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    • 1. 发明申请
    • IN SITU FORMATION OF CHLORIDE SEQUESTERING COMPOUNDS
    • 形成氯化物序列化合物
    • WO2006098809A3
    • 2007-12-13
    • PCT/US2006002455
    • 2006-01-25
    • BROWN PAUL W
    • BROWN PAUL W
    • C04B40/00C04B14/00C04B22/08C04B28/02
    • C04B22/06C04B22/085C04B28/02C04B2103/0067C04B2103/0086C04B2103/606C04B2111/26C23F11/00C04B22/064C04B32/02C04B40/0028C04B2103/0014C04B22/0093
    • The present invention provides methods and compounds for the in situ formation in concrete of chloride sequestering compounds that resist corrosion of metals contained within the concrete. These chloride sequestering compounds may include, but are not limited to, compounds having the formula [insert formula here] and [insert formula here], where x ranges from about 0 to 1.4 and n ranges from about 8 to 24. In one embodiment, at least one Fe-containing additive is introduced into cement, and at least one anion-containing additive is introduced into mixing water. When the cement and mixing water are combined to create fresh concrete, the additives react to form chloride sequestering compounds. In another embodiment, the additives are introduced or mixed directly into fresh concrete that has already been formed, where they react to create chloride-sequestering compounds. "In situ" formation refers to the creation of a chloride sequestering compound within concrete.
    • 本发明提供了用于在混凝土中原位形成氯化物螯合化合物的方法和化合物,其阻止混凝土中所含金属的腐蚀。 这些氯化物螯合化合物可以包括但不限于具有式[此处插入式]和[在此插入式“]的化合物,其中x为约0至1.4,n为约8至24。在一个实施方案中, 将至少一种含Fe添加剂引入水泥中,并将至少一种含阴离子的添加​​剂引入混合水中。 当混合水和混合水混合生成新鲜混凝土时,添加剂反应形成氯化物螯合化合物。 在另一个实施方案中,将添加剂直接引入或混合到已经形成的新鲜混凝土中,其中它们反应以产生氯化物螯合化合物。 “原位”形成是指在混凝土内产生氯化物螯合化合物。
    • 2. 发明申请
    • PORE REDUCING TECHNOLOGY FOR CONCRETE
    • 混凝土减水技术
    • WO2007001874A3
    • 2007-04-05
    • PCT/US2006023273
    • 2006-06-15
    • BROWN PAUL W
    • BROWN PAUL W
    • C04B7/00
    • C04B28/18C04B41/009C04B41/4922C04B41/64C04B2103/0067C04B41/4521C04B41/455C04B41/49C04B7/02C04B14/062C04B28/02
    • The present invention provides methods and compounds for reducing porosity in concrete using alkoxides. In a preferred embodiment, an Si-containing alkoxide, e.g., Si(OC 2 H 5 ) 4 (TEOS) or Si(OCH 3 ) 4 , may be introduced to concrete where it penetrates the pore spaces. The Si-containing alkoxide undergoes hydrolysis and polymerization reactions to form silica gel, which reduces the volume of pore spaces. In addition, hydrous silica formed during the polymerization step may react with calcium hydroxide to form CSH, which may also reduce the volume of pore spaces. The calcium hydroxide may be locally available or it may be provided by introducing a Ca-containing alkoxide solution, which forms calcium hydroxide through a hydrolysis reaction.
    • 本发明提供了使用醇盐降低混凝土孔隙率的方法和化合物。 在优选的实施方案中,含Si的醇盐,例如Si(OC 2 H 5)4(TEOS)或Si(OCH 3) 可以将其引入到渗透孔隙的混凝土中。 含Si的醇盐进行水解和聚合反应以形成硅胶,这减少了孔隙的体积。 此外,在聚合步骤期间形成的含水二氧化硅可与氢氧化钙反应形成CSH,这也可以减小孔隙的体积。 氢氧化钙可以局部获得,也可以通过引入通过水解反应形成氢氧化钙的含Ca的醇盐溶​​液来提供。
    • 4. 发明申请
    • METHODS OF LIMITING HYDROXYL ION CONCENTRATIONS OR THEIR EFFECTS IN CONCRETE PORE SOLUTIONS TO INTERFERE WITH ALKALI SILICA REACTION
    • 限制羟基离子浓度的方法或其在混合孔解决方案中与碱性硅酸盐反应干扰的影响
    • WO2008097936A3
    • 2008-10-16
    • PCT/US2008052982
    • 2008-02-05
    • BROWN PAUL WBROWN WENDY E
    • BROWN PAUL WBROWN WENDY E
    • C04B2/00
    • C04B41/4922C04B41/64
    • Methods of reducing hydroxyl ions in concrete pore solutions are provided. Such methods are useful in providing resistance to gels which form in concrete due to the alkali-silica (ASR) reaction. The methods comprise adding a salt or mixture thereof to the concrete, in aqueous or solid form, the salt or salt mixture having cations higher in valence than the anions. The methods also comprise adding an acidic phosphate or a silicon-containing alkoxide to the concrete. The methods further comprise resisting and/or inhibiting ASR in airfield runway concrete pore solutions by applying a soluble salt or a mixture of soluble salts in solution or a deicing salt mixture in situ to the runway concrete. All of the above methods are useful in reducing hydroxyl ions in concrete. Such methods can be used to resist ASR in fresh concrete, in concrete that is setting, or in hardened concrete.
