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1. 发明公开

EP3690084A1 PASSIVATION OF MICRO-DISCONTINUOUS CHROMIUM DEPOSITED FROM A TRIVALENT ELECTROLYTE 审中-公开
公开(公告)号：EP3690084A1
公开(公告)日：2020-08-05
申请号：EP20164912.6
申请日：2015-03-05
申请人： MacDermid Acumen, Inc.
发明人： MERTENS, Marc , TOOTH, Richard , HERDMAN, Roderick, D. , CLARKE, Terence , PEARSON, Trevor
IPC分类号： C25D3/06 , C25D5/10 , C25D5/12 , C25D5/14 , C25B1/02 , C25D5/48 , C25D9/08
摘要： A method of treating a substrate, wherein the substrate comprises a layer deposited from a trivalent chromium electrolyte, is described. The method includes the steps of providing an anode and the chromium(III) plated substrate as a cathode in an electrolyte comprising (i) a trivalent chromium salt; and (ii) a complexant; and passing an electrical current between the anode and the cathode to passivate the chromium(III) plated substrate. The substrate may be first plated with a plated nickel layer so that the chromium(III) plated layer is deposited over the nickel plated layer.

2. 发明授权

EP3114258B1 PASSIVATION OF MICRO-DISCONTINUOUS CHROMIUM DEPOSITED FROM A TRIVALENT ELECTROLYTE 有权
公开(公告)号：EP3114258B1
公开(公告)日：2020-05-06
申请号：EP15757833.7
申请日：2015-03-05
申请人： MacDermid Acumen, Inc.
发明人： MERTENS, Marc , TOOTH, Richard , HERDMAN, Roderick, D. , CLARKE, Terence , PEARSON, Trevor
IPC分类号： C25D3/06 , C25D5/48 , C25D9/08

3. 发明公开

EP2920341A1 ELECTROLYTIC GENERATION OF MANGANESE (III) IONS IN STRONG SULFURIC ACID 有权
标题翻译：锰（III）离子在浓硫酸中电解生产
公开(公告)号：EP2920341A1
公开(公告)日：2015-09-23
申请号：EP13854930.8
申请日：2013-09-26
申请人： MacDermid Acumen, Inc.
发明人： PEARSON, Trevor , CLARKE, Terence , CHAPANERI, Roshan, V.
IPC分类号： C25B11/02 , C25B11/03 , C25B11/12
CPC分类号： C25B11/02 , C23C18/1653 , C23C18/24 , C25B1/21 , C25B11/03 , C25B11/12
摘要： An electrolytic cell and a method of electrochemical oxidation of manganese (II) ions to manganese(III) ions in the electrolytic cell are described. The electrolytic cell comprises ( 1 ) an electrolyte solution of manganese(II) ions in a solution of 9 to 15 molar sulfuric acid; (2) a cathode immersed in the electrolyte solution; and (3) an anode immersed in the electrolyte solution and spaced apart from the cathode. Various anode materials are described including vitreous carbon, reticulated vitreous carbon, and woven carbon fibers.

4. 发明授权

EP2920341B1 ELECTROLYTIC GENERATION OF MANGANESE (III) IONS IN STRONG SULFURIC ACID 有权
公开(公告)号：EP2920341B1
公开(公告)日：2018-11-14
申请号：EP13854930.8
申请日：2013-09-26
申请人： MacDermid Acumen, Inc.
发明人： PEARSON, Trevor , CLARKE, Terence , CHAPANERI, Roshan, V.
IPC分类号： C25B11/02 , C25B11/03 , C25B11/12 , C23C18/16 , C23C18/24 , C25B1/21
CPC分类号： C25B11/02 , C23C18/1653 , C23C18/24 , C25B1/21 , C25B11/03 , C25B11/12
摘要： An electrolytic cell and a method of electrochemical oxidation of manganese (II) ions to manganese(III) ions in the electrolytic cell are described. The electrolytic cell comprises ( 1 ) an electrolyte solution of manganese(II) ions in a solution of 9 to 15 molar sulfuric acid; (2) a cathode immersed in the electrolyte solution; and (3) an anode immersed in the electrolyte solution and spaced apart from the cathode. Various anode materials are described including vitreous carbon, reticulated vitreous carbon, and woven carbon fibers.

