Abstract: Provided is a flux that includes a heat-resistant activator having low reactivity with thermosetting resins, and a solder paste in which the flux is used. The flux includes 5 wt % or more and 20 wt % or less of any one of a dimer acid, a trimer acid, a hydrogenated dimer acid obtained by hydrogenating the dimer acid, and a hydrogenated trimer acid obtained by hydrogenating the trimer acid, on in total, of two or more of a dimer acid, a trimer acid, a hydrogenated dimer acid obtained by hydrogenating the dimer acid, and a hydrogenated trimer acid obtained by hydrogenating the trimer acid; 30 wt % or more and 70 wt % or less of a thermosetting resin; and 3 wt % or more and 15 wt % or less of an amine. The solder paste includes solder powder and the flux.

Abstract: Flux formulations that remain pliable and tack-free after deposition are disclosed. In certain examples, the flux comprises a first component and an effective amount of a second component to provide a pliable flux after deposition. The flux may also include activators, plasticizers, surface active agents and other components.

Abstract: Provided is a slow-release delivery vehicle for delivering at least one active ingredient into a film coating, comprising a population of stable, homogeneously-dispersed, porous polymeric or co-polymeric beads having a network of pores, wherein the at least one active ingredient is held within the bead particles and within the network of pores and slowly released by internal flow, and wherein the network of pores is substantially non-collapsible upon removal of the active ingredient. The porous co-polymer bead preparation comprises a continuous aqueous phase solution containing a monomeric mixture of at least one polyvinylaromatic monomer and at least one porogen forming a network that comprising (i) macropores; (ii) mesopores; (iii) micropores; and (iv) gel porosity. Also provided are methods of preparing the porous co-polymer bead preparation; and for its use as a slow-release delivery vehicle.

Abstract: Provided is a slow-release delivery vehicle for delivering at least one active ingredient into a film coating, comprising a population of stable, homogeneously-dispersed, porous polymeric or co-polymeric beads having a network of pores, wherein the at least one active ingredient is held within the bead particles and within the network of pores and slowly released by internal flow, and wherein the network of pores is substantially non-collapsible upon removal of the active ingredient. The porous co-polymer bead preparation comprises a continuous aqueous phase solution containing a monomeric mixture of at least one polyvinylaromatic monomer and at least one porogen forming a network that comprising (i) macropores; (ii) mesopores; (iii) micropores; and (iv) gel porosity. Also provided are methods of preparing the porous co-polymer bead preparation; and for its use as a slow-release delivery vehicle.

Abstract: The present invention relates to a ceramic glaze composition characterized in that it comprises, in percentage by weight in relation to the total weight of the composition: a) from 50 to 90% by weight of a product, which in turn comprises from 10 to 90% by weight of a compound with photocatalytic properties, and from 10 to 90% by weight of at least one natural and/or synthetic material selected from a group of substances with feldspar of feldspathoid structure; b) from 5 to 50% by weight of at least one fluxing additive; and c) from 0.5 to 20% by weight of sodium tripolyphosphate. It will be also an object of this invention the method for preparing said ceramic glaze, as well as its application in ceramic pieces capable of reducing NOxs existing in the air.

Abstract: An aqueous aluminum brazing composition containing an organic binder and a zinc-based flux which prevents the precipitation of the zinc-based flux having a large specific gravity while securing an excellent brazeability. The thixotropic index of the brazing composition is adjusted to 1.01-1.20 by adding a (meth)acrylic acid/(meth)acrylate copolymer emulsion to the brazing composition as a precipitation inhibitor in an amount of 0.03-1.50 wt % of 100 wt % of the brazing composition. Since the (meth)acrylic acid/(meth)acrylate copolymer emulsion is used as the precipitation inhibitor in a specific amount instead of other types of compounds used for a powder-containing paint, such as ultrafine particle silica, poly(meth)acrylate, or polyvinyl alcohol, the precipitation of the zinc-based flux can be prevented without impairing the brazeability.

Abstract: A refractory article for casting of liquid melts, especially steel, fabricated from a mixture of Al.sub.2 O.sub.3, graphite, a flux component, a synthetic resin binder and a metallic powder. The flux component contains a first flux with a melting point from 550.degree. to 900.degree. C. and a second flux that becomes active in the mixture in a temperature ranging from 1350.degree. and 1550.degree. C. The refractory article need not be heated before use, and the carbon contained therein, which determines the strength of the article, is retained for a much longer period during use, so that the article will have a long service life.

Abstract: A solder flux comprises rosin, an activator, an optional surfactant and the dimer of linoleic acid.

Abstract: Cathodic coating for tantalum capacitors containing (a) a mixture of finely divided copper and tin or tin alloy particles dispersed in a solution of (b) organic acid flux, and (c) organic amine in (d) inert organic medium.