摘要:
A fluorine-containing organosilicon compound according to the present invention is expressed by the general formula: ##STR1## wherein Rf is a perfluoropolyether group having 3 to 17 carbon atoms, R is an alkylene group having 1 to 6 carbon atoms or an ether group expressed by the general formula:--R.sup.1 --O--R.sup.2 --wherein R.sup.1 and R.sup.2 may be the same or different and are each alkylene groups having 1 to 6 carbon atoms. The fluorine-containing organosilicon compound is highly useful as a curing agent for organopolysiloxane compositions that are condensation curable at room temperature.
摘要:
Fluorine-containing organosilicon compound according to the present invention is expressed by the general formula: ##STR1## wherein Rf is a perfluoropolyether group having 3 to 17 carbon atoms, R is an alkylene group having 1 to 6 carbon atoms or a group of the general formula, --R.sup.2 --O--R.sup.3 --, wherein R.sup.2 and R.sup.3 may be the same or different and are each alkylene groups having 1 to 6 carbon atoms. The present compound is useful as a curing catalyst for organo-polysiloxane compounds that are condensation curable at room temperature. The compositions added with the fluorine-containing organosilicon compound have excellent characteristics such as water and oil repellencies, chemical resistance and contamination resistance and offer a variety of uses such as high performance sealing, coating and electric insulating materials.
摘要:
The synthesis and use of a fluorine-containing organic silicon compound represented by: ##STR1## wherein each R.sup.1 independently represents a monovalent hydrocarbon group of 1-10 carbon atoms, and each R.sup.2 independently represents a monovalent hydrocarbon group of 1-10 carbon atoms or a CH.sub.2 CH.sub.2 Rf group, such that at least one R.sup.2 is CH.sub.2 CH.sub.2 Rf, wherein Rf is a perfluoroalkyl group of 1-10 carbon atoms; the compounds of formula (I) are useful in the preparation of fluorine-containing polysilethylenesiloxanes having excellent solvent-resisting and surface-lubricating properties.
摘要:
An organopolysiloxane composition comprising (A) a linear, alkenyl-containing, fluorinated organopolysiloxane, (B) a cyclic fluorinated organosiloxane as a tackifier, (C) an organohydrogenpolysiloxane having at least two hydrogen atoms attached to a silicon atom in a molecule, and (D) a platinum group metal catalyst has excellent properties inherent to fluorinated silicone rubber, and cures into products having adhesion and close contact to various materials including metals, glass and resins.
摘要:
A curable silicone composition comprising:(A) an alkenyl group-containing organopolysiloxane containing silicon-bonded alkenyl groups and a silicon-bonded fluorine-containing substituent having the general formula (1):Rf--O--Y-- (1) wherein Rf is a perfluoroalkenyl group having 5 to 10 carbon atoms, and Y represents a divalent organic group,(B) an organohydrogenpolysiloxane, and(C) a catalyst for addition reaction between components (A) and (B). This composition can form a cured coating which adheres firmly to various substrates and has good release properties, stability in the release properties, water- and oil-repellency, and solvent resistance. The coating exhibits good release properties even against pressure sensitive adhesives comprising a dimetylpolysiloxane.
摘要:
A fluorine containing organosilicon compound represented by the following general formula: ##STR1## wherein R represents an alkyl group or an aryl group, a is an integer of 1 to 7, b is an integer of 2 to 8, and c is an integer of 1 to 3. This compound is useful as a surface treating agent for silicas, an adhesive improver for resists, an oil or water-repellent treating agent, and a raw material for synthesis of various silicone compounds.
摘要:
Provided is a receiving circuit that operates in a power supply system different from a transmitting circuit outputting a transmission signal and receives the transmission signal through an AC coupling device where a primary coil through which the transmission signal flows and a secondary coil having a center tap to which a specified voltage is supplied from an external terminal are magnetically coupled, which includes a pulse width amplifier circuit that holds pulse signals appearing at both ends of the secondary coil for a specified period of time and outputs them as hold signals, respectively, and a differential amplifier that compares a voltage of the hold signal and a voltage of the hold signal and outputs a comparison result.
摘要:
Function distinguishing marks are efficiently displayed which correspond to a plurality of functions assigned to a single operation key, respectively.A mobile phone (1) changes in accordance with the number of functions assigned to a single operation key the number of the function distinguishing marks to be displayed which indicate functions.
摘要:
The present invention relates to a resin composition for GHz-band electronic components, the composition comprising nanoscale carbon tubes and at least one member selected from the group consisting of thermoplastic resins, curable resins, and composite resins of thermoplastic resins and curable resins; wherein the nanoscale carbon tubes are present in an amount of 0.0001 to 0.4 wt. % based on the resin; and an electronic component obtainable from the resin composition, or the like.
摘要:
A partial response transmission system in which a data signal is transmitted from a transmission side to a reception side through a transmission medium, includes an equalizing circuit provided in the transmission side or the reception side, and configured to adjust a transfer function for an entire system including the transmission medium to a desired transfer function by delaying input data over a plurality of states in units of a period equal to a transition time of a single bit response by the desired transfer function of a partial response transmission and by weighing and adding data in the plurality of stages; and a deciding circuit provided in the reception side and configured to decide an output data from a signal received through the transmission medium through processing under consideration of the desired transfer function.