摘要:
The invention relates to an unsaturated polyester resin containing a polyester or a polyester mixture, produced from at least one unsaturated dicarboxylic acid and at least one diol; and at least one silazane which is accessible for copolymerization with a C═C double bond of the dicarboxylic acid. The invention also relates to an unsaturated polyester resin moulding material which can be obtained or is obtained by cross-linking an unsaturated polyester resin as defined above. Said moulding material can optionally contain reinforcing materials. Said unsaturated polyester resin can be produced using the following steps: (a) a polyester from at least one diol and at least one unsaturated dicarboxylic acid is provided; (b) at least one silazane which is accessible for copolymerization which a C═C double bond of the dicarboxylic acid is provided; (c) the components are mixed according to (a) and (b). The unsaturated polyester resin moulding material can be produced from the above-mentioned polyester resin by hardening thereof by means of a radical initiator.
摘要:
This invention refers to hybrid pre-polymers and polymers, produced through conversion from difunctional, oligofunctional and/or polyfunctional cyanates and/or from their pre-polymers with monomeric, oligomeric and/or polymeric silazanes. The polymers are duromers with high glass transition temperature and fracture toughness, compared to duromers from the respective cyanate source material. In their pre-polymerized state, they can be dissolved in solvents and are therefore suitable as impregnating resins for prepregs. In addition, they can be processed to become moldings. Their burning properties are described as particularly outstanding.
摘要:
Apparatus includes: a housing, the housing having an aperture; a shaft; and plural blood sample collection members supported on the shaft. The apparatus is constructed such that different ones of the plural blood sample collection members are able to be presented at the aperture in turn. Each of the blood sample collection members may be independently rotatable about the shaft.
摘要:
The invention relates to an intermediate element for the arrangement of a probe pin with respect to the probe pin carrier of a coordinate measuring machine, having a single-piece base body with a probe pin end and a machine end. It is provided here that the machine end is provided with a coupling element and with a means for ensuring a reproducible rotational alignment, and the probe pin end has a bearing face which is inclined in a fixed manner with respect to the axis of the coupling element, is provided on a general ball segment form which is flattened by the bearing face, and is configured with a positively locking means and/or frictional means for the positively locking and/or frictional engagement with a fastening end of the probe pin in contact with the bearing face.
摘要:
A metering device is used for the metered administration of a flowable preparation together with a flowable carrier medium. A storage container for the preparation has at least one access opening. A metering plunger body can be moved in a sealed manner in the storage container between a starting position and at least one metering position. The metering plunger body is hollow. A metering sleeve has on a bottom side an eccentric metering sleeve opening. An inner plunger body has on the bottom side an eccentrically arranged plunger body opening. In a through relative rotation position of the metering sleeve relative to the inner plunger body a passage is provided between the inside of the storage container and the inside of the inner plunger body. In a closed relative rotational position this passage is closed. This results in a user-friendly and compact metering device.
摘要:
Apparatus for eliciting a blood sample comprises: a housing; a shaft mounted within the housing; an aperture in the housing, the aperture being configured to receive a part of a user; a member rotatably mounted on the shaft; a lancet protruding from one position at an edge of the member, and a blood collection part located at a second, different position at the edge of the member. The apparatus is configured such that: when the member is in a first rotational position the lancet is shielded by the housing, when the member is in a second rotational position the lancet is operable to lance the part of the user received at the aperture, and when the member is in a third rotational position the blood collection part is presented such as to receive blood from the part of the user received at the aperture.
摘要:
Apparatus for allowing measurements to be made of a blood sample comprises a shaft and at least first and second blood collection members. The blood collection members are independently rotatable about the shaft. Each blood collection member includes: a blood analysis part for receiving a blood sample, plural conductive contacts, and plural conductors extending between the blood analysis part and respective ones of the conductive contacts. The apparatus also includes plural terminals configured to provide an electrical connection with the plural conductive contacts on a first member when the apparatus is in a first configuration and to provide an electrical connection with the plural conductive contacts on a second member when the apparatus is in a second configuration, thereby allowing successive measurements of at least one parameter of blood samples provided on the blood analysis parts of the first and second members.
摘要:
Apparatus for eliciting a blood sample comprises: a member rotatably mounted on a shaft and configured to rotate between a first position and a second position; and a curved lancet protruding from the member and configured to co-rotate with the member such as to provide skin penetration by the lancet when the member is in the second position. At least 1 mm of the end portion of the curved lancet is coincident with a line that is concentric with respect to the shaft.
摘要:
An arrangement for mounting and fixing a planetary gear system (3) onto a camshaft (2). The planetary gear system comprises a planetary carrier (5) that forms the drive input of the camshaft (2), with planetary gears (7) mounted on planetary bolts (6). A ring gear (10) is rotationally fixedly connected to the camshaft (2), and a sun gear (8) is connected with a sun shaft (9). The ring gear (10) is arranged at the end of and coaxially with the camshaft (2) and is rotationally fixedly connected to the camshaft (2) by eccentrically arranged fixing elements (4).
摘要:
The invention relates to a new industrial process for producing low-monomer-content organic polyisocyanates by oligomerization of organic diisocyanates in a two-phase system.