure 0004891540
(R1は水素又はメチル基、R2は炭素数1〜30の炭化水素基を示す) As a result of earnest research to solve the above-mentioned problems, the present inventors have been able to maintain fluidity at low temperatures for a long period of time by adding to a biocide composition containing a vegetable oil and a surfactant. The present inventors have found a compound suitable for blending in a biocide composition such as a preparation and completed the present invention. That is, the present invention is a (co) polymer obtained by polymerizing a vegetable oil (A), a surfactant (B), and one or more monomers represented by the following general formula (1) as main components. It is a biocide composition containing the union (C) as an essential component, and can maintain fluidity and formulation stability over time at a low temperature for a long period of time.
Figure 0004891540
(R1 represents hydrogen or a methyl group, R2 represents a hydrocarbon group having 1 to 30 carbon atoms)

本発明によれば、低温で長期間流動性を確保でき、さらにエマルションを調製した場合、その乳化性に優れる植物油と界面活性剤を含む殺生剤組成物を得ることができる。 According to the present invention, it is possible to ensure fluidity for a long period of time at a low temperature, and when an emulsion is prepared, a biocide composition containing a vegetable oil and a surfactant excellent in the emulsifiability can be obtained.

以下、本発明を詳細に説明する。
上記一般式(1)中のR1は水素またはメチル基、R2は炭素数1〜30個の炭化水素基を示すが、中でも炭素数6〜22個のアルキル基が好ましい。本発明に係る(共)重合体の具体例としては、ポリ(メタ)アクリル酸エステルを挙げることができ、上記一般式(1)で表される単量体を主成分として重合することにより得られるが、その製造方法は特に限定されるものでなく、公知の方法を使用して製造することができる。また、本発明の効果を損なわない限り、上記一般式(1)で示されるもの以外の単量体との共重合物であってもよい。該(共)重合体の重量平均分子量は特に限定されるものではないが、1,000〜1,000,000であれば好ましく、中でも100,000〜700,000であればより好ましい。本(共)重合体は、植物油と界面活性剤を含む殺生剤組成物に添加することで、長期間流動性を維持することができる。その添加量は植物油と界面活性剤を含む殺生剤組成物100重量部に対し0.01〜10重量部の範囲で加えることが好ましく、中でも0.1〜5重量部を添加することがより好ましい。もっとも、殺生剤組成物の経時的製剤安定性の点ではその添加量は多いほうが好ましい。
Hereinafter, the present invention will be described in detail.
In the general formula (1), R1 represents hydrogen or a methyl group, and R2 represents a hydrocarbon group having 1 to 30 carbon atoms. Among them, an alkyl group having 6 to 22 carbon atoms is preferable. Specific examples of the (co) polymer according to the present invention include poly (meth) acrylic acid esters, which are obtained by polymerizing the monomer represented by the general formula (1) as a main component. However, the manufacturing method is not particularly limited, and it can be manufactured using a known method. Moreover, unless the effect of this invention is impaired, the copolymer with monomers other than what is shown by the said General formula (1) may be sufficient. The weight average molecular weight of the (co) polymer is not particularly limited, but is preferably 1,000 to 1,000,000, and more preferably 100,000 to 700,000. By adding the present (co) polymer to a biocide composition containing a vegetable oil and a surfactant, the fluidity can be maintained for a long time. The addition amount is preferably in the range of 0.01 to 10 parts by weight, more preferably 0.1 to 5 parts by weight, with respect to 100 parts by weight of the biocide composition containing vegetable oil and surfactant. However, in terms of the stability of the biocide composition over time, it is preferable that the amount added is large.

