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    • 3. 发明申请
    • Salts of Dehydroacetic Acid as an Antimicrobial for Plastics
    • 脱氢乙酸作为塑料抗菌剂的盐
    • US20090203812A1
    • 2009-08-13
    • US12370292
    • 2009-02-12
    • Lei RaoJoe KimlerLarry Kent Hall
    • Lei RaoJoe KimlerLarry Kent Hall
    • C08K5/09
    • C08K5/098C08K5/0058
    • A plastic material having an antimicrobial characteristic and the method for making the plastic material is provided. The method includes blending and/or extruding a polymeric composition in a process which includes a temperature of at least about 170° C. The method also includes adding an antimicrobial component to the polymeric composition prior to or during the blending and/or extruding. The antimicrobial component includes a salt of a dehydroacetic acid (DHA) in an amount sufficient to provide the resulting plastic material with an effective antimicrobial characteristic. The antimicrobial component including a salt of DHA is stable at temperatures required for processing polymeric compositions.
    • 提供具有抗菌特性的塑料材料和制造塑料材料的方法。 该方法包括在包括至少约170℃的温度的方法中共混和/或挤出聚合物组合物。该方法还包括在混合和/或挤出之前或期间向聚合物组合物中加入抗微生物组分。 抗微生物组分包括脱氢乙酸(DHA)的盐,其量足以提供所得塑料材料具有有效的抗微生物特性。 包含DHA盐的抗微生物组分在加工聚合物组合物所需的温度下是稳定的。
    • 6. 发明授权
    • Salts of dehydroacetic acid as a pyrithione stabilizer in plastics
    • 脱氢乙酸作为塑料中吡啶硫酮稳定剂的盐
    • US09034943B2
    • 2015-05-19
    • US13258874
    • 2010-03-26
    • Larry Kent HallJoseph KimlerLei Rao
    • Larry Kent HallJoseph KimlerLei Rao
    • A01N43/40A01N25/22
    • A01N43/40A01N25/22A01N2300/00
    • The invention provides a method for preventing discoloration of pyrithione-containing materials, in particular plastic materials or other material such as paints, coatings, adhesives or textiles which are exposed to an outdoor environment. The method is likewise suited for preventing discoloration of other pyrithione-containing materials such as personal care compositions like shampoos. A discoloration inhibitor that includes dehydroacetic acid or a salt thereof is added to the pyrithione-containing material. The discoloration is prevented without the addition of a cyclic organic phosphoric acid ester or an organic phosphite. Use of the discoloration inhibitor does not interfere with the antimicrobial effect of the pyrithione.
    • 本发明提供了防止含吡啶硫酮的材料,特别是塑料材料或暴露于户外环境的其它材料如油漆,涂料,粘合剂或纺织品的变色的方法。 该方法同样适用于防止其它含吡啶硫酮的材料如洗发剂等个人护理组合物变色。 将含有脱氢乙酸或其盐的变色抑制剂加入含吡啶硫酮的材料中。 防止变色,而不加入环状有机磷酸酯或有机亚磷酸酯。 使用变色抑制剂不会影响吡啶硫酮的抗微生物作用。
    • 7. 发明授权
    • Antimicrobial quaternary ammonium compositions with reduced ocular irritation
    • 减少眼睛刺激的抗微生物季铵组合物
    • US06583181B1
    • 2003-06-24
    • US09721523
    • 2000-11-22
    • Michael Yao-Chi ChiangLarry Kent Hall
    • Michael Yao-Chi ChiangLarry Kent Hall
    • A61K3114
    • A61K31/195A01N33/12A61K9/0048A61K31/14A61K33/00A61K33/02A01N37/44A01N25/32A01N2300/00A61K2300/00
    • The present inventors have discovered that electrolytes, such as the tetrasodium salt of ethylenediaminetetraacetic acid (EDTA), reduce the ocular irritation and increase the disinfecting and sanitizing efficacy of compositions containing quaternary ammonium compounds and/or amines. As a result, concentrated solutions containing quaternary ammonium compounds and/or amines of the present invention have low, if any, ocular irritation. Furthermore, use dilutions of the concentrated solutions of the present invention include ingredients which are approved by the U.S. EPA for use on indirect food contact surfaces, unlike disinfecting and sanitizing compositions containing imidazoline compounds. Additionally, the use dilutions exhibit superior efficacy against gram negative and positive bacteria compared to similar compositions which do not contain the electrolyte and remain effective in hard water. The present invention is a concentrate, such as a sanitizing and disinfecting concentrate, comprising from about 0.5 to about 4.0% by weight of a quaternary ammonium compound, an amine, or a combination thereof and from about 2.0 to about 15.0% by weight of electrolyte, based upon 100% total weight of concentrate. The concentrate is generally substantially free of imidazoline compounds. Another embodiment is an ophthalmic solution comprising a quaternary ammonium compound, an amine, or a combination thereof, at least one electrolyte, and, optionally, a biologically active agent.
    • 本发明人已经发现,电解质,例如乙二胺四乙酸(EDTA)的四钠盐,减少眼睛刺激,并增加含有季铵化合物和/或胺的组合物的消毒和消毒功效。 结果,含有本发明的季铵化合物和/或胺的浓缩溶液具有低的眼睛刺激性(如果有的话)。 此外,使用本发明的浓缩溶液的稀释液包括美国EPA批准用于间接食品接触表面的成分,不同于消毒和消毒含有咪唑啉化合物的组合物。 此外,与不含电解质并在硬水中有效的类似组合物相比,使用稀释物对革兰氏阴性细菌和阳性细菌表现出优异的功效。 本发明是一种浓缩物,例如消毒和消毒浓缩物,其包含约0.5至约4.0重量%的季铵化合物,胺或其组合和约2.0至约15.0重量%的电解质 ,基于浓缩物的总重量的100%。 浓缩物通常基本上不含咪唑啉化合物。 另一个实施方案是包含季铵化合物,胺或其组合,至少一种电解质和任选的生物活性剂的眼用溶液。