Abstract: A power drill has a housing holding a planetary gear transmission and a motor. A drive stem rotatable in the housing about the axis is rotationally coupled to the planet carrier, and a chuck body is rotatable on the housing. A driver axially bearing on the jaws is axially shiftable to position jaws in the chuck, and a sleeve threaded to the driver is rotatable to position the jaws in the chuck body. The drive stem can be coupled either to the chuck body for rotating a tool held by the jaws in a screw or drill mode or to the sleeve in a tighten/loosen mode for tool exchange. A first spring bears axially inward against a front face of the transmission ring gear with an adjustable axially inwardly directed force, and a second spring bears axially against a rear face of the ring gear.

Abstract: A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.

Abstract: A drill-chuck body is rotatable about an axis and formed with a plurality of passages opening axially rearward at a rear face of the body and radially outwardly at windows in a side of the body. Jaws displaceable between front and rear positions in the passages each have a row of teeth exposed radially outwardly at the respective windows. A tightening ring rotatable about the axis is formed with an internal screwthread engaged at the windows with the teeth such that rotation of the ring moves the jaws between the front and rear positions. A tightening sleeve fitted around and coupled rotationally to the tightening ring extends axially rearward past the windows. This brace ring is radially inwardly engaged with the body and engages radially outwardly between the windows and the rear face with the tightening sleeve so as to coaxially center it on the body.

Abstract: A peptide having an amino acid sequence containing at least eight consecutive amino acids of the human lactoferrin protein or of the bovine lactoferrin protein. The peptide is suitable as a cell-penetrating peptide. A complex of the peptide and a cargo molecule non-covalently bound to the peptide. The cargo molecule may be a nucleic acid, an amino acid, a peptide, a protein, a carbohydrate, a lipid, or a small molecule. A method of penetrating or transfecting a cell using the complex.

Abstract: Provided is an adhesive composition suitable for producing a laminate. The composition contains specified amounts of (a) polyisobutyl methacrylate, isobutyl methacrylate or a mixture thereof, (b) butyl acrylate, (c) polybutyl acrylate, (d) a (meth)acrylate compound and (e) a silicon compound. These components may be in polymerizable form, in polymerized form or in a combination of polymerizable form and polymerized form. The amounts of components (a) to (e) total 100 wt. % and the amount of (b) and (c) represents 30 to 90 wt. %, based on the sum total of components (a) to (e). The composition may optionally further contain from 0.1 to 6 wt. %, based on the total weight of the adhesive composition, of additives different from components (a) to (e) described above.

Abstract: The invention refers to a Process for preparing a bio-resorbable polyester the form of a powder with a bulk density of 0.3 g/ml or more, a tapped density of 0.4 g/ml or more and a specific surface area of 2.0 m2/g or less comprising the steps a. dissolving a bio-resorbable polyester in a first solvent to form a polymer solution, b. contacting the polymer solution with a second solvent which is a non-solvent for the bioresorbable polyester and which is mainly water to result the precipitation of the bio-resorbable polyester in the form of a wet polymer mass, c. pre-drying the wet polymer mass at a temperature below the TgO of the bio-resorbable polyester, d. comminuting the pre-dried polymer mass to polymer particles with a size below 10 mm, e. drying the comminuted polymer particles below the TgO of the bio-resorbable polyester to a residual water content of 1% or less by weight/weight, f.

Abstract: The present invention relates to a process for preparing methyl methacrylate by direct oxidative esterification of methacrolein and the preparation of methacrolein. It is a feature of this novel process that it was possible to distinctly increase the yield and the efficiency of the process compared to the prior art through a sequence of different distillation steps.

Abstract: A gripper for use in combination with a pin has a body having an axially open cavity in which the pin is engageable. Jaws in the cavity are radially displaceable between an inner holding position bearing radially inwardly on and gripping the pin and an outer release position in which the pin can be removed axially from the cavity. An actuating element in the body is engageable with the jaws and shiftable between end positions corresponding to the inner and outer positions of the jaws. An actuator connected to the actuating element can move it from one of the end positions into the other of the end positions. An externally accessible connecting or operating member on the chuck body is connected through an emergency release with the jaws for moving the jaws into the outer release position as the result of connection to or operation of the member.

Abstract: A drill chuck has a chuck body centered on an axis, made of plastic, and formed with an axially rearwardly open drive-spindle seat, at least one axially extending slot of ring-segment section opening radially inward into the seat, an axially forwardly open tool-holding cavity, and a plurality of angled jaw guides. Respective jaws are movable in the guides and engaged by a threaded ring axially fixed on the body and rotatable about the axis thereon. A tightening sleeve rotatable about the axis on the body is connected to the ring for rotating same.

