Abstract: A laser system may include a controller configured to direct a plurality of temporally spaced-apart electrical pulses to a device that optically pumps a lasing medium, and a lasing medium configured to output a quasi-continuous laser pulse in response to the optical pumping. The plurality of temporally spaced-apart electrical pulses may include (a) a first electrical pulse configured to excite the lasing medium to an energy level below a lasing threshold of the lasing medium, and (b) multiple second electrical pulses following the first electrical pulse. The quasi-continuous laser pulse is output in response to the multiple second electrical pulses.

Abstract: A method is provided for sealing discontinuities in vehicle bodywork, using an at least two-layer adhesive product which comprises at least one thermally activatable adhesive layer and a film layer of a polymeric material, where first the adhesive product is positioned with the adhesive layer onto the discontinuity for sealing, the adhesive layer sealingly wets the discontinuity, optionally after temperature increase, at elevated temperature the thermal activation of the adhesive ensues, characterized in that the adhesive layer used comprises a layer of a thermally activatable adhesive, specifically a layer based on a vulcanizable adhesive, and the thermal activation takes place with vulcanization of the adhesive.

Abstract: A method is provided for sealing discontinuities in vehicle bodywork, using an at least two-layer adhesive product which comprises at least one thermally activatable adhesive layer and a film layer of a polymeric material, where first the adhesive product is positioned with the adhesive layer onto the discontinuity for sealing, the adhesive layer sealingly wets the discontinuity, optionally after temperature increase, at elevated temperature the thermal activation of the adhesive ensues, characterized in that the adhesive layer used comprises a layer of a thermally activatable adhesive, specifically a layer based on a vulcanizable adhesive, and the thermal activation takes place with vulcanization of the adhesive.

Abstract: Pressure sensitive adhesive (PSA) compositions and methods are provided and may comprise a) at least one crosslinkable polymer constructed at least of (i) at least two monomers selected from monomer A, monomer B, and monomer C, wherein each monomer, independently of one another, comprises an olefinically unsaturated aliphatic or cycloaliphatic hydrocarbon, and (ii) at least one comonomer D comprising an olefinically unsaturated monomer having at least one carboxylic acid group and/or carboxylic anhydride group. The PSA compositions and methods may also comprise b) at least one organosilane and c) at least one tackifier resin.

Abstract: A process for the continuous and solvent-free production of a pressure-sensitive adhesive based on solid EPDM rubber, the pressure-sensitive adhesive produced thereby, and an adhesive tape containing the pressure-sensitive adhesive. The pressure-sensitive adhesive is produced in a continuously operating assembly in the form of a planetary roller extruder having a filling section and a compounding section, the compounding section consisting of at least two coupled roller cylinders, by a) feeding the solid EPDM rubber and any further components into the filling section of the planetary roller extruder, b) transferring the components from the filling section into the compounding section, c) adding liquid EPDM rubber, plasticizer, tackifier resin, and any further components to the compounding section, and d) discharging the resultant pressure-sensitive adhesive, which process comprises feeding the solid EPDM rubber as a melt into the filling section.

Abstract: The invention relates to an adhesive tape comprising a backing consisting of a film, to at least one side of which an adhesive mass is applied, wherein the film is a monoaxially stretched film, at least 95 wt. % of which, preferably at least 99 wt. % of which, particularly preferably 100 wt. % of which consists of a propylene polymer composition having different phases and comprising the following components: i) 80 to 99 wt. %, preferably 93 to 96 wt. %, relative to the total weight of components i) and ii), of a propylene polymer matrix which comprises a propylene homopolymer and particularly preferably a propylene copolymer, preferably a propylene random copolymer, which has a comonomer selected from ethylene or C4- to C10-?-olefins, the propylene polymer matrix having a comonomer content of not more than 15 wt. %, ii) 1 to 20 wt. %, preferably 4 to 7 wt.