Abstract: A condensation cure organosiloxane composition is disclosed. The composition may be used as an electrically insulating sealant and/or adhesive. The composition is a silicone elastomer composition comprising: (a) a polydiorganosiloxane having at least two —OH or hydrolysable groups per molecule; (b) a cross-linker which will cross-link polydiorganosiloxane (a); (c) a filler component comprising (i) a maximum of 25% by weight of the composition of calcium carbonate and/or silica, and (ii) an amount of one or more fibrous fillers selected from mineral fibers, bulk fibers, refractory fibers, basalt fibers, or mixtures thereof; (d) a condensation curing catalyst; and optionally (e) one or more additives. Upon cure, the composition provides a silicone elastomer having a volume resistivity which is ?2×1015 ?·cm.

Abstract: A method of making a self-sealing membrane for a prosthetic implant includes applying tension to a first layer of a cured elastomeric material to stretch the first layer, and while the first layer remains stretched, applying a second layer of an uncured elastomeric material over a first major surface of the first layer. After the second layer is cured, the tension on the first layer is released, whereupon the first layer returns to a non-stretched configuration for holding the second layer in contraction. The method includes, while the first layer remains stretched, applying a third layer of an uncured elastomeric material over a second major surface of the first layer. After curing the second and third layers, tension is released from the first layer, which returns to the non-stretched configuration for holding the second and third layers in contraction.

Abstract: The invention relates to a preparation for producing a polymer crosslinkable by condensation reaction, which comprises at least one aminopropyltriethoxysilane and at least one polydialkylsiloxane having two terminal hydroxyl groups, wherein the polydialkylsiloxane is represented by the following formula (1): HO—[—SiR1R2—O—]x—OH ??formula (1) wherein in formula (1) R1 and R2 may be the same or different and may be selected from the group consisting of alkyl groups having 1 to 8 carbon atoms and wherein x is an integer from 30 to 2500.

Abstract: The present invention relates to a treatment agent for treating fibers, the treatment agent comprising a condensation product of a liquid composition comprising at least one selected from the group consisting of a polysiloxane compound having a hydrolyzable functional group or a condensable functional group and a hydrolyzate of the polysiloxane compound having a hydrolyzable functional group.

Abstract: Provided is a sealant sheet formed as a sheet. The sealant sheet comprises an epoxy group-containing polysulfide. The epoxy group-containing polysulfide has a disulfide structure and an epoxy group in its molecule.

Abstract: Functional agent-containing fibers according to an embodiment of the present invention, wherein a functional agent is supported by silicone fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane having two or more acrylic groups per molecule. A rate of decrease in the functional agent after the functional agent-containing fibers are washed 10 times is less than 40%. In the present invention, the functional agent-containing fibers may be produced, e.g., by irradiating fibers impregnated with a fiber treatment agent A containing silicone with an electron beam so that the silicone is fixed to the fibers, and impregnating the fibers to which the silicone has been fixed with a fiber treatment agent B containing a functional agent. The functional agent-containing fibers may be produced, e.g.

Abstract: Electronic telecommunication articles are described comprising a crosslinked fluoropolymer layer. In typical embodiments, the crosslinked fluoropolymer layer is a substrate, patterned (e.g. photoresist) layer, insulating layer, passivation layer, cladding, protective layer, or a combination thereof. Also describes are methods of making an electronic telecommunications article and method of forming a patterned fluoropolymer layer. The fluoropolymer preferably comprises at least 80, 85, or 90% by weight of polymerized units of perfluorinated monomers and cure sites selected from nitrile, iodine, bromine, and chlorine. Illustrative electronic communication articles include integrated circuits, printed circuit boards, antennas, and optical fiber cables. Fluoropolymer compositions are also described.

Abstract: The present invention provides an adhesive material with improved bonding performance to a wet substrate, the adhesive material includes a first component selected from a polysiloxane-based adhesive, or a polyurethane-based adhesive; and a second component of a catechol-containing polymeric additive which includes a reaction product of polyvinylpyrrolidone with 3?,4?-dihydroxy-2-chloroacetophenone, and the weight ratio of polyvinylpyrrolidone to 3?,4?-dihydroxy-2-chloroacetophenone ranging from 10:1 to 1:1. The adhesive material being a mixture of at least the first component and the second component, where the second component is approximately 1 wt. % to 10 wt. % of the first component.

