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1.发明公开公开(公告)号：US20230416873A1
公开(公告)日：2023-12-28
申请号：US17746126
申请日：2022-05-17
发明人： DINESH TYAGI , WEIMEI LUO , MARK THOMAS BELLINO
CPC分类号： C22B15/0063 , C25C1/20 , C22B7/006 , C22B11/046
摘要： The present invention is related generally to recovering metals from waste electronics, and more particularly to a process to recover copper and gold commonly found in waste printed circuit boards using a lixiviant containing a weak acid such as citric acid or acetic acid, a particular concentration of table salt and an oxidizer. By using this lixiviant, the copper found in the printed circuit board reacts to form copper salts and gold becomes detached. Importantly this recovery method of copper and gold found in waste PCBs is fast, does not pose environmental hazards and is economically feasible.
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2.发明公开公开(公告)号：US20230152723A1
公开(公告)日：2023-05-18
申请号：US18098991
申请日：2023-01-19
发明人： WEIMEI LUO , MARK THOMAS BELLINO
IPC分类号： G03G5/147
CPC分类号： G03G5/14769 , G03G5/14704
摘要： An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a crosslinkable siloxane, nano metal oxide particles sized less than 400 nm in combination with a urethane acrylate resin having at least 6 functional groups. The outermost layer of an organic photoconductors is coated with the overcoat formulation of the present invention then cured. The resulting cured overcoated organic photoconductor has improved wear resistance and importantly does not negatively altering the electrophotographic properties of the organic photoconductor.
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公开(公告)号：US20230066324A1
公开(公告)日：2023-03-02
申请号：US17885758
申请日：2022-08-11
发明人： WEIMEI LUO , MARK THOMAS BELLINO
摘要： An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a crosslinkable siloxane, nano metal oxide particles sized less than 400 nm in combination with a urethane acrylate resin having at least 6 functional groups. The outermost layer of an organic photoconductors is coated with the overcoat formulation of the present invention then cured. The resulting cured overcoated organic photoconductor has improved wear resistance and importantly does not negatively altering the electrophotographic properties of the organic photoconductor.
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4.发明申请公开(公告)号：US20180173122A1
公开(公告)日：2018-06-21
申请号：US15898687
申请日：2018-02-19
CPC分类号： G03G5/0525 , C07C13/567 , C07C57/50 , G03G5/0614 , G03G5/071 , G03G5/14717 , G03G5/14734 , G03G7/0006
摘要： A method to make an improved organic photoconductor drum of an electrophotographic image forming device is provided. The improved organic photoconductor drum is prepared using a curable composition including a charge transport molecule containing four radical polymerizable functional groups of the general structure exemplified below: where R1 and R2 contain a spacer group and a radical polymerizable functional group, R3 and R4 are selected from the group consisting of a radical polymerizable functional group, a non-radical polymerizable functional group, and one each of a radical polymerizable functional group and a non-radial polymerizable functional group, and R5 and R6 contain a spacer group and a radical polymerizable functional group.
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5.发明申请OVERCOAT FORMULATION FOR LONG-LIFE ELECTROPHOTOGRAPHIC PHOTOCONDUCTORS AND METHOD FOR MAKING THE SAME 审中-公开用于长寿命电子照相光电导体的超滤配方及其制备方法公开(公告)号：US20160363876A1
公开(公告)日：2016-12-15
申请号：US15244433
申请日：2016-08-23
发明人： MARK THOMAS BELLINO , GERALD HUGH CIECIOR , DOUGLAS JEFFREY HARRIS , WEIMEI LUO , BRIAN DAVID MUNSON , DAT QUOC NGUYEN , SCOTT DANIEL REEVES , TANYA YVONNE THAMES
CPC分类号： G03G5/14734 , G03G5/0525 , G03G5/0546 , G03G5/147 , G03G5/14713 , G03G5/14717 , G03G5/14721 , G03G5/14791 , G03G5/14795
摘要： An overcoat layer and method to make an overcoated photoconductor drum of an electrophotographic image forming device using irradiation such as with electron beam (EB) or ultraviolet (UV) light is provided. The photoconductor drum is then cured using EB dose of between 10 and 100 kiloGrays (kGy), preferably between 20 and 40 kGys or UV irradiation with an exposure of between 0.1 and 2 J/cm2. The unique overcoat layer of the present invention is formed having a biphasic morphology comprised of a highly cured crosslinked phase and a second phase enriched in uncured material. The desired amount of uncured uncrosslinked material found in the second phase of the biphasic structure, is between 2-70 wt % range, with particularly good combination of long-life and electrical performance when present at the 5-50 wt % level, and the best performance at the 15-40 wt % level. The biphasic morphology of the overcoat layer using the method of the present invention gives rise to the good wear rates while allowing rapid transport of the electrical charge and thus fast discharge properties of the photoconductor drum.
