Abstract: Provided is a novel polyoxyalkylene compound which contains, at a molecular chain terminal, at least one reactive silicon-containing group represented by formula (1) per molecule and which has a main chain that is a polyoxyalkylene polymer. Also provided are: a process for producing the novel polyoxyalkylene compound; a room-temperature-curable composition which includes the compound as a main component and can contain any of various crosslinking agents; a sealing material; and an article. (In formula (1), R1 and R2 are each a monovalent hydrocarbon group, a hydrogen atom, or a triorganosiloxy group; n is 2 or larger; m is 1 or larger; and the broken line is a linking bond).

Abstract: Provided are a primer composition that can adhere well to a variety of adherends and ensures a long workable time together with excellent durability, and a curtain wall unit. A primer composition comprising: (A) 100 parts by mass of an organosiloxane polymer having a three-dimensional network structure comprising R3SiO1/2 units (R independently represents a C1-6 substituted or unsubstituted monovalent hydrocarbon group) and SiO4/2 units, the molar ratio of R3SiO1/2 units to SiO4/2 units being 0.6-1.2; (B) 300-1,000 parts by mass of a mixture of organo-oxy-group-containing titanium compounds containing 75 mol % or more of an organo-oxy-group-containing titanium compound represented by formula (1) Ti(OR1)3(R2CH2COCHCOOCH2R2)1 ??(1) (R1 may be the same or different and are substituted or unsubstituted monovalent hydrocarbon groups, R2 may be the same or different and are hydrogen atoms and/or substituted or unsubstituted monovalent hydrocarbon groups); and (C) 1,000-8,000 parts by mass of a solvent.

Abstract: A room-temperature-curable organopolysiloxane composition that contains: 100 parts by mass of the product of reacting (A) a diorganopolysiloxane that is capped at both ends by a hydroxyl group, a hydroxy-group-containing hydrocarbon compound in such an amount as for there to be 0.01-0.5 mol per 1 mol of hydroxyl groups that are bonded to silicon atoms in the diorganopolysiloxane, and platinic chloride hexahydrate in an amount that is 0.01-1 mass % of the total of component (A); (B) 3-300 parts by mass of an inorganic filler; (C) 1-20 parts by mass of an organosilane that has at least 3 hydrolyzable groups per molecule thereof and/or a partial hydrolysis condensate of an organosilane that has at least 3 hydrolyzable groups per molecule thereof; (D) 0.01-5 parts by mass of a condensation cure catalyst; and (E) 0.1-5 parts by mass of a silane coupling agent (excluding component (C) and component (D)).

Abstract: Provided are an organosilicon compound capable of improving the storage stability of a composition (curability after long-term storage); and a method for producing the same. The organosilicon compound has, in one molecule, at least one carboxylic acid ester group represented by the following general formula (1) and at least one hydrolyzable silyl group represented by the following general formula (2): —OC(?O)CH2R1??(1) wherein R1 represents a hydrogen atom or a methyl group; —SiR23-nYn??(2) wherein R2 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, Y represents a hydrolyzable group, and n represents an integer satisfying 1?n?3.

Abstract: Provided are a primer composition that can adhere well to a variety of adherends and ensures a long workable time together with excellent durability, and a curtain wall unit. A primer composition comprising: (A) 100 parts by mass of an organosiloxane polymer having a three-dimensional network structure comprising R3SiO1/2 units (R independently represents a C1-6 substituted or unsubstituted monovalent hydrocarbon group) and SiO4/2 units, the molar ratio of R3SiO1/2 units to SiO4/2 units being 0.6-1.2; (B) 300-1,000 parts by mass of a mixture of organo-oxy-group-containing titanium compounds containing 75 mol % or more of an organo-oxy-group-containing titanium compound represented by formula (1) Ti(OR1)3(R2CH2COCH2COOCH2R2)1 ??(1) (R1 may be the same or different and are substituted or unsubstituted monovalent hydrocarbon groups, R2 may be the same or different and are hydrogen atoms and/or substituted or unsubstituted monovalent hydrocarbon groups); and (C) 1,000-8,000 parts by mass of a solvent.