Abstract: An implantable soft tissue prosthesis device comprising a silicone elastomer-shell filled with silicone gel or liquid, which among the layers that constitute its shell includes a barrier layer formed of a low permeability silicone, which impedes the bleeding or diffusion of the silicone gel from the inside of the implant to its surroundings through the shell. This barrier layer is given a coloration different to the other layers of the shell, making it visible in the finished product. The coloration of the barrier layer gives the fabricator of the implant as well as to medical personnel, the possibility to identify the presence of the barrier layer and its homogeneity, improving the safety of the device.

Abstract: A surface coating material includes a plurality of fluorine-containing silicon compounds and an additive. The fluorine-containing silicon compounds include a fluorine-containing (poly)ether moiety, a hydrolytic silane moiety, and a linking group between the fluorine-containing (poly)ether moiety and the hydrolytic silane moiety. The linking group is configured to form a non-covalence interaction between adjacent molecules.

Abstract: The present invention provides a curing catalyst for an organic polymer or an organopolysiloxane, which has a high safety and a practical curing speed, and improves the adhesion of a cured product to a substrate, and can be produced at low cost. An aspect of the present invention provides a curing catalyst [B] for an organic polymer or an organopolysiloxane, which is used for curing an organic polymer [A1] or an organopolysiloxane [A2] having a reactive hydrolyzable silicon-containing group, wherein the catalyst [B] contains a titanium compound [B1] represented by the following formula and a secondary amine compound or a tertiary amine compound [B2]. (R1—O)nTi-A4-n (In the formula, R1 is a hydrocarbon group having 1 to 10 carbon atoms, and A is a carboxylic acid residue, and n is 1 or 2.

Abstract: An addition-curable silicone rubber composition and an air bag are provided. The addition-curable silicone rubber composition is characterized by comprising: (A) 100 parts by mass of an alkenyl-group-containing organopolysiloxane; (B) an organohydrogenpolysiloxane, contained in such an amount that the number of moles of silicon-atom-bonded hydrogen atoms contained in (B) component is 5 or greater per mole of the alkenyl groups contained in (A) component; (C) an addition reaction catalyst, contained in an amount of 1-500 ppm, in terms of the mass of the catalyst metal element, of the total mass of (A) and (B) components; (D) 0.1-50 parts by mass of finely powdery silica; (E) 0.1-5.0 parts by mass of an adhesion improver [a mixture comprising (E-1) an organohydrogenpolysiloxane, (E-2) an alkoxysilyl-modified isocyanurate compound, and (E-3) an organosilicon compound]; and (F) 0.1-5.0 parts by mass of a condensation catalyst.

Abstract: A polymer composition comprises a) a component 1 comprising a silane-terminated prepolymer; and b) a component 2 comprising water; and c) a component 3 comprising a silanol condensation catalyst. The composition is packaged in at least two separate packages prior to application, wherein no package contains all three components 1 and 2 and 3. In the composition water is present in an amount of 0.01 to 10 pbw per 100 pbw of prepolymer present in the composition, and the apparent viscosities of each of the packages is at most 95 Pa·s (Brookfield viscosity (A/6/10)) according to ISO 2555 at 23° C. The composition may suitably applied to railway track structures for the dampening of noise and vibrations of rails.

Abstract: Viscous compositions are metered discontinuously into storage vessels such as tubes, tubs, or cartridges, from a stable volume container free of dead space wherein the calculated volume, expressed as the mathematical product of adiabatic compressibility coefficients of the composition, the outlet pressure, and volume of the container exceed the metered volume.

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: A room-temperature vulanizable (RTV) polymeric composition comprising organosiloxane or polyurethane units having at least one terminal methyl isopropyl ketoximino or methyl propyl ketoximino moiety, as well as methods of making the same.

Abstract: The present invention is directed to a coating composition, such as a substantially clear coating composition, which comprises (1) an alkoxysilane, (2) a polysiloxane, (3) a plurality of particles, and (4) curing agent that is reactive with the polysiloxane. The coating composition of the present invention can exhibit increased physical properties, such as scratch resistance, when compared to similar coating compositions that lack the components disclosed herein.