本発明に係る界面活性剤は、その種類が特に限定されるものではなく、アニオン系界面活性剤、ノニオン系界面活性剤、カチオン系界面活性剤、両性界面活性剤のいずれをも使用することができる。しかし中でも、植物油に近い化学構造を持つ、ジアルキルまたはジアルケニルスルホコハク酸アルカリ土類金属塩(B-1)、ポリオキシアルキレンソルビトール脂肪酸エステル(B-2)、ポリオキシアルキレンヒマシ油(B-3)、ポリオキシアルキレン硬化ヒマシ油(B-4)、脂肪酸モノグリセライド(B-5)、ソルビタン脂肪酸エステル(B-6)、ポリオキシアルキレンソルビタン脂肪酸エステル(B-7)、ジアルキルまたはジアルケニルスルホコハク酸アルカリ金属塩(B-8)、ポリグリセリン脂肪酸エステル(B-9)ポリオキシエチレン脂肪酸エステル(B-10)、ポリオキシアルキレンアルキルエーテル(B-11)、ショ糖脂肪酸エステル(B-12)の界面活性剤から選ばれる一種以上を本発明の殺生剤組成物中に含むことが乳化性の点で好ましい。 The type of the surfactant according to the present invention is not particularly limited, and any of an anionic surfactant, a nonionic surfactant, a cationic surfactant, and an amphoteric surfactant may be used. it can. Among them, dialkyl or dialkenylsulfosuccinic acid alkaline earth metal salts (B-1), polyoxyalkylene sorbitol fatty acid esters (B-2), polyoxyalkylene castor oil (B-3), which have a chemical structure close to that of vegetable oils. , Polyoxyalkylene hydrogenated castor oil (B-4), fatty acid monoglyceride (B-5), sorbitan fatty acid ester (B-6), polyoxyalkylene sorbitan fatty acid ester (B-7), alkali metal dialkyl or dialkenylsulfosuccinate Surface activity of salt (B-8), polyglycerin fatty acid ester (B-9) polyoxyethylene fatty acid ester (B-10), polyoxyalkylene alkyl ether (B-11), sucrose fatty acid ester (B-12) It is preferable from the viewpoint of emulsification that at least one selected from agents is contained in the biocide composition of the present invention.

他方、界面活性剤がジアルキルまたはジアルケニルスルホコハク酸アルカリ土類金属塩(B-1)およびポリオキシアルキレンヒマシ油(B-3)もしくはポリオキシアルキレン硬化ヒマシ油(B-4)の組み合わせからなるものであれば、乳化性の点で好ましい。 On the other hand, the surfactant is a combination of a dialkyl or dialkenyl sulfosuccinic acid alkaline earth metal salt (B-1) and a polyoxyalkylene castor oil (B-3) or a polyoxyalkylene hydrogenated castor oil (B-4) If so, it is preferable in terms of emulsification.

また、界面活性剤がジアルキルまたはジアルケニルスルホコハク酸アルカリ土類金属塩(B-1)およびポリオキシアルキレンソルビトール脂肪酸エステル(B-2)の組み合わせからなるものを本発明の殺生剤組成物中に含むことが、より優れた乳化性を得る点で好ましい。 Further, the biocide composition of the present invention includes a surfactant comprising a combination of a dialkyl or dialkenyl sulfosuccinic acid alkaline earth metal salt (B-1) and a polyoxyalkylene sorbitol fatty acid ester (B-2). It is preferable in terms of obtaining more excellent emulsifiability.

さらに、界面活性剤がジアルキルまたはジアルケニルスルホコハク酸アルカリ土類金属塩(B-1)と、ポリオキシアルキレンソルビトール脂肪酸エステル(B-2)に加え、ポリオキシアルキレンヒマシ油(B-3)もしくはポリオキシアルキレン硬化ヒマシ油(B-4)、さらには脂肪酸モノグリセライド(B-5)もしくはソルビタン脂肪酸エステル(B-6)の組み合わせからなるものであれば、特に優れた乳化性を得る点で好ましい。
もっとも、これら以外の界面活性剤も本発明の効果を損なわない限り併用することができる。
In addition to the dialkyl or dialkenyl sulfosuccinic acid alkaline earth metal salt (B-1) and polyoxyalkylene sorbitol fatty acid ester (B-2), the surfactant is polyoxyalkylene castor oil (B-3) or polyoxyalkylene. A combination of oxyalkylene hydrogenated castor oil (B-4), fatty acid monoglyceride (B-5) or sorbitan fatty acid ester (B-6) is particularly preferred in terms of obtaining excellent emulsifiability.
However, surfactants other than these can also be used in combination as long as the effects of the present invention are not impaired.

