Abstract: A room-temperature-curable organopolysiloxane composition for an oil seal, wherein an organosilane compound containing a specific organo-oxymethyl group and represented by formula (1) below and/or a partial hydrolysis condensate of said compound is used as a curing agent (crosslinking agent), and an organic compound having a guanidine skeleton is added in combination as a curing catalyst. In the formula, each R1 is independently a C1-12 unsubstituted or substituted monovalent hydrocarbon group, R2 is a C1-12 unsubstituted or substituted monovalent hydrocarbon group, Y is a hydrolyzable group, and n is 0, 1 or 2.

Abstract: An organosilicon compound represented by formula (1). (R1 is an alkyl, alkenyl, aryl, or acyl group, R2 is an alkyl or aryl group, R3 is a hydrogen atom or a methyl group, A1 is a single bond or an alkylene group, A2, A3, and A4 are each a methylene group or an oxygen atom, with the proviso that at least one of the A2, A3, and A4 moieties is an oxygen atom, and n is an integer of 1-3.

Abstract: This bile acid adsorbing agent composed of silica particles, to which an organosilicon compound represented by general formula (1) is bonded, has the advantage that water-absorption swelling does not occur. (In formula (1), R1, R2, and R3 each independently represent a hydrogen atom, a C1-C20 alkyl group, a vinyl group, a phenyl group, or a benzyl group, and R4 represents a group represented by general formula (2), provided that R1 and R3 may be bonded to each other to form a benzene ring.) (In formula (2), A represents a linear or branched divalent linking group which may contain a heteroatom, a urethane bond, a urea bond, a thiourethane bond, and/or a thiourea bond, R5,s each independently represent a C1-C10 alkyl group or a C6-C10 aryl group, R6,s each independently represent a C1-C10 alkyl group or a C6-C10 aryl group, and n represents an integer of 1-3.

Abstract: A room-temperature-curable organopolysiloxane composition comprising (A) an organopolysiloxane resin which contains silanol groups in a specified amount and has a specified molecular weight and a specified three-dimensional net-like structure, (B) a hydrolyzable organosilane compound containing an organooxymethyl group and/or a partial hydrolysis-condensation product thereof, (C) a linear diorganopolysiloxane of which each molecule chain terminal is capped with a silanol group, and (D) a hydrolyzable to organosilane containing an amino group and/or a partial hydrolysis-condensation product thereof at specified content ratios can be produced easily and at low cost, and can be formed into a high-hardness cured article or coating film even when a metal compound that can serve as a condensation catalyst is not contained.

Abstract: An organic silicon compound having a ketimine structure can be recovered at a high yield through a method for producing an organic silicon compound having a ketimine structure represented by formula (1), the method having a step for reacting an amino-group-containing organic silicon compound represented by formula (2) and a carbonyl compound represented by formula (3) in the presence of an inorganic adsorbent. (In the formulas, R1 each independently represent a C1-10 alkyl group or a C6-10 aryl group, R2 each independently represent a C1-10 alkyl group or a C6-10 aryl group, R3 and R4 each independently represent a hydrogen atom, a C1-10 alkyl group, or a C6-10 aryl group, n represents an integer of 1-3, and m represents an integer of 1-12.) (In the formulas, R1-R4, n, and m are the same as above.

Abstract: A method for producing an organosilicon compound having the formula (1) and having a ketimine structure, the method including reacting an amino group-containing organosilicon compound having the formula (2) and having a chlorine atom content of less than 0.1 ppm by weight with a carbonyl compound having the formula (3). R1 independently represents an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 10 carbon atoms, R2 independently represents an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 10 carbon atoms, R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms, n represents an integer of 1 to 3, and m represents an integer of 1 to 12. R1, R2, R3, R4, n, and m are as described above.

