CN1077770C - 1,2-苯并异噻唑啉-3-酮的液体制剂 - Google Patents
1,2-苯并异噻唑啉-3-酮的液体制剂 Download PDFInfo
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Abstract
本发明公开了1,2-苯并异噻唑啉-3-酮的液体制剂和制备该制剂的方法。按照本发明的制剂含约1-25%(重量)的1,2-苯并异噻唑啉-3-酮、约3-7%(重量)的氢氧化钠、约3-63%(重量)的水和约20-65%(重量)的一种或多种具有下式的三元醇的多二醇化物。式中nx、ny和nz分别选自2和3,并且当nx、ny和nz分别等于2时,X+Y+Z之和等于或小于约13.2,而当nx、ny和nz分别等于3时,X+Y+Z之和等于或小于约4.45。
H2C-O[CnxH2nxO]XH
HC-O[CnyH2nyO]YH
H2C-O[CnzH2nzO]ZH
Description
本发明涉及含1,2-苯并异噻唑啉-3-酮的液体组合物和制备该组合物的方法,尤其涉及含1,2-苯并异噻唑啉-3-酮且具低含量的挥发性有机化合物的稳定的液体组合物。
1,2-苯并异噻唑啉-3-酮(“BIT”)是种有效的生物杀伤剂。从其用途出发提供一种BIT的液体制剂是合乎需要的。但遗憾的是BIT在水中的溶解度小。BIT可以以水性分散体形式使用,但是,它容易从静态混合物中沉出,尤其在低温时更是如此。
已经公开了在胺类中的BIT的液体制剂。例如,英国专利第1191253号上公开了BIT的在水和二种或二种以上胺盐中的溶液。英国专利第1330531号上公开了BIT以其胺盐形式在至少一种胺和可任选的水中的溶液。美国专利第4923887上公开了以乙氧基化(椰子烷基)胺、水、醇类、1,2-丙二醇、二聚丙二醇、聚乙二醇、乙二醇醚或它们的混合物为溶剂的BIT的液体制剂。美国专利第5276047号上公开含三胺和三胺的混合物、水、乙二醇类化合物及烷基乙二醇醚的BIT的液体制剂。
含胺类的BIT的制剂可能不适用于某些应用。胺类一般是挥发性的并具有强烈的难闻的气味。胺类通常不适用于间接接触食品的应用。胺类可引起某些水基胶乳变黄。上述BIT的胺溶液可能不适用作罐装食品防腐的生物杀伤剂。
美国专利第4188376号上公开了粗制BIT的碱金属盐与二聚丙二醇、三聚丙二醇、聚乙二醇(分子量为300)、某些醇类、低级烷基卡必醇和它们的混合物和水形成的液体制剂。醇类、低级烷基卡必醇和二聚丙二醇具挥发性,并有些臭味。此外,含三聚丙二醇和聚丙二醇的BIT制剂在低温下稳定性很差,必须使用助溶剂例如丙二醇或二聚丙二醇以防止BIT沉淀。
所以,需要一种这样的BIT的液体制剂:它甚至在低温贮存条件下也具有良好的稳定性,VOC(挥发性有机化合物)含量非常低并适于广泛应用。
本发明的目的是提供一种低VOC含量的BIT的液体制剂。
本发明的目的之二是提供一种不含胺类的BIT制剂。
本发明的目的之三是提供一种VOC含量低且在低温即0℃~-10℃下至少在几星期时间内稳定的BIT的液体制剂。
现披露达到前述一个目的或多个目的的BIT液体制剂和制备这样的制剂的方法。按照本发明的制剂含1,2-苯并异噻唑啉-3-酮、氢氧化钠、水和具有下式的三元醇的聚二醇化物(polyglycol triols):式中nx、ny和nz分别选自2和3,并且当nx、ny和nz分别等于2时,X+Y+Z之和等于或小于约13.2,而当nx、ny和nz分别等于3时,X+Y+Z之和等于或小于约4.45。
按照本发明的BIT的液体制剂含约1~25%(重量)的1,2-苯并异噻唑啉-3-酮、约3~7%(重量)固体(不含水)氢氧化钠、约3~66%(重量)的水和约20~65%(重量)的一种或多种具有下式的三元醇的聚二醇化物:式中nx、ny和nz分别选自2和3,并且当nx、ny和nz分别等于2时,X+Y+Z之和等于或小于约13.2,而当nx、ny和nz分别等于3时,X+Y+Z之和等于或小于约4.45。
当nx、ny和nz分别等于2时,该三元醇的聚二醇化物是甘油的乙氧基化物(glycerol ethoxylate)。当甘油的乙氧基化物的X+Y+Z之和等于或小于约13.2时,与此相应甘油的乙氧基化物的平均分子量为700或700以下。当nx、ny和nz分别等于3时,该三元醇的聚二醇化物为甘油的丙氧基化物。当甘油的丙氧基化物的X+Y+Z之和小于或等于约4.45时,与此相应其平均分子量小于约350。
