摘要:
A dental cement composition comprising (i) a particulate reactive inorganic filler capable of leaching metal ions in the presence of an acid, and (ii) composite particles with grafted polyacidic polymer chains, which are obtainable by a process comprising the following steps: (a) polymerizing one or more free radically polymerizable monomers containing optionally protected acidic groups in the presence of (a1) an initiatior system comprising initiator particles displaying a moiety comprising a radically transferable atom or group as a polymerization initiation site; and (a2) a catalyst facilitating controlled/living polymerisation, and (a3) optionally further polymerizable monomers, for forming a composite particle with grafted optionally protected polyacidic polymer chains; and (b) optionally deprotecting protected acidic groups, for forming composite particles with grafted polyacidic polymer chains.
摘要:
This semiconductor device has two leads (3) lying in the same axis, a prefabricated plastic can (1) which is filled with a plastic compound and has one of the leads passed through its bottom (1a), and a prefabricated die (4) attached between those sides of the inner ends (60, 70) of the leads (3) facing each other, the leads being inserted into, and having an offset within, the can. The manufacture of the leads starts with a wire (30) which unwinds from a spool (39), passes through a major part of the manufacturing stages unseparated, and is separated into the individual semiconductor devices only after the mounting of the cans (1).
摘要:
A part normally retained in a predetermined position is operated by a pyrotechnic actuator having a housing formed unitarily with a pivot, formed unitarily with mounts for securing the housing to a motor vehicle, and forming a chamber extending along an axis. A latch element is mounted on the pivot and movable thereon between a holding position retaining the part in the predetermined position and a releasing position allowing the part to move out of the predetermined position. A piston having a stem engageable with the latch element is movable axially in the chamber between an inner position with the latch element in the holding position and an outer position with the latch element in the releasing position. A pyrotechnic charge in the chamber is detonatable to shift the piston into the outer position and thereby shift the latch element into the releasing position.
摘要:
This semiconductor device has two leads (3) lying in the same axis, a prefabricated plastic can (1) which is filled with a plastic compound and has one of the leads passed through its bottom (1a), and a prefabricated die (4) attached between those sides of the inner ends (60, 70) of the leads (3) facing each other, the leads being inserted into, and having an offset within, the can.In the manufacturing method the manufacture of the leads starts with a wire (30) which unwinds from a spool (39), passes through a major part of the manufacturing stages unseparated, and is separated into the individual semiconductor devices only after the mounting of the cans (1).
摘要:
An electrical switch device including a housing having an actuator cap movably mounted thereon and a plurality of contact switches disposed therein. The cap is operable to engage the contact switches within the housing to activate the switches in a selected sequence.
摘要:
In a method for operating an electronic anti-theft system, data communication is effected between the control device and the key further to an access authorization request, whereby the control device unlocks the doors and deactivates an alarm system as a function of the data communication. The data communication for unlocking the doors and the data communication for disarming the alarm system are separate from each other. In this way, the mechanical unlocking of the doors can be initiated immediately after the data communication for unlocking the doors. The corresponding data communication for deactivating the alarm system is effected in parallel with this, whereby extensive cryptological data is exchanged between the control device and the key.
摘要:
An apparatus for manufacturing a semiconductor device having two leads (3) lying in the same axis, a prefabricated plastic can (1) which is filled with a plastic compound and having one of the leads passed through its bottom (1a), and a prefabricated die (4) attached between the sides of the inner ends (60, 70) of the leads (3) facing each other, the leads being inserted into, and having an offset within, the can. The manufacture of the leads starts with a wire (30) which unwinds from a spool (39), passes through a major part of the manufacturing stages unseparated, and is separated into the individual semiconductor devices only after the mounting of the cans (1).