Abstract: This organopolysiloxane having a structural unit represented by general formula (1): (in the formula, R1 represents an unsubstituted or substituted alkyl group having 1-12 carbon atoms or an unsubstituted or substituted aryl group having 6-10 carbon atoms) and having at least one group that directly binds to a silicon atom and that is selected from the groups represented by general formula (2); R2O—??(2) (in the formula, R2 represents a hydrogen atom, an unsubstituted or substituted alkyl group having 1-10 carbon atoms, or an unsubstituted or substituted aryl group having 6-10 carbon atoms), is capable of achieving both hardness and bending resistance, exhibits excellent fast curing ability even when an amine-based compound is used as a curing catalyst, and is highly safe.

Abstract: An adhesive composition containing an organic silicon compound represented by formula (1). [In the formula, R1 is an alkyl group or an aryl group, R2 are an alkyl group or an aryl group. R3 are an alkyl group, an aryl group, an aralkyl group, an alkenyl group, or an alkoxy group, but at least one is an alkoxy group. R4 is an alkyl group, an aryl group, an aralkyl group, or an organic group represented by formula (2), n is an integer of 1-3, m is an integer of 1-12. (In the formula, R5 is an alkyl group or an aryl group, R6 are an alkyl group or an aryl group, p is an integer of 0-12, q is an integer of 1-3. The broken line represents a bond.

Abstract: Disclosed is an organopolysiloxane having a constituent unit represented by a general formula (1), a constituent unit represented by a general formula (2), and a group represented by a general formula (3) that is directly bonded to a silicon atom. R1 represents an alkyl group or an aryl group. R2 each independently represents an alkyl group or an aryl group, n is each independently 2 or 3, and m is an integer of 5 to 100. R3O—??(3) R3 represents a hydrogen atom, an alkyl group, or an aryl group.

Abstract: A mixture of an organosilicon compound represented by average structural formula (2), wherein the area percentage occupied by an organic compound represented by structural formula (1) in GPC is from 5% to 95%, provides a rubber composition which exhibits excellent dispersibility of an inorganic filler and enables the achievement of a crosslinked cured product that has improved wear resistance, rolling resistance and wet grip performance. This rubber composition enables the achievement of a desired low fuel consumption tire. (R1O)3-p(R2O)pSi—(CH2)j—Sy—(CH2)k—Si(OR2)q(OR)3-q??(2): (In the formula, R1 represents an alkyl group having from 1 to 3 carbon atoms; R2 represents an alkyl group having from 4 to 8 carbon atoms; p represents a number from 0 to 3; q represents a number from 0 to 3; j represents a number from 1 to 10; k represents a number from 1 to 10; and y represents a number from 2 to 8.

Abstract: A room-temperature-curable organopolysiloxane composition for an oil seal, wherein an organosilane compound containing a specific organo-oxymethyl group and represented by formula (1) and/or a partial hydrolysis condensate of said compound is used as a curing agent (crosslinking agent), and an organic compound having a guanidine skeleton is added in combination as a curing catalyst. (In the formula, each R1 is independently a C1-12 unsubstituted or substituted monovalent hydrocarbon group, R2 is a C1-12 unsubstituted or substituted monovalent hydrocarbon group, Y is a hydrolyzable group, and n is 0, 1 or 2.) It is thus possible to obtain a cured product having good rubber properties, adhesiveness, and engine oil resistance after curing even without containing a metal-based catalyst.

Abstract: An organic silicon compound having a ketimine structure having good storage stability can be obtained by a production method that produces an organic silicon compound having a ketimine structure indicated by formula (1) (R1 and R2 each independently indicating a C1-10 alkyl group or a C6-10 aryl group, R3 and R4 each independently indicating a hydrogen atom, a C1-10 alkyl group, or a C6-10 aryl group, n indicating an integer of 1-3, and m indicating an integer of 1-12). The production method includes a step (I) and a step (II) and has a chlorine atom content relative to the organic silicon compound indicated by formula (1) of less than 0.1 mass ppm. Step (I): A step in which an amino group-containing silicon compound indicated by formula (2) and a carbonyl compound indicated by formula (3) are caused to react. (R1-R4, n, and m are as described above.) Step (II): A step in which the chlorine atom content is reduced.