尽管nx、ny和nz的值一般相同,在给定的三元醇的聚二醇化物范围内,即为2或3,但这不作要求。如上所述,nx、ny和nz的值是分别选择的。此外如上所述,该制剂可含有一种或多种的三元醇的聚二醇化物,即该制剂不仅可以含单一的甘油的丙氧基化物或甘油的乙氧基化物,而且还可以含这两者的混合物。此外,如该制剂只含甘油的丙氧基化物,它可以是具有不同分子量的甘油的丙氧基化物的混合物。用在这里的术语“分子量”或“平均分子量”指“数均”分子量。
甘油的丙氧基化物可商购自DOW Chemical Company和AldrichCompany。平均分子量为250的甘油的丙氧基化物可购自DOWChemical Company,商品名为PT250。三元醇的聚二醇化物的制备方法在本领域是众所周知的。参见例如美国专利第2927918号和2990376号。
分子量高于约350的甘油的丙氧基化物不适用于在低温即0℃~-10℃长时期稳定BIT制剂,尽管它可被用于在较高温度即室温下稳定BIT制剂。分子量低于约250的甘油的丙氧基化物可形成稳定的低温制剂。但是,这样的制剂的粘度和VOC值可能过高,不合需要。可以使用助溶剂来降低这样的制剂的粘度和VOC值。所以,优选使用平均分子量在约250~350范围内的甘油的丙氧基化物。甘油的丙氧基化物的这个分子量范围相当于X+Y+Z之和在约2.72~4.45范围内。通常,最优先选用平均分子量在250~266范围内的甘油的丙氧基化物,因为在此范围内有商品供应。这个分子量范围相当于X+Y+Z之和在约2.72~3.00范围内。
上述三元醇的聚二醇化物可用来制备其它低VOC的制剂。
本发明中所用的BIT可以是纯品形式,合成得到的粗产物形式或润湿的粉末形式。
尽管本发明中可使用固体氢氧化钠,但是,因使用方便,所以优先选用氢氧化钠水溶液。适合于本发明中使用的氢氧化钠水溶液的浓度至少为约4.3%(重量)。氢氧化钠水溶液可商购获得或通过将固体氢氧化钠与适量的水混合来制备。
在本发明的优选实施方案中,BIT的液体制剂含约15~23%(重量)的BIT、约3~7%(重量)的氢氧化钠、约40~65%(重量)的如上定义的一种或多种三元醇的聚二醇化物和约5~42%(重量)的水。
在本发明的目前最优选实施方案中,BIT的液体制剂含约19.3%(重量)的BIT、约6%(重量)的氢氧化钠、约55%(重量)平均分子量为250~266的甘油的丙氧基化物和19.7%(重量)的水。
按照本发明的BIT的液体制剂适宜用作为工业防腐剂,例如,用在水基涂料、粘合剂、清洁剂、乳剂、工业冷却水或金属加工液中。这样的制剂的VOC含量比先有技术的低得多。此外,按照本发明的BIT的液体制剂的一些实施方案可以是稳定的,即在0℃放置6个月或6个月以上,没有BIT沉淀形成。
按照本发明的液体制剂还含有适宜降低其粘度的助溶剂。已观察到通常该类制剂的粘度随甘油的丙氧基化物溶剂或甘油的乙氧基化物溶剂分子量的增加而降低。正如前述,含有分子量高于约350的甘油的丙氧基化物的制剂在低温下不稳定。所以,在一个实施方案中,分子量为约350或低于350的甘油的丙氧基化物可被用作溶剂,平均分子量低于约750但高于作为溶剂的甘油的丙氧基化物的分子量的甘油的丙氧基化物可用作助溶剂。
应该理解的是,如果例如需要低温稳定性,那么在该制剂中必须使用必需量的具适宜分子量的甘油的丙氧基化物或甘油的乙氧基化物,即20~65%(重量)。例如,2%(重量)分子量为250的甘油的内氧基化物和18%(重量)分子量为700的甘油的丙氧基化物不能产生具有低温稳定性的制剂。至少需要约20%(重量)分子量为250的甘油的丙氧基化物。在此情况下,除所述的要求“溶剂”三元醇的聚二醇化物外,该制剂中还包含任何作为助溶剂的三元醇的聚二醇化物。
在另一实施方案中,具合适分子量的甘油的乙氧基化物可用作助溶剂与作为溶剂的甘油的丙氧基化物一起使用。同样,具适合分子量的甘油的丙氧基化物可用作助溶剂与作为溶剂的甘油的乙氧基化物一起使用。选择助溶剂的分子量以获得粘度比单独使用溶剂时低的制剂。对于某种给定的溶剂分子量,一个普通的技术人员可以容易地确定助溶剂的分子量。
在另一实施方案中,助溶剂可以是丙二醇、二聚丙二醇、二聚丙二醇甲醚、2-甲基-1,3-丙二醇和分子量为400或400以上的聚乙二醇,但不限于这些。因为这些助溶剂中的一些具挥发性,所以它们的使用可能受到使用性质的限制。
