CN1127018A - Process for the bleaching of fabrics - Google Patents
Process for the bleaching of fabrics Download PDFInfo
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- CN1127018A CN1127018A CN94192731A CN94192731A CN1127018A CN 1127018 A CN1127018 A CN 1127018A CN 94192731 A CN94192731 A CN 94192731A CN 94192731 A CN94192731 A CN 94192731A CN 1127018 A CN1127018 A CN 1127018A
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- composition
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- triethyl citrate
- acetyl triethyl
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic compounds
- C11D3/391—Oxygen-containing compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
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Abstract
Description
技术领域
本发明涉及漂白织物的过程以及用于织物的预处理组合物。This invention relates to processes for bleaching fabrics and pretreatment compositions for fabrics.
背景技术 Background technique
在本领域中已广泛讨论过漂白织物的过程。已设计了不同的漂白组合物用于此目的，它们可分为两类：过氧化物漂白组合物(peroxidebleaching composition)和次氯酸盐漂白组合物(hypochloritebleaching composition)。过氧化物漂白较之次氯酸盐漂白具有优势：一般认为它对织物的颜色更为安全并且对白色织物不泛黄。The process of bleaching fabrics has been extensively discussed in the art. Different bleaching compositions have been devised for this purpose and they can be divided into two categories: peroxide bleaching compositions and hypochlorite bleaching compositions. Peroxide bleaching has advantages over hypochlorite bleaching: it is generally considered safer for the color of fabrics and does not yellow white fabrics.
过氧漂白剂(peroxygen bleach)的主要缺点是在当今洗衣操作常见的低温下它们不如氯漂白剂(chlorine bleach)活泼。因而过氧漂白剂活化剂在本领域中已广泛地被关注，并且已被开发出。一类具体的过氧漂白剂活化剂用过酸前体构成，过酸前体与过氧化氢反应形成过酸，这就是被活化的漂白物。The main disadvantage of peroxygen bleach is that they are not as reactive as chlorine bleach at the low temperatures common in today's laundry operations. Thus peroxygen bleach activators have been widely noticed in the art and have been developed. A specific class of peroxygen bleach activators consists of a peracid precursor which reacts with hydrogen peroxide to form a peracid which is the activated bleach.
在本领域中，还已知在织物洗涤前对它们进行常说的织物预处理这样一种织物处理过程。在这些预处理过程中，将有效量的一种液体组合物或膏状组合物施于织物的一个部分上，一般是严重玷污的部分，然后在水性洗液(aqueous wash liquor)中洗涤织物。Also known in the art is the so-called fabric pretreatment of fabrics before they are washed. In these pretreatments, an effective amount of a liquid composition or a paste composition is applied to a portion of the fabric, generally a heavily soiled portion, and the fabric is washed in an aqueous wash liquor.
现已发现，如果采用含有乙酰柠檬酸三乙酯作为过酸前体的液体组合物或膏状组合物，则结合预处理操作过程可获得特别有效的织物漂白作用。It has now been found that particularly effective fabric bleaching can be obtained in combination with a pretreatment operation if liquid or paste compositions containing acetyl triethyl citrate as peracid precursor are employed.
乙酰柠檬酸三乙酯在洗衣漂白过程中作为过酸前体已公开于共同未决的PCT申请US 92-10391。The use of acetyl triethyl citrate as a peracid precursor in laundry bleaching has been disclosed in co-pending PCT application US 92-10391.
发明概述Invention overview
本发明是一种漂白织物的方法，包含下列步骤：将有效量的含有乙酰柠檬酸三乙酯的液体组合物或膏状组合物施加至所述织物的至少一部分上，然后在水性洗液中洗涤所述织物，其中在所述液体组合物或膏状组合物中，或者在所述洗液中提供有有效量的过氧化氢。The present invention is a method for bleaching fabrics, comprising the steps of: applying an effective amount of a liquid composition or a paste composition containing acetyl triethyl citrate to at least a part of the fabric, and then Laundering of said fabric wherein an effective amount of hydrogen peroxide is provided in said liquid or cream composition, or in said wash liquor.
