Process for producing powdered polycyanoacrylate polymer by charging a reaction vessel with an aqueous mist, dripping a 2-cyanoacrylate into the reaction vessel, allowing the resulting reaction mass (polycyanoacrylate polymer) to cool, removing the polycyanoacrylate polymer from the reaction vessel, drying it, and pulverizing the dry solid into a powder. Powdered polycyanoacrylate polymer having a particle diameter in the range of from 1 to 200 microns. The particle size and shape herein contribute to uniform distribution of fumes during fingerprint capture. A high level of accuracy in fingerprint detection is provided among three distinct levels which include: (a) first level detection from ridge flow patterns such as whorl or loop; (b) second level detection from ridge flow singularities such as ridge endings and bifurcations; (c) and third level detection from pore configuration.

Novel antiviral means is disclosed. The antiviral agent of the present invention comprises as an effective ingredient particles having a particle diameter of not more than 5 m, wherein said particles are polymer particles whose repeat unit comprises a structure represented by a particular general formula, and wherein said particles do not contain an antiviral active component. The polymer particles are preferably cyanoacrylate polymer particles. The antiviral agent of the present invention shows adhesiveness to the surface (especially envelope) of virus particles, and destroys a normal virus particle structure to reduce or eliminate infectivity of the virus particles. Sanitary articles such as masks comprising the antiviral agent of the present invention can exert an excellent effect on prevention of infection with viruses such as influenza virus that occurs through droplet infection or airborne infection.

Novel antiviral means is disclosed. The antiviral agent of the present invention comprises as an effective ingredient particles having a particle diameter of not more than 5 m, wherein said particles are polymer particles whose repeat unit comprises a structure represented by a particular general formula, and wherein said particles do not contain an antiviral active component. The polymer particles are preferably cyanoacrylate polymer particles. The antiviral agent of the present invention shows adhesiveness to the surface (especially envelope) of virus particles, and destroys a normal virus particle structure to reduce or eliminate infectivity of the virus particles. Sanitary articles such as masks comprising the antiviral agent of the present invention can exert an excellent effect on prevention of infection with viruses such as influenza virus that occurs through droplet infection or airborne infection.

The invention relates to a curable composition having an electron deficient olefin.

The present invention is a composition for detecting a latent fingerprint characterized in that the composition includes a 2-cyanoacrylate and a silicone oil, and that a content of the silicone oil is in a range from 700 to 9000 parts by mass based on 100 parts by mass of the 2-cyanoacrylate. The composition may further include a fluorescent dye, a stabilizer, etc.

The present invention is a composition for detecting a latent fingerprint characterized in that the composition includes a 2-cyanoacrylate and a silicone oil, and that a content of the silicone oil is in a range from 700 to 9000 parts by mass based on 100 parts by mass of the 2-cyanoacrylate. The composition may further include a fluorescent dye, a stabilizer, etc.

This invention relates to cyanoacrylate-containing compositions, which when cured provide improved bonding performance on aluminum substrates.

The present invention is a curable composition characterized by including a 2-cyanoacrylate and a particle containing titanium oxide and silicon oxide. The preferable content of the particle is in a range from 0.1 to 10.0 parts by mass based on 100 parts by mass of the 2-cyanoacrylate.

The present invention is a curable composition characterized by including a 2-cyanoacrylate and a particle containing titanium oxide and silicon oxide. The preferable content of the particle is in a range from 0.1 to 10.0 parts by mass based on 100 parts by mass of the 2-cyanoacrylate.

Novel antiviral means is disclosed. The antiviral agent of the present invention comprises as an effective ingredient particles having a particle diameter of not more than 5 m, wherein said particles are polymer particles whose repeat unit comprises a structure represented by a particular general formula, and wherein said particles do not contain an antiviral active component. The polymer particles are preferably cyanoacrylate polymer particles. The antiviral agent of the present invention shows adhesiveness to the surface (especially envelope) of virus particles, and destroys a normal virus particle structure to reduce or eliminate infectivity of the virus particles. Sanitary articles such as masks comprising the antiviral agent of the present invention can exert an excellent effect on prevention of infection with viruses such as influenza virus that occurs through droplet infection or airborne infection.