The present invention relates to a vulcanizable elastomeric composition comprising a secondary accelerator that may be used in combination with sulphenamide alone, completely avoiding the use of a guanidine. Moreover, said accelerator promotes dispersion of the silica in the compound and migrates with difficulty in the elastomeric composition itself. The invention also relates to the use of a vulcanization accelerator for said elastomeric composition, to the associated vulcanization process and to a tyre comprising same.

An optical image lens assembly includes at least one optical lens element which is made of a plastic material and includes at least one short-wavelength light absorbing agent. The short-wavelength light absorbing agent is homogeneously mixed with the plastic material. The optical lens element including the short-wavelength light absorbing agent has refractive power, and at least one of the object-side surface and the image-side surface of the optical lens element including the short-wavelength light absorbing agent is aspheric.

An optical image lens assembly includes at least one optical lens element which is made of a plastic material and includes at least one short-wavelength light absorbing agent. The short-wavelength light absorbing agent is homogeneously mixed with the plastic material. The optical lens element including the short-wavelength light absorbing agent has refractive power, and at least one of the object-side surface and the image-side surface of the optical lens element including the short-wavelength light absorbing agent is aspheric.

An optical image lens assembly includes at least one optical lens element which is made of a plastic material and includes at least one short-wavelength light absorbing agent. The short-wavelength light absorbing agent is homogeneously mixed with the plastic material. The optical lens element including the short-wavelength light absorbing agent has refractive power, and at least one of the object-side surface and the image-side surface of the optical lens element including the short-wavelength light absorbing agent is aspheric.

A conductive paste composition includes 1 to 10 parts by weight of a binder (A), 2 to 20 parts by weight of an epoxy monomer (B), 1 to 20 parts by weight of a crosslinking agent (C), and 70 to 95 parts by weight of a conductive filler (D). The binder (A) is a reactive oligomer having a siloxane bond as a main skeleton and including a plurality of oxirane rings as an organic group. The epoxy monomer (B) includes an oxirane ring. The total amount of the binder (A), the epoxy monomer (B), the crosslinking agent (C), and the conductive filler (D) is 100 parts by weight.

There is provided an epoxy resin composition containing an epoxy resin, a solid basic compound, and a polythiol. By preparing a mixture 1 by kneading the epoxy resin with the solid basic compound, and then kneading the polythiol therewith, the dissolution of the solid basic compound into the polythiol is rate-limited to ensure the pot life, and due to a catalyst action by the dissolution of the solid basic compound at a time of heating, heat curability in a short time is realized.

There is provided an epoxy resin composition containing an epoxy resin, a solid basic compound, and a polythiol. By preparing a mixture 1 by kneading the epoxy resin with the solid basic compound, and then kneading the polythiol therewith, the dissolution of the solid basic compound into the polythiol is rate-limited to ensure the pot life, and due to a catalyst action by the dissolution of the solid basic compound at a time of heating, heat curability in a short time is realized.

The present invention relates to a vulcanizable elastomeric composition comprising a secondary accelerator that may be used in combination with sulphenamide alone, completely avoiding the use of a guanidine. Moreover, said accelerator promotes dispersion of the silica in the compound and migrates with difficulty in the elastomeric composition itself. The invention also relates to the use of a vulcanization accelerator for said elastomeric composition, to the associated vulcanization process and to a tyre comprising same.

The present invention relates to a vulcanizable elastomeric composition comprising a secondary accelerator that may be used in combination with sulphenamide alone, completely avoiding the use of a guanidine. Moreover, said accelerator promotes dispersion of the silica in the compound and migrates with difficulty in the elastomeric composition itself. The invention also relates to the use of a vulcanization accelerator for said elastomeric composition, to the associated vulcanization process and to a tyre comprising same.

Provided is an antifouling coating composition, which can form a coating film having good hardness and good physical properties and having a wear degree appropriate for expressing a long-term antifouling effect, has a viscosity not being excessively high, and makes it possible to reduce a content of volatile organic compounds, and a polymer-containing composition which is suitable for obtaining the antifouling coating composition. The polymer-containing composition contains a (meth)acryl-based copolymer (A-1), in which the (meth)acryl-based copolymer (A-1) contains a constitutional unit (U11) or a constitutional unit (U12) having carboxylate forming an ionic bond with a divalent metal atom, and has a weight-average molecular weight of 1,000 to 5,000, and the polymer-containing composition has a coating film hardness (Martens hardness) equal to or higher than 2.5 N/mm.sup.2.