公开(公告)号：EP2794717A1

公开(公告)日：2014-10-29

申请号：EP12816560.2

申请日：2012-12-18

申请人： Axalta Coating Systems IP Co. LLC

发明人： BOEHM, Frank-Rainer ,  FROSCHAUER, Barbara ,  HERM, Michael ,  WALLNER, Reinhard ,  SCHUELKE, Wolfgang ,  RITTINGHAUS, Volker

IPC分类号： C08G63/685 ,  C09D167/00 ,  H01B3/30 ,  H01F1/18

CPC分类号： C09D167/02 ,  B32B38/04 ,  B32B38/18 ,  B32B2038/0096 ,  B32B2038/042 ,  B32B2307/206 ,  B32B2311/30 ,  B32B2367/00 ,  B32B2375/00 ,  B32B2457/00 ,  C08G63/6854 ,  C08K3/04 ,  C08K3/22 ,  C08K3/30 ,  C08K3/36 ,  C08K2003/3045 ,  C09D167/00 ,  H01B3/302 ,  H01B3/421 ,  H01B13/16 ,  H01F1/18 ,  Y10T156/1075 ,  Y10T428/31688

摘要： The invention provides a coating process for electrical steel sheet using a varnish composition, comprising the steps of a) applying at least one coating layer of a varnish composition onto the surface of the electrical steel sheet wherein the varnish composition comprises (A) 1 to 95 wt % of at least one resin comprising nucleophilic groups selected from the group consisting of OH, NHR, SH, carboxylate and CH-acidic groups, and electrophilic groups which can react with the above mentioned nucleophilic groups, wherein the resin is capable of transacylation in its main chain and/or side chain(s), (B) 5 to 75 wt % of at least one organic solvent and/or water, (C) 0 to 40 wt % of at least one resin different from (A), (D) 0 to 10 wt % of at least one customary additive, (E) 0 to 40 wt % of at least one pigment, filler and/or nano-scaled particle and/or monomeric and/or polymeric element-organic compound, wherein the wt % based on the total weight of the varnish composition. b) curing the applied at least one coating layer. Reduced energy consumption while curing the coating and reduced or no formaldehyde generation upon curing can be provided.

摘要翻译： 本发明提供了一种使用清漆组合物的电工钢板的涂覆方法，包括以下步骤：a）将至少一种清漆组合物涂层施加到电工钢板的表面上，其中清漆组合物包含（A）1至95 包含选自OH，NHR，SH，羧酸酯和CH-酸性基团的亲核基团的至少一种树脂的wt％，以及可以与上述亲核基团反应的亲电子基团，其中树脂能够在 其主链和/或侧链，（B）5至75重量％的至少一种有机溶剂和/或水，（C）0至40重量％的至少一种不同于（A）的树脂， （D）0至10重量％的至少一种常规添加剂，（E）0至40重量％的至少一种颜料，填料和/或纳米级颗粒和/或单体和/或聚合元素 - 有机化合物， 其中所述重量％基于所述清漆组合物的总重量。 b）固化所施加的至少一个涂层。 可以提供在固化涂层时减少能量消耗，并且可以减少或不固化时产生甲醛。

公开(公告)号：EP2794717B1

公开(公告)日：2017-11-29

申请号：EP12816560.2

申请日：2012-12-18

申请人： Axalta Coating Systems IP Co. LLC

发明人： BOEHM, Frank-Rainer ,  FROSCHAUER, Barbara ,  HERM, Michael ,  WALLNER, Reinhard ,  SCHUELKE, Wolfgang ,  RITTINGHAUS, Volker

IPC分类号： C08G63/685 ,  C09D167/00 ,  H01B3/30 ,  H01F1/18

CPC分类号： C09D167/02 ,  B32B38/04 ,  B32B38/18 ,  B32B2038/0096 ,  B32B2038/042 ,  B32B2307/206 ,  B32B2311/30 ,  B32B2367/00 ,  B32B2375/00 ,  B32B2457/00 ,  C08G63/6854 ,  C08K3/04 ,  C08K3/22 ,  C08K3/30 ,  C08K3/36 ,  C08K2003/3045 ,  C09D167/00 ,  H01B3/302 ,  H01B3/421 ,  H01B13/16 ,  H01F1/18 ,  Y10T156/1075 ,  Y10T428/31688

摘要： The invention provides a coating process for electrical steel sheet using a varnish composition, comprising the steps of a) applying at least one coating layer of a varnish composition onto the surface of the electrical steel sheet wherein the varnish composition comprises (A) 1 to 95 wt % of at least one resin comprising nucleophilic groups selected from the group consisting of OH, NHR, SH, carboxylate and CH-acidic groups, and electrophilic groups which can react with the above mentioned nucleophilic groups, wherein the resin is capable of transacylation in its main chain and/or side chain(s), (B) 5 to 75 wt % of at least one organic solvent and/or water, (C) 0 to 40 wt % of at least one resin different from (A), (D) 0 to 10 wt % of at least one customary additive, (E) 0 to 40 wt % of at least one pigment, filler and/or nano-scaled particle and/or monomeric and/or polymeric element-organic compound, wherein the wt % based on the total weight of the varnish composition. b) curing the applied at least one coating layer. Reduced energy consumption while curing the coating and reduced or no formaldehyde generation upon curing can be provided.