摘要:
A novel vulcanizable polymer composition is provided which is characterized by a specific combination of a polyamine crosslinking agent and a particular crosslinking accelerator. Furtheron polymer vulcanizates on the basis of such polymer compositions as well as method for preparing such polymer vulcanizate is provided, in particular in the form of mouldings or shaped parts.
摘要:
A novel vulcanizable polymer composition is provided which is characterized by a specific combination of a polyamine crosslinking agent, a particular crosslinking accelerator and an alkali metal salt. Further on polymer vulcanizates on the basis of such polymer compositions as well as a method for preparing such polymer vulcanizates is provided, in particular in the form of mouldings or shaped parts.
摘要:
A novel vulcanizable polymer composition is provided which is characterized by a specific combination of a polyamine crosslinking agent and a particular crosslinking accelerator. Furtheron polymer vulcanizates on the basis of such polymer compositions as well as method for preparing such polymer vulcanizate is provided, in particular in the form of mouldings or shaped parts.
摘要:
The present invention relates to vulcanizable polymer compositions comprising a very low molecular weight optionally hydrogenated nitrile rubber, at least one cross-linking agent, optionally at least one filler and optionally one or more further auxiliary products for rubbers, a process for preparing such vulcanizable polymer compositions, furtheron a process for vulcanizing such polymer compositions and the resulting vulcanizate, preferably as a shaped article.
摘要:
The present invention relates to a low molecular weight optionally hydrogenated nitrile rubber and a process for preparing a low molecular weight optionally hydrogenated nitrile rubber by molecular weight degradation of nitrile rubbers via a metathesis process in the presence of a transition metal complex catalyst in a specific reaction mixture, a polymer composite comprising at least one optionally hydrogenated nitrile rubber, at least one cross-linking agent and/or curing system, optionally at least one filler and optionally further auxiliary products for rubbers and a shaped article comprising the optionally hydrogenated nitrile rubber or the composite.
摘要:
This invention relates to a process for the hydrogenation of diene-based copolymers in the presence of catalysts on specific carrier materials containing at least one hyper-branched polymer.
摘要:
The present invention relates to specific water and solvent-free nitrile rubbers having specific functional groups and/or end groups, a process for the production thereof and the use thereof. This process involves removing volatile compounds from a fluid (F) containing (1) at least one nitrile rubber and (2) at least one volatile compound, wherein the process comprises at least the steps of a.) treating the fluid (F) in at least one conversation unit, b.) retreating the concentrated fluid from step a.) in at least one retreating unit and c.) feeding the retreated concentrated fluid from step b.) into at least one retreating unit.
摘要:
The present invention relates vulcanisable guanidine-free mixtures containing ethylene acrylate (AEM), polyacrylate (ACM) and/or hydrogenated acrylonitrile (HNBR)-based rubbers compounds having an improved scorch resistance, to vulcanisates, prepared by cross-linking this vulcanisable mixtures and their use in automotive, oil-field and/or off-shore applications.
摘要:
The present invention relates to an elastomeric composition containing a nitrile rubber, preferably hydrogenated, and a filler. Compositions according to the present invention have high filler levels, excellent processability, and very good resistance to aggressive fluids and fuels compared to known HNBR compositions.
摘要:
This invention relates to a process for the hydrogenation of diene-based copolymers in the presence of catalysts on specific carrier materials containing at least one hyper-branched polymer.