摘要:
The present invention relates to a method of regenerating a ruthenium catalyst suitable for hydrogenation, which comprises flushing the catalyst with inert gas in a regeneration step until the original activity or part of the original activity has been attained. The method is particularly useful for ruthenium catalysts which are used for the hydrogenation of aromatics.
摘要:
A covering system includes a flexible, web-like membrane having first and second portions. A first cross support is connected to the first portion of the membrane, and a second cross support is connected to the second portion of the membrane. A drive mechanism is provided for moving the second cross support relative to the first cross support so that the membrane is movable between a first, retracted position and a second, deployed position. The drive mechanism includes a force multiplication mechanism for facilitating a longitudinal tensile stress application to the membrane when it is in the second, deployed position. A transverse tensioning mechanism that includes a catenary linkage is also provided for tensioning the membrane in a direction that is transverse to the longitudinal direction.
摘要:
A tube unit for the enteral feeding of a patient, with a tube segment that extends along at least a segment of the axial direction (S) and a retention device on the distal end of the tube segment, which extends in at least one direction radially to axial direction (S) beyond the distal end of the tube segment in an extended position and which has a smaller diameter in an elongated position, in which the retention device is elongated along axial direction (S). The retention device moves from an extended position into the elongated position is supported by a control device.
摘要:
An apparatus for combining under sterile conditions a liquid component held in a first container and a solid or liquid component held in a second container is provided. In one embodiment, two hollow bodies for receiving the two containers are provided, the two hollow bodies being arranged one within the other and being slidable relative to one another in a guided manner in the longitudinal direction. A cannula holder forms a pot-shaped structural unit with the first hollow body. Alternatively, the cannula holder is provided with at least one cannula. The cannula holder and the first hollow body may be separate components, in which the cannula holder is pot-shaped.
摘要:
A mixture of platelet-shaped, copper-containing metallic effect pigments having a copper content of 60% to 100% by weight, based on the total metal content, with at least one further component, where the copper-containing metallic effect pigments have a thickness distribution, determined via thickness counting by scanning electron microscopy (SEM) and represented as cumulative undersize distribution, a) with an h50 of 10 to 100 nm, and b) with an h90 of 20 to 150 nm, and in that the at least one further component is a cellulose derivative selected from the group consisting of alkylcellulose, hydroxyalkylcellulose, alkyl(hydroxyalkyl)cellulose, and mixtures thereof, and/or is at least one additive having antioxidative and/or radical-inhibiting properties. The disclosure further relates to a method for producing this mixture, and to a coating composition.
摘要:
Platelet-shaped, copper-containing, metallic effect pigments which have a copper content of 60% to 100% by weight, based on the total metal content, the metal pigments having a thickness distribution as determined via thickness counting by scanning electron microscopy (SEM) and represented as cumulative undersize distribution, a) with an h50 of 10 to 50 nm, and b) with an h90 of 20 to 70 nm, the platelet-shaped, copper-containing, metallic effect pigments being produced by milling a copper-containing metal powder with lubricant. The disclosure further relates to a process for producing these pigments, and also to their use, to a printing ink comprising the pigments of the invention, and to a coated article comprising these pigments.
摘要:
The invention relates to an insulating device containing a first machine element, in particular an exhaust gas pipe, and at least one second machine element, in particular an exhaust manifold, that is connected to said first machine element and through which, in particular, a hot medium can flow and being connected to a unit. The insulating device at least partially surrounds the machine element and is connected to the unit. The aim of the invention is to further develop the claimed insulating device with a low amount of production and material expenditure such that mounting and demounting can be carried out in a simple manner and can be adapted in a problem-free manner to various types of units. According to the invention, a base plate that is connected to the unit is provided, said base plate having at least two side parts that are arranged at a distance from each other forming an intermediate area, such that a sliding part is arranged in the intermediate area and is essentially sealingly connected the base plate and to the lateral parts by profiles and is detachably connected in relation to the base plate, such that said sliding part contains a recess through which the second machine element is guided, and also a cover that can be connected to the base plate by a detachable securing element, said cover engaging with the first machine element. The cover rests upon the lower edges thereof on associated areas of the lateral parts of the base plate and/or the sliding part(s).
摘要:
The present invention relates to a connection piece for an enteral transfer system and to an enteral transfer system with such a connection piece, and also to an arrangement composed of such a transfer system and of an enteral feed probe. The connection piece according to the present invention comprises a distal attachment piece for attachment of a connection piece of a probe tube of an enteral feed probe, and a proximal attachment piece for attachment of the connection tube of a transfer system. The distal attachment piece of the connection piece is conical or is designed in stepped fashion with several portions of different diameter. The distal attachment piece can therefore be releasably connected to the funnel-shaped connection pieces of different diameter of the probe tubes of the known feed probes. The connection piece according to the present invention can be used universally in this respect. The distal attachment piece of the connection piece according to the present invention has a locking element which is designed in such a way that a releasable form-fit connection can be made to a connection piece of a probe tube of an enteral feed probe that has a locking element complementing the locking element of the distal attachment piece.
摘要:
Composition comprising a hydrogenated bisglycidyl ether and a crosslinker, wherein the hydrogenated bisglycidyl ether has the formula I where R is CH3 or H, and is obtained by hydrogenation of the aromatic rings of a corresponding bisglycidyl ether of the formula II where the degree of hydrogenation is >98%, and the crosslinker has no aromatic structural elements.Process for preparing a crosslinked epoxy resin, in which the abovementioned composition is used.Crosslinked epoxy resins which can be prepared by the abovementioned process, and their uses.
摘要:
Heterogeneous ruthenium catalyst comprising silicon dioxide as support material, wherein the catalyst surface comprises alkaline earth metal ions (M2+), process for hydrogenating a carbocyclic aromatic group to form the corresponding carbocyclic aliphatic group, in particular a process for preparing bisglycidyl ethers of the formula I where R is CH3 or H, by ring hydrogenation of the corresponding aromatic bisglycidyl ether of the formula II in which the abovementioned heterogeneous ruthenium catalyst is used, and bisglycidyl ethers of the formula I which can be prepared by the abovementioned process.