发明的详细描述Detailed description of the invention
本发明包括使用含有乙酰柠檬酸三乙酯的液体组合物或膏状组合物。所谓液体或膏状在本发明中是指能在织物洗涤前方便地施加至织物上的组合物。理想的是，用于本发明方法的组合物不应稠至难于施加到织物上，也不稀至影响到在织物上的精确施加。因此，适用于本发明的组合物为稀液体至凝胶状。本发明优选的组合物在50rpm、20℃时的粘度为50cps～10,000cps。The present invention involves the use of liquid or paste compositions containing acetyl triethyl citrate. By liquid or cream in the present invention is meant a composition which can be conveniently applied to fabrics prior to laundering. Ideally, the compositions used in the methods of the present invention should not be so thick that they are difficult to apply to fabrics, nor so thin that precise application to fabrics is affected. Accordingly, compositions suitable for use in the present invention are in the form of thin liquids to gels. Preferred compositions of the present invention have a viscosity of 50 cps to 10,000 cps at 50 rpm at 20°C.
作为本发明的一个必要特征，本发明所用组合物必须含有有效量的乙酰柠檬酸三乙酯。乙酰柠檬酸三乙酯是已知的化学品，并且可购得，例如可从Morflex以Citroflex商品名购得，但它只是在共同未决的PCT申请US92-10391中才第一次作为漂白剂活化剂公开。在该专利申请中，乙酰柠檬酸三乙酯提供了许多优点，尤其是在液体漂白组合物中较之现有的过酸前体它表现出极好的储存稳定性。另外，乙酰柠檬酸三乙酯具有这样的特点，即它为一种基本不溶于水的液体过酸前体，经过氧化氢水解(perhydrolyse)成为基本上为水溶性的过酸。我们已发现这一特点使得在本发明中使用乙酰柠檬酸三乙酯特别有利。As an essential feature of the present invention, the compositions used in the present invention must contain an effective amount of acetyl triethyl citrate. Acetyl triethyl citrate is a known chemical and is commercially available, for example from Morflex under the tradename Citroflex, but it was only first introduced as a bleaching agent in co-pending PCT application US92-10391 Activators are disclosed. In this patent application, acetyl triethyl citrate offers a number of advantages, in particular it exhibits excellent storage stability in liquid bleaching compositions compared to prior peracid precursors. In addition, acetyl triethyl citrate is characterized in that it is a substantially water-insoluble liquid peracid precursor which undergoes perhydrolyse to a substantially water-soluble peracid. We have found that this feature makes the use of acetyl triethyl citrate particularly advantageous in the present invention.
确实，由于乙酰柠檬酸三乙酯为基本上不溶于水的液体过酸前体，在预处理操作过程中，它易结合至施加它们的织物表面和/或污渍上，而不是溶解在洗涤织物的水性洗液中，从而促进表面漂白而不是促进溶液漂白，也就是说，乙酰柠檬酸三乙酯过氧化氢水解为过乙酸发生在织物表面和/或污渍处而不是发生在洗液中，提高了漂白过程的总效率。因而使过酸前体和织物，特别是和其玷污部分的结合达到最大。当然，当合成织物被预处理时，更有利于这种效果，这是因为合成织物具有疏水性。Indeed, since acetyl triethyl citrate is a substantially water-insoluble liquid peracid precursor, it tends to bind to the fabric surface and/or stains to which they are applied during pretreatment operations rather than dissolve in the washed fabrics in aqueous washes, thereby promoting surface bleaching rather than solution bleaching, that is, hydrolysis of acetyl triethyl citrate hydroperoxide to peracetic acid occurs on the fabric surface and/or at the stain rather than in the wash liquor, The overall efficiency of the bleaching process is increased. Binding of the peracid precursor to the fabric, especially the soiled portion thereof, is thus maximized. Of course, this effect is more favorable when the synthetic fabric is pretreated, because of the hydrophobic nature of the synthetic fabric.
