公开(公告)号：EP1926707A1

公开(公告)日：2008-06-04

申请号：EP06793237.6

申请日：2006-09-05

Applicant: BASF SE

Inventor： KLÖTZER, Matthias ,  STROEFER, Eckhard ,  KRASE, Volker ,  SCHMIDT, Andreas ,  SCHERBEL, Peter

IPC: C07C265/14 ,  C07C263/04 ,  C07C269/04

CPC classification number: C07C263/04 ,  C07C269/04 ,  C07C271/12 ,  C07C265/14

Abstract: The invention provides a multistage process for continuously preparing organic, distillable polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with carbonic acid derivatives and alcohols to low molecular mass monomeric polyurethanes, and thermally cleaving said polyurethanes, in which at defined reaction stages the polyisocyanates prepared and unusable residues are separated off, and reusable by products and intermediates are recycled to upstream stages.

Abstract translation: 本发明提供了连续制备有机可蒸馏的多异氰酸酯，优选二异氰酸酯，更优选脂族或脂环族二异氰酸酯的多阶段方法，通过使相应的有机多胺与碳酸衍生物和醇反应成低分子量单体聚氨酯，并热切割所述聚氨酯， 在确定的反应阶段，制备的多异氰酸酯和不可用的残余物被分离出来，并且可以通过产物和中间体再循环到上游阶段。

公开(公告)号：EP1483235B1

公开(公告)日：2010-06-09

申请号：EP03709737.5

申请日：2003-02-28

Applicant: BASF SE

Inventor： STRÖFER, Eckhard ,  OCHSE, Michael ,  KRASE, Volker ,  SCHMIDT, Andreas ,  KLÖTZER, Matthias ,  MURRAR, Imbridt ,  FRANZKE, Gisbert

IPC: C07C263/04

CPC classification number: C07C263/04 ,  C07C265/14

公开(公告)号：EP1926707B1

公开(公告)日：2012-07-04

申请号：EP06793237.6

申请日：2006-09-05

Applicant: BASF SE

Inventor： KLÖTZER, Matthias ,  STROEFER, Eckhard ,  KRASE, Volker ,  SCHMIDT, Andreas ,  SCHERBEL, Peter

IPC: C07C265/14 ,  C07C263/04 ,  C07C269/04

CPC classification number: C07C263/04 ,  C07C269/04 ,  C07C271/12 ,  C07C265/14

Abstract: The invention provides a multistage process for continuously preparing organic, distillable polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with carbonic acid derivatives and alcohols to low molecular mass monomeric polyurethanes, and thermally cleaving said polyurethanes, in which at defined reaction stages the polyisocyanates prepared and unusable residues are separated off, and reusable by products and intermediates are recycled to upstream stages.

公开(公告)号：EP2069292A1

公开(公告)日：2009-06-17

申请号：EP07788303.1

申请日：2007-08-08

Applicant: BASF SE

Inventor： KLOETZER, Matthias ,  BLANKERTZ, Heinrich-Josef ,  GEORGI, Gunter ,  STROEFER, Eckhard ,  KRASE, Volker ,  SCHULZ, Gerhard ,  ANDREAS, Warzecha

IPC: C07C263/04 ,  C07C265/10 ,  C07C265/14

CPC classification number: C07C263/04 ,  C07C2601/14 ,  C07C265/14

Abstract: The invention relates to a multistage process for the continuous preparation of organic, distillable isocyanates, preferably diisocyanates, particularly preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the corresponding organic amines with urea and alcohols to liberate ammonia and form low molecular weight monomeric urethanes and thermal dissociation of the latter, in which by-products formed are at least partly utilized.

Abstract translation: 本发明涉及连续制备有机可蒸馏异氰酸酯，优选二异氰酸酯，特别优选脂族或脂环族二异氰酸酯的多阶段方法，其通过相应的有机胺与脲和醇反应以释放氨并形成低分子量单体氨基甲酸酯和热 后者的分解，其中形成的副产物至少部分被利用。