Abstract: An endoscope provided with hygiene protection includes a cover, which is closed at its distal end and which is transparent for optical information, at least on the front side thereof, and which can be rolled thereon in the direction of the axis of the endoscope. The endoscope further includes one or more working channels extending in a parallel position in relation to the endoscope and terminating in an open manner on the distal end of the cover. The working channels are only connected to the distal end of the cover. There are also one or more vacuum channels having one or several openings, which terminate on the side facing away from the patient and are in addition to the one or more working channels. The working channels are positioned in between the outer side of the endoscope and the inner side of the cover. A method for adding hygiene protection to an endoscope, which includes the application of sub-atmospheric pressure between the endoscope and the cover, is also disclosed.

Abstract: Lubricant base materials containing ester groups may be stabilised by adding a small quantity of carbodiimides and the service life of lubricants manufactured therefrom may be decisively extended.

Abstract: Thermoplastic moulding compounds of 99.8-95% by weight of a mixture consisting of an aromatic polycarbonate, a graft polymer and optionally a thermoplastic vinyl polymer and/or the usual additives and 0.2 to 5% by weight of a polyalkylene ether which has been grafted with a polymer of C.sub.1 -C.sub.6 alkyl(meth)acrylates, cyclo-alkylacrylates or -methacrylates and optionally styrene or .alpha.-methylstyrene.

Abstract: As assembly space cover for installation modules, especially foamed ones, in the sanitary field, in the form of a molded apron (5) to be joined to the bottom side of an installation module (1) with its outside surface substantially flush with the front surface of the installation module. A metal reinforcement (7) substantially resistant to bending and embedded in the foam of the apron (5) imparts strength and dimensional stability to the apron.

Abstract: An installation module or block, comprising a molded body, especially a foamed body (4) in which the pipes and structural members (5,6,7) needed for supply to and discharge from corresponding sanitary equipment are embedded as well as the fastening means needed to mount the sanitary equipment. A fire protection substance (10) spread substantially across the full area of the module is molded in the module between the front and rear walls (8, 9) thereof. Thus, when an installation module is built into a wall (3), that wall directly corresponds to the fire resistance class required under the building regulations.

Abstract: The invention relates to polycarbonate molding compounds consisting of halogen-free polycarbonates, graft polymers, phosphorus compounds, tetrafluoroethylene polymers and, optionally, copolymers and/or, optionally, other additives known per se and a process for their production.

Abstract: Thermoplastic molding compositions containinga. from 1 to 99 parts by weight of a thermoplastic copolymer offrom 40 to 70 parts by weight methyl methacrylate, from 20 to 50 parts by weight .alpha.-methyl styrene and from 5 to 15 parts by weight acrylonitrile,b. from 1 to 99 parts by weight of a statistical, thermoplastic copolymer offrom 70 to 95 parts by weight styrene and from 5 to 30 parts by weight maleic acid anhydride.

Abstract: Flame-resistant molding compounds of polycarbonate, polyalkylene terephthalate, graft polymer, fluorinated polyolefine and phosphorus compound can be worked up into moulded products which have a particularly advantageous combination of joint line strength, dimensional stability under heat and toughness.

Abstract: The invention relates to thermoplastic polycarbonate molding compositions containing polycarbonates, special siloxane-containing graft polymers and, optionally, lower thermoplasts and/or standard additives and to a process for the production of the polycarbonate molding compositions.

Abstract: The present invention relates to thermoplastic moulding compositions which are provided with a flame-repellent finish by adding phosph(on)ate esters, tetrafluoroethylene polymers and, if appropriate, halogen compounds.

Abstract: The invention relates to thermoplastic polycarbonate molding compositions containing polycarbonates, special siloxane-containing graft polymers and, optionally, other thermoplasts and/or standard additives and to a process for the production of the polycarbonate molding compositions.

Abstract: The invention relates to thermoplastic polycarbonate molding compositions containing polycarbonates, special siloxane-containing graft polymers and, optionally, lower thermoplasts and/or standard additives and to a process for the production of the polycarbonate molding compositions.

Abstract: The present invention relates to the use of specific graft polymers to improve the petroleum-resistance of thermoplastic, aromatic polycarbonates and/or polyester carbonates, mixtures of polycarbonate and/or polyester carbonate with these specific graft polymers and, if appropriate, with other thermoplastic resins and/or with effective amounts of customary additives, and in addition to a process for the production of these mixtures.

Abstract: The present invention relates to high impact strength flame-retardant polycarbonate moulding compositions, which are characterized in that they consist of halogen-free polydiorganosiloxane-polycarbonate block copolymers, halogen-free copolymers, halogen-free phosphorus compounds, tetrafluoroethylene polymers and, if appropriate, stabilizers, pigments, flow control agents, mould release agents and/or antistatics, and to processes for their preparation.

Abstract: The invention relates to powder compositions based on polyarylene sulphides, in particular polyphenylene sulphides (PPS) and thermoplastic vinyl polymers and to their use for the preparation of thermoplastic moulding compounds.

Abstract: The invention relates to flame-resistant mixtures of polycarbonates with graft polymers and copolymers which are characterized in that they contain modified polyalkylene ethers as antistatic agent.

Abstract: The present invention relates to thermoplastic moulding materials containing thermoplastic polycarbonates, graft polymers and two different copolymers and, if appropriate, customary amounts of fire-retarding agents, stabilizers, pigments, mould release agents and/or antistatic agents, and to a process for the preparation of these moulding materials.

Abstract: This invention relates to mixtures of polycarbonates with graft polymers and copolymers which have been rendered flame resistant and which are characterized by containing modified polyalkylene ethers as antistatic agents.

Abstract: Moulding compounds prepared from fully aromatic polyesters and grafted silicone rubber of a specified composition can be worked up into moulded bodies with excellent low temperature toughness and uniform surface.

Abstract: The present invention relates to thermoplastic moulding compositions comprising polydiorganosiloxanepolycarbonate block copolymers, copolymers of styrene and maleic anhydrides, graft polymers and, where appropriate, further customary additives and a process for preparing these moulding compositions.