因此，在本发明的情况中，织物的漂白几乎不发生在预处理操作中，而是发生在后续步骤中，即在已预处理的织物浸入水性洗液的步骤中。换言之，本发明不仅在于使用乙酰柠檬酸三乙酯作为漂白剂活化剂，还在于在预处理操作中使用乙酰柠檬酸三乙酯，由此在后续步骤，即织物浸入水性洗液的步骤中使织物的漂白最优化。因此，在最广的方面，本发明包括将乙酰柠檬酸三乙酯用于制备将用于织物预处理过程的液体组合物或膏状组合物。Thus, in the case of the present invention, the bleaching of the fabric hardly takes place in the pretreatment operation, but in a subsequent step, ie in the step of immersing the pretreated fabric in an aqueous wash. In other words, the present invention consists not only in the use of acetyl triethyl citrate as a bleach activator, but also in the use of acetyl triethyl citrate in a pretreatment operation whereby in the subsequent step, i.e. immersion of the fabric in an aqueous wash solution, the Optimal bleaching of fabrics. Thus, in its broadest aspect, the present invention encompasses the use of acetyl triethyl citrate for the preparation of liquid or paste compositions to be used in fabric pretreatment processes.
此外，乙酰柠檬酸三乙酯经过氧化氢水解为过乙酸，过乙酸为一种基本水溶性的过酸。因此产生的过酸立即溶于洗液中。同样在乙酰柠檬酸三乙酯过氧化氢水解中产生的第二种组分柠檬酸三乙酯也是水溶性的。故而本发明的另一个优点是所产生的过酸不是永久结合在织物上，并且所有过氧化氢水解反应化合物都溶解在洗液中。这一优点意味着易从织物上漂洗掉过酸。In addition, acetyl triethyl citrate is hydrolyzed by hydrogen oxide to peracetic acid, which is a substantially water-soluble peracid. The peracid thus produced is immediately dissolved in the wash solution. Also triethyl citrate, the second component produced in the hydroperoxide hydrolysis of acetyl triethyl citrate, is also water soluble. Thus another advantage of the present invention is that the peracid produced is not permanently bound to the fabric and all of the hydroperoxide hydrolysis reaction compounds are dissolved in the wash liquor. This advantage means that the peracid is easily rinsed off the fabric.
还有，我们已发现乙酰柠檬酸三乙酯还起非水溶性溶剂的作用溶解污渍，由此为在后续的所述织物浸入所述洗液的步骤中再清洁织物作准备并使之易于进行。这构成以本发明的预处理方式使用乙酰柠檬酸三乙酯的另一优点。Also, we have found that acetyl triethyl citrate also acts as a water-insoluble solvent to dissolve stains, thereby preparing and facilitating re-cleaning of fabrics in the subsequent step of immersing said fabrics in said wash solution. . This constitutes a further advantage of using acetyl triethyl citrate in the pretreatment mode of the present invention.
因此，本发明所用的组合物含有占组合物总重量的0.5～50％乙酰柠檬酸三乙酯，优选2～20％。至于在本发明中的组分量，有效量指确保织物漂白的乙酰柠檬酸三乙酯和过氧化氢的量。Therefore, the composition used in the present invention contains 0.5-50% of acetyl triethyl citrate, preferably 2-20%, based on the total weight of the composition. As for the amounts of components in the present invention, effective amounts refer to the amounts of acetyl triethyl citrate and hydrogen peroxide that ensure fabric bleaching.