在本发明的一个实施方案中,BIT的液体制剂可按下法制备。将BIT与至少一种三元醇的聚二醇化物混合。然后,将氢氧化钠和水加至该混合物中。放热反应发生,引起该混合物温度升高。如果使该混合物的组分在约室温下接触,所放热量将使该混合物温度增加到大约35~40℃。
在最后一步中,最好将该混合物充分搅拌一段时间以使其均匀。这一步可在上面提到放热引起升温的条件下进行,即在约35~40℃下进行。将该混合物加热到50℃为佳,最好到60℃,并维持该温度下达到均一化。如果该混合物的温度为至少约50℃,那么1.5小时将足以使该混合物均一化。在较低温度下要达到均一化将需要较多的时间。
在另一实施方案中,将助溶剂加到该混合物中。该助溶剂可在上述方法中任何一步加入。
本发明通过下列非限制性实施例进一步说明。除非另有说明,比例均按重量计。在实施例1、2和4~7中所述制剂的稳定性预计可与实施例3的相比。但是,对于这些实施例未进行长期试验。
实施例1
将19.3份的BIT(在110℃干燥1小时)加到平均分子量为250的55份甘油的丙氧基化物中。在环境温度搅拌该混合物以使BIT分散。将12份50%NaOH和13.7份水加至该溶液中,并搅拌该混合物半小时。搅拌下,将该混合物加热并在60℃保温1.5小时。然后将该溶液在室温下过滤。该溶液能在-10℃下保持稳定至少3周时间。
实施例2
将25份的BIT粗品糊状物(相当19.3份的干燥BIT)加到平均分子量为250的55份甘油的丙氧基化物中。在环境温度搅拌该混合物以使BIT分散。将12份50%NaOH和8份水加至该溶液中,并搅拌该混合物1.5小时。在搅拌下,将该混合物加热并在60℃保温1.5小时。然后在室温下将该溶液过滤。该溶液能在-10℃下保持稳定至少3周时间。
实施例3
将实施例2中所用的55份甘油的丙氧基化物用分子量为260的55份甘油的丙氧基化物替代。所形成的溶液的粘度低于实施例2的溶液的粘度。该溶液在-10℃下保持稳定的时间超过6个月。
实施例4
将实施例2中所用的55份甘油的丙氧基化物用平均分子量为266的55份甘油的丙氧基化物替代。所形成的溶液的粘度低于实施例2的溶液的粘度。该溶液能在0℃下保持稳定至少1周时间。
实施例5
将实施例2中所用55份甘油的丙氧基化物中的15份用平均分子量为266的甘油的丙氧基化物替代。所形成的溶液的粘度低于实施例2的溶液的粘度。该溶液能在0℃下保持稳定至少1周时间。
实施例6
将实施例2中所用55份甘油的丙氧基化物中的10份用平均分子量为700的甘油的丙氧基化物替代。所形成的溶液的粘度低于实施例2的溶液的粘度。该溶液能在0℃下保持稳定至少2周时间。
实施例7
将实施例2中所用55份甘油的丙氧基化物中的5份用平均分子量为750的甘油的丙氧基化物替代。所形成的溶液的粘度低于实施例2的溶液的粘度。该溶液能在0℃下保持稳定至少3周时间。
对比例
将19.3份干燥的BIT加到55份二聚丙二醇中。将该混合物在环境温度搅拌以使BIT分散。将12份50%NaOH和13.7份水加至该溶液中,并搅拌该混合物半小时。然后在搅拌下加热该混合物并在60℃保温1.5小时。然后将该混合物过滤。
按照改良的ASTM D2369法检测依照对比例和实施例1和3所制备的制剂的VOC含量。在该改良法中,用玻璃碟替代检测用的标准铝箔碟以避免任何可能出现的铝箔与氢氧化钠间的反应。在108~113℃下的检测结果见下表1:
表1
实施例1 | 实施例3 | 对比例 | |
VOC% | 3.1 | 1.1 | 47.6 |
Claims (24)
2.权利要求1的液体制剂,其中当nx、ny和nz分别等于3时,X+Y+Z之和在2.72~4.45范围内。
3.权利要求1的液体制剂,其中当nx、ny和nz分别等于3时,X+Y+Z之和在2.72~3.00范围内。
4.权利要求1的液体制剂,其中nx、ny和nz分别等于2,并且X+Y+Z之和等于或小于13.2。
5.权利要求4的液体制剂,含有30-65%(重量)的一种或多种三元醇的聚二醇化物。
6.权利要求2的液体制剂,还包含助溶剂。
7.权利要求4的液体制剂,还包含助溶剂。
8.权利要求7的液体制剂,其中的助溶剂是三元醇的聚二醇化物,该三元醇的聚二醇化物具有适宜于降低该液体制剂粘度的平均分子量。
9.权利要求8的液体制剂,其中三元醇的聚二醇化物助溶剂是平均分子量高于所述的一种或多种三元醇的聚二醇化物的平均分子量且小于750的甘油的丙氧基化物。
10.权利要求7的液体制剂,其中该助溶剂选自丙二醇、二聚丙二醇、二聚丙二醇甲醚、2-甲基-1,3-丙二醇和平均分子量高于400的聚乙二醇。