    • 提供了减少混凝土孔溶液中羟基离子的方法。 这种方法可用于提供由于碱 - 二氧化硅(ASR)反应而在混凝土中形成的凝胶的抗性。 所述方法包括以水溶液或固体形式向混凝土中加入盐或其混合物,所述盐或盐混合物的阳离子的价数高于阴离子。 所述方法还包括向混凝土中加入酸性磷酸盐或含硅醇盐。 所述方法进一步包括通过在溶液中的可溶性盐或可溶性盐的混合物或将除冰盐混合物原位施加到跑道混凝土上来抵抗和/或抑制机场跑道混凝土孔溶液中的ASR。 所有上述方法都可用于减少混凝土中的羟基离子。 这种方法可用于抵抗新拌混凝土中的ASR,混凝土中的ASR或硬化混凝土。
    • 5. 发明申请
    • METHODS OF REDUCING HYDROXYL IONS IN CONCRETE PORE SOLUTIONS
    • 减少混凝土溶液中羟基离子的方法
    • WO2007001875A3
    • 2007-05-18
    • PCT/US2006023274
    • 2006-06-15
    • BROWN PAUL W
    • BROWN PAUL W
    • C04B16/00C04B24/08
    • C04B41/009C04B28/02C04B41/4922C04B41/64C04B2111/2023C04B41/4556C04B22/06C04B22/085C04B22/16C04B24/02C04B24/04C04B24/42
    • Methods of reducing hydroxyl ions in concrete pore solutions are provided. Such methods are useful in providing resistance to gels which form in concrete due to alkali-silica (ASR) reaction. The methods comprise, in one aspect, adding a salt, in aqueous or solid form, to the concrete, the salt having a cation higher in valence than the anion. In other aspects, the methods of the present invention comprise adding an acidic phosphate or a silicon-containing alkoxide to the concrete. All of the above methods are useful in reducing hydroxyl ions in concrete. Such methods can be used to resist ASR in fresh concrete, in concrete that is setting, or in hardened concrete. Methods are also provided for mitigating ASR while simultaneously healing cracks in concrete or bonding new concrete to existing concrete. The methods involve reacting an Si-containing alkoxide with a source of reactive calcium to produce calcium silicate hydrate.
    • 提供了减少混凝土孔溶液中羟基离子的方法。 这种方法可用于提供由于碱 - 二氧化硅(ASR)反应而在混凝土中形成的凝胶的抗性。 在一个方面,所述方法包括以水溶液或固体形式向混凝土中加入盐,所述盐的阳离子的价数高于阴离子。 在其它方面,本发明的方法包括向混凝土中加入酸性磷酸盐或含硅醇盐。 所有上述方法都可用于减少混凝土中的羟基离子。 这种方法可用于抵抗新拌混凝土中的ASR,混凝土中的ASR或硬化混凝土。 还提供了减轻ASR同时治愈混凝土裂缝或将新混凝土粘结在现有混凝土上的方法。 所述方法包括使含Si的醇盐与反应性钙的来源反应以产生水合硅酸钙。
    • 6. 发明申请
    • IN-SITU TREATMENT OF ASBESTOS-CONTAINING MATERIAL
    • 含ASB物质的材料的现场处理
    • WO2006052859A3
    • 2006-07-27
    • PCT/US2005040235
    • 2005-11-04
    • 352 EAST IRVIN AVENUE LTD PARTBROWN PAUL W
    • BROWN PAUL W
    • A62D3/36A62D101/41B09B3/00
    • B09B3/0066A62D3/36A62D2101/41
    • The present invention relates to methods for the in-situ treatment of ACM containing chrysotile asbestos using a polycarboxylic acid such as oxalic acid. The polycarboxylic acid is introduced to the ACM while it remains substantially in place, or "in-situ," and assists in converting the asbestos to a non-asbestos material. When the ACM is used as an insulating material, the asbestos fibers may be covered in gypsum that may be at least partially removed or dissolved away. The polycarboxylic acid may (1) directly attack the asbestos and/or (2) dissolve gypsum and form sulfuric acid capable of attacking the asbestos. Additional sulfuric acid may be introduced to assist in conversion of the asbestos to a non-asbestos form. Magnesium sulfate may be introduced to maintain the structural stability of the treated material thereby allowing it to substantially remain in place. Alternatively, the treated material may be safely removed for disposal.
    • 本发明涉及使用多元羧酸如草酸原位处理含有温石棉的ACM的方法。 将多元羧酸引入到ACM中,同时其基本保持在原位或“原位”,并有助于将石棉转化成非石棉材料。 当ACM用作绝缘材料时,石棉纤维可能被至少部分去除或溶解掉的石膏覆盖。 多元羧酸可以(1)直接攻击石棉和/或(2)溶解石膏并形成能够攻击石棉的硫酸。 可以引入额外的硫酸以帮助将石棉转化成非石棉形式。 可以引入硫酸镁以保持经处理的材料的结构稳定性,从而允许其基本保持在适当的位置。 或者,处理的材料可以被安全地去除以便处理。