公开(公告)号：US20090121181A1

公开(公告)日：2009-05-14

申请号：US12096502

申请日：2006-12-07

申请人： Andreas Eichfelder ,  Rainer Erhardt ,  Martin Reif ,  Eva Ruba ,  Gunter Scherr ,  Jorg Schneider ,  Dieter Weilacher

发明人： Andreas Eichfelder ,  Rainer Erhardt ,  Martin Reif ,  Eva Ruba ,  Gunter Scherr ,  Jorg Schneider ,  Dieter Weilacher

IPC分类号： C09K3/00

CPC分类号： C08G12/427

摘要： Process for the preparation of etherified melamine/formaldehyde condensates, in which first a methylolation of melamine with a formaldehyde component in the molar ratio of from 1:6 to 1:15, preferably at a pH of >7, is carried out. This is followed by an etherification of the resulting hydroxymethylation intermediate in the presence of a C1-C20-alkyl, preferably of a C1-C6-alcohol, particularly preferably of a C1-C4-alcohol, at a pH of 9.5 being established before, during and/or after the distillation. According to the invention, a plurality of hydroxymethylation, etherification and distillation steps follow in order to achieve an etherified melamine/formaldehyde condensate which is distinguished by a high degree of hydroxymethylation, a high solids content and a low viscosity.

摘要翻译： 用于制备醚化的三聚氰胺/甲醛缩合物的方法，其中首先以摩尔比为1:6至1:15，优选pH为> 7的三聚氰胺与甲醛组分的羟甲基化反应。 然后在pH <4.​​5的情况下在所得羟甲基化中间体在C1-C20烷基，优选C1-C6醇，特别优选C1-C4-醇的存在下进行醚化，随后 通过至少一个蒸馏步骤以从体系中除去特别是甲醇，在蒸馏之前，期间和/或之后建立pH> 9.5。 根据本发明，为了实现醚化的三聚氰胺/甲醛缩合物，通过高度羟甲基化，高固体含量和低粘度来区分多个羟甲基化，醚化和蒸馏步骤。

公开(公告)号：US09039927B2

公开(公告)日：2015-05-26

申请号：US12096502

申请日：2006-12-07

申请人： Andreas Eichfelder ,  Rainer Erhardt ,  Martin Reif ,  Eva Ruba ,  Günter Scherr ,  Jörg Schneider ,  Dieter Weilacher

发明人： Andreas Eichfelder ,  Rainer Erhardt ,  Martin Reif ,  Eva Ruba ,  Günter Scherr ,  Jörg Schneider ,  Dieter Weilacher

IPC分类号： C09K3/00 ,  C08F2/00 ,  C08G12/42

CPC分类号： C08G12/427

摘要： Process for the preparation of etherified melamine/formaldehyde condensates, in which first a methylolation of melamine with a formaldehyde component in the molar ratio of from 1:6 to 1:15, preferably at a pH of >7, is carried out. This is followed by an etherification of the resulting hydroxymethylation intermediate in the presence of a C1-C20-alkyl, preferably of a C1-C6-alcohol, particularly preferably of a C1-C4-alcohol, at a pH of 9.5 being established before, during and/or after the distillation. According to the invention, a plurality of hydroxymethylation, etherification and distillation steps follow in order to achieve an etherified melamine/formaldehyde condensate which is distinguished by a high degree of hydroxymethylation, a high solids content and a low viscosity.

摘要翻译： 用于制备醚化的三聚氰胺/甲醛缩合物的方法，其中首先以摩尔比为1:6至1:15，优选pH为> 7的三聚氰胺与甲醛组分的羟甲基化反应。 然后在pH <4.​​5的情况下在所得羟甲基化中间体在C1-C20烷基，优选C1-C6醇，特别优选C1-C4-醇的存在下进行醚化，随后 通过至少一个蒸馏步骤以从体系中除去特别是甲醇，在蒸馏之前，期间和/或之后建立pH> 9.5。 根据本发明，为了实现醚化的三聚氰胺/甲醛缩合物，通过高度羟甲基化，高固体含量和低粘度来区分多个羟甲基化，醚化和蒸馏步骤。