Abstract: The present invention relates to novel processes for producing bis[3-isopropenyl-?,?-dimethylbenzyl]carbodiimide, to the thus-produced bis[3-isopropenyl-?,?-dimethylbenzyl]carbodiimide and to the use thereof as a hydrolysis inhibitor in polyurethane (PU)-based systems, preferably thermoplastic TPU, PU adhesives, PU casting resins, PU elastomers or PU foams.
Type:
Application
Filed:
June 3, 2015
Publication date:
March 30, 2017
Applicant:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm LAUFER, Martina SCHOENHABER, Armin ECKERT, Oliver HERD, Rolf SPERBER
Abstract: The invention relates to the use of carbodiimide-containing compositions for controlling pot life in the production of polyurethane (PU)-based systems, preferably PU elastomers, PU adhesives, PU casting resins or PU foams.
Abstract: The invention relates to novel carbodiimides having terminal urea and/or urethane groups, methods for the preparation thereof and use thereof as stabilizers in ester-based polyols, in polyethylene terephthalate (PET), in polybutylene terephthalate (PET), in polytrimethylene terephthalate (PTT), in copolyesters, in thermoplastic polyester elastomers (TPE E), in ethylene vinyl acetate (EVA), in polylactic acid (PLA) and/or in PLA derivatives, in polybutylene adipate terephthalates (PBAT), in polybutylene succinates (PBS), in polyhydroxyalkanoates (PHA), in blends, in triglycerides, in thermoplastic polyurethanes, in polyurethane elastomers, in PU adhesives, in PU casting resins, for PU coatings or in PU foams.
Type:
Grant
Filed:
May 9, 2014
Date of Patent:
December 6, 2016
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Benjamin Bechem, Armin Eckert
Abstract: The present invention relates to novel biobased carbodiimides, a process for production thereof and use thereof. The biobased carbodiimides according to the invention comprise the reaction product of at least one carbodiimide and a carbon acid compound isolated or produced from renewable raw materials and having a functionality>1 and/or a hydroxy carboxylic ester having 2-24 carbon atoms.
Type:
Grant
Filed:
May 22, 2014
Date of Patent:
September 27, 2016
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Armin Eckert, Franco Orsini, Robert Eiben
Abstract: Carbodiimide containing compositions include diilsocyenates, polyols, and liquid carbodiimide of the formula where R1, R2, R4 and R6 are each independently C3-C6-alkyl, and R3 and R5 are each independently C1-C3-alkyl.
Type:
Grant
Filed:
March 22, 2013
Date of Patent:
September 6, 2016
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Armin Eckert, Martina Hauck
Abstract: The present invention relates to novel catalysts for the production of cast polyamide, to processes for production thereof and to the use thereof.
Abstract: The present invention relates to a mixture which can be used as vulcanization accelerator, to a process for producing the mixture and to use of the mixture, to vulcanizates which comprise the said mixtures or which comprise corresponding individual constituents of the mixture, and also to vulcanizates which are produced with use of the said mixture.
Type:
Grant
Filed:
July 30, 2010
Date of Patent:
August 9, 2016
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Martin Säwe, Dietmar Hoff, Willi Grieshaber, Harald Kleinknecht
Abstract: The invention relates to novel batches of cross-linking agents, containing marking substances, to novel cross-linkable rubber mixtures, to a method for the production thereof and to the use of same.
Type:
Grant
Filed:
October 20, 2010
Date of Patent:
July 12, 2016
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Andreas Schroeder, Martin Saewe, Vincenza Meenenga
Abstract: The invention relates to novel processes for controlling (extending) the pot life in polyurethane (PU) based systems that are chain-extended with diamines, preferably PU elastomers, PU adhesives, PU casting resins.
Type:
Grant
Filed:
March 22, 2013
Date of Patent:
April 26, 2016
Assignee:
Rhein Chemie Rheinau, GmbH
Inventors:
Wilhelm Laufer, Armin Eckert, Uwe Haas, Uwe Wuertz
Abstract: The invention relates to innovative carbodiimides, to a process for preparing them and to the use thereof as stabilizer, crosslinker and/or compatibilizer in thermoplastics, ester-based polyols for polyurethane applications, in rigid foam, in flexible foam or, for example, in CASE (Coatings Adhesives Sealants Elastomers) applications.
Type:
Grant
Filed:
April 27, 2012
Date of Patent:
December 1, 2015
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Benjamin Bechem, Armin Eckert
Abstract: The present invention relates to novel anticorrosion additives for manufacturing processes, comprising at least one triazole and the reaction product of at least one alkylene glycol and at least one carboxylic anhydride, to a process for preparation thereof and to the use thereof for corrosion protection for aluminum and/or aluminum alloys.
Type:
Grant
Filed:
December 6, 2011
Date of Patent:
September 1, 2015
Assignee:
Rhein Chemie Rheinau Gmbh
Inventors:
Sandra Leimenstoll, Anke Blaul, Reinhard Stier, Isabell Lange, David Larem
Abstract: The present invention relates to novel mixtures based on sulfur-crosslinked triglyceride, a process for their preparation, and their use as fertilizers, in particular for promoting the growth of plants which require sulfur.
Abstract: The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides.
Type:
Grant
Filed:
April 30, 2014
Date of Patent:
June 23, 2015
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Andre Palzer, Volker Wenzel
Abstract: The present invention relates to novel foils for solar cells which feature improved hydrolysis resistance, and to the solar cells comprising said foils.