一方、本発明に係る(共)重合体(C)に加え、下記一般式(2)に示されるカルボン酸エステル(D)を植物油と界面活性剤を含む殺生剤組成物に添加することにより流動性と経時的製剤安定性をさらに向上させることができる。

Figure 0004891540
(R3は炭素数6〜30の炭化水素基、R4は炭素数1〜24の炭化水素基を示す) On the other hand, in addition to the (co) polymer (C) according to the present invention, a carboxylic acid ester (D) represented by the following general formula (2) is added to a biocide composition containing a vegetable oil and a surfactant. And the formulation stability over time can be further improved.
Figure 0004891540
(R3 represents a hydrocarbon group having 6 to 30 carbon atoms, and R4 represents a hydrocarbon group having 1 to 24 carbon atoms)

一般式(2)中のR3は炭素数6〜30個の炭化水素基であるが、中でも炭素数8〜24個の炭化水素基が好ましい。一方、R4は炭素数1〜24個の炭化水素基であるが、中でも炭素数1〜12個の炭化水素基が好ましい。また菜種脂肪酸メチルエステルや大豆油脂肪酸2−エチルヘキサノールエステル等の天然油脂由来の脂肪酸混合物をエステル化したものを使用することも好ましい。本カルボン酸エステルは、一般式(1) で表される単量体を主成分として重合して得られる(共)重合体(C)とともに植物油と界面活性剤を含む殺生剤組成物に添加することで、長期間流動性と経時的製剤安定性をさらに向上させることができる。その添加量は、植物油と界面活性剤を含む殺生剤組成物100重量部に対し3〜70重量部の範囲で加えることが好ましく、10〜45重量部を添加することがより好ましい。 R3 in the general formula (2) is a hydrocarbon group having 6 to 30 carbon atoms, and among them, a hydrocarbon group having 8 to 24 carbon atoms is preferable. On the other hand, R4 is a hydrocarbon group having 1 to 24 carbon atoms. Among them, a hydrocarbon group having 1 to 12 carbon atoms is preferable. Moreover, it is also preferable to use what esterified the fatty-acid mixture derived from natural fats and oils, such as rapeseed fatty acid methyl ester and soybean oil fatty acid 2-ethylhexanol ester. This carboxylic acid ester is added to a biocide composition containing a vegetable oil and a surfactant together with a (co) polymer (C) obtained by polymerizing the monomer represented by the general formula (1) as a main component. Thus, it is possible to further improve long-term fluidity and formulation stability over time. The addition amount is preferably 3 to 70 parts by weight, and more preferably 10 to 45 parts by weight, based on 100 parts by weight of the biocide composition containing vegetable oil and surfactant.

本発明の低温特性が改良された殺生剤組成物に配合される殺生剤成分は、殺虫剤、殺菌剤、除草剤等があるが、これら殺生成分に限定されるものではない。 The biocide components blended in the biocide composition with improved low-temperature characteristics of the present invention include insecticides, fungicides, herbicides and the like, but are not limited to these biocidal components.

本発明の低温特性が改良された殺生剤組成物がベースとする植物油は、大豆油、トウモロコシ油、菜種油、サンフラワー油が好ましいがこれらに限定されるものではなく、パーム油、ヒマシ油、綿実油、オリーブ油など植物由来の全ての油に適用することができる。 The vegetable oil based on the biocide composition with improved low temperature characteristics of the present invention is preferably soybean oil, corn oil, rapeseed oil, sunflower oil, but is not limited thereto, palm oil, castor oil, cottonseed oil It can be applied to all plant-derived oils such as olive oil.

本発明の殺生剤組成物には、上記のもの以外の溶媒類、担体類、分解防止剤、増粘剤等の補助剤を加えても良い。 To the biocide composition of the present invention, auxiliary agents such as solvents, carriers, decomposition inhibitors and thickeners other than those described above may be added.

本発明の低温特性が改良された殺生剤組成物の剤型としては、乳剤、フロアブル製剤、オイルベースフロアブル製剤、エマルション製剤、マイクロエマルション製剤、サスポエマルション製剤等を得ることができる。また、殺生剤の効力を増強する性能を持つ植物油と界面活性剤とを含む効力増強剤にも本発明の(共)重合体やカルボン酸エステルを添加することで、その低温特性を改良することができる。 As the dosage form of the biocide composition with improved low-temperature characteristics of the present invention, emulsion, flowable preparation, oil-based flowable preparation, emulsion preparation, microemulsion preparation, suspoemulsion preparation and the like can be obtained. In addition, by adding the (co) polymer and carboxylic acid ester of the present invention to an efficacy enhancer comprising a vegetable oil and a surfactant having the ability to enhance the efficacy of a biocide, the low temperature characteristics thereof are improved. Can do.

以下、実施例を挙げて本発明を更に説明するが、本発明はこれらの実施例に限定解釈されるものではない。また、ここで用いられている部は、特に断りがない限り重量部を示す。 EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated further, this invention is limited to these Examples and is not interpreted. Moreover, the part used here shows a weight part unless there is particular notice.

