Abstract: A wiper blade (10), in particular for a motor vehicle, includes a wiper strip (16) that is held between a first spring rail portion (34) and a second spring rail portion (36) by a fastening portion (24), and includes a substantially triangular lip portion (18). A cavity portion (22) is provided between the fastening portion (24) and the lip portion (18), at the lower wall (44) of which cavity portion, on the side facing the lip portion (18), at least one guide shoulder (56) for guiding the lip portion (18) is arranged.

Abstract: A wiper blade (10), in particular for a motor vehicle, is proposed with a wiping strip (16) mounted between a first spring bar portion (34) and a second spring bar portion (36) by a fastening portion (24) and having a substantially triangular lip portion (18). According to the invention, between the fastening portion (24) and the lip portion (18), a cavity portion (22) is provided, on which dampening means (52) are provided, in particular fastened thereto or formed in one piece therewith.

Abstract: The present invention relates to a method for producing a wiper blade element (10) for a wiper blade and/or a wiper blade having a wiper blade element (10), in particular for a windscreen wiper. In order to provide simple and economical wiper blade elements and wiper blades having excellent properties, in particular having high wiping quality, high abrasion resistance, a high degree of friction reduction and miming noise reduction and a long service life, in said method a particle layer (12) is applied to an elastomer substrate (11), the elastomer substrate (11) is vulcanised with the particle layer (12) deposited thereon, and, after vulcanisation, a friction-reducing material (13) is applied to the particle layer (12). The invention further relates to a wiper blade element and wiper blade produced in such a way.

Abstract: A process for the production of a coated rubber item, comprising: (i) provision of a semifinished product having the main shape of the rubber item, where the semifinished product is composed of a rubber composition comprising at least one rubber and at least one crosslinking agent; (ii) coating of the semifinished product with a solvent-free coating composition comprising at least one monomer amenable to free-radical polymerization, (iii) crosslinking of the rubber composition and polymerization of the coating composition, to give a coated rubber item; wherein the boiling point of the at least one monomer amenable to free-radical polymerization is ?150° C. and the crosslinking of the rubber composition takes place at the same time as the polymerization of the coating composition.

Abstract: A wiper rubber (10) for a wiper blade, especially for a windshield wiper, with an elastomer material comprising a polymer blend composed of at least one ethylene-propylene-diene rubber and/or at least one ethylene-propylene rubber, and at least one ethylene-vinyl acetate copolymer is disclosed. In order to provide a wiper rubber that has improved wiping quality and improved running properties, especially reduced or zero running noise, such as humming, whistling, squeaking, smacking, turnover noises, et cetera, both at moderate and especially at cold outside temperature, and especially also over a broad frequency range customary in wiper operation, the at least one ethylene-vinyl acetate copolymer, based on the total weight of the at least one ethylene-vinyl acetate copolymer, comprises a vinyl acetate content within a range from ?40% by weight to ?90% by weight, where the polymer blend, based on the total weight of the polymers in the polymer blend, comprises ?0.

Abstract: The present invention relates to a wiper rubber (10) for a windshield wiper, comprising a wiper rubber substructure (1) with a wiper lip section (2) and a reinforcement section (4), the wiper rubber substructure (1) being uncoated and being formed from ethylene-propylene-diene rubber and/or ethylene-propylene rubber. In order to improve the wear resistance, wiping characteristics and wiping quality of the wiper rubber (10), the surface of the wiper rubber substructure (1) at least in a partial region (2c, 2c?) of the wiper lip section (2) has been treated with ultraviolet radiation. The present invention further relates to a process for producing a wiper rubber, to a correspondingly produced wiper rubber and to a windshield wiper equipped therewith.

Abstract: A process for the production of a coated rubber item, comprising: (i) provision of a semifinished product having the main shape of the rubber item, where the semifinished product is composed of a rubber composition comprising at least one rubber and at least one crosslinking agent; (ii) coating of the semifinished product with a solvent-free coating composition comprising at least one monomer amenable to free-radical polymerization, (iii) crosslinking of the rubber composition and polymerization of the coating composition, to give a coated rubber item; wherein the boiling point of the at least one monomer amenable to free-radical polymerization is ?150° C. and the crosslinking of the rubber composition takes place at the same time as the polymerization of the coating composition.

Abstract: The invention relates to a wiper blade element (10) for a wiper blade, for example of a motor vehicle. In order to minimize the running noise, said wiper blade element (10) comprises an elastomer material (A) which comprises a polymer blend from at least one ethylene-propylene-diene rubber (EPDM) and/or at least one ethylene-propylene-rubber (EPM) and at least one ethylene-vinyl-acetate copolymer (EVM), said polymer blend containing at least one ethylene-vinyl acetate-copolymer having a vinyl acetate-content in the region of ?45 wt.-% to ?85 wt.-%, with respect to the total weight of the ethylene-vinyl acetate-copolymer. The invention also relates to said type of elastomer material (A) and to a wiper blade equipped with said type of wiper blade element (10).

Abstract: The invention relates to a wiper blade element (10) for a wiper blade, for example of a motor vehicle. In order to minimize the running noise, said wiper blade element (10) comprises an elastomer material (A) which comprises a polymer blend from at least one ethylene-propylene-(diene)-rubber and at least one polymer, selected from the group consisting of polynorbornene, trans-polyoctenamer, polyisobutylene, chloroprene rubber, butyl rubber, chlorobutyl rubber, bromobutyl rubber and mixtures thereof. In the polymer blend, the weight ratio of ethylene-propylene-(diene) rubber and/or ethylene-propylene rubber to the at least one polymer is in a range of 40:60-95:5. The invention also relates to said type of elastomer material (A) and a wiper blade equipped with said type of wiper blade element (10).

Abstract: The present invention relates to a wiper rubber (10) for a windshield wiper, comprising a wiper rubber substructure (1) with a wiper lip section (2) and a reinforcement section (4), the wiper rubber substructure (1) being uncoated and being formed from ethylene-propylene-diene rubber and/or ethylene-propylene rubber. In order to improve the wear resistance, wiping characteristics and wiping quality of the wiper rubber (10), the surface of the wiper rubber substructure (1) at least in a partial region (2c, 2c?) of the wiper lip section (2) has been treated with ultraviolet radiation. The present invention further relates to a process for producing a wiper rubber, to a correspondingly produced wiper rubber and to a windshield wiper equipped therewith.

Abstract: A process for the production of a wiper rubber, in particular for a windshield wiper, in which, in a step a), a wiper-rubber base (10) is formed from a natural and/or synthetic rubber, of which (10) at least a portion is coated with a natural- and/or synthetic-rubber dispersion (40) in a step b).