Abstract: The invention relates to novel processes for determining the quality of an uncrosslinked rubber mixture by means of ultrasound and to an apparatus suitable for this purpose.
Type:
Application
Filed:
July 27, 2012
Publication date:
December 18, 2014
Applicant:
RHEIN CHEMIE RHEINAU GMBH
Inventors:
Andreas Schroeder, Lars Wawrzinski, Ludwig Graeff
Abstract: The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides.
Type:
Application
Filed:
April 30, 2014
Publication date:
November 13, 2014
Applicant:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm LAUFER, Andre PALZER, Volker WENZEL
Abstract: The present invention relates to novel sulphur-bridged compounds, in which within the molecule there is at least one fatty acid bonded by way of at least one sulphur bridge to at least one polyalkylene glycol ester, the reaction product of a fatty acid with a polyalkylene glycol, and these have from 8 to 29% by weight sulphur content, to use of these as sulphur carrier and lubricant additive and to production of the said compounds.
Type:
Application
Filed:
April 16, 2014
Publication date:
October 30, 2014
Applicant:
Rhein Chemie Rheinau GmbH
Inventors:
David LAREM, Sandra HORSTMANN, Thomas ROSSRUCKER, Markus KUILDER, Michael KOENIG
Abstract: The invention relates to a process and an apparatus for the preparation of a crosslinkable rubber mixture for vehicle tires, lines, drive belts and other industrial rubber articles, which can be carried out at least semicontinuously. The present invention is based on the discovery that the experiments known from the prior art to carry out the batchwise process usually used at least partly continuously have failed in particular because of the problem that the crosslinking agents have to be mixed rapidly and homogeneously with the base mixture, also referred to as rubber base mixture, without the mixture consisting of the base mixture and the crosslinking agents heating up too strongly. According to the invention, attention was therefore focussed on reliably mixing the base mixture homogeneously with the crosslinking agents and minimizing the mixing time. A first measure for achieving the desired aim consists in first mixing the crosslinking agents with one another before they are mixed with the base mixture.
Type:
Grant
Filed:
June 26, 2009
Date of Patent:
September 30, 2014
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Anno Borkowsky, Andreas Schröder, Hans-Martin Issel, Florian Fischer, Reinhard Uphus
Abstract: The invention relates to novel thixotropic corrosion protection additives, to carrier substances comprising these corrosion protection additives, to processes for their preparation and to their use for preservative liquids and lubricating greases.
Abstract: The present claims relate to aqueous dispersion adhesives comprising at least one polyurethane dispersion and at least one carbodiimide having the general formula R?—(—N?C?N—R—)m—R?, in which m corresponds to an integer from 1 to 500, R=arylene and/or C7-C11 aralkylene, R??R—NCO, and R??—NCO, where in R?, independently of one another, R1 and R2 are identical or different and represent a C1-C6 alkyl, C6-C10 cycloalkyl or C7-C18 aralkyl radical.
Type:
Grant
Filed:
October 7, 2011
Date of Patent:
July 8, 2014
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Peter Schuster, Christian Scheffner
Abstract: The present invention relates to novel bonding agents based on carbodiimides, to aqueous resorcinol-formaldehyde-latex dispersion comprising bonding agent, to adhesion-improved fibres, to processes for production thereof, and to use thereof for improving adhesion in tyres.
Type:
Grant
Filed:
August 23, 2011
Date of Patent:
July 1, 2014
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Anke Blaul, Armin Eckert, Andrea Fruth, Ana Maria Cano Sierra
Abstract: The invention relates to the invention provides innovative long-lived and hydrolysis-stable biobased plastics based on polyhydroxyalkanoate (PHA) and featuring sufficient melt stability, a method for producing them and their use.
Type:
Application
Filed:
May 2, 2012
Publication date:
June 5, 2014
Applicant:
RHEIN CHEMIE RHEINAU GMBH
Inventors:
Andrea Fruth, Andreas Krug, Bernd Wiloth
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 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:
Application
Filed:
April 27, 2012
Publication date:
May 1, 2014
Applicant:
RHEIN CHEMIE RHEINAU GMBH
Inventors:
Wilhelm Laufer, Benjamin Bechem, Armin Eckert
Abstract: A method is described for producing lactamates by reacting alcoholates with lactams, wherein a reaction mixture comprising at least one alcoholate and at least one lactam is subjected to thin film evaporation.
Type:
Grant
Filed:
February 5, 2009
Date of Patent:
April 29, 2014
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Hans Kasper, Stefan Schattner, Klaus Allgoewer, Bernd Kray, Michael Wuehr
Abstract: The invention concerns novel weather-resistant polyurethane casting compounds, a process for preparation thereof and use thereof in the building sector.
Abstract: The invention relates to a composition comprising at least one microgel and at least one functional additive, to processes for the preparation thereof, to uses of the compositions, and to microgel-containing polymers, rubbers, lubricants, coatings, etc. prepared therefrom.
Type:
Grant
Filed:
October 18, 2012
Date of Patent:
January 14, 2014
Assignees:
LANXESS Deutschland GmbH, Rhein Chemie Rheinau GmbH
Inventors:
Achim Fessenbecker, Patrick Galda, Torsten Ziser, Thomas Früh, Günther Steppan, Werner Obrecht
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:
Application
Filed:
May 19, 2011
Publication date:
October 17, 2013
Applicant:
RHEIN CHEMIE RHEINAU GMBH
Inventors:
Wilhelm Laufer, Armin Eckert, Franco Orsini, Robert Eiben
Abstract: The present invention relates to aqueous resorcinol-formaldehyde-latex dispersions comprising at least one carbodiimide based on compounds of the formula (I) R?—(—N?C?N—R—)m—R???(I), where, m is an integer from 1 to 500, R=C1-C18-alkylene, C5-C18-cycloalkylene-, arylene and/or C7-C12-aralkylene, R?=R—NCO, R—NHCONHR1, R—NHCONR1R2, R—NHCOOR3 or R—NHCO—R5 and R?=—NCO, —NHCONHR1, —NHCONR1R2, —NHCO—R5 or —NHCOOR3, where R1 and R2 in R? are mutually independently identical or different and are a C1-C6-alkyl moiety, C6-C10-cycloalkyl moiety or C7-C12-aralkyl moiety, and R3 is as defined for R1 or is a polyester moiety or a polyamide moiety or —(CH2)l—(O—(CH2)k—O)g—R4, —C8H4(OH) or —C8H3(OH)—((CH2)h—C6H4(OH))y and R5=epoxide, phenol, oxime, resorcinol, polyethylene glycols and/or lactam, preferably caprolactam, where l=from 1 to 3, k=from 1 to 3, g=from 0 to 12, h=from 1 to 2 and y=from 1 to 50, and R4=H or C1-C4-alkyl.
Type:
Grant
Filed:
August 23, 2011
Date of Patent:
July 9, 2013
Assignee:
Rhein Chemie Rheinau GmbH
Inventors:
Wilhelm Laufer, Anke Blaul, Armin Eckert, Andrea Fruth, Ana Maria Cano Sierra
Abstract: The invention relates to a composition comprising at least one microgel and at least one functional additive, to processes for the preparation thereof, to uses of the compositions, and to microgel-containing polymers, rubbers, lubricants, coatings, etc. prepared therefrom.
Type:
Application
Filed:
October 18, 2012
Publication date:
February 14, 2013
Applicants:
RHEIN CHEMIE RHEINAU GMBH, LANXESS DEUTSCHLAND GMBH
Inventors:
LANXESS Deutschland GmbH, Rhein Chemie Rheinau GmbH