Patent application number | Description | Published |
20090054597 | Metathesis of Nitrile Rubbers In the Presence of Transition Metal Complex Catalysts - A novel process for the metathetic degradation of nitrile rubbers is provided which uses specific transition metal complex catalysts showing an increased activity. | 02-26-2009 |
20090069516 | CATALYST SYSTEMS AND THEIR USE FOR METATHESIS REACTIONS - Novel catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, which contain a specific salt additive in addition to the metathesis catalyst are provided. | 03-12-2009 |
20090076226 | CATALYSTS FOR METATHESIS REACTIONS - Novel catalysts for metathesis reactions, in particular for the metathesis of nitrile rubber, are provided. | 03-19-2009 |
20090076227 | PROCESS FOR THE METATHETIC DEGRADATION OF NITRILE RUBBER - The metathetic degradation of nitrile rubber can be improved by use of a combination of metal-carbene complex catalysts with specific transition metal additives. | 03-19-2009 |
20090105432 | METHOD FOR POLYMERISING ETHYLENICALLY UNSATURATED POLYISOBUTENE - The invention relates to a method for polymerising ethylenically unsaturated monomers, wherein ethylenically unsaturated monomers are polymerised in the presence of a solvent-stable transition metal complex having slightly co-ordinating anions as polymer catalysts. The invention also relates to specific solvent-stable transition metal complexes having slightly co-ordinating anions. The invention also relates to highly reactive copolymers which are made of monomers comprising isobutene and at least one vinylaromatic compound which can be obtained according to said inventive method. | 04-23-2009 |
20100087600 | Catalyst Systems and their use for Metathesis Reactions - A novel process for reducing the molecular weight of nitrile rubber in the presence of specific catalyst systems containing the metathesis catalyst and also a specific addition of fluorine-containing boron compounds is provided. | 04-08-2010 |
20100093944 | CATALYST SYSTEMS AND THEIR USE FOR METATHESIS REACTIONS - Novel catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, which contain a specific addition of boric acid compounds. | 04-15-2010 |
20120116026 | PROCESS FOR DEGRADING NITRILE RUBBERS IN THE PRESENCE OF CATALYSTS HAVING AN INCREASED ACTIVITY - A process of degrading nitrile rubbers comprises subjecting them to a metathesis reaction in the presence of specific catalysts with increased activity. | 05-10-2012 |
20130303700 | BLENDS OF PARTIALLY HYDROGENATED NITRILE RUBBER AND SILICONE RUBBER, VULCANIZABLE MIXTURES AND VULCANIZATES BASED THEREON - Novel rubber blends based on partly hydrogenated nitrile rubber and silicone rubber containing vinyl groups are provided, these being produced by a metathesis reaction in the presence of suitable catalysts, as are vulcanizable mixtures and vulcanizates based thereon, and the corresponding production processes. | 11-14-2013 |
20130345366 | PARTIALLY HYDROGENATED NITRILE RUBBERS - Provided are new partially hydrogenated nitrile rubbers which are distinguished by a specific ratio of viscosity to molecular weight, and also vulcanizable mixtures and vulcanizates based on said rubbers, and also the associated preparation processes. The partially hydrogenated nitrile rubbers lead to compounded formulations having advantageous processing properties in conjunction with excellent vulcanizate properties. | 12-26-2013 |