Abstract: A lead-free glass material for use in sealing, which has a glass composition being free of lead and exhibits high performance in the range of choices for the material to be sealed, the sealing processability, the sealing quality and the like, has a glass composition including four types of metal oxides of V2O5, ZnO, BaO and P2O5 as essential ingredients.

Abstract: Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3 and V2O5 of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.

Abstract: Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3 and V2O5 of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.

Abstract: Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3 and V2O5 of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.

Abstract: A lead-free glass material for use in sealing, which has a glass composition being free of lead and exhibits high performance in the range of choices for the material to be sealed, the sealing processability, the sealing quality and the like, has a glass composition including four types of metal oxides of V2O5, ZnO, BaO and P2O5 as essential ingredients.

Abstract: Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3 and V2O5 of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.

Abstract: A first dispersion phase is dispersed in a first continuous phase comprising a solidifying component so as to prepare a primary emulsion, and this primary emulsion s ispersed in a second continuous phase as a second dispersion phase so as to prepare a secondary emulsion. The solidifying component in the secondary emulsion is then solidified, and the first dispersion phase is removed leaving pores so as to form porous particles.

Abstract: An image-forming machine equipped with a transfer device means of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed and at a greater distance than the thickness of a transfer material from the image forming member. In a transfer zone, the surface of the transfer material is brought into contact with the surface of the image forming member. In a charge supply zone, the transfer material is contacted with the surface of the charge supply member. In the direction of conveyance of the transfer material, the charge supply zone is positioned downstream of the transfer zone.

Abstract: An image-forming machine equipped with a transfer device of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed, and at a greater distance than the thickness of a transfer material from the image forming member. A voltage of a predetermined polarity is applied to the charge supply member. In a transfer zone, the surface of the transfer material is brought into contact with the surface of the image forming member, while the back of the transfer material is not contacted with the surface of the charge supply member.