摘要:
The invention provides a room temperature-curable organopolysiloxane composition curable into a rubbery elastomer, which has excellent storage stability under a moisture-free condition without losing high curability. The composition comprises, in addition to the conventional essential ingredients of a hydroxy- or alkoxy-terminated diorganopolysiloxane, filler, triisopropenyloxy silane compound as a crosslinking agent and a guanidino-containing organosilicon compound as a curing aid, an amino-containing silane compound such as MeSi[NH--C.sub.3 H.sub.6 --Si(OEt).sub.3 ].sub.3 and MeSi[NH--C.sub.2 H.sub.4 NHC.sub.3 H.sub.6 --Si(OMe).sub.3 ].sub.3.
摘要翻译:本发明提供可固化到橡胶弹性体中的室温可固化的有机基聚硅氧烷组合物,其在无湿度条件下具有优异的储存稳定性,而不损失高固化性。 除了作为交联剂的填充剂,作为交联剂的三异丙烯基氧基硅烷化合物和作为固化助剂的含胍基的有机硅化合物的常规必需成分之外,还包含含氨基的硅烷化合物,例如 MeSi [NH-C3H6-Si(OEt)3] 3和MeSi [NH-C2H4NHC3H6-Si(OMe)3] 3。
摘要:
The room temperature-curable organopolysiloxane composition of the invention capable of giving a cured rubber can be used advantageously as an insulating material in electric and electronic instruments without causing troubles in contact points which is unavoidable with conventional compositions. The inventive composition is formulated with (a) a diorganopolysiloxane terminated at the molecule molecular chain ends each with a silanolic hydroxy group, (b) an alkenyloxy, e.g. isopropenyloxy, containing silane and (c) a guanidino-substituted organosilicon compound and these components are specified either by the upper limit of the content of low molecular constituents having a specified vapor pressure or higher or the upper limit of the vapor pressure of the compound per se so that the electric contact points near the insulation with the composition are free from exposure to the vapor of organosilicon compounds which may be deposited as an oxide of silicon by sparks.
摘要:
The silicone rubber composition of the invention essentially comprises (a) a silanolic hydroxy-terminated diorganopolysiloxane, (b) a hydrolyzable vinyl silane compound such as a vinyl trialkoxysilane and (c) an organopolysiloxane having at least two mercapto groups in the form of, for example, 3-mercaptopropyl groups, in a molecule. The composition can be cured by two different mechanisms of crosslink formation one by the condensation reaction between the silanol groups in (a) and the hydrolyzable groups in (b) in the presence of atmospheric moisture and the other between the vinyl groups in (b) and mercapto groups in (c) under irradiation with ultraviolet light. The two-way cruability of the composition greatly expands the application fields of the silicone rubber composition.
摘要:
The invention provides a novel diorganopolysiloxane compound composed of dimethysiloxane units, methyl (2-perfluoroalkylethyl)siloxane units and methyl acyloxyalkylsiloxane units. The novel diorganopolysiloxane compounds of the invention have excellent lubricating properties so that they are useful as an additive ingredient in various materials such as coating compositions, magnetic layer of recording tapes and the like where lubricity or mold releasability is essential.
摘要:
The invention relates to an apparatus for incising on a film to be processed the precise contour of a required photographic image so as to obtain a process block for prints in which such photographic image is to be inserted. The apparatus comprises a data input unit capable of detecting the precise contour by causing a light pen to trace the general contour of a required image on a photocopy; an output unit capable of incising the contour on a film to be processed by receiving signals of the positions of the precise contour detected by the input unit; and a control unit capable of performing a control operation, such as relay, comparison, etc. of the signals between the input unit and the output unit.
摘要:
Printing ink compositions which are suitable for use in the method of dry-planographic printing on a high-speed web offset press are provided wherein an ink vehicle comprises from 1 to 70% by weight of a silicone-modified phenolic resin prepared by reacting an oil-soluble solid phenolic resin with an amino group-containing organopolysiloxane. Said ink compositions are capable of producing copy sheets without the occurrence of scumming and the piling of ink throughout a long continuous operation by the said printing method.
摘要:
Novel organosilicon compounds having in a molecule at least one maleimido group bonded to a silicon atom through a Si-C linkage, synthesized by reaction of a derivative of maleic anhydride with an organosilicon compound having an amino-substituted hydrocarbon group bonded to the silicon atom. The reaction proceeds in two steps, the first step being addition of the amino group to the maleic anhydride derivative to form an amide structure and the second step being dehydration of the amide structure to form a maleimido ring. The organosilicon compounds having remarkable photosensitivity can be polymerized and cured on exposure to ultraviolet light, and the cured films are insoluble in organic solvents.
摘要:
A power domain is automatically generated.A computer performs a function simulation process 9 for evaluating whether or not a designed circuit satisfies a specification, and a clustering process 10 which obtains a power domain by clustering logical blocks in which activation timings are within a range, based on the result of the function simulation process. Since the power domain is obtained by a process performed by the computer, the power domain can be optimized compared to a case when it is obtained by hand (manual work of the designer).
摘要:
A computer-readable recording medium stores a design support program causing a computer to perform: detecting a data path and a clock path corresponding to the data path making up a partial circuit in a circuit-under-design; selecting an object cell from cells on the data path and the clock path detected in the detecting; replacing the object cell selected in the selecting with a cell having a function substantially identical to and characteristics different from the object cell; acquiring a plurality of types of characteristic information related to the partial circuit based on the data path and the clock path after the object cell is replaced in the replacing; determining whether the types of the characteristic information acquired in the acquiring is in violation of restrictions; and outputting a determination result determined in the determining.
摘要:
A semiconductor device 2 has a plurality of elements. It also has an F-V table storing unit for low voltage threshold cells 31 for storing an F-V table TB11 of an oscillation frequency f1 relying on the plurality of elements and a power supply voltage EV to be supplied to the plurality of elements. It has a process sensor block 12 having at least one of the plurality of elements, for monitoring the oscillation frequency f1 relying on at least one element. It further has a selector 33 for setting the power supply voltage EV associated with the oscillation frequency f1, as the supply voltage to be supplied to the semiconductor device 2 by selecting according to the F-V table TB11. The F-V table TB11 is obtained by mutually relating the combinations of random number models ξn between an F-ξ table TB20 and an ξ-V table TB30.