Abstract: The invention refers to a coating composition which, calculated on dry weight, is comprising at least 20% by weight polyvinyl alcohol and 0.1 to 20% by weight, calculated on the weight of the polyvinyl alcohol, of a water-insoluble (meth)acrylate copolymer comprising quaternary ammonium groups, wherein the viscosity of an aqueous dispersion comprising that coating composition with 25% (w/w) solid content at 22° C. is 200 mPa·s or less.

Abstract: A power drill has a rotatable spindle extending from a power-unit housing, a chuck body rotationally fixed to the spindle, a jaw guide carried on the chuck body and rotatable relative thereto about the axis, jaws carried in the chuck body, and a pusher element rotatable about the axis in the chuck body and fixed to and bearing axially on the jaws. Screwthreads between the pusher element and the spindle is effective to move the jaws radially on rotation of the spindle about the axis relative to the guide. A coupling sleeve rotationally fixed to the jaw guide is movable between a tightening position rotationally fixed to the housing for movement of the jaws by the pusher element on rotation of the spindle and a drilling position rotationally fixed to the spindle and rotatable relative to the guide for joint rotation of the guide, jaws, and spindle.

Abstract: The present invention relates to a novel process for producing ceramic materials, in particular refractory materials having a reduced relative density. In particular, the invention relates to a process for producing light, refractory materials having non-contiguous pores based on shaped and unshaped materials. These materials can be used as working lining in high-temperature applications. The process is based on the production of spherical, closed and isolated pores in the microstructure of the material. The pores having a pore diameter which can be set in a targeted manner are generated by use of polymer particles, in particular polymethacrylates, in particular polymers or copolymers prepared by means of suspension polymerization, as pore formers which can be burnt out. The polymers or copolymers are present in the form of small spheres having a defined diameter.

Abstract: The present invention relates to novel light guide plates composed of a reflector film, of a transparent sheet and of, situated between these, reactive hot-melts or colourless thermoplastics applied by structured printing. No fixed direct connection exists here between the reflector film and the transparent sheet. Light guide plates, e.g. in backlight units (BLUs) or in light panels, have maximum uniformity of thickness and are composed of colourless transparent materials. Light is input here by way of example from LED or CCFL light sources by way of one or more edges of the light guide plate. On at least one surface of the light guide plate there is a structure which scatters the light. When a light beam is incident on the said structure, it is scattered at an angle smaller than the angle of total reflection, and is thus emitted from the plate. The light is emitted at both sides of the plate, and on one side there is therefore mostly a white reflector film which is not in optical contact with the plate.

Abstract: The present invention concerns regulating the water content in a process for production of methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for production of methacrylic acid, methyl methacrylate or else of active, aroma or flavour chemicals. The present invention is particularly concerned with regulating the water content in a process for production of methacrolein from formaldehyde and propionaldehyde via a Mannich condensation.

Abstract: A method of penetrating a cell where the cell is contacted with a complex that includes (A) a peptide comprising at least 8 consecutive amino acids of the human lactoferrin protein or of the bovine lactoferrin protein; and (B) a cargo molecule bound to the peptide.

Abstract: A high-frequency spindle has a tube shaft extending along and rotatable about an axis, a chuck carried on a front end of the shaft, adapted to fit with a tool or tool holder, and a ball cage in the shaft and having a radially extending window. A locking ball os radially displaceable in the window between a holding position engaging in a seat of the tool and a freeing position clear of the seat. An angled surface is engageable radially with the ball, and an actuating rod is axially shiftable and coupled to the cage or to the angled surface. An actuator can axially shift the rod and thereby relatively axially displace the ball and the angled surface and cam the ball with the angled surface into the holding position. A primary spring biases the rod so as shift the ball with the angled surface into the holding position.

Abstract: The invention describes a composition, especially in the form of a 2-component system comprising (meth)acrylated polyether polyols and/or polyester polyols and/or (meth)acrylated hydroxy-functionalized triglycerides with an adjustable pot life, especially for cable potting compounds.

Abstract: The present invention relates to the oxidative combustion of amine-containing wastewaters, especially in a process for preparing methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for preparation of methacrylic acid, methyl methacrylate, or else of active ingredients, odorants or flavorings. More particularly, the present invention relates to an oxidative combustion of the amine-containing wastewaters with only low nitrogen oxide formation.

Abstract: The invention relates to a device with a sensor arrangement, which is able to detect magnetic or magnetized oral administration forms after oral take-up, moreover tracks the dissolution thereof via the reduction or disappearance of the magnetic field of the oral administration form, and with a log function, which records a subjective evaluation on the part of the human wearer of the sensor arrangement during or after the oral take-up.