在本发明的方法中，必须供入过氧化氢，以使乙酰柠檬酸三乙酯过氧化氢水解为过乙酸。过氧化氢可在预处理组合物中供入，即与乙酰柠檬酸三乙酯一起供入，也可以在洗液中供入。最方便的是用预处理组合物供入过氧化氢。同样，应领会的是，过氧化氢可直接以过氧化氢供入，也可以以过氧化氢源(例如过硼酸盐、过碳酸盐等)形式间接供入。因此，在本发明的一个优选实施方案中，适用于本发明的预处理组合物含有占组合物总重量的0.5～30％的过氧化氢，优选2～20％。在这样一个优选实施方案中，为确保组合物最优的化学稳定性，希望在中等酸性范围配制预处理组合物，即从pH1至6，优选3至5。In the process of the invention, hydrogen peroxide must be fed in order to hydrolyze acetyl triethyl citrate hydroperoxide to peracetic acid. Hydrogen peroxide can be supplied in the pretreatment composition, ie together with acetyl triethyl citrate, or in the wash liquor. Most conveniently the hydrogen peroxide is fed with a pretreatment composition. Likewise, it should be appreciated that hydrogen peroxide may be fed directly as hydrogen peroxide or indirectly as a source of hydrogen peroxide (eg, perborate, percarbonate, etc.). Therefore, in a preferred embodiment of the present invention, the pretreatment composition suitable for use in the present invention contains 0.5 to 30% of hydrogen peroxide, preferably 2 to 20%, by weight of the total composition. In such a preferred embodiment, it is desirable to formulate the pretreatment composition in the moderately acidic range, ie from pH 1 to 6, preferably 3 to 5, in order to ensure optimum chemical stability of the composition.
为充分利用本发明方法的预处理步骤，适用于本发明的组合物还可含有各种任选成分。优选的任选成分包括表面活性剂，例如在本领域中已公开过那些，其总含量为占组合物总重量的4～85％，优选8～60％。适用于本发明的优选表面活性剂为阴离子和非离子表面活性剂，一般为烷基苯磺酸盐和脂肪醇乙氧基化物。其他适用的任选成分包括助洗剂、酶、去污剂、染料、遮光剂、香料和其他微量成分。Compositions suitable for use in the present invention may also contain various optional ingredients to take advantage of the pretreatment step of the method of the present invention. Preferred optional ingredients include surfactants, such as those disclosed in the art, in a total content of 4-85%, preferably 8-60%, by weight of the total composition. Preferred surfactants for use herein are anionic and nonionic surfactants, typically alkylbenzene sulfonates and fatty alcohol ethoxylates. Other suitable optional ingredients include builders, enzymes, detergents, dyes, sunscreens, fragrances and other minor ingredients.
因为乙酰柠檬酸三乙酯是非水溶性的，因此特别有利的是以至少两种非离子表面活性剂(一种亲水，一种疏水)的水性悬浮液的形式配制含有它的组合物，其中两种表面活性剂具有不同的HLB值，并且HLB值差别至少为3。具有不同HLB的非离子表面活性剂可通过选择具有不同烷氧基化度的烷氧基化的醇而方便地选取。这样的组合物一般包括占组合物总重量10～95％的水，优选去离子水，并且优选为60-80％。为达到最佳稳定性，当组合物中含过氧化氢时，优选在pH0.5至6配制。这些组合物已在共同未决的申请EP92870188.7中作了更为广泛的介绍，它们使得可配制还可含有过氧化氢的物理上和化学上均稳定的液体组合物。Since acetyl triethyl citrate is water insoluble, it is particularly advantageous to formulate compositions containing it in the form of an aqueous suspension of at least two nonionic surfactants, one hydrophilic and one hydrophobic, wherein The two surfactants have different HLB values and the HLB values differ by at least 3. Nonionic surfactants with different HLBs can be conveniently selected by selecting alkoxylated alcohols with different degrees of alkoxylation. Such compositions generally comprise from 10 to 95% by weight of the total composition of water, preferably deionized water, and preferably from 60 to 80%. For optimum stability, when hydrogen peroxide is included in the composition, it is preferably formulated at a pH of 0.5 to 6. These compositions, which have been described more extensively in co-pending application EP92870188.7, allow the formulation of physically and chemically stable liquid compositions which may also contain hydrogen peroxide.
在本发明的方法中，含有前述乙酰柠檬酸三乙酯的所述液体组合物或膏状组合物施加到所述织物的至少一部分上，并且所述织物接着浸入水性洗液中。乙酰柠檬酸三乙酯必须确实在所述织物浸入水性洗液前施加到织物上，以使乙酰柠檬酸三乙酯以最佳方式结合到织物上。In the method of the present invention, the liquid composition or paste composition containing the aforementioned acetyl triethyl citrate is applied to at least a part of the fabric, and the fabric is then immersed in an aqueous washing solution. Acetyl triethyl citrate must actually be applied to the fabric before said fabric is immersed in an aqueous wash so that the acetyl triethyl citrate is optimally bound to the fabric.
