Patents by Inventor Reiner Kranwetvogel

Reiner Kranwetvogel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing polyalkylene ether-modified polysiloxanes and use thereof
    Patent number: 10851210
    Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH— terminated oligo- or polyalkylene ethers in the presence of the tetra-n-C1-C6-alkoxy-titanate as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 1, 2020
    Assignee: BASF SE
    Inventors: Lothar Engelbrecht, Wolfgang Peter, Clemens Auschra, Ralf Knischka, Reiner Kranwetvogel
  • Process for preparing polyalkylene ether-modified polysiloxanes and use thereof
    Patent number: 10752736
    Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH-terminated oligo- or polyalkylene ethers in the presence of an alkanesulfonic acid as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: August 25, 2020
    Assignee: BASF SE
    Inventors: Lothar Engelbrecht, Wolfgang Peter, Andreas Gernandt, Clemens Auschra, Ralf Knischka, Reiner Kranwetvogel
  • Block copolymers having a polydimethylsiloxane block
    Patent number: 10301434
    Abstract: The present invention relates to novel block copolymers of general formula (I). The invention further relates to a method for producing such block copolymers and to the use of such block copolymers, particularly as additives in liquid coating-agent compositions. A{X—[O—C(O)NH—Y—NH—C(O)—O-M-B]k}n (I).
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 28, 2019
    Assignee: BASF SE
    Inventors: Lothar Engelbrecht, Frank Pirrung, Clemens Auschra, Ralf Knischka, Reiner Kranwetvogel
  • PROCESS FOR PREPARING POLYALKYLENE ETHER-MODIFIED POLYSILOXANES AND USE THEREOF
    Publication number: 20180305548
    Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH— terminated oligo- or polyalkylene ethers in the presence of the tetra-n-C1-C6-alkoxy- titanate as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.
    Type: Application
    Filed: November 2, 2016
    Publication date: October 25, 2018
    Applicant: BASF SE
    Inventors: Lothar ENGELBRECHT, Wolfgang PETER, Clemens AUSCHRA, Ralf KNISCHKA, Reiner KRANWETVOGEL
  • PROCESS FOR PREPARING POLYALKYLENE ETHER-MODIFIED POLYSILOXANES AND USE THEREOF
    Publication number: 20180298149
    Abstract: The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH-terminated oligo- or polyalkylene ethers in the presence of an alkanesulfonic acid as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.
    Type: Application
    Filed: November 2, 2016
    Publication date: October 18, 2018
    Applicant: BASF SE
    Inventors: Lothar ENGELBRECHT, Wolfgang PETER, Andreas GERNANDT, Clemens AUSCHRA, Ralf KNISCHKA, Reiner KRANWETVOGEL
  • BLOCK COPOLYMERS HAVING A POLYDIMETHYLSILOXANE BLOCK
    Publication number: 20150337086
    Abstract: The present invention relates to novel block copolymers of general formula (I). The invention further relates to a method for producing such block copolymers and to the use of such block copolymers, particularly as additives in liquid coating-agent compositions. A{X—[O—C(O)NH—Y—NH—C(O)—O-M-B]k}n (I).
    Type: Application
    Filed: January 17, 2014
    Publication date: November 26, 2015
    Applicant: BASF SE
    Inventors: Lothar ENGELBRECHT, Frank PIRRUNG, Clemens AUSCHRA, Ralf KNISCHKA, Reiner KRANWETVOGEL
  • Method for producing scratch-resistant coatings
    Patent number: 6777458
    Abstract: A process for producing scratch-resistant coatings, encompassing the following steps: applying at least one UV-curable coating composition to at least one surface of an article to be coated, said coating composition comprising at least one polymer and/or oligomer P1 containing on average at least one ethylenically unsaturated double bond per molecule, and curing the coating composition by exposure to UV radiation, which comprises conducting the curing of the coating composition under an oxygen-containing protective gas which has an oxygen partial pressure in the range from 0.2 to 18 kPa.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: August 17, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Jaworek, Reinhold Schwalm, Rainer Königer, Reiner Kranwetvogel