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    • 22. 发明申请
    • Concentrate composition and process for removing coatings from surfaces such as paint application equipment
    • 浓缩物组合物和方法,用于从涂料应用设备等表面去除涂层
    • US20040259746A1
    • 2004-12-23
    • US10600915
    • 2003-06-20
    • Jonathan N. WarrenPhillip J. Beauchamp
    • C11D001/00
    • C09D9/04C11D1/58C11D3/2072C11D3/2093C11D3/30C11D11/0041
    • A concentrate composition for removing coatings from surfaces such as paint application equipment is provided, which comprises: (a) 0 to 99.5 percent by weight of acetone, methyl acetate and/or water; (b) 0.01 to 35 percent by weight of at least one surfactant selected from pyrrolidone-derived surfactants having substituents containing 6 to 14 carbon atoms and alkoxylated acetylenic compounds; and (c) 0.5 to 90 percent by weight of at least one pH adjusting component selected from ammonia and amines having alkanyl groups, hydroxyalkanyl groups, or aminoalkanyl groups having 1 to 8 carbon atoms. The volatile organic compound (VOC) content of the composition is less than 2.0 lb./gal. Also provided is a process for removing coatings from surfaces comprising diluting the concentrate composition described above with water to form a cleaning solution; and contacting the surfaces with the cleaning solution until coating residues are substantially removed from the surfaces.
    • 提供了一种用于从表面除去涂层的浓缩组合物,例如涂料应用设备,其包括:(a)0至99.5重量%的丙酮,乙酸甲酯和/或水; (b)0.01至35重量%的至少一种选自含有6至14个碳原子的取代基的吡咯烷酮衍生的表面活性剂和烷氧基化炔属化合物的表面活性剂; 和(c)0.5至90重量%的至少一种选自氨和具有烷基,羟烷基或具有1至8个碳原子的氨基烷基的胺的pH调节组分。 组合物的挥发性有机化合物(VOC)含量小于2.0lb./gal。 还提供了从表面除去涂层的方法,包括用水稀释上述浓缩组合物以形成清洁溶液; 并使表面与清洁溶液接触,直到涂层残留物基本上从表面除去。
    • 24. 发明授权
    • Aqueous cleaning composition for cleaning substrates and method of using
same
    • 用于清洁基材的水性清洁组合物及其使用方法
    • US5908819A
    • 1999-06-01
    • US107134
    • 1998-06-30
    • Richard ReynoldsFrank Cala
    • Richard ReynoldsFrank Cala
    • C11D1/10C11D1/58C11D1/65C11D3/28C11D11/00C11D1/66C11D3/33C11D10/02
    • C11D11/0041C11D1/10C11D1/65C11D3/28C11D1/58
    • An alkaline aqueous cleaning composition for cleaning a substrate, e.g., a plastic or metal substrate, contaminated with industrial-type soil contaminants contains (i) an aqueous portion and (ii) an active-ingredient portion composed of (A) an alkalinity-providing agent and (B) a surfactant mixture containing (a) an active concentration of an N-octyl-2-pyrrolidone surfactant and (b) an active concentration of at least one aminocarboxylic acid surfactant. The active-concentration ratio of surfactant (a) to surfactant (b) is such as to provide the cleaning composition with the ability to remove a substantial portion of the contaminants from the substrate. At an active-concentration ratio of surfactant (a) to surfactant (b) of about 2.5:1, the surfactants have a synergistic effect on the industrial-soil-removing ability of the aqueous composition. Cleaning of the substrate with the aqueous cleaning composition involves contacting the substrate with the composition for a period of time sufficient to remove at least a substantial portion of the contaminants from the substrate.
    • 用于清洁被工业类型污染污染物污染的基底(例如塑料或金属基底)的碱性水性清洁组合物包含(i)水性部分和(ii)由(A)碱性提供的活性成分部分 试剂和(B)含有(a)活性浓度的N-辛基-2-吡咯烷酮表面活性剂和(b)至少一种氨基羧酸表面活性剂的活性浓度的表面活性剂混合物。 表面活性剂(a)与表面活性剂(b)的活性 - 浓度比例使得清洁组合物具有从基材中除去大部分污染物的能力。 表面活性剂(a)与表面活性剂(b)的活性 - 浓度比为约2.5:1,表面活性剂对水性组合物的工业除尘能力具有协同效应。 用含水清洁组合物清洗基材包括使基材与组合物接触足以从基材中去除至少大部分污染物的时间。