公开(公告)号：DE102005042392A1

公开(公告)日：2007-03-08

申请号：DE102005042392

申请日：2005-09-06

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  KNOESCHE CARSTEN ,  DAIS ANDREAS ,  CHENG TSUNG-CHIEH ,  MATTKE TORSTEN ,  STROEFER ECKHARD

IPC: C07C263/10 ,  B01J12/00 ,  B01J19/24 ,  B01J19/26 ,  C07B43/10 ,  C07C265/14

Abstract: The present invention relates to a process for preparing isocyanates and an apparatus suitable for this purpose, and also its use. In the process, an amine and phosgene, both in the gas phase, react in the presence of an inert medium. A number, n, of amine streams are reacted with a number, n +1, of phosgene streams in a reactor. The number n is a positive integer of at least 1. All amine and phosgene streams are introduced into the reactor through annular gaps for mixing.

公开(公告)号：DE102004030674A1

公开(公告)日：2006-01-19

申请号：DE102004030674

申请日：2004-06-24

Applicant: BASF AG

Inventor： DAIS ANDREAS ,  BECK ERICH ,  BIEHLER MANFRED

IPC: B05D3/06 ,  B29C35/08 ,  C08F2/46 ,  C08J3/28 ,  G21K5/02

Abstract: The invention relates to an apparatus and a method of producing molding materials and coatings on substrates by curing radiation-curable materials under an inert gas atmosphere by exposure to high-energy radiation.

公开(公告)号：DE102004030164A1

公开(公告)日：2006-01-19

申请号：DE102004030164

申请日：2004-06-22

Applicant: BASF AG

Inventor： KNOESCHE CARSTEN ,  WOELFERT ANDREAS ,  DAIS ANDREAS

IPC: C07C263/10 ,  C07C265/14

Abstract: The invention relates to a process for preparing isocyanates by reacting amines with phosgene in the gas phase in a reaction zone, with the reaction mixture being passed through a zone into which a liquid is sprayed to stop the reaction, wherein the reaction mixture is passed through a zone having a reduced flow cross section between the reaction zone and the zone into which the liquid is sprayed.

公开(公告)号：DE102005042609A1

公开(公告)日：2007-03-08

申请号：DE102005042609

申请日：2005-09-07

Applicant: BASF AG

Inventor： WEISMANTEL MATTHIAS ,  MARCO MICHAEL DE ,  DAIS ANDREAS ,  ESBROECK DOMINICUS VAN ,  POSSEMIERS KARL J ,  KAEY RONNY DE ,  MIERT LEO VAN

IPC: C08F2/04 ,  C08F2/01 ,  C08F2/38 ,  C08F20/06

Abstract: The invention relates to a process for continuously preparing water-absorbing polymer particles by mixing a monomer solution with a redox initiator consisting of at least one oxidizing agent and at least one reducing agent and polymerizing it, wherein the monomer solution is mixed with at least one oxidizing agent upstream of the polymerization reactor and the at least one reducing agent is metered into the polymerization reactor, and also to an apparatus for performing the process.

公开(公告)号：DE102005042608A1

公开(公告)日：2007-03-08

申请号：DE102005042608

申请日：2005-09-07

Applicant: BASF AG

Inventor： WEISMANTEL MATTHIAS ,  MARCO MICHAEL DE ,  DAIS ANDREAS ,  ESBROECK DOMINICUS VAN ,  POSSEMIERS KARL J ,  KAEY RONNY DE ,  MIERT LEO VAN

IPC: C08F2/44 ,  C08F2/01 ,  C08F20/06

Abstract: The present invention relates to a process for continuously preparing water-absorbing polymers by mixing a monomer solution with at least one crosslinker and polymerizing the resulting mixture, wherein the residence time of the mixture between the addition of the at least one crosslinker and the entry into the polymerization reactor is less than 180 seconds, and also to an apparatus for performing the process.