摘要:
The invention relates to matted UV varnishes comprising silicon dioxide, the surface thereof having been modified by means of treatment with a multiple bond organopolysiloxane so as to be particularly well-suited for use as a matting material for UV varnishes, and to a method for producing same.
摘要:
Precipitated silicas with a high pH and their use in applications as defoamers having optimum silanol group density and a process for preparing precipitated silicas and to their use, particularly in defoamer formulations.
摘要:
A precipitated silica having a d50-value of from 150 to 2000 nm, a d90-value of from 500 to 7000 nm, a silanol group density of from 2.5 to 8 OH/nm2, and a modified tapped density of less than or equal to 70 g/l is useful for thickening and providing thixotropy in liquid systems and shows superior efficiency at thickening and creating thixotropy compared to existing grades of precipitated silica. The precipitated silica functions best as a thixotrope in non-polar or intermediate polar liquid systems such as unsaturated polyester (UPE) resin systems.
摘要:
Precipitated silicas having an SiOHisolated absorbance ratio of greater than or equal to 1, may be used as reinforcers and thickeners for sealants.
摘要:
The present invention minimizes the amount of traffic that traverses the fabric in support of the cache coherency protocol. It also allows rapid transmission of all traffic associated with the cache coherency protocol, so as to minimize latency and maximize performance. A fabric is used to interconnect a number of processing units together. The switches are able to recognize incoming traffic related to the cache coherency protocol and then move these messages to the head of that switch's output queue to insure fast transmission. Also, the traffic related to the cache coherency protocol can interrupt an outgoing message, further reducing latency. The switch incorporates a memory element, dedicated to the cache coherency protocol, which tracks the contents of all of the caches of all of the processors connected to the fabric. In this way, the fabric can selectively transmit traffic only to the processors where it is relevant.
摘要:
A dragchain substitute in the form of a line guiding assembly comprising at least one line receiving channel for receiving at least one line loosely disposed therein. At least one of the channel walls of each line receiving channel is designed in projecting manner and resilient towards the channel interior relative to a channel wall supporting it, such that the line can be urged from outside of the line receiving channel through the resilient channel wall and into the interior of the line receiving channel and is enclosed in the line receiving channel after said resilient channel wall has resiled.
摘要:
A line guiding assembly is provided comprising a line assembly including one or more lines and having a first length and a second length extending parallel thereto. The length ends are connected to a stationary element and to a reciprocable element in the line longitudinal direction, respectively. The two lengths merge with each other in loop-shaped manner in a bending portion located therebetween. The line assembly, at least in the portion in which the two lengths are facing each other, is provided with a material having good slidability for sliding on each other. A roller is introduced in the bending portion in such a manner that, upon movement of the reciprocable element, the line assembly performs a rolling motion on the roller.
摘要:
A precipitated silica having an SiOHisolated absorbance ratio of greater than or equal to 1.5, a silanol group density of 1 to 3.0 SiOH/nm2, a modified tapped density of 1 to 50 g/l, and a pH of 3-5, when measured as a aqueous suspension of 5.00 g of the precipitated silica in 100 ml. of deionized water allows preparation of storage-stable RTV-1 silicone rubber formulations without stabilizer. A process for preparing the precipitated silica and its use in thickening sealants is provided.
摘要:
The present invention provides a process for generating fine particles in a jet mill which operates at a pressure of a milling gas of less than or equal to 4 bar in abs value and a temperature of the mill of less than 100° C., a process for simultaneous milling and surface modifications of the fine particles, a jet mill for operating the process and products obtained by the process.
摘要:
Hydrophilic precipitated silicas which combine a particularly low initial moisture content with low moisture absorption over time, a low tapped density and a low silanol group density, have the following physicochemical parameters: equilibrium moisture content (at 70% relative humidity/20° C.) of 0.5%-5.0% by weight, based on the weight of the hydrophilic precipitated silica, BET surface area of 50-250 m2/g, CTAB surface area of 50-250 m2/g, and DBP (anhydrous) of 200-350 g/100 g.