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1.发明授权High cleaning silica gel dental abrasive, dentifrices prepared therefrom, and a method for preparing the dental abrasive 失效高清洁硅胶牙科研磨剂，由其制备的洁牙剂，以及牙科研磨剂的制备方法公开(公告)号：US06896876B1
公开(公告)日：2005-05-24
申请号：US10062602
申请日：2002-01-31
CPC分类号： A61K8/25 , A61K2800/412 , A61K2800/59 , A61Q11/00
摘要： A silica gel abrasive having good cleaning and low abrasion is prepared by combining at least two silica gels before adjusting the pH of the abrasive to a pH in the range of 3-6. One of the gels is washed at relatively lower temperature compared to the wash temperature of a second gel. The two gels are then milled and dried to a median particle size in the range of 5 to 12 microns. The volatiles content of the gel combination is in the range of 20-40% by weight. The resulting mixtures have low abrasion as measured by Einlehner, e.g., in the range of 0.5 to 3 when measured using a brass screen. A dentifrice composition comprising 10 to 25% of the abrasive has a PCR of at least 80 and can obtain PCR's greater than 100.
摘要翻译： 通过在将研磨剂的pH调节至3-6范围内的pH之前将至少两种硅胶合并，制备具有良好清洁和低磨损性的硅胶磨料。 与第二凝胶的洗涤温度相比，在相对较低的温度下洗涤一个凝胶。 然后将两个凝胶研磨并干燥至5至12微米范围内的中值粒度。 凝胶组合物的挥发物含量在20-40重量％的范围内。 所得到的混合物由Einlehner测得的具有低的磨损性，例如在使用黄铜屏幕测量时在0.5至3的范围内。 包含10-25％的研磨剂的洁齿剂组合物具有至少80的PCR，并且可以获得大于100的PCR。
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2.发明授权
公开(公告)号：US5780384A
公开(公告)日：1998-07-14
申请号：US778935
申请日：1997-01-03
CPC分类号： B01D53/8668 , B01J23/34
摘要： The present invention generally relates to supported mono charged cation delta manganese dioxide hydrate having a noble metal on the surface thereof, and to the use thereof for low temperature oxidation of volatile organic compounds (VOCs), particularly oxygen-containing VOCs. The present invention further relates to the use of the supported catalysts to reduce the amount of VOCs present in waste gases produced by processes such as baking, brewing, and flexographic printing. Catalysts prepared from the supported manganese-containing catalysts have increased resistance to poisoning in the presence of catalyst contaminants, e.g., sulfur containing compounds.
摘要翻译： 本发明一般涉及其表面具有贵金属的负载型单电荷阳离子二氧化锰水合物及其用于挥发性有机化合物（VOC），特别是含氧VOC的低温氧化的用途。 本发明还涉及使用负载型催化剂以减少通过诸如烘焙，酿造和柔性版印刷的方法产生的废气中存在的VOC的量。 由负载的含锰催化剂制备的催化剂在催化剂污染物例如含硫化合物的存在下具有增加的中毒耐受性。
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3.发明授权Catalyst and method for oxidizing oxygen-containing organic compounds in waste gas 失效用于氧化废气中含氧有机化合物的催化剂和方法
公开(公告)号：US5882616A
公开(公告)日：1999-03-16
申请号：US730730
申请日：1996-10-15
CPC分类号： B01J23/63 , B01D53/8668 , B01J23/002 , B01J2523/00
摘要： The present invention generally relates to supported perovskites of the formula XYO.sub.3 where X is lanthanum, cerium or yttrium and Y is a transition metal such as copper, chromium, manganese, iron, cobalt and nickel supported on a support such as alumina, silica, magnesium aluminate, titanium oxide, zirconium oxide and mixtures thereof. In the case where X is lanthanum, some of the lanthanum ions may be replaced resulting in a perovskite of the formula La.sub.1-x A.sub.x YO.sub.3 wherein x is about 0.75 or less and A is silver or magnesium and Y is manganese or iron. Their use for low temperature oxidation of volatile organic compounds (VOCs), particularly oxygen-containing VOCs. The support may be stabilized by having an intermediate metal oxide layer on the surface of the support wherein the metal of the intermediate metal oxide may be iron, magnesium, cobalt, nickel, manganese, zinc, titanium, copper, chromium, lanthanum, barium, calcium, strontium or silver. The catalysts contain platinum or palladium. The present invention further relates to the use of supported perovskites to reduce the amount of VOCs present in waste gases produced by processes such as baking, brewing, and flexographic printing. Catalysts prepared from the supported perovskites have increased resistance to poisoning in the presence of sulfur containing compounds.
摘要翻译： 本发明一般涉及式XYO3的支持的钙钛矿，其中X是镧，铈或钇，Y是负载在诸如氧化铝，二氧化硅，镁的载体上的过渡金属如铜，铬，锰，铁，钴和镍 铝酸盐，氧化钛，氧化锆及其混合物。 在X是镧的情况下，可以替换一些镧离子，得到式La1-xAxYO3的钙钛矿，其中x为约0.75以下，A为银或镁，Y为锰或铁。 它们用于挥发性有机化合物（VOC）的低温氧化，特别是含氧的VOC。 可以通过在载体表面上具有中间金属氧化物层来稳定载体，其中中间金属氧化物的金属可以是铁，镁，钴，镍，锰，锌，钛，铜，铬，镧，钡， 钙，锶或银。 催化剂含有铂或钯。 本发明还涉及使用支撑的钙钛矿来减少通过诸如烘烤，冲泡和柔性版印刷的工艺产生的废气中存在的VOC的量。 由支持的钙钛矿制备的催化剂在含硫化合物的存在下具有增加的耐中毒性。
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4.发明授权
公开(公告)号：US5789339A
公开(公告)日：1998-08-04
申请号：US481991
申请日：1995-06-07
CPC分类号： B01J23/63 , B01D53/8668 , B01J23/002 , B01J2523/00
摘要： The present invention generally relates to supported perovskites and their use for low temperature oxidation of volatile oxygen-containing organic compounds, particularly alcohols. The present invention further relates to the use of supported perovskites to reduce the amount of oxygen-containing organic compounds present in waste gases produced by processes such as baking or brewing.
摘要翻译： 本发明一般涉及负载型钙钛矿及其挥发性含氧有机化合物，特别是醇的低温氧化用途。 本发明还涉及使用负载型钙钛矿来减少通过烘烤或冲泡等方法产生的废气中存在的含氧有机化合物的量。
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