Abstract: The present invention relates to a process for the continuous preparation of mixtures containing organosilicon compound (A) and solid (B) and optionally further components in a mixing unit comprising at least one rotating mixing shaft, wherein at least one mixing shaft makes an angle of inclination with the horizontal of more than 10 degrees and the inlet opening for the solid (B) is arranged higher than the outlet opening.

Abstract: An adhesion promoter composition which comprises an oligomer of a functional alkoxysilane and a specific alkyl alkoxy silane is advantageously employed to improve the bonding of sealants/adhesives/coatings such as moisture curable silylated polymers on various substrates such as wet or dry concrete. In a preferred embodiment the adhesion promoter contains an octyltrialkoxysilane and an oligomer prepared from an epoxy or polyethylene oxide functional alkoxysilane.

Abstract: Hydrophobically modified Si-containing polyamines are useful for treating scale in industrial process streams. Preferred hydrophobically modified Si-containing polyamines are particularly useful for treating aluminosilicate scale in difficult-to-treat industrial process streams, such as in the Bayer alumina process streams, nuclear waste streams and kraft paper mill effluent streams.

Abstract: The present invention has its object to provide a reactive silyl group-containing room temperature curable composition which can give cured products having good recovery, durability and creep resistance and the mechanical physical properties of which can be adjusted so as to be adequate for the use as a sealing material or adhesive and, further, which is low in viscosity and good in workability. This object can be achieved by, for example, a curable composition which comprises an organic polymer (A) containing reactive silyl groups represented by the general formula (1) given below wherein a is 3 and an organic polymer (B) containing an average of 0.5 to 1.5 reactive silyl groups represented by the general formula (1) given below per molecule —Si(R13-a)Xa??(1).

Abstract: The present invention provides a curable composition capable of giving rubbery cured products having excellent adhesion properties to all-purpose substrates, improved weather-resistant adhesion properties to photocatalyst-coated transparent adherends, low modulus and high elongation and, further, showing high weather resistance without undergoing surface cracking or discoloration even when used outdoors for a long period of time. The curable composition of the present invention includes a vinyl polymer (I) and an antioxidant (II). A main chain of the vinyl polymer (I) is a product of living radical polymerization, and the vinyl polymer (I) contains at least one crosslinkable silyl group.

Abstract: In a process for producing crosslinkable organopolysiloxane compositions, in particular organopolysiloxane compositions which can be crosslinked at room temperature, the organopolysiloxane compositions are stored in a storage unit before being packed in moisture-proof containers, the storage having a storage capacity of at least 15 minutes of production capacity of the mixture, the essentially dead-space-free storage unit continually having an internal pressure of more than 1200 hPa during filling.

Abstract: Polymeric hybrid precursors, mixtures of polymeric hybrid precursors and polymers, and polymer composite matrices prepared from the mixture of the polymeric hybrid precursors and the polymer. The mixture of the polymeric hybrid precursors and the polymer can undergo a process to form the polymer composite matrix having a cross-linked network of a silasesquioxane based polymer formed from the polymeric hybrid precursors that interpenetrates the polymer. The polymeric hybrid precursors include chemical linkage moieties that are capable of forming non-covalent bonds with portions of the polymer. The polymer composite matrices are useful as biomaterials in medical devices.

Abstract: A room-temperature-curable organopolysiloxane composition comprising: (A) 100 parts by weight of an organopolysiloxane having a viscosity of from 100 to 500,000 mPa·s at 25° C. and having in one molecule 1.5 or more end groups represented by the general formula: (X)aR13-aSi—, where each X is independently a hydroxyl group or a hydrolyzable group, each R1 is independently a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group, and a is 1, 2, or 3; (B) 0.01 to 40 parts by weight of a cross-linking agent selected from a silane or a siloxane oligomer where the cross-linking agent has three or more silicon-bonded hydrolyzable groups per molecule; and (C) microparticles of thermoplastic resin containing a platinum compound in such an amount that the content of metallic platinum in component (C) is within the range of 0.01 to 5 wt. %, where the microparticles have an average diameter from 0.

Abstract: Provided is a curable composition comprising a reactive silicon group-containing polyoxyalkylene polymer (A), such as a reactive silicon group-containing polyoxypropylene; a reactive silicon group-containing vinyl polymer (B), such as a reactive silicon group-containing (meth)acrylate polymer; and a polyoxyalkylene plasticizer (C) having a low molecular weight, such as polyoxypropylene, the curable composition providing a rubber-like cured object by crosslinking reaction in the presence of moisture. Also provided is a method for sealing ceramic siding boards comprising applying the curable composition as a sealant and curing the curable composition.