Abstract: Provided is a novel polyoxyalkylene compound which contains, at a molecular chain terminal, at least one reactive silicon-containing group represented by formula (1) per molecule and which has a main chain that is a polyoxyalkylene polymer. Also provided are: a process for producing the novel polyoxyalkylene compound; a room-temperature-curable composition which includes the compound as a main component and can contain any of various crosslinking agents; a sealing material; and an article. (In formula (1), R1 and R2 are each a monovalent hydrocarbon group, a hydrogen atom, or a triorganosiloxy group; n is 2 or larger; m is 1 or larger; and the broken line is a linking bond.

Abstract: Provided are an organosilicon compound capable of improving the storage stability of a composition (curability after long-term storage); and a method for producing the same. The organosilicon compound has, in one molecule, at least one carboxylic acid ester group represented by the following general formula (1) and at least one hydrolyzable silyl group represented by the following general formula (2): —OC(?O)CH2R1??(1) wherein R1 represents a hydrogen atom or a methyl group; —SiR23-nYn??(2) wherein R2 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, Y represents a hydrolyzable group, and n represents an integer satisfying 1?n?3.

Abstract: A room temperature curable organopolysiloxane composition comprising (A) a diorganopolysiloxane, (B) an alkoxysilane compound and/or a partial hydrolytic condensate thereof, (C) a curing catalyst, and (D) an organic compound having at least one fatty acid ester radical —OC(?O)CH2R3 (wherein R3 is H or a monovalent hydrocarbon radical) and 0, 1 or 2 hydroxyl radicals effectively cures to glass and fluoropolymer-coated aluminum without a need for primer and has storage stability in a sealed package.

Abstract: An adhesion promoter obtained by reacting a secondary amino group-containing silicon compound represented by the general formula (1): with an epoxy compound (B) represented by the following general formula (2): is provided. In the formulae, R1 is an alkyl group, R2 is a monovalent hydrocarbon group, a is 1, 2, or 3; R3 is the same or different hydrogen atom or an alkyl group, and R4 is a group represented by the general formula (3) or (4): /wherein R1 is an alkyl group, R2 is a monovalent hydrocarbon group, R5 is an alkylene or alkyleneoxyalkylene group, R6 is an alkylene group, R7 is an alkyl, alkenyl, or acyl group, and a is 1, 2, or 3. The resin composition containing such adhesion promoter exhibits excellent durability of adhesion to glass as well as metals.

Abstract: A room temperature-curable polyorganosiloxane composition is provided. This composition contains (a) a polydiorganosiloxane represented by the following general formula (1) or (2): wherein R is a monovalent hydrocarbon group, a is an integer of at least 10, R1 is a monovalent hydrocarbon group, X is oxygen atom or a divalent hydrocarbon group, and n is an integer of 1 to 3; (b) a triorganosilanol represented by general formula (3): R23SiOH ??(3) wherein R2 is a monovalent hydrocarbon group; (c) an organosilane containing at least 3 hydrolyzable groups in one molecule and/or its partial hydrolysate; and (d) a calcium carbonate.

Abstract: A room temperature curable organopolysiloxane composition comprising (A) a diorganopolysiloxane, (B) an alkoxysilane compound and/or a partial hydrolytic condensate thereof, (C) a curing catalyst, and (D) an organic compound having at least one fatty acid ester radical —OC(?O)CH2R3 (wherein R3 is H or a monovalent hydrocarbon radical) and 0, 1 or 2 hydroxyl radicals effectively cures to glass and fluoropolymer-coated aluminum without a need for primer and has storage stability in a sealed package.

Abstract: An RTV organopolysiloxane composition is provided comprising (A) a diorganopolysiloxane capped at both ends of its molecular chain with hydroxysilyl, alkoxysilyl or alkoxyalkoxysilyl and having a viscosity of 20-1,000,000 mPa-s at 25° C., (B) a bis(alkoxysilylalkyl)disiloxane compound, and (C) a curing catalyst. The composition is fast curable into a silicone rubber which establishes a firm adhesion to substrates with an active surface such as float glass and maintains the adhesion even in a harsh environment as immersed in hot water over a long term.