11. 1,2-苯并异噻唑啉-3-酮的液体制剂,含有:1~25%(重量)的1,2-苯并异噻唑啉-3-酮、3~7%(重量)的氢氧化钠、3~63%(重量)的水和20~65%(重量)的一种或多种选自甘油的乙氧基化物和甘油的丙氧基化物的三元醇的聚二醇化物,其中所述甘油的乙氧基化物的平均分子量小于或等于700,而所述甘油的丙氧基化物的平均分子量小于或等于350。
12.权利要求11的液体制剂,其中所述甘油的丙氧基化物的平均分子量在250~350的范围内。
13.权利要求11的液体制剂,其中所述的一种或多种三元醇的聚二醇化物是平均分子量在250~266范围内的甘油的丙氧基化物。
14.权利要求11的液体制剂,还含有助溶剂。
15.在低温下稳定的1,2-苯并异噻唑啉-3-酮的液体制剂,含有:15~23%(重量)的1,2-苯并异噻唑啉-3-酮、3~7%(重量)的氢氧化钠、40~65%(重量)的平均分子量在250~266范围内的甘油的丙氧基化物和5~42%(重量)的水。
16.权利要求15的液体制剂,还含有助溶剂。
17.权利要求15的液体制剂,含有19.3%(重量)的1,2-苯并异噻唑啉-3-酮、6%(重量)的氢氧化钠、55%(重量)的平均分子量在250~266范围内的甘油的丙氧基化物和19.7%(重量)的水。
18.制备1,2-苯并异噻唑啉-3-酮的液体制剂的方法,包括下列步骤:
(a)将1,2-苯并异噻唑啉-3-酮与至少一种具下式的三元醇的
聚二醇化物混合:式中nx、ny和nz分别选自2和3,并且当nx、ny和nz分别等于2时,X+Y+Z之和等于或小于13.2,而当nx、ny和nz分别等于3时,X+Y+Z之和等于或小于4.45;
(b)将NaOH和水加到步骤(a)的混合物中;和
(c)充分搅拌步骤(b)的混合物一段时间以使该混合物均匀;
其中步骤(c)的混合物含1~25%(重量)的1,2-苯并异噻唑啉-3-酮、3~7%(重量)的氢氧化钠、20~65%(重量)的至少一种三元醇的聚二醇化物和3~63%(重量)的水。
19.权利要求18的方法,其中步骤(c)还包括将该混合物加热到至少50℃。
20.权利要求19的方法,其中所述的一段时间为至少1.5小时。
21.权利要求18的方法,还包括加入助溶剂一步。
22.权利要求21的方法,其中所述的助溶剂选自平均分子量高于250但低于750的甘油的丙氧基化物、丙二醇、二聚丙二醇、二聚丙二醇甲醚、2-甲基-1,3-丙二醇和平均分子量高于400的聚乙二醇。
23.权利要求18的方法,其中nx、ny和nz分别等于3。
24.权利要求23的方法,其中X+Y+Z在2.72~3.00范围。
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US08/505,013 US5585033A (en) | 1995-07-21 | 1995-07-21 | Liquid formulations of 1,2-benzisothiazolin-3-one |
US505013 | 1995-07-21 |
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EP (1) | EP0754407B1 (zh) |
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KR (1) | KR100266801B1 (zh) |
CN (1) | CN1077770C (zh) |
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AT (1) | ATE211359T1 (zh) |
AU (1) | AU699020B2 (zh) |
BR (1) | BR9601983A (zh) |
CA (1) | CA2181605C (zh) |
DE (1) | DE69618292T2 (zh) |
DK (1) | DK0754407T3 (zh) |
ES (1) | ES2170822T3 (zh) |
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GT200100026A (es) * | 2000-02-18 | 2002-02-21 | Composiciones fungicidas tolerantes a inoculos. | |
