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公开(公告)号：US07154000B2
公开(公告)日：2006-12-26
申请号：US10652730
申请日：2003-08-29
IPC分类号： C07C59/08
摘要： The preferred embodiments provide for a family of novel compositions to serve as substrates that release hydroxy acid slowly over time. Preferably the hydroxy acid is an α-hydroxy acid, more preferably it is lactic acid. The compositions are preferably made by reaction of poly(lactic acid) with multifunctional alcohols. Also disclosed are formulations based on the compounds and methods of use for both the compositions and the formulations. The preferred use of the compositions and formulations is for bioremediation purposes wherein they provide a time-release source of lactic acid to support the growth and reductive activity of microbes present in a system or medium, such as an aquifer, bioreactor, soil, industrial process, wastestream, body of water, river or well. The microbes destroy or inactivate compounds which are capable of being reduced, such as nitrogen-containing organic compounds, oxygen-containing organic compounds, polyaromatic hydrocarbons, and halogen-containing organic compounds.
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公开(公告)号：US06639098B2
公开(公告)日：2003-10-28
申请号：US10005250
申请日：2001-11-07
IPC分类号： C07C6966
摘要： The preferred embodiments provide for a family of novel compositions to serve as substrates that release hydroxy acid slowly over time. Preferably the hydroxy acid is an &agr;-hydroxy acid, more preferably it is lactic acid. The compositions are preferably made by reaction of poly(lactic acid) with multifunctional alcohols. Also disclosed are formulations based on the compounds and methods of use for both the compositions and the formulations. The preferred use of the compositions and formulations is for bioremediation purposes wherein they provide a time-release source of lactic acid to support the growth and reductive activity of microbes present in a system or medium, such as an aquifer, bioreactor, soil, industrial process, wastestream, body of water, river or well. The microbes destroy or inactivate compounds which are capable of being reduced, such as nitrogen-containing organic compounds, oxygen-containing organic compounds, polyaromatic hydrocarbons, and halogen-containing organic compounds.
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公开(公告)号：US06420594B1
公开(公告)日：2002-07-16
申请号：US09190630
申请日：1998-11-12
IPC分类号： C07C6966
摘要： The present invention provides for a family of novel compositions to serve as substrates that release hydroxy acid slowly over time. Preferably the hydroxy acid is an &agr;-hydroxy acid, more preferably it is lactic acid. The compositions are preferably made by reaction of poly(lactic acid) with multifunctional alcohols. Also disclosed are formulations based on the compounds and methods of use for both the compositions and the formulations. The preferred use of the compositions and formulations of the present invention is for bioremediation purposes wherein they provide a time-release source of lactic acid to support the growth and reductive activity of microbes present in a system or medium, such as an aquifer, bioreactor, soil, industrial process, wastestream, body of water, river or well. The microbes destroy or inactivate compounds which are capable of being reduced, such as nitrogen-containing organic compounds, oxygen-containing organic compounds, polyaromatic hydrocarbons, and halogen-containing organic compounds.
摘要翻译： 本发明提供了一组新型组合物，其用作缓慢释放羟基酸的底物。 优选地，羟基酸是α-羟基酸，更优选地是乳酸。 组合物优选通过聚（乳酸）与多官能醇的反应来制备。 还公开了基于化合物和用于组合物和制剂的两种方法的制剂。 本发明的组合物和制剂的优选用途是用于生物修复目的，其中它们提供乳酸的时间释放源，以支持存在于系统或介质如含水层，生物反应器中的微生物的生长和还原活性， 土壤，工业过程，废水，水体，河流或井。 微生物破坏或灭活能够还原的化合物，例如含氮有机化合物，含氧有机化合物，多芳族烃和含卤素的有机化合物。
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