Abstract: A method is disclosed for preparing an elastomeric base composition comprising: (I) mixing by an extrusion process (A) a fluorocarbon elastomer with (B) an optional compatibilizer, (C) an optional catalyst (D) a silicone base comprising a curable organopolysiloxane, (E), an optional crosslinking agent (F) a cure agent in an amount sufficient to cure said organopolysiloxane; and (II) dynamically vulcanizing the organopolysiloxane, wherein the weight ratio of fluorocarbon elastomer (A) to silicone base (B) in the elastomeric base composition ranges from 95:5 to 30:70. The cured rubber compositions obtained from the elastomeric base compositions herein have good fuel resistance properties.

Abstract: Disclosed is a copolymer comprising a polyethylene segment which is a main chain; a reactive silicon-containing group which is a side group of the polyethylene segment; and a polycondensation segment bonded to the polyethylene segment, which is a part of the main chain together with the polyethylene segment or a side chain with respect to the polyethylene segment. There are provided a condensation polymer having many reactive silicon-containing groups with respect to one molecule and an organic-inorganic hybrid polymeric material having superior properties such as strength, heat resistance, weather resistance and chemical resistance by using the polymer.

Abstract: The present invention relates to a process for preparing organyloxysilyl-terminated polymers which have increased stability toward atmospheric moisture, by reacting hydroxy-terminated organic polymers with isocyanato-functional silanes in the presence of at least one catalyst selected from the group consisting of bismuth and zinc compounds, and to crosslinkable compositions comprising such polymers.

Abstract: A silicone composition which can be used in the production of varnishes that can be applied to supports to reduce the friction coefficient. The silicone composition includes at least one polyorganosilane A (POS) which can be cationically and radically cross-linked by functional cross-linking groups (GER) and a primer C chosen from onium borates. The composition also includes molecules (POS D) which are substituted by secondary functional groups (GFS) caned by silicon atoms and selected from those that include at least one alkoxy and/or epoxy and/or carboxy motif and optionally a charge (e.g. silica).

Abstract: An object of the present invention is to provide a low-modulus, high elongation sealant having improved dynamic durability, desirable mechanical properties, and good workability. The present invention provides a sealant containing an oxyalkylene polymer (A) having a number-average molecular weight of 20,000 to 50,000 and 0.8 or more of reactive silicon groups per molecule on average; 10 parts by weight or more of a plasticizer (B) per 100 parts by weight of the polymer (A); a filler (C); and a curing catalyst (D). This sealant has an improved durability and can achieve the above-described object.

Abstract: Pharmaceutical containers containing at least one shaped component serving as a sealing barrier such as closure, stopper or plunger, for the contents of the container are disclosed. Such sealing barriers are made from elastomeric compositions containing a silylated copolymer of isobutylene/isoprene (butyl rubber) and para-methylstyrene which are curable by contact with moisture.

Abstract: A room-temperature-curable organopolysiloxane composition comprising: (A) an organopolysiloxane having 1.5 or more end groups having at least one hydroxyl group on the average; (B) a silane or a siloxane oligomer having three or more silicon-bonded hydrolyzable groups; (D) an inorganic powder; and either (C) microparticles of thermoplastic resin containing a platinum compound having an average diameter from 0.1 to 20 ?m; or (C1) a platinum compound; and (C2) an organosiloxane oligomer which contains aryl and alkenyl groups and has 8 or less silicon atoms in each molecule and which contains in each molecule at least one divalent organosiloxane as represented by the formula: —(R2)(R3)SiO—(R2)(R3)Si—, (where R2 is an aryl group, and R3 is an alkenyl group), in a quantity of at least 2 moles of component (C2) per 1 mole platinum atoms in component (C1).

Abstract: By using a high viscosity moisture-curable adhesive composition comprising at least one polymer or resin selected from the group consisting of (A) a reactive silyl group-containing polyoxyalkylene polymer, (B) a reactive silyl group-containing saturated hydrocarbon polymer, (C) a copolymer of which molecular chain is substantially made of one or more alkyl (meth)acrylate monomer unit(s) and (D) an epoxy resin, it becomes possible to bond an adherend to a substrate without open time and without temporary tacking after application.

