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公开(公告)号：US4083877A
公开(公告)日：1978-04-11
申请号：US683654
申请日：1976-05-06
IPC分类号： C07D323/00 , C07C409/34 , C07C179/14
CPC分类号： C07C409/34 , C07C407/00 , C07C407/003
摘要： The present invention provides a process for making diphthaloyl peroxide by reacting phthalic anhydride with aqueous hydrogen peroxide at a pH controlled to between pH 8 and 10, preferably pH 8.8 to 9.2 and a low temperature preferably maintained at 0.degree. to 5.degree. C, and thereafter removing diphthaloyl peroxide from solution, suitably by acidification and filtration. Preferably excess solid phthalic anhydride is employed and is filtered out before the solution is acidified. Desirably the concentration of active oxygen species is maintained at below 0.3 moles/liter.Diphthaloyl peroxide is particularly suitable for bleaching/washing fabrics, optionally in conjunction with an inorganic persalt e.g. sodium perborate, at a temperature of from 30.degree. to 60.degree. C.
摘要翻译： 本发明提供了一种通过使邻苯二甲酸酐与控制在pH8至10，优选pH 8.8至9.2之间的pH控制的过氧化氢水溶液反应并优选保持在0至5℃的方法制备邻苯二甲酰过氧化物的方法，此后 通过酸化和过滤适当地从溶液中除去过氧化二苯甲酰。 优选使用过量的固体邻苯二甲酸酐，并在溶液酸化之前将其滤出。 理想地，活性氧的浓度保持在低于0.3摩尔/升。
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公开(公告)号：US4097536A
公开(公告)日：1978-06-27
申请号：US791003
申请日：1977-04-26
申请人： Robert Charles Patrick Cubbon , Peter John Russell , Robert Eric Talbot , David Thomas Woodbridge
发明人： Robert Charles Patrick Cubbon , Peter John Russell , Robert Eric Talbot , David Thomas Woodbridge
CPC分类号： C11D3/3945
摘要： The present invention provides a process for producing diphthaloyl peroxide comprising the steps of reacting particulate phthalic anhydride with aqueous hydrogen peroxide in a mobile slurry or paste and thereafter separating diphthaloyl peroxide from the aqueous phase. Preferably the minimum volume of hydrogen peroxide solution is employed commensurate with obtaining a mobile slurry or paste in a mole ratio of phthalic anhydride to hydrogen peroxide of 4:3 to 1:3. Preferably the reaction is effected at a temperature of from 25.degree. to 50.degree. C. Diphthaloyl peroxide is particularly suitable for washing/bleaching fabrics, optionally in conjection with an inorganic persalt e.g. sodium perborate, at a temperature of from 30.degree. to 60.degree. C.
摘要翻译： 本发明提供了一种生产二苯甲酰过氧化物的方法，包括以下步骤：使活性浆料或糊状物中的邻苯二甲酸酐与过氧化氢水溶液反应，然后从水相中分离过氧二苯甲酰。 优选使用相当于以4:3至1:3的邻苯二甲酸酐与过氧化氢的摩尔比获得可移动浆料或糊剂的最小体积的过氧化氢溶液。 优选地，反应在25℃至50℃的温度下进行。
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公开(公告)号：US10791403B2
公开(公告)日：2020-09-29
申请号：US15652465
申请日：2017-07-18
摘要： A device, including a behind-the-ear (BTE) device ear interface fixture, the fixture including a loop portion configured to enable a pinna of a recipient to be inserted there through and an attachment portion configured to removably attach the fixture to a BTE electronics module and/or a BTE battery, wherein the inner perimeter of the loop portion is non-circular when the loop portion is in a relaxed state.
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公开(公告)号：USD778447S1
公开(公告)日：2017-02-07
申请号：US29512365
申请日：2014-12-18
申请人： Peter John Russell , David Harte
设计人： Peter John Russell , David Harte
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公开(公告)号：US10674282B2
公开(公告)日：2020-06-02
申请号：US15652746
申请日：2017-07-18
摘要： An ear hook apparatus, including an ear hook tip, an ear hook chassis, and a male connector, wherein the ear hook apparatus is configured such that the male connector attaches to one or more components of a BTE device at and/or below a base of a BTE electronics module of the BTE device.
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