本发明洗液的唯一关键点是它应该提供pH大于6的水性介质。对于引发过氧化氢水解反应，这样的pH确实是必要的。任选地，但优选的是所述液液还含有0.5～20克/升的常规洗涤成分，这些成分是本领域公知的，包括表面活性剂、助洗剂、去污剂、酶、漂白组分等等。适宜的洗液通过以手洗或机洗的推荐剂量使用常规可购得的洗衣洗涤剂适宜获得。本发明不限于这两种洗涤方式。The only critical point of the lotion of the present invention is that it should provide an aqueous medium with a pH greater than 6. Such a pH is indeed necessary to initiate the hydrolysis reaction of hydrogen peroxide. Optionally, but preferably, the liquid also contains 0.5 to 20 g/L of conventional detergent ingredients, which are well known in the art, including surfactants, builders, detergents, enzymes, bleaching groups points and so on. A suitable lotion is suitably obtained by using a conventional commercially available laundry detergent at the recommended dosage for hand or machine washing. The present invention is not limited to these two washing modes.
在本发明的一个优选实施方案中，使预处理组合物留在织物上一定时间，一般约2分钟至20分钟，然后将织物浸入洗液中。这样的实施方案确保乙酰柠檬酸三乙酯以最优方式结合至织物上，并且所述预处理组合物的其他组分(如果有的话)也起作用。In a preferred embodiment of the invention, the pretreatment composition is left on the fabric for a period of time, typically from about 2 minutes to 20 minutes, before the fabric is immersed in the wash liquor. Such an embodiment ensures that the acetyl triethyl citrate is bound to the fabric in an optimal manner and that the other components of the pretreatment composition, if any, also play a role.
实施例Example
本发明的组合物用作预处理剂，包括下述量的下列组分。实施例1The composition of the present invention is used as a pretreatment agent and comprises the following components in the amounts stated below. Example 1
下列组合物用作预处理剂，它以下述比例包括下列成分。The following composition was used as a pretreatment agent, comprising the following ingredients in the following proportions.
Dobanol 91-10 5.0％Dobanol 91-10 5.0%
Dobanol 23-2 8.0％Dobanol 23-2 8.0%
乙酰柠檬酸三乙酯 6.0％Acetyl triethyl citrate 6.0%
H2O2 7.5％ H2O2 7.5 %
柠檬酸 直至pH4Citric acid until pH4
水和微量成分 直至100％Water and trace ingredients up to 100%
将组合物施加至玷污的织物上，并使之作用10分钟。然后在“San Giorgio Ghibli 6”型洗衣机中同时加入180毫升以ArielLiquid商品名出售的液体洗涤剂组合物洗涤织物，设定40℃。实施例2The composition is applied to the stained fabric and allowed to work for 10 minutes. The fabrics were then washed in a "San Giorgio Ghibli 6" washing machine, set at 40°C, while adding 180 ml of a liquid detergent composition sold under the trade name Ariel Liquid. Example 2
下列组合物用作预处理剂，包括下述比例的下列成分。The following compositions were used as a pretreatment agent, comprising the following ingredients in the proportions described below.