GB0012786D0 (en) * | 2000-05-26 | 2000-07-19 | Avecia Ltd | Method and compositions |
US20030060496A1 (en) * | 2002-08-15 | 2003-03-27 | Merritt Douthitt Pruitt | Inoculant tolerant fungcidal compositions |
US6884754B1 (en) | 2001-09-28 | 2005-04-26 | Syngenta Crop Protection, Inc. | Aqueous compositions for seed treatment |
US7307043B2 (en) * | 2001-09-28 | 2007-12-11 | Syngenta Crop Protection, Inc. | Aqueous neonicotinoid compositions for seed treatment |
KR100791955B1 (ko) * | 2002-08-14 | 2008-01-04 | 에스케이케미칼주식회사 | 안정한 1,2-벤즈이소티아졸린-3-온 액상 조성물과 이의제조방법 |
DE102006010941A1 (de) * | 2006-03-09 | 2007-09-13 | Clariant International Limited | Biozide Zusammensetzungen |
US7596974B2 (en) | 2006-06-19 | 2009-10-06 | S.C. Johnson & Son, Inc. | Instant stain removing device, formulation and absorbent means |
MX2009000945A (es) * | 2006-07-25 | 2009-02-04 | Dow Global Technologies Inc | Formulaciones biocidas estables, bajo voc, baja viscosidad y metodo para hacer tales formulaciones. |
DE102006045066B4 (de) * | 2006-09-21 | 2010-07-01 | Schülke & Mayr GmbH | Mikrobizide Zubereitung auf der Basis von 1,2-Benzisothiazolin-3-on mit einem Gehalt an aromatischem Alkohol |
DE102006045065A1 (de) * | 2006-09-21 | 2008-03-27 | Schülke & Mayr GmbH | Mikrobizide Zubereitung auf der Basis von 1,2-Benzisothiazolin-3-on |
JP2008163177A (ja) * | 2006-12-28 | 2008-07-17 | Kao Corp | 硫酸エステル塩型陰イオン界面活性剤水溶液用の凍結防止剤 |
JP4944843B2 (ja) * | 2007-07-18 | 2012-06-06 | ローム アンド ハース カンパニー | 殺微生物組成物 |
DE102007037013A1 (de) * | 2007-08-06 | 2009-02-19 | Clariant International Ltd. | Biozide Zusammensetzungen |
TW200932107A (en) * | 2008-01-18 | 2009-08-01 | Dow Global Technologies Inc | Stable, low VOC, low viscous biocidal formulations and method of making such formulations |
CN101298441B (zh) * | 2008-06-20 | 2012-07-25 | 南京大学 | 一种从母液中回收1,2-苯并异噻唑啉-3-酮的方法 |
JP5210360B2 (ja) * | 2009-07-30 | 2013-06-12 | ローム アンド ハース カンパニー | 相乗的殺微生物組成物 |
