Abstract: The present invention relates to a multilayer system comprising (1) a first layer comprising at least one fluororubber, and (2) a second layer comprising at least one main elastomer material selected from the group consisting of acrylate rubber (ACM), ethylene-acrylate rubber (AEM) and ethylene-vinyl acetate copolymers (EVM) and combinations thereof.

Abstract: A new polymer composition comprising (i) a polymer having a main polymer chain derived from (ia) at least 30% by weight to 100% by weight based on the polymer of a first monomer which introduces at least one of a secondary carbon and a tertiary carbon to the main polymer chain, and (ib) in the range of from 0 to 70% by weight based on the polymer of at least one other monomer; (ii) at least one lithium salt; and (iii) at least one antioxidant is provided, as well as a process for producing a polymer vulcanizate comprising the step of vulcanizing the polymer composition mentioned above additionally comprising a vulcanization system. A method for improving the hot air aging and aqueous fluid resistance characteristics of the polymer mentioned above comprises the step of admixing said polymer with at least one lithium salt and at least one antioxidant is also provided.

Abstract: The invention relates to pellets of ?-olefin-vinyl acetate copolymers with a vinyl acetate content of ?40% by weight, based on the total weight of the ?-olefin-vinyl acetate copolymer, as an embedding material for solar modules, wherein the pellets comprise, as additives, at least one UV activator and at least one silane coupling reagent, and to the use thereof for the production of films for solar modules.

Abstract: The present invention is directed to a grafted ?-olefin-vinyl acetate copolymer containing crosslinkable silyl groups which is composed of one or more ?-olefin-vinyl acetate copolymers as component A, of which at least one, as component A1, has a vinyl acetate content of ?60% by weight, based on the total weight of the ?-olefin-vinyl acetate copolymer A1, and at least one unsaturated silane which contains at least one hydrolysable group and which is grafted on to the one or more ?-olefin-vinyl acetate copolymers, as component B. The invention if further directed to a processes and uses for the grafted ?-olefin-vinyl acetate copolymer.

Abstract: A grafted ?-olefin-vinyl acetate copolymer containing crosslinkable silyl groups which is composed of one or more ?-olefin-vinyl acetate copolymers as component A, of which at least one, as component A1, has a vinyl acetate content of ?60% by weight, based on the total weight of the ?-olefin-vinyl acetate copolymer A1, and at least one unsaturated silane which contains at least one hydrolysable group and which is grafted on to the one or more ?-olefin-vinyl acetate copolymers, as component B; and a process for the preparation of the grafted ?-olefin-vinyl acetate copolymer according to the invention, crosslinkable compositions containing the grafted ?-olefin-vinyl acetate copolymer according to the invention and at least one crosslinking catalyst, the use of the crosslinkable compositions according to the invention for the production of insulation or sheath materials for cables or lines, a process for crosslinking the compositions according to the invention by bringing the crosslinkable compositions into cont

Abstract: A new polymer composition comprising (i) a polymer having a main polymer chain derived from (ia) at least 30% by weight to 100% by weight based on the polymer of a first monomer which introduces at least one of a secondary carbon and a tertiary carbon to the main polymer chain, and (ib) in the range of from 0 to 70% by weight based on the polymer of at least one other monomer; (ii) at least one lithium salt; and (iii) at least one antioxidant is provided, as well as a process for producing a polymer vulcanizate comprising the step of vulcanizing the polymer composition mentioned above additionally comprising a vulcanization system. A method for improving the hot air aging and aqueous fluid resistance characteristics of the polymer mentioned above comprises the step of admixing said polymer with at least one lithium salt and at least one antioxidant is also provided.

Abstract: A vulcanizable composition based on ethylene-vinyl acetate copolymers is prepared with vinyl acetate content of at least 45% by weight, based on the copolymer, and these can be crosslinked in the absence of peroxides. These mixtures comprise at least one organotin catalyst and a specific crosslinking agent. A process is moreover described for preparation of these vulcanizable compositions, and their use is described for production of products with elastomeric properties.

Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5 wt. % of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5 wt. % of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5wt.% of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.

Abstract: New vulcanization accelerators, corresponding to the formula ##STR1## are particularly suitable for the production of vulcanized rubbers modified with lateral polar groups.

Abstract: Compositions comprising new halogenated butyl rubbers with a defined, low content of halogen, a defined content of non-halogenated double bonds and a defined content of anti-agglomeration/vulcanisation control agents and containing polymer compounds comprising special amidines, mercapto or zinc mercapto compounds and polymers possess outstanding mechanical and physiological properties, so that they are suitable for the production of tyres, particularly tyre inner liners, tyre sidewalls and tyre treads.

Abstract: New halogenated butyl rubbers, which have a defined content of halogen, a defined content of non-halogenated double bonds and a defined content of antiagglomeration/vulcanization control agents, exhibit outstanding mechanical and physiological properties, so that they are suitable for the production of tires, particularly tire inner liners, tire sidewalls and tire treads, and for pharmaceutical rubber articles.