摘要翻译： 提供了使用诸如电子束（EB）或紫外（UV）光等照射的电子照相成像装置的外涂层感光鼓的外涂层和方法。 然后使用10至100千格（kGy），优选20至40kGys之间的EB剂量或0.1至2J / cm 2的曝光的UV照射来固化感光鼓。 本发明的独特外涂层形成为具有由高度固化的交联相和富含未固化材料的第二相组成的双相形态。 在双相结构的第二相中发现的未固化未交联材料的所需量为2-70重量％范围，当以5-50重量％的水平存在时，寿命长和电性能特别好的组合， 最佳性能在15-40重量级。 使用本发明的方法的外涂层的双相形态产生良好的磨损率，同时允许电荷的快速传输并因此感光鼓的快速放电性能。
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6.发明公开公开(公告)号：US20230374380A1
公开(公告)日：2023-11-23
申请号：US17746132
申请日：2022-05-17
发明人： DINESH TYAGI , WEIMEI LUO , MARK THOMAS BELLINO
CPC分类号： C09K13/00 , C22B15/0063 , C22B11/046
摘要： The present invention is related generally to recovering metals from waste electronics, and more particularly to a process to recover copper and gold commonly found in waste printed circuit boards using a lixiviant containing a weak acid such as citric acid or acetic acid, a particular concentration of table salt and an oxidizer. By using this lixiviant, the copper found in the printed circuit board reacts to form copper salts and gold becomes detached. Importantly this recovery method of copper and gold found in waste PCBs is fast, does not pose environmental hazards and is economically feasible.
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公开(公告)号：US20210124278A1
公开(公告)日：2021-04-29
申请号：US16877783
申请日：2020-05-19
摘要： A photoconductive drum includes an elongated support element with a shaped charge generation layer. The layer extends from the support element at various thicknesses along a length thereof. Thicker charge generation portions provides denser optical densities compared to thinner portions allowing tailoring the photoconductive drum to compensate for imperfect optical scanning systems. A charge transport layer overcoats the charge generation layer. Optionally, an oxidation layer underlies the charge generation layer as does a protective overcoat overlying the charge transport layer. Various thicknesses and shapes of the charge generation layer are also disclosed.
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8.发明申请公开(公告)号：US20190258182A1
公开(公告)日：2019-08-22
申请号：US16398842
申请日：2019-04-30
发明人： WEIMEI LUO , MARK THOMAS BELLINO
摘要： An improved organic photoconductor drum having a protective overcoat layer and method to make the same is provided. The protective overcoat layer is prepared from a curable composition including nano metal oxide particles sized less than 400 nm in combination with an urethane acrylate resin having at least 6 functional groups.
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9.发明申请公开(公告)号：US20190137897A1
公开(公告)日：2019-05-09
申请号：US15802722
申请日：2017-11-03
发明人： WEIMEI LUO , MARK THOMAS BELLINO
摘要： An improved organic photoconductor drum having a protective overcoat layer and method to make the same is provided. The protective overcoat layer is prepared from a curable composition including nano metal oxide particles sized less than 400 nm in combination with an urethane acrylate resin having at least 6 functional groups.
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10.发明申请公开(公告)号：US20190137896A1
公开(公告)日：2019-05-09
申请号：US15802712
申请日：2017-11-03
发明人： WEIMEI LUO , MARK THOMAS BELLINO
摘要： An improved organic photoconductor drum having a protective overcoat layer and method to make the same is provided. The protective overcoat layer is prepared from a curable composition including nano metal oxide particles sized less than 400 nm in combination with an urethane acrylate resin having at least 6 functional groups.
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