5. 发明公开

EP2815002A1 COLOR CONTROL OF TRIVALENT CHROMIUM DEPOSITS 有权
标题翻译： FARBKONTROLLE VON DREIWERTIGEN CHROMABLAGERUNGEN
公开(公告)号：EP2815002A1
公开(公告)日：2014-12-24
申请号：EP13749579.2
申请日：2013-02-05
申请人： MacDermid Acumen, Inc.
发明人： HINGLEY, Stacey , TOOTH, Richard , CLARKE, Terence
IPC分类号： C25D3/06
CPC分类号： C25D3/06 , C25D21/12
摘要： A method of adjusting and controlling the color of trivalent chromium deposits is provided. The method includes the steps of: (a) measuring the color of a trivalent chromium deposit standard; (b) adding one or more color enhancing additives to a trivalent chromium electrolyte; (c) contacting the substrate with the trivalent chromium electrolyte containing the one or more color enhancing additives to deposit trivalent chromium on the substrate; (d) measuring the color of the color-enhanced trivalent chromium deposit; (e) comparing the color of the color-enhanced chromium deposit to that of the standard; and (f) if necessary, adjusting the amount of the one or more color enhancing additives added to the trivalent chromium electrolyte if the color of the color-enhanced chromium deposit is outside of a desired optical variation from that of the standard color-enhanced chromium deposit. The color of the trivalent chromium deposit may be measured using a spectrophotometer.
摘要翻译：提供了调节和控制三价铬沉积物的颜色的方法。该方法包括以下步骤：（a）测量三价铬沉积物标准品的颜色; （b）向三价铬电解质中加入一种或多种增色添加剂; （c）使基材与含有一种或多种增色添加剂的三价铬电解质接触，以在基板上沉积三价铬; （d）测量增色三价铬沉积物的颜色; （e）将增色铬沉积物的颜色与标准物的颜色进行比较; 和（f）如果需要，调整添加到三价铬电解质中的一种或多种着色增强添加剂的量，如果增色铬沉积物的颜色在与标准增色铬的所需光学变化之外存款。可以使用分光光度计测量三价铬沉积物的颜色。

6. 发明授权

EP2971260B1 ELECTROLYTIC GENERATION OF MANGANESE (III) IONS IN STRONG SULFURIC ACID 有权
公开(公告)号：EP2971260B1
公开(公告)日：2019-06-19
申请号：EP14779082.8
申请日：2014-03-07
申请人： MacDermid Acumen, Inc.
发明人： PEARSON, Trevor , CLARKE, Terence , CHAPANERI, Roshan, V. , ROBINSON, Craig , HYSLOP, Alison , SINGH, Amrik
IPC分类号： C25C1/10 , C25B11/04 , C25B11/12 , C25B15/02 , C25B1/21 , C23C18/24 , C25D5/56 , C23C18/20

7. 发明公开

EP3114258A1 PASSIVATION OF MICRO-DISCONTINUOUS CHROMIUM DEPOSITED FROM A TRIVALENT ELECTROLYTE 有权
标题翻译： PASSIVIERUNG VON AUS EINEM DREIWERTIGEN ELEKTROLYT ABGESCHIEDENEN MIKRO-DISKONTINUIERLICHEN CHROM
公开(公告)号：EP3114258A1
公开(公告)日：2017-01-11
申请号：EP15757833.7
申请日：2015-03-05
申请人： MacDermid Acumen, Inc.
发明人： MERTENS, Marc , TOOTH, Richard , HERDMAN, Roderick, D. , CLARKE, Terence , PEARSON, Trevor
IPC分类号： C25D3/06 , C25D5/10 , C25D5/12 , C25D5/14 , C25B1/02
CPC分类号： C25D3/06 , C25D5/48 , C25D9/08 , Y10T428/12854
摘要： A method of treating a substrate, wherein the substrate comprises a layer deposited from a trivalent chromium electrolyte, is described. The method includes the steps of providing an anode and the chromium(III) plated substrate as a cathode in an electrolyte comprising (i) a trivalent chromium salt; and (ii) a complexant; and passing an electrical current between the anode and the cathode to passivate the chromium(III) plated substrate. The substrate may be first plated with a plated nickel layer so that the chromium(III) plated layer is deposited over the nickel plated layer.
摘要翻译：描述了一种处理衬底的方法，其中衬底包括由三价铬电解质沉积的层。该方法包括以下步骤：在电解质中提供阳极和镀有铬（III）的底物作为阴极，包括（i）三价铬盐; 和（ii）复合物; 并在阳极和阴极之间通过电流以钝化镀铬（III）的衬底。基板可以首先镀覆镀镍层，以使镀铬层（III）沉积在镀镍层上。

8. 发明公开

EP2971260A1 ELECTROLYTIC GENERATION OF MANGANESE (III) IONS IN STRONG SULFURIC ACID 有权
标题翻译：锰（III）离子在浓硫酸中电解生产
公开(公告)号：EP2971260A1
公开(公告)日：2016-01-20
申请号：EP14779082.8
申请日：2014-03-07
申请人： MacDermid Acumen, Inc.
发明人： PEARSON, Trevor , CLARKE, Terence , CHAPANERI, Roshan, V. , ROBINSON, Craig , HYSLOP, Alison , SINGH, Amrik
IPC分类号： C25C1/10
CPC分类号： C25B1/21 , C23C18/2086 , C23C18/24 , C25B11/0473 , C25B11/12 , C25B15/02 , C25D5/56
摘要： An electrolytic cell and a method of electrochemical oxidation of manganese(II) ions to manganese(III) ions in the electrolytic cell are described. The electrolytic cell comprises (1) an electrolyte solution of manganese(II) ions in a solution of at least one acid; (2) a cathode immersed in the electrolyte solution; and (3) an anode immersed in the electrolyte solution and spaced apart from the cathode. Various anode materials are described including vitreous carbon, reticulated vitreous carbon, woven carbon fibers, lead and lead alloy. Once the electrolyte is oxidized to form a metastable complex of manganese(III) ions, a platable plastic may be contacted with the metastable complex to etch the platable plastic. In addition, a pretreatment step may also be performed on the platable plastic prior to contacting the platable plastic with the metastable complex to condition the plastic surface.

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