Dobanol 45-7 6.0％Dobanol 45-7 6.0%
Dobanol 91-10 3.0％Dobanol 91-10 3.0%
Dobanol 23-2 6.0％Dobanol 23-2 6.0%
乙酰柠檬酸三乙酯 10.0％Acetyl triethyl citrate 10.0%
柠檬酸 直至pH4Citric acid until pH4
水和微量组分 直至100％Water and minor components up to 100%
将组合物施加到玷污的织物上，并使之作用15分钟。然后在“Rex mod.R 35”型洗衣机中采用150克粉状洗涤剂组合物洗涤织物，设定55℃，洗涤剂以Dash商品名购得，并含有过硼酸盐漂白剂。The composition was applied to the stained fabric and allowed to work for 15 minutes. The fabrics were then washed in a "Rex mod. R 35" washing machine using 150 g of a powdered detergent composition, commercially available under the trade name Dash, and containing perborate bleach, set at 55°C.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93870102.6 | 1993-06-09 | ||
| EP93870102A EP0629693B1 (en) | 1993-06-09 | 1993-06-09 | Process for the bleaching of fabrics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1127018A true CN1127018A (en) | 1996-07-17 |
Family
ID=8215349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94192731A Pending CN1127018A (en) | 1993-06-09 | 1994-05-24 | Process for the bleaching of fabrics |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0629693B1 (en) |
| JP (1) | JPH09500424A (en) |
| CN (1) | CN1127018A (en) |
| AT (1) | ATE169953T1 (en) |
| AU (1) | AU694735B2 (en) |
| BR (1) | BR9406769A (en) |
| CA (1) | CA2164816A1 (en) |
| CZ (1) | CZ325095A3 (en) |
| DE (1) | DE69320462T2 (en) |
| ES (1) | ES2121982T3 (en) |
| MA (1) | MA23220A1 (en) |
| NZ (1) | NZ267309A (en) |
| WO (1) | WO1994029509A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69525526T2 (en) * | 1995-03-27 | 2002-10-31 | The Procter & Gamble Company, Cincinnati | Liquid activated bleaching compositions |
| EP0776966B1 (en) | 1995-12-02 | 2002-09-11 | The Procter & Gamble Company | Liquid bleaching compositions packaged in spray-type dispenser and a process for pretreating fabrics therewith |
| ATE274045T1 (en) * | 1996-09-13 | 2004-09-15 | Procter & Gamble | PEROXYGEN BLEACH CONTAINING AMINOTRI(METHYLENEPHOSPHONIC ACID) (ATMP), FOR THE PRETREATMENT OF TISSUES |
| EP0829532B1 (en) | 1996-09-13 | 2003-05-02 | The Procter & Gamble Company | Laundry bleaching processes and compositions |
| EP1496104B1 (en) * | 2003-07-08 | 2008-05-07 | The Procter & Gamble Company | Liquid activator composition |
| US8809392B2 (en) | 2008-03-28 | 2014-08-19 | Ecolab Usa Inc. | Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents |
| BRPI0907918B1 (en) | 2008-03-28 | 2018-07-24 | Ecolab Inc. | SULFOPEROXIC CARBOXYLIC ACIDS, THEIR PREPARATION AND METHODS OF USE AS AN ANTIMICROBYANES |
| US12203056B2 (en) | 2008-03-28 | 2025-01-21 | Ecolab Usa Inc. | Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents |
| US8871807B2 (en) | 2008-03-28 | 2014-10-28 | Ecolab Usa Inc. | Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids |
| WO2012090124A2 (en) | 2010-12-29 | 2012-07-05 | Ecolab Usa Inc. | IN SITU GENERATION OF PEROXYCARBOXYLIC ACIDS AT ALKALINE pH, AND METHODS OF USE THEREOF |
| ES2643133T3 (en) | 2010-12-29 | 2017-11-21 | Ecolab Usa Inc. | Generation of peroxycarboxylic acids at alkaline pH and their use as textile and antimicrobial bleaching agents |
| US9321664B2 (en) | 2011-12-20 | 2016-04-26 | Ecolab Usa Inc. | Stable percarboxylic acid compositions and uses thereof |
| CA2867565C (en) | 2012-03-30 | 2021-01-19 | Victor KEASLER | Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water |