Abstract: A room temperature-curable polyorganosiloxane composition is provided. This composition contains (a) a polydiorganosiloxane represented by the following general formula (1) or (2): wherein R is a monovalent hydrocarbon group, a is an integer of at least 10, R1 is a monovalent hydrocarbon group, X is oxygen atom or a divalent hydrocarbon group, and n is an integer of 1 to 3; (b) a triorganosilanol represented by general formula (3): R23SiOH ??(3) wherein R2 is a monovalent hydrocarbon group; (c) an organosilane containing at least 3 hydrolyzable groups in one molecule and/or its partial hydrolysate; and (d) a calcium carbonate.

Abstract: A room temperature curable organopolysiloxane composition is provided. It includes (A): a diorganopolysiloxane containing 2 hydroxyl groups or hydrolysable groups bonded to silicon atoms within each molecule; (B): (B1) an amine compound of the general formula (2): R1NH2??(2) (wherein, R1 represents a monovalent hydrocarbon group of 12 to 30 carbon atoms), and/or an amine compound of the general formula (3): H2N—R2—NH2??(3) (wherein, R2 represents a bivalent hydrocarbon group of 4 to 30 carbon atoms), or (B2) a compound which, via a hydrolysis reaction, is capable of yielding an amine compound of (B1); (C) a cross-linking agent; and (D) a curing catalyst. The composition, following curing, generates a silicone rubber to which a coating can be easily applied, and in which that coating is not easily removed.

Abstract: A room-temperature curable organopolysiloxane composition is provided, which includes (A) an organopolysiloxane with the terminals blocked with a hydroxyl group, a hydrolysable group, or both these types of groups, and (B) an organosilicon compound containing a hydrolysable group, a partial hydrolysis-condensation product thereof, or a mixture of the two, and (C) a polysiloxane containing an oxyalkylene group bonded to a silicon atom via, for example, a C—C—Si linkage. Application of this composition to an underwater structure is able to generate an antifouling coating that is effective in preventing the adhesion and growth of aquatic organisms on the surface of the underwater structure, and displays superior long term endurance of this antifouling effect.

Abstract: A room temperature curable organopolysiloxane composition is provided. It includes (A): a diorganopolysiloxane containing 2 hydroxyl groups or hydrolysable groups bonded to silicon atoms within each molecule; (B): (B1) an amine compound of the general formula (2): R1NH2 ??(2) (wherein, R1 represents a monovalent hydrocarbon group of 12 to 30 carbon atoms), and/or an amine compound of the general formula (3): H2N—R2—NH2 ??(3) (wherein, R2 represents a bivalent hydrocarbon group of 4 to 30 carbon atoms), or (B2) a compound which, via a hydrolysis reaction, is capable of yielding an amine compound of (B1); (C) a cross-linking agent; and (D) a curing catalyst. The composition, following curing, generates a silicone rubber to which a coating can be easily applied, and in which that coating is not easily removed.

Abstract: A navigation apparatus wherein “latitude” and “longitude” are used as coordinate information on a set location.

Abstract: A room-temperature curable organopolysiloxane composition is provided, which includes (A) an organopolysiloxane with the terminals blocked with a hydroxyl group, a hydrolysable group, or both these types of groups, and (B) an organosilicon compound containing a hydrolysable group, a partial hydrolysis-condensation product thereof, or a mixture of the two, and (C) a polysiloxane containing an oxyalkylene group bonded to a silicon atom via, for example, a C—C—Si linkage. Application of this composition to an underwater structure is able to generate an antifouling coating that is effective in preventing the adhesion and growth of aquatic organisms on the surface of the underwater structure, and displays superior long term endurance of this antifouling effect.

Abstract: A navigation apparatus wherein “latitude” and “longitude” are used as coordinate information on a set location.

Abstract: An external member for a tripod joint including a cup shaped spider holding portion for holding a spider formed with trunions and a stem portion formed with splines for power transmission coupled to the bottom of the spider holding portion and wherein the bottom of the spider holding portion is made imperforate and at least the spider holding portion or the stem holding portion is formed with an annular ridge and the spider holding portion and the stem portion are integrally friction-welded together at the annular ridge.