EP2547326A4 (en) * | 2010-03-15 | 2014-05-14 | Isp Investments Inc | SYNERGISTIC CONSERVATION COMPOSITIONS |
JP5466221B2 (ja) * | 2010-12-29 | 2014-04-09 | ローム アンド ハース カンパニー | 低温安定溶液 |
CN102726421A (zh) * | 2011-03-31 | 2012-10-17 | 住友精化株式会社 | 含有1,2-苯并异噻唑啉-3酮的水性组合物的制备方法 |
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- 1996-07-18 AR ARP960103638A patent/AR002878A1/es active IP Right Grant
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- 1996-07-19 AT AT96111683T patent/ATE211359T1/de not_active IP Right Cessation
- 1996-07-19 ES ES96111683T patent/ES2170822T3/es not_active Expired - Lifetime
- 1996-07-19 EP EP96111683A patent/EP0754407B1/en not_active Expired - Lifetime
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- 1996-07-19 DE DE69618292T patent/DE69618292T2/de not_active Expired - Fee Related
- 1996-07-19 PT PT96111683T patent/PT754407E/pt unknown
- 1996-07-20 KR KR1019960029761A patent/KR100266801B1/ko not_active IP Right Cessation
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- 1996-07-22 JP JP19259196A patent/JP3176847B2/ja not_active Expired - Lifetime
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PT754407E (pt) | 2002-06-28 |
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CA2181605A1 (en) | 1997-01-22 |
AU699020B2 (en) | 1998-11-19 |
CA2181605C (en) | 1999-11-30 |
US5684025A (en) | 1997-11-04 |
EP0754407B1 (en) | 2002-01-02 |
JP3176847B2 (ja) | 2001-06-18 |
AU5833996A (en) | 1997-01-30 |
JPH0952883A (ja) | 1997-02-25 |
EP0754407A3 (en) | 1997-09-17 |
ATE211359T1 (de) | 2002-01-15 |
DE69618292D1 (de) | 2002-02-07 |
KR100266801B1 (ko) | 2000-09-15 |
DE69618292T2 (de) | 2002-08-22 |
AR002878A1 (es) | 1998-04-29 |
US5585033A (en) | 1996-12-17 |
CN1143452A (zh) | 1997-02-26 |
ES2170822T3 (es) | 2002-08-16 |
DK0754407T3 (da) | 2002-04-22 |
BR9601983A (pt) | 1998-10-06 |
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