Abstract: Disclosed is a copolymer comprising a polyethylene segment which is a main chain; a reactive silicon-containing group which is a side group of the polyethylene segment; and a polycondensation segment bonded to the polyethylene segment, which is a part of the main chain together with the polyethylene segment or a side chain with respect to the polyethylene segment. There are provided a condensation polymer having many reactive silicon-containing groups with respect to one molecule and an organic-inorganic hybrid polymeric material having superior properties such as strength, heat resistance, weather resistance and chemical resistance by using the polymer.

Abstract: The invention provides a curable composition which comprises a polyoxyalkylene polymer having a reactive silicon group and a (meth)acrylate copolymer and exhibits excellent weather resistance for a prolonged period. This composition comprises 100 parts by weight of a polyoxyalkylene polymer (A) having at least one silicon-containing functional group capable of causing crosslinking through the formation of a siloxane linkage and 20 to 1000 parts by weight of a (meth)acrylate copolymer (B) having a hindered amine structure.

Abstract: Organopolysiloxane compositions obtainable by reaction of (a) essentially linear organopolysiloxanes which are terminated at both ends by Si-bonded hydroxy groups, (b) optionally, plasticizers, (c) at least one dialkylaminomethylalkyldialkoxysilane chain extender and/or partial hydrolysate thereof, (d) at least one deactivator, (e) optionally, one or more alkyltrialkoxysilanes and/or partial hydrolysates thereof, and (f) optionally, catalysts for accelerating the reaction of silane (e) with Si—OH groups, are useful in low-modulus compositions which can be crosslinked at room temperature, in particular, compositions which crosslink with elimination of alcohols.

Abstract: A composition comprising at least one fluorochemical polyether silane compound having a polyfluoropolyether segment and at least two hydrolysable silane groups per molecule, one or more non-fluorinated compounds having at least two hydrolysable groups per molecule, and/or a partial condensate thereof, is disclosed. The composition provides durable water, oil and stain repellency to a substrate.

Abstract: A room temperature curable organopolysiloxane composition is provided which includes an organopolysiloxane, a curing agent, and a specific organic compound incorporating at least one sulfur atom within each molecule. By producing a molding matrix with this type of composition, unsatisfactory curing of an unsaturated polyester resin is unlikely to occur at the contact surface with the silicone rubber of the matrix, and furthermore the mold releasability of the matrix relative to unsaturated polyester resins is excellent. As a result, the matrix can be used repeatedly for a significant number of molding operations.

Abstract: Crosslinkable compositions employing organosilicon compounds having at least two hydrolyzable groups, optionally a crosslinker, and optionally a compound containing basic nitrogen, include a crosslinking catalyst which is a reaction product of a phosphorus compound, a sulfur compound, and a tin compound. The compositions exhibit improved shelf life.

Abstract: A room temperature curable organopolysiloxane composition comprising (A) an organopolysiloxane of HO(SiR12O)nH and/or (R2O)3-mR1mSiO(SiOR12O)nSiR1m(OR2)3-m wherein R1 is a monovalent C1–10 hydrocarbon radical, R2 is a monovalent C1–6 hydrocarbon radical, n is an integer of at least 10, and m is 0 or 1, (B) a silane compound having at least two hydrolyzable radicals, the remaining radicals being methyl, ethyl, propyl, vinyl or phenyl, and/or a partial hydrolyzate thereof, and (C) an organosilicon compound of (RO)pR13-pSiR3—NH—R4—NH2 wherein R1 and R2 are as defined above, R3 is a divalent C1–10 hydrocarbon radical, R4 is a divalent aromatic ring-bearing C7–10 hydrocarbon radical, and p is 1, 2 or 3, at least one of the NH and NH2 radicals being not directly attached to the aromatic ring in R4, cures into silicone rubber which has improved adherence even upon exposure to hot steam.

Abstract: One component vulcanizable silicone elastomer compositions contain at least one organosilicon compound bearing a plurality of hydrolyzable groups, optionally one or more crosslinkers bearing hydrolyzable groups, and a catalyst system comprising a tin compound bearing a sulphonic acid, sulfonic acid amide, or sulfonic acid ester group, and a basic nitrogen compound. Storage stable compositions capable of vulcanizing to clear or translucent moldings are produced.