(実施例に使用した重合体(C))
本実施例においては、一般式(1)におけるR1がメチル基で、R2が炭素数12〜18のアルキル基である、重量平均分子量が200,000であるポリメタアクリレート40部と、鉱物油60部からなるポリメタアクリレート鉱物油希釈物を使用した。
(Polymer (C) used in Examples)
In this example, R 1 in the general formula (1) is a methyl group, R 2 is an alkyl group having 12 to 18 carbon atoms, 40 parts of polymethacrylate having a weight average molecular weight of 200,000, mineral oil 60 A polymethacrylate mineral oil dilution consisting of parts was used.

(実施例に使用したカルボン酸エステル(D))
本実施例においては、一般式(2)におけるR3が炭素数16から炭素数22の範囲にある炭化水素基で、R4がメチル基である、菜種油の脂肪酸をメチルエステル化した菜種脂肪酸メチルエステルを使用した。
(Carboxylic acid ester (D) used in Examples)
In this example, R 3 in the general formula (2) is a hydrocarbon group having 16 to 22 carbon atoms and R 4 is a methyl group. Esters were used.

参考例に使用した界面活性剤1)
参考例に使用した界面活性剤1は、以下の処方で混合撹拌することにより得たものである。

Figure 0004891540
(Surfactant 1 used in Reference Example)
Surfactant 1 used in the reference example was obtained by mixing and stirring with the following formulation.
Figure 0004891540

(実施例に使用した界面活性剤2)
実施例に使用した界面活性剤2は、以下の処方で混合撹拌することにより得たものである。

Figure 0004891540
(Surfactant 2 used in Examples)
Surfactant 2 used in the examples was obtained by mixing and stirring with the following formulation.
Figure 0004891540

(実施例に使用した界面活性剤3)
実施例に使用した界面活性剤3は、以下の処方で混合撹拌することにより得たものである。

Figure 0004891540
(Surfactant 3 used in Examples)
Surfactant 3 used in the examples was obtained by mixing and stirring with the following formulation.
Figure 0004891540

(実施例に使用した殺生成分)
本実施例においては、殺生成分として殺虫作用を持つS-1,2-bis(エトキシカルボニル)エチルO,O-ジメチルフォスフォロジチオエート(マラチオン)を使用した。
(The amount of killed product used in the examples)
In the present example, S-1,2-bis (ethoxycarbonyl) ethyl O, O-dimethylphosphorodithioate (malathion) having an insecticidal action was used as a biocidal product.

参考例1)

Figure 0004891540
上記処方にて混合攪拌し、殺生剤組成物を得た。 ( Reference Example 1)
Figure 0004891540
The biocide composition was obtained by mixing and stirring with the above formulation.

(実施例2)

Figure 0004891540
上記処方にて混合攪拌し、殺生剤組成物を得た。 (Example 2)
Figure 0004891540
The biocide composition was obtained by mixing and stirring with the above formulation.

(実施例3)

Figure 0004891540
上記処方にて混合撹拌し、殺生剤組成物を得た。 (Example 3)
Figure 0004891540
The mixture was stirred with the above formulation to obtain a biocide composition.

(実施例4)

Figure 0004891540
上記処方にて混合攪拌し、殺生剤組成物を得た。 (Example 4)
Figure 0004891540
The biocide composition was obtained by mixing and stirring with the above formulation.

(実施例5)

Figure 0004891540
上記処方にて混合攪拌し、殺生剤組成物を得た。 (Example 5)
Figure 0004891540
The biocide composition was obtained by mixing and stirring with the above formulation.

(比較例1)

Figure 0004891540
上記処方にて混合攪拌し、殺生剤組成物を得た。 (Comparative Example 1)
Figure 0004891540
The biocide composition was obtained by mixing and stirring with the above formulation.

(比較例2)

Figure 0004891540
上記処方にて混合攪拌し、殺生剤組成物を得た。 (Comparative Example 2)
Figure 0004891540
The biocide composition was obtained by mixing and stirring with the above formulation.

(比較例3)

Figure 0004891540
上記処方にて混合攪拌し、殺生剤組成物を得た。 (Comparative Example 3)
Figure 0004891540
The biocide composition was obtained by mixing and stirring with the above formulation.

