A curable resin composition having high transparency in the UV region, UV resistance and heat resistance. The curable resin composition includes an alkoxy oligomer represented by Formula 1 of (R.sup.1R.sup.2R.sup.3SiO.sub.1/2).sub.w(R.sup.4R.sup.5SiO.sub.2/2).sub.x(R.sup.6SiO.sub.3/2).sub.y(SiO.sub.4/2).sub.z and a curing catalyst. The curing catalyst is phosphoric acid present in an amount of 3-30 parts by weight based on 100 parts by weight of the alkoxy oligomer, or alkoxide of at least one metal selected from the group consisting of B, Al, P, Sc, Ga, Y, Zr, Nb, In, Sn, La, Gd, Dy, Yb, Hf, Ta and W, present in an amount of 0.5-20 parts by weight based on 100 parts by weight of the alkoxy oligomer. Each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 independently represents the same or a different organic group, w, x, y and z are 0 or positive numbers satisfying the relationship of w+x+y+z=1, and the atomic ratio of O/Si is 2.3-3.5.

A curable resin composition having high transparency in the UV region, UV resistance and heat resistance. The curable resin composition includes an alkoxy oligomer represented by Formula 1 of (R.sup.1R.sup.2R.sup.3SiO.sub.1/2).sub.w(R.sup.4R.sup.5SiO.sub.2/2).sub.x(R.sup.6SiO.sub.3/2).sub.y(SiO.sub.4/2).sub.z and a curing catalyst. The curing catalyst is phosphoric acid present in an amount of 3-30 parts by weight based on 100 parts by weight of the alkoxy oligomer, or alkoxide of at least one metal selected from the group consisting of B, Al, P, Sc, Ga, Y, Zr, Nb, In, Sn, La, Gd, Dy, Yb, Hf, Ta and W, present in an amount of 0.5-20 parts by weight based on 100 parts by weight of the alkoxy oligomer. Each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 independently represents the same or a different organic group, w, x, y and z are 0 or positive numbers satisfying the relationship of w+x+y+z=1, and the atomic ratio of O/Si is 2.3-3.5.

There are provided a dielectric film which is excellent in heat resistance and is capable of improvement in breakdown field, a film capacitor and a combination type capacitor using the dielectric film, an inverter, and an electric vehicle. A film capacitor having excellent heat resistance and high breakdown field is obtained by producing a film capacitor that uses a dielectric film comprising an organic resin and a plurality of fine particles containing a metal element, an average of diameters of the fine particles falling in a range of 0.5 nm to 50 nm. Such a film capacitor and a combination type capacitor connected thereto via a bus bar are preferably used in an inverter and an electric vehicle.

The present invention is directed to a tire layer (e.g., tire tread or carcass layer) having a rubber composition including a pyrazolone-based compound in combination with reinforcing filler material and optionally a processing aid, and tires using the same, that provides desirable tire performance properties, such as improvements in tear strength without negatively impacting stiffness or hysteresis. In one embodiment, the tire layer includes a rubber composition having an elastomer (e.g., natural or isoprene rubber), a pyrazolone-based compound, reinforcing filler selected from carbon black only, carbon black/silica blends only, or graphene, functionalized graphene, carbon nanotubes, functionalized carbon nanotubes or mixtures thereof further optionally with carbon black, and an optional processing aid, such as a metal glycerolate, in desirable amounts to provide enhanced tear strength without negatively impacting stiffness or hysteresis.

The two-part curable composition has excellent curability, and exhibits flexibility and adhesion durability. The two-part curable composition includes a first reagent containing at least a 2-cyanoacrylic acid ester and a second reagent containing at least a polymer having a hydrolyzable silyl group, in which an elastomer and a curing catalyst for the above polymer are each contained in at least one of the first and second reagents in predetermined amounts. A preferable curing catalyst is a compound having a metal element and an organic group bonded to the metal element via oxygen, or an acid having a pKa of 4 or lower at 25° C. Preferably, a curing accelerator for 2-cyanoacrylic acid ester is contained in at least one of the first and second reagents.

