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公开(公告)号：US20030060383A1
公开(公告)日：2003-03-27
申请号：US10243717
申请日：2002-09-13
IPC分类号： C11D001/00
CPC分类号： C11D7/267 , C11D7/08 , C11D7/265 , C11D7/266 , C11D7/5022
摘要： Provided herein are compositions containing aqueous solutions of alkylene carbonates which have been stabilized by the presence of an effective hydrolysis-inhibiting amount of an added chemical substance. By the present invention, aqueous solutions of alkylene carbonates previously unsuitable for long-term transportation and storage are rendered stable.
摘要翻译： 本文提供了含有通过存在有效的水解抑制量的添加的化学物质来稳定的碳酸亚烷基酯水溶液的组合物。 通过本发明，以前不适于长期运输和储存的碳酸亚烷基酯水溶液变得稳定。
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公开(公告)号：US20020142928A1
公开(公告)日：2002-10-03
申请号：US10061565
申请日：2002-02-01
IPC分类号： C11D001/00
CPC分类号： C11D3/2093 , C09D9/00 , C11D3/3947 , C11D3/43 , C11D7/263 , C11D7/264
摘要： This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrogen peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, this invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broad respect, this invention is a process for removing paint, comprising: applying a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. Advantageously, the composition of this invention may include a dibasic ester (DBE).
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公开(公告)号：US20020111284A1
公开(公告)日：2002-08-15
申请号：US10061536
申请日：2002-02-01
IPC分类号： C11D001/00
CPC分类号： C09D9/00 , C09D9/005 , C11D3/2093 , C11D3/3947 , C11D3/43 , C11D7/263 , C11D7/264 , C11D7/266 , C11D7/34 , C11D7/5009
摘要： A composition useful as a paint remover which may include a carbonate, a dibasic ester and a mono-ester. The paint stripping composition may also contain an organic sulfur-containing compound such as dimethyl sulfoxide (DMSO), a glycol ether, a ketone, or combination thereof. The composition may be used in a process for removing paint by applying it to a painted surface. A degreasing composition is also disclosed which may comprise a carbonate and a alkyl-substituted cyclo-alkane such as naphthene. The compositions have several important attributes, including low toxicity and high efficacy in removing paint and coatings.
摘要翻译： 可用作除漆剂的组合物，其可以包括碳酸酯，二元酯和单酯。 涂料剥离组合物还可以含有有机含硫化合物如二甲基亚砜（DMSO），二醇醚，酮或其组合。 该组合物可以用于通过将其施涂到涂漆表面上去除涂料的方法中。 还公开了可以包含碳酸酯和烷基取代的环烷烃如环烷烃的脱脂组合物。 该组合物具有几个重要的特性，包括低毒性和高效去除油漆和涂料。
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公开(公告)号：US20020179426A1
公开(公告)日：2002-12-05
申请号：US10127286
申请日：2002-04-22
发明人： James R. Machac JR. , Edward T. Marquis , Susan A. Woodrum , Ralph M. DiGuilio , Mike W. McKinney
IPC分类号： B01D003/34 , C07D493/00
CPC分类号： C07D317/36 , B01D3/34 , C07D317/38 , Y10S203/11
摘要： Identified herein are inhibitors which may be added to the boiling pot portion of a distillation apparatus prior to or during the distillation of an alkylene carbonate. The inhibitors retard the occurrence of undesirable reactions of the alkylene carbonate with itself and impurities present in the pot, and hence greatly reduce or minimize the formation of undesirable by-products which otherwise tend to reduce overall yields of alkylene carbonate recovered by the distillation process. Higher distillation temperatures at higher pressures over the prior art are possible without attendant losses of significant amounts of recovered alkylene carbonate, which confers heretofore unseen flexibility in alkylene carbonate distillation.
摘要翻译： 本文所述的是在碳酸亚烷基酯蒸馏之前或期间可以加入到蒸馏装置的沸腾锅部分的抑制剂。 抑制剂阻碍碳酸亚烃酯本身和存在于罐中的杂质的不期望的反应的发生，因此大大减少或最小化不期望的副产物的形成，否则倾向于降低由蒸馏过程回收的碳酸亚烃酯的总产率。 与现有技术相比，在较高压力下的较高蒸馏温度是可能的，而不需要大量回收的碳酸亚烃酯的损失，这在碳酸亚烷基酯蒸馏中赋予迄今未见的灵活性。
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公开(公告)号：US20020147349A1
公开(公告)日：2002-10-10
申请号：US10071169
申请日：2002-03-29
发明人： James R. Machac JR. , Edward T. Marquis , Ronald L. Savage , Susan A. Woodrum , John R. Sanderson
IPC分类号： C07D317/08 , B01D003/34
CPC分类号： C07D317/38 , C07D317/36
摘要： This invention concerns a process to provide high purity alkylene carbonate though use of multiple distillations wherein the unused fractions are recycled to the reactor. The high purity alkylene carbonate may be further purified by use of carbon to produce electrochromic or photochromic grade alkylene carbonate by reducing its UV absorbance.
摘要翻译： 本发明涉及通过使用多个蒸馏提供高纯度碳酸亚烷基酯的方法，其中将未使用的馏分再循环到反应器中。 可以通过使用碳来进一步纯化高纯度碳酸亚烃，以通过降低其UV吸光度来产生电致变色或光致变色级碳酸亚烃酯。
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