[低温特性の評価試験方法]
上記、実施例1〜5及び比較例1〜3に示した組成より成る殺生剤組成物をフタ付の透明なガラスビンに入れ、これを−5℃に静置した。−5℃に静置後、1日、3日、7日、14日、30日の経過時間ごとに流動性の有無、透明性の程度、沈殿の有無を目視確認した。流動性の有無は、ガラスビンを180度傾けてから、5秒間、殺生剤組成物が全く動かなかったときを流動性無と判定し、180度傾けてから、5秒間以内に動いたときは流動性有とした。−5℃に静置した各殺生剤組成物の評価は、◎、○、△、×の4段階に分けた。
◎:流動性と経時的製剤安定性(分離が生じておらず透明であること)が維持された状態
○:微量に沈殿があるが流動性と経時的製剤安定性が維持された状態
△:流動性は維持されているが、濁りもしくは沈殿が生じた状態
×:流動性が無く濁ったまま凝固した状態
[Evaluation test method for low temperature characteristics]
The biocide compositions having the compositions shown in Examples 1 to 5 and Comparative Examples 1 to 3 were placed in a transparent glass bottle with a lid and allowed to stand at -5 ° C. After standing at −5 ° C., the presence or absence of fluidity, the degree of transparency, and the presence or absence of precipitation were visually confirmed every 1 day, 3 days, 7 days, 14 days, and 30 days. Whether the biocide composition does not move at all for 5 seconds after tilting the glass bottle by 180 degrees is judged as non-flowable, and when it moves within 5 seconds after tilting 180 degrees It was sexual. The evaluation of each biocide composition that was allowed to stand at −5 ° C. was divided into four stages: ◎, ○, Δ, and ×.
A: State in which fluidity and formulation stability over time (transparency is maintained without separation) ○: Precipitation in a small amount, but state in which fluidity and formulation stability over time are maintained Δ: Although fluidity is maintained, turbidity or precipitation occurs x: solidified without turbidity

[乳化性能の試験方法]
上記、実施例1〜5及び比較例1〜3に示した組成より成る殺生剤組成物を、20℃の10度硬水にて100倍希釈し、100ml容共栓付シリンダー内で1分回に30回倒立混合した。混合後、希釈液の乳化状態を肉眼にて観察し、各殺生剤組成物を以下の判断基準により評価した。
A:良好な乳化状態
B:乳化状態
C:乳化しない状態
[Test method for emulsification performance]
The biocide compositions having the compositions shown in Examples 1 to 5 and Comparative Examples 1 to 3 were diluted 100 times with 10 ° C. hard water at 20 ° C., and 30 times per minute in a 100 ml stoppered cylinder. Invert mixed. After mixing, the emulsified state of the diluted solution was observed with the naked eye, and each biocide composition was evaluated according to the following criteria.
A: Good emulsification state
B: Emulsified state
C: Not emulsified

[試験結果]
以下に試験結果を示す。
[Test results]
The test results are shown below.

Figure 0004891540
Figure 0004891540

比較例1および2は、−5℃・1日で流動性を失って凝固するのに対し、本発明の重合体(C)を含有する実施例1〜5は、−5℃・30日の間、流動性を維持し、植物油と界面活性剤を含む殺生剤組成物に流動性をもたらす効果があることを示している。さらにポリメタアクリレート鉱物油希釈物を10%を含む実施例3は−5℃・30日間、流動性を維持し、かつ−5℃・7日間、経時的製剤安定性(分離が生じておらず透明であること)が維持され、ポリメタアクリレートが流動性を保つ効果だけでなく、経時的製剤安定性を長期間維持する効果をも有することがわかる。 Comparative Examples 1 and 2 lose their fluidity at −5 ° C./day for solidification, whereas Examples 1 to 5 containing the polymer (C) of the present invention have −5 ° C./30 days. In the meantime, the fluidity is maintained, and the biocide composition containing the vegetable oil and the surfactant has the effect of bringing fluidity. Furthermore, Example 3 containing 10% of a polymethacrylate mineral oil dilution maintains fluidity at −5 ° C. for 30 days, and the formulation stability over time at −5 ° C. for 7 days (no separation occurs) It is clear that the polymethacrylate has not only the effect of maintaining fluidity but also the effect of maintaining the formulation stability over time for a long time.