Abstract: A power generation system according to the present invention includes: a fuel cell unit including a fuel cell, a hydrogen generator having a first combustor, and a case; a controller; a combustion unit including a second combustor; and a discharge passage formed to cause the case and the combustion unit to communicate with each other. In a case where the controller causes one of the first combustor and the second combustor to perform the ignition operation, the controller maintains an operating state of the other combustor during the period of the ignition operation of the one combustor.

Abstract: Provided are a fuel cell system capable of shortening the wait time of an observer who confirms set points of a system interconnection protective device before starting a system interconnection operation, and a method for operating the fuel cell system.

Abstract: A power generation system of the present invention includes: a fuel cell unit (101) including a fuel cell (11) and a case (12); a controller (102); a combustion unit (103) provided outside the case (12) and configured to combust a combustible gas to supply heat; and a discharge passage (70) configured to cause the fuel cell unit (101) and the combustion unit (103) to communicate with each other, wherein in a case where an exhaust gas is being discharged to the discharge passage (70) from one of the fuel cell unit (101) and the combustion unit (103) and the controller (102) changes the flow rate of the exhaust gas discharged from the other unit, the controller (102) controls at least the flow rate of the exhaust gas discharged from the other unit such that the flow rate of the exhaust gas discharged from the one unit becomes constant.

Abstract: A power generation system has a power generation unit (1), a casing (2) accommodating the power generation unit (1), a ventilator (3) configured to ventilate the interior of the casing (2), and a first exhaust gas passage (4) configured to pass therethrough an exhaust gas from the ventilator (3) which is discharged out of the casing (2). The first exhaust gas passage (4) merges with a second exhaust gas passage (6) connected to a duct (11) open to outside air before the second exhaust gas passage (6) is connected to the duct (11), the second exhaust gas passage (6) being configured to pass a combustion exhaust gas from a combustion device (5) configured to generate heat to be supplied to a heat load.

Abstract: A power generation system of the present invention comprises: a power generation unit (1); a casing (2) that accommodates the power generation unit (1); a ventilator (3) that ventilates the interior of the casing (2); a first gas flow passage (5), arranged inside the casing (2), for a flow therethrough of gas which flows as the ventilator (3) operates; and a second gas flow passage (6), arranged inside the casing (2), for a flow therethrough of combustion exhaust gas from the power generation unit (1), wherein within the casing (2), the second gas flow passage (6) merges into the first gas flow passage (5).

Abstract: A fuel cell system (301) of the present invention comprises a fuel cell (1); a water circulating path (9) through which water associated with an operation of the fuel cell (1) circulates; a water circulator (10) for circulating water in the water circulating path (9); a heater (14) for heating the water circulating path (9); a first abnormality detector (29, 30) for detecting a first abnormality which is an abnormality relating to leakage of water from the water circulating path (9); and a controller (16); the fuel cell system being configured to cause the water circulator (10) to perform a water circulating operation for circulating the water in the water circulating path (9) and cause the heater (14) to perform a heating operation for heating the water circulating path (9), to suppress freezing in the water circulating path, wherein the controller (16) is configured to inhibit the water circulating operation for suppressing freezing and not to inhibit the heating operation for suppressing freezing, in a cas

Abstract: A fuel cell system of the present invention comprises a fuel cell (101); a first heat medium path through which a first heat medium for cooling the fuel cell (101) flows; a first flow control device (107) configured to flow the first heat medium in the first heat medium path; an abnormality detector configured to detect an abnormality; and a controller (110) configured to control the first flow control device (107) such that the fuel cell (101) after shut-down of power generation is cooled with a higher rate in an abnormal shut-down process performed after the abnormality detector detects the abnormality, than in a normal shut-down process.

Abstract: A fuel cell system (1A) comprises a casing (2) having a suction port (31) through which air is introduced from outside into an internal space thereof; a fuel cell (4) accommodated within the casing (2) and configured to generate electric power through an electrochemical reaction between a fuel gas and an oxidizing gas; an air supply unit (6) of a diaphragm type disposed within the casing (2) and configured to take in the air introduced through the suction port (31) and supply the air to the fuel cell (4); and a heating unit (30) disposed within the casing (2) and configured to heat the air in a space from the suction port (31) to the air supply unit (6).