Provided is a resin composition that has high moisture resistance reliability after curing (particularly, high shear strength after a moisture resistance test), is curable at low temperature, and has light curing properties and heat curing properties. There are also provided an adhesive agent containing this resin composition, a cured product of the resin composition, a semiconductor device containing this cured product, and an electronic component containing the semiconductor device. The resin composition includes (A) a multifunctional (meth)acrylate resin, (B) a multifunctional thiol resin, and (C) a calcium carbonate filler having a purity of 99% or more. The component (B) preferably contains a multifunctional thiol resin having no ester bond in the molecule. The resin composition more preferably further contains talc.

Provided is a resin composition that has high moisture resistance reliability after curing (particularly, high shear strength after a moisture resistance test), is curable at low temperature, and has light curing properties and heat curing properties. There are also provided an adhesive agent containing this resin composition, a cured product of the resin composition, a semiconductor device containing this cured product, and an electronic component containing the semiconductor device. The resin composition includes (A) a multifunctional (meth)acrylate resin, (B) a multifunctional thiol resin, and (C) a calcium carbonate filler having a purity of 99% or more. The component (B) preferably contains a multifunctional thiol resin having no ester bond in the molecule. The resin composition more preferably further contains talc.

A liquid crystal cell according to the present invention includes a TFT board including a first dielectric substrate, TFTs supported by the first dielectric substrate, and patch electrodes, a slot board including a second dielectric substrate and a slot electrode having slots and supported by the second dielectric substrate, and a liquid crystal layer between the TFT board and the slot board, which are positioned with the patch electrodes and the slot electrode facing each other, and a sealant disposed between the TFT board and the slot board and surrounding the liquid crystal layer. The liquid crystal layer includes a liquid crystal compound containing an isothiocyanate group. The sealant includes an ene-thiol compound in which an ene compound and a thiol compound are bonded by using a radical.

A liquid crystal cell according to the present invention includes a TFT board including a first dielectric substrate, TFTs supported by the first dielectric substrate, and patch electrodes, a slot board including a second dielectric substrate and a slot electrode having slots and supported by the second dielectric substrate, and a liquid crystal layer between the TFT board and the slot board, which are positioned with the patch electrodes and the slot electrode facing each other, and a sealant disposed between the TFT board and the slot board and surrounding the liquid crystal layer. The liquid crystal layer includes a liquid crystal compound containing an isothiocyanate group. The sealant includes an ene-thiol compound in which an ene compound and a thiol compound are bonded by using a radical.

Dual cure compositions include a combination of an organoborane complex and a radical oxidizing agent as co-catalysts. The compositions are curable under dark conditions and can be used to catalyze thiol-ene reactions. The compositions are useful as sealants.

Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N, N, N-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups

Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N, N, N-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups

Metal or metallized reinforcer, at least the surface of which is at least partially metallic, at least said metallic part being coated with a polybenzoxazine, the repeat units of which comprise at least one unit corresponding to the formulae (I) or (II):

##STR00001##

in which: Z.sub.1 represents an at least divalent, aliphatic, cycloaliphatic or aromatic bonding group comprising at least one carbon atom and optionally at least one heteroatom selected from O, S, N and P; X.sub.1 and X.sub.2, which are identical or different, represent O or S; Ar.sub.1 and Ar.sub.2, which are identical or different, represent a substituted or unsubstituted phenylene group; Z.sub.2 represents O or (S).sub.n, the symbol n representing an integer equal to 1 or greater than 1.

Use of such a reinforcement for the reinforcement of a rubber article, in particular a motor vehicle tyre.

Metal or metallized reinforcer, at least the surface of which is at least partially metallic, at least said metallic part being coated with a polybenzoxazine, the repeat units of which comprise at least one unit corresponding to the formulae (I) or (II):

##STR00001##

in which: Z.sub.1 represents an at least divalent, aliphatic, cycloaliphatic or aromatic bonding group comprising at least one carbon atom and optionally at least one heteroatom selected from O, S, N and P; X.sub.1 and X.sub.2, which are identical or different, represent O or S; Ar.sub.1 and Ar.sub.2, which are identical or different, represent a substituted or unsubstituted phenylene group; Z.sub.2 represents O or (S).sub.n, the symbol n representing an integer equal to 1 or greater than 1.

Use of such a reinforcement for the reinforcement of a rubber article, in particular a motor vehicle tyre.

Chemically resistant sealant compositions include high equivalent weight sulfur-containing prepolymers. Upon exposure to chemicals the properties of sealants prepared using the prepolymers exhibit excellent fuel and phosphate ester resistance.