一方、実施例1と実施例2は、−5℃・30日の間、流動性を維持したが、−5℃・3日以降で濁り・沈殿を生じ経時的製剤安定性を失った。これに対し、ポリメタアクリレートと菜種脂肪酸メチルエステルの双方を含む実施例4と実施例5は、−5℃・14日間、流動性のみならず経時的製剤安定性をも維持した。このことはポリメタアクリレートのような重合体(C)の添加量が少なくとも、菜種脂肪酸メチルエステルのようなカルボン酸エステル(D)を配合することで、植物油と界面活性剤を含む殺生剤組成物の低温における流動性と経時的製剤安定性を長期間、維持するのに効果があることを示している。 On the other hand, Example 1 and Example 2 maintained fluidity for −5 ° C. for 30 days, but lost turbidity and precipitation after −5 ° C. for 3 days and lost stability over time. On the other hand, Example 4 and Example 5 containing both polymethacrylate and rapeseed fatty acid methyl ester maintained not only fluidity but also formulation stability over time at −5 ° C. for 14 days. This is because the addition amount of the polymer (C) such as polymethacrylate is blended with at least a carboxylic acid ester (D) such as rapeseed fatty acid methyl ester, so that the biocide composition contains vegetable oil and surfactant. It is effective in maintaining the fluidity at low temperatures and the formulation stability over time for a long time.

各殺生剤組成物を水希釈したときの乳化状態に関して述べると、界面活性剤を含まない比較例3がCの評価で乳化しなかったのに対し、界面活性剤1を含む実施例1はBの評価で乳化状態が得られ、界面活性剤2もしくは界面活性剤3を含む実施例2〜5と比較例1、2はAの評価で良好な乳化状態が得られた。このことは、殺生剤組成物を乳化するには界面活性剤が必須で、さらにその種類で乳化性能が異なることを示している。 Regarding the emulsified state when each biocide composition was diluted with water, Comparative Example 3 containing no surfactant was not emulsified in the evaluation of C, whereas Example 1 containing surfactant 1 was B. In the evaluation of A, the emulsified state was obtained, and in Examples 2 to 5 and Comparative Examples 1 and 2 containing Surfactant 2 or Surfactant 3, a favorable emulsified state was obtained in A evaluation. This indicates that a surfactant is essential for emulsifying the biocide composition, and that the emulsification performance differs depending on the type.

上記の試験結果が示すように、本発明により植物油を含む殺生剤組成物を長期間、低温で流動性や経時的製剤安定性を維持することができ、さらにそのエマルションは乳化性に優れる。

As the above test results show, the biocide composition containing a vegetable oil according to the present invention can maintain fluidity and formulation stability over time at a low temperature for a long period of time, and the emulsion has excellent emulsifying properties.

Claims (2)

植物油(A)と界面活性剤(B)および下記一般式(1)で表される単量体の1種又は2種以上を主成分として重合して得られる(共)重合体(C)を必須成分として含有する殺生剤組成物であって、前記界面活性剤(B)が、ジアルキルまたはジアルケニルスルホコハク酸アルカリ土類金属塩(B-1)と、ポリオキシアルキレンソルビトール脂肪酸エステル(B-2)に加え、ポリオキシアルキレンヒマシ油(B-3)もしくはポリオキシアルキレン硬化ヒマシ油(B-4)、さらには脂肪酸モノグリセライド(B-5)あるいはソルビタン脂肪酸エステル(B-6)の組み合わせからなるものである殺生剤組成物。
Figure 0004891540
(Rは水素又はメチル基、Rは炭素数1〜30の炭化水素基を示す。)
(Co) polymer (C) obtained by polymerizing vegetable oil (A), surfactant (B) and one or more monomers represented by the following general formula (1) as main components A biocide composition contained as an essential component, wherein the surfactant (B) comprises a dialkyl or dialkenyl sulfosuccinic acid alkaline earth metal salt (B-1) and a polyoxyalkylene sorbitol fatty acid ester (B-2). ), Polyoxyalkylene castor oil (B-3) or polyoxyalkylene hydrogenated castor oil (B-4), and a combination of fatty acid monoglyceride (B-5) or sorbitan fatty acid ester (B-6) A biocide composition.
Figure 0004891540
(R 1 represents hydrogen or a methyl group, and R 2 represents a hydrocarbon group having 1 to 30 carbon atoms.)
さらに下記一般式(2)で表されるカルボン酸エステル(D)を含む、請求項1に記載の殺生剤組成物。
Figure 0004891540
(Rは炭素数6〜30の炭化水素基、Rが炭素数1〜24の炭化水素基を示す。)
The biocide composition according to claim 1, further comprising a carboxylic acid ester (D) represented by the following general formula (2).
Figure 0004891540
(R 3 represents a hydrocarbon group having 6 to 30 carbon atoms, and R 4 represents a hydrocarbon group having 1 to 24 carbon atoms.)
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