| US8822719B1 (en) | 2013-03-05 | 2014-09-02 | Ecolab Usa Inc. | Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring |
| US10165774B2 (en) | 2013-03-05 | 2019-01-01 | Ecolab Usa Inc. | Defoamer useful in a peracid composition with anionic surfactants |
| US20140256811A1 (en) | 2013-03-05 | 2014-09-11 | Ecolab Usa Inc. | Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids |
| EP3841059A1 (en) | 2018-08-22 | 2021-06-30 | Ecolab USA Inc. | Hydrogen peroxide and peracid stabilization with molecules based on a pyridine carboxylic acid at c-3, -4 or -5 |
| US12096768B2 (en) | 2019-08-07 | 2024-09-24 | Ecolab Usa Inc. | Polymeric and solid-supported chelators for stabilization of peracid-containing compositions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3833721A (en) * | 1972-07-14 | 1974-09-03 | Gillette Co | Astringent compositions |
| DE2418338B2 (en) * | 1974-04-16 | 1978-09-28 | Henkel Kgaa, 4000 Duesseldorf | Use of esters of citric acid and / or acetylcitric acid in anhydrous cosmetic preparations |
| GB1589866A (en) * | 1976-08-20 | 1981-05-20 | Unilever Ltd | Detergent bars for personal washing |
| US4412934A (en) * | 1982-06-30 | 1983-11-01 | The Procter & Gamble Company | Bleaching compositions |
| US5194250A (en) * | 1988-06-25 | 1993-03-16 | Beecham Group P.L.C. | Compositions |
| EP0359710B1 (en) * | 1988-09-16 | 1993-06-16 | Ciba-Geigy Ag | Optical brightening agents |
| EP0396287A3 (en) * | 1989-05-04 | 1991-10-02 | The Clorox Company | Method and product for enhanced bleaching with in situ peracid formation |
| TR27620A (en) * | 1991-12-13 | 1995-06-13 | Procter & Gamble | Encapsulation of liquids in micro-organisms. |
| WO1993012067A1 (en) * | 1991-12-13 | 1993-06-24 | The Procter & Gamble Company | Acylated citrate esters as peracid precursors |
| EP0598170B1 (en) * | 1992-11-16 | 1998-02-04 | The Procter & Gamble Company | Cleaning and bleaching compositions |
-
1993
- 1993-06-09 AT AT93870102T patent/ATE169953T1/en not_active IP Right Cessation
- 1993-06-09 EP EP93870102A patent/EP0629693B1/en not_active Expired - Lifetime
- 1993-06-09 ES ES93870102T patent/ES2121982T3/en not_active Expired - Lifetime
- 1993-06-09 DE DE69320462T patent/DE69320462T2/en not_active Expired - Fee Related
-
1994
- 1994-05-24 WO PCT/US1994/005817 patent/WO1994029509A1/en not_active Ceased
- 1994-05-24 AU AU69566/94A patent/AU694735B2/en not_active Ceased
- 1994-05-24 BR BR9406769A patent/BR9406769A/en not_active Application Discontinuation
- 1994-05-24 CZ CZ953250A patent/CZ325095A3/en unknown
- 1994-05-24 CA CA002164816A patent/CA2164816A1/en not_active Abandoned
- 1994-05-24 JP JP7501843A patent/JPH09500424A/en active Pending
- 1994-05-24 NZ NZ267309A patent/NZ267309A/en unknown
- 1994-05-24 CN CN94192731A patent/CN1127018A/en active Pending
- 1994-06-08 MA MA23533A patent/MA23220A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU694735B2 (en) | 1998-07-30 |
| ATE169953T1 (en) | 1998-09-15 |
| CA2164816A1 (en) | 1994-12-22 |
| ES2121982T3 (en) | 1998-12-16 |
| MA23220A1 (en) | 1994-12-31 |
| CZ325095A3 (en) | 1996-03-13 |
| DE69320462T2 (en) | 1999-04-22 |
| NZ267309A (en) | 1998-02-26 |
| AU6956694A (en) | 1995-01-03 |
| WO1994029509A1 (en) | 1994-12-22 |
| EP0629693B1 (en) | 1998-08-19 |
| JPH09500424A (en) | 1997-01-14 |
| EP0629693A1 (en) | 1994-12-21 |
| DE69320462D1 (en) | 1998-09-24 |
| BR9406769A (en) | 1995-02-27 |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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