Abstract: A photoradical polymerization initiator that is environmentally friendly and composed solely of carbon, hydrogen and oxygen atoms, generating no acid that may cause corrosion during a radical polymerization reaction, and having a high radical polymerization initiation capacity to light having a wavelength of 350 nm to 420 nm. A photoradical polymerizable composition including a radical polymerizable compound and a photoradical polymerization initiator, where the photoradical polymerization initiator is a 1,4-dihydroxy-2-naphthoic acid compound represented by formula (1): where R is a hydrogen atom, a C1-10 alkyl group or a C6-14 aryl group, and X is a hydrogen atom, a C1-10 alkyl group, a C6-14 aryl group, a hydroxy group, a C1-10 alkoxy group or a C6-14 aryloxy group.

Abstract: A method of manufacturing a resistor paste comprising steps of: (a) preparing a basic resistor paste comprising, (i) a conductive powder, (ii) a first glass frit, and (iii) a first organic medium; and (b) preparing a glass paste as a TCR driver comprising, (iv) a second glass frit comprising manganese oxide, and (v) a second organic medium, (c) adding the glass paste to the basic resistor paste to obtain a resistor paste with a desired TCR.

Abstract: A method of manufacturing a resistor paste comprising steps of: (a) preparing a basic resistor paste comprising, (i) a conductive powder, (ii) a first glass frit, and (iii) a first organic medium; and (b) preparing a glass paste as a TCR driver comprising, (iv) a second glass frit comprising manganese oxide, and (v) a second organic medium, (c) adding the glass paste to the basic resistor paste to obtain a resistor paste with a desired TCR.

Abstract: A substantially lead-free thick-film resistor paste composition is disclosed including a resistor composition dispersed in an organic vehicle. The resistor composition includes (a) RuO2 conductive material; (b) an ?-oxide selected from CuO, Na2O, K2O, Li2O and combinations thereof (c) a borosilicate glass composition having: (i) B2O3, (ii) SiO2, (iii) a ?-oxide selected from BaO, CaO, ZnO, SrO, MgO and combinations thereof, and optionally including any of (iv) P2O5, (v) ZrO2 and (vi) Al2O3. The CuO ?-oxide and TiO2, Ta2O5, Nb2O5 ?-oxide(s) and combinations thereof are present in the paste composition either separately, or in the borosilicate glass composition, or both. The Na2O, K2O, Li2O ?-oxide(s) and combinations thereof are present in the borosilicate glass composition. TCR values in the range of +/?100 ppm/° C. and R values of 100 ohms to 10 mega-ohms per square are obtained by resistors made from the paste composition.

Abstract: This invention relates to a composition using a ruthenium oxide and/or a polynary ruthenium oxide as conducting components and using a Cu containing glass frit.

Abstract: A substantially lead-free thick-film resistor paste composition is disclosed including a resistor composition dispersed in an organic vehicle. The resistor composition includes (a) RuO2 conductive material; (b) an ?-oxide selected from CuO, Na2O, K2O, Li2O and combinations thereof (c) a borosilicate glass composition having: (i) B2O3, (ii) SiO2, (iii) a ?-oxide selected from BaO, CaO, ZnO, SrO, MgO and combinations thereof, and optionally including any of (iv) P2O5, (v) ZrO2 and (vi) Al2O3. The CuO ?-oxide and TiO2, Ta2O5, Nb2O5 ?-oxide(s) and combinations thereof are present in the paste composition either separately, or in the borosilicate glass composition, or both. The Na2O, K2O, Li2O ?-oxide(s) and combinations thereof are present in the borosilicate glass composition. TCR values in the range of +/?100 ppm/° C. and R values of 100 ohms to 10 mega-ohms per square are obtained by resistors made from the paste composition.

Abstract: This invention relates to a composition using a ruthenium oxide and/or a polynary ruthenium oxide as conducting components and using a Cu containing glass frit.