The invention relates to a primer for improving the adhesion of adhesive tapes to hydrophilic surfaces, such as, in particular, glass or ceramic. The primer according to the invention comprises, dissolved or dispersed in one or more solvents, a mixture G of at least one copolymer obtained by copolymerization of a monomer mixture comprising to at least 90 wt. % the following monomers: vinylcaprolactam and/or vinylpyrrolidone and one or more of the monomers a) and b): c) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl radical of the alcohol, d) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl radical of the alcohol, at least one organofunctional silane of the general structure (Ia) or (Ib)

(R.sup.1O—).sub.xSi(CH.sub.2OR.sup.2).sub.y(R.sup.3).sub.z  (Ia)

(R.sup.1O—).sub.xSi(CH.sub.2NHR.sup.2).sub.y(R.sup.3).sub.z  (Ib), wherein the radicals R.sup.1 independently of each other represent a C.sub.1-C.sub.4-alkyl radical, a C.sub.2-C.sub.6-alkoxyalkyl radical or an acetyl radical; the radicals R.sup.2 independently of each other represent an organic radical; the radicals R.sup.3 independently of each other represent a C.sub.1-C.sub.18-alkyl radical and x=1, 2 or 3; y=1, 2 or 3; x+y≦4 and z=4−x−y; at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates, at least one amine.

A filler material for an organic electroluminescent element, formed of a resin composition being liquid at 25° C., and containing a hydrocarbon polymer having a number average molecular weight of 300 or more and less than 32,000 and an organometallic compound represented by M-L.sub.n (wherein, M represents a metal atom; L represents an organic group having 9 or more carbon atoms and 1 or more oxygen atoms, and all of L represent the same organic group; and n represents the valence of a metal atom M), wherein a contact angle to silicon nitride is 10 to 40 degrees, and an amount of outgassing other than moisture upon heating at 85° C. for 1 hour is 500 ppm or less in terms of a toluene equivalent, and a method of sealing an organic electroluminescent element using the same.

A filler material for an organic electroluminescent element, formed of a resin composition being liquid at 25° C., and containing a hydrocarbon polymer having a number average molecular weight of 300 or more and less than 32,000 and an organometallic compound represented by M-L.sub.n (wherein, M represents a metal atom; L represents an organic group having 9 or more carbon atoms and 1 or more oxygen atoms, and all of L represent the same organic group; and n represents the valence of a metal atom M), wherein a contact angle to silicon nitride is 10 to 40 degrees, and an amount of outgassing other than moisture upon heating at 85° C. for 1 hour is 500 ppm or less in terms of a toluene equivalent, and a method of sealing an organic electroluminescent element using the same.

A filler material for an organic electroluminescent element, formed of a resin composition being liquid at 25° C., and containing a hydrocarbon polymer having a number average molecular weight of 300 or more and less than 32,000 and an organometallic compound represented by M-L.sub.n (wherein, M represents a metal atom; L represents an organic group having 9 or more carbon atoms and 1 or more oxygen atoms, and all of L represent the same organic group; and n represents the valence of a metal atom M), wherein a contact angle to silicon nitride is 10 to 40 degrees, and an amount of outgassing other than moisture upon heating at 85° C. for 1 hour is 500 ppm or less in terms of a toluene equivalent, and a method of sealing an organic electroluminescent element using the same.

The present invention provides: a novel organic titanium compound having an effect as an adhesion promoter by itself; a production method of such organic titanium compound; and a room temperature-curable resin composition containing such organic titanium compound both as a curing catalyst and as an adhesion promoter. Provided are an organic titanium compound represented by an average composition formula (I):

Ti(OR.sup.1).sub.4-a(Y.sub.3Si-A-O—CO—CH═C(O)R).sub.a (wherein R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, R represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, A represents a divalent hydrocarbon group having 3 to 6 carbon atoms, Y represents a hydrolyzable group, and a represents a number satisfying 0<a<4); a production method of such organic titanium compound; and a room temperature-curable resin composition that contains a room temperature-curable resin.