Abstract: Storage stability of one-component elastomers prepared from constituents having alkoxysilyl end groups is enhanced by employing bin compounds having a coordination number of 5 or 6 in which tin is coordinately bonded to a P?O group as at least one condensation catalyst.

Abstract: The invention relates to silicone compositions that are used in the production of varnishes that can be applied to supports in order to reduce the friction coefficient. The inventive composition comprises at least one polyorganosiloxane A (POS) which can be cationically and radically cross-linked by functional cross-linking groups (GFR) and a primer C chosen from onium borates, characterized in that the inventive composition also comprises molecules (POS D) which are substituted by secondary functional groups (GFS) carried by silicon atoms and selected from those that include at least one alkoxy and/or epoxy and/or carboxy motif and optionally a charge (e.g. silica). The invention can be used with anti-friction varnishes for RTV silicone coatings for material used in air bags, thermal transfer ribbons or packing films.

Abstract: A pressure sensitive adhesive composed of a mixture comprising a) a styrene block copolymer having a star-shaped structure and a molecular weight Mw of more than 300,000 g/mol, or having elastomer blocks which contain more than 30% by weight of 1,2-linked diene in their block structure, or both, and which is crosslinkable by exposure to UV-light or electron beams, and b) one or more block copolymers composed of vinylaromatic blocks and elastomer blocks, the block polyvinylaromatic content being greater than 20%, and c) one or more tackifier resins.

Abstract: A moisture-curable, alkoxysilane-functional polyether urethanes containing a) 20 to 90% by weight, based on the weight of a) and b), of a polyether urethane containing two or more reactive silane groups and one or more polyether segments, wherein the polyether segments have a number average molecular weight of at least 3000 and a degree of unsaturation of less than 0.04 milliequivalents/g, provided that the sum of the number average molecular weights of all of the polyether segments per molecule averages 6000 to 20,000, and wherein the reactive silane groups are incorporated as the reaction product of an isocyanate group with a compound corresponding to the formula b) 10 to 80% by weight, based on the weight of a) and b), of a polyether urethane containing one reactive silane group and one or more polyether segments having a number average molecular weight of 1000 to 15,000.

Abstract: A room-temperature curable organopolysiloxane composition comprising a straight chain organopolysiloxane with hydroxyl groups and/or alkoxy groups at the terminals of the molecular chain, a ferrite such as a Ni—Zn-based ferrite, and a silane compound with hydrolysable groups such as alkenoxy groups, ketoxime groups or alkoxy groups, and/or a partial hydrolysis-condensation product thereof, produces a silicone rubber which displays excellent adhesion to substrates formed from synthetic resins such as acrylic resins, polyamide resins, polybutylene terephthalate, polystyrene and polyphenylene sulfide. The composition is useful as a sealing material, or as an adhesive for electrical components or electronic components.

Abstract: The invention relates to compositions used for aqueous delivery of self-emulsifying fluorinated alkoxysilanes to substrates to provide oil and water resistive coatings for the substrates, a method of treating a substrate to render it oil and water repellent, and articles having coatings made from the compositions.

Abstract: The present invention relates to a solvent free one-part room temperature vulcanizable organopolysiloxane rubber composition which crosslinks in the presence of moisture to form a high gloss coating with minimal shrinkage for surfaces.

Abstract: A moisture curable composition excellent in transparency, operating efficiency and storage stability, and is suitable for use as an adhesive and a sealing material is provided. The moisture curable composition produced by blending 100 parts by weight of a mixture (A) and 2 parts by weight to 300 parts by weight of amorphous powder (B). The mixture (A) comprises (1) a copolymer having reactive silicon groups which can be cross-linked by hydrolysis, whose molecular chain substantially consists of (i) alkylacrylate and/or alkylmethacrylate monomeric units having an alkyl group with 1 to 8 carbon atoms, and (ii) alkylacrylate and/or alkylmethacrylate monomeric units having an alkyl group with 10 or more carbon atoms, and (2) a polymer substantially consisting of oxyalkylene including reactive silicon groups which can be cross-linked by hydrolysis. The amorphous powder (B) has a grain diameter ranging from 0.01 ?m to 300 ?m.