A dispersant for a lithium ion battery and a preparation method thereof, a positive slurry, and a lithium ion battery are provided. The dispersant includes a structural unit A derived from a solvophilic monomer, a structural unit B derived from a conjugated diene monomer, and a structural unit C derived from a high-adhesion monomer. The solvophilic monomer includes one or both of N-vinylpyrrolidone and an acrylamide monomer. The high-adhesion monomer includes one or both of an unsaturated nitrile monomer and an acrylate monomer.

A waterproof architectural element comprising an elongated panel member composed of compressed fibrous material having a first planar surface and an opposed second planar surface. At least one elongated cellulose layer is composed of Kraft paper having paper basis weight between 30 and 90 pounds and an average thickness between 0.003 and 0.009 inches. The elongated substrate has a first planar face and an opposed second planar face. A polymeric layer overlies at least a portion of the first planar face of the elongated substrate and comprises a polymeric blend of between 50 and 80 wt. % styrene butadiene copolymer and 0.2 and 3 wt. % of a cellulose ether compound. The cellulose ether compound comprises hydrogen or an alkyl group selected from the group consisting of methyl, ethyl, hydroxyethyl, hydroxypropyl carboxymethyl, hydroxyethyl methyl, hydroxypropyl and between 30 and 50 wt. % calcium carbonate and water.

A waterproof architectural element comprising an elongated panel member composed of compressed fibrous material having a first planar surface and an opposed second planar surface. At least one elongated cellulose layer is composed of Kraft paper having paper basis weight between 30 and 90 pounds and an average thickness between 0.003 and 0.009 inches. The elongated substrate has a first planar face and an opposed second planar face. A polymeric layer overlies at least a portion of the first planar face of the elongated substrate and comprises a polymeric blend of between 50 and 80 wt. % styrene butadiene copolymer and 0.2 and 3 wt. % of a cellulose ether compound. The cellulose ether compound comprises hydrogen or an alkyl group selected from the group consisting of methyl, ethyl, hydroxyethyl, hydroxypropyl carboxymethyl, hydroxyethyl methyl, hydroxypropyl and between 30 and 50 wt. % calcium carbonate and water.

A method of producing a powder mass for a lithium battery, the method comprising: (a) providing a solution containing a sulfonated elastomer dissolved in a solvent or a precursor in a liquid form or dissolved in a solvent; (b) dispersing a plurality of particles of a cathode active material in the solution to form a slurry; and (c) dispensing the slurry and removing the solvent and/or polymerizing/curing the precursor to form the powder mass, wherein the powder mass comprises multiple particulates and at least a particulate comprises one or a plurality of particles of a cathode active material being encapsulated by a thin layer of sulfonated elastomer having a thickness from 1 nm to 10 μm, a fully recoverable tensile strain from 2% to 800%, and a lithium ion conductivity from 10.sup.−7 S/cm to 5×10.sup.−2 S/cm at room temperature.

A method of producing a powder mass for a lithium battery, the method comprising: (a) providing a solution containing a sulfonated elastomer dissolved in a solvent or a precursor in a liquid form or dissolved in a solvent; (b) dispersing a plurality of particles of a cathode active material in the solution to form a slurry; and (c) dispensing the slurry and removing the solvent and/or polymerizing/curing the precursor to form the powder mass, wherein the powder mass comprises multiple particulates and at least a particulate comprises one or a plurality of particles of a cathode active material being encapsulated by a thin layer of sulfonated elastomer having a thickness from 1 nm to 10 μm, a fully recoverable tensile strain from 2% to 800%, and a lithium ion conductivity from 10.sup.−7 S/cm to 5×10.sup.−2 S/cm at room temperature.

A multiply fused, conjugated, porphyrin polymer film coated on a substrate, wherein the porphyrin monomer repeating units are di-meso-substituted porphyrins; and including a metal cation selected from the group consisting of Mg(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Ru(II), Pd(II), Ag(II), Pt(II) and Au(III), or mixtures thereof; the porphyrin units are multiply fused, including doubly-fused and/or triply-fused; including a substituent R attached to the meso position of the porphyrin monomer, the substituent R being an aromatic group presenting at least one free ortho position among; at least one of the two free ortho positions of the aromatic substituent is fused to the 13 position of the porphyrin monomer, the porphyrin polymer film being a porous porphyrin polymer film with mean pore diameters within the range of from 2 nm to 100 nm, and exhibiting a density not greater than 2 g/cm.sup.3. The invention also relates to a process for obtaining the multiply fused porphyrin polymer film coated on a substrate.

A multiply fused, conjugated, porphyrin polymer film coated on a substrate, wherein the porphyrin monomer repeating units are di-meso-substituted porphyrins; and including a metal cation selected from the group consisting of Mg(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Ru(II), Pd(II), Ag(II), Pt(II) and Au(III), or mixtures thereof; the porphyrin units are multiply fused, including doubly-fused and/or triply-fused; including a substituent R attached to the meso position of the porphyrin monomer, the substituent R being an aromatic group presenting at least one free ortho position among; at least one of the two free ortho positions of the aromatic substituent is fused to the 13 position of the porphyrin monomer, the porphyrin polymer film being a porous porphyrin polymer film with mean pore diameters within the range of from 2 nm to 100 nm, and exhibiting a density not greater than 2 g/cm.sup.3. The invention also relates to a process for obtaining the multiply fused porphyrin polymer film coated on a substrate.

Multi-stage polymeric particles are prepared as a water-borne emulsion, including a first-formed lower Tg soft stage and a second-formed higher Tg hard stage. The polymeric particles include, in both stages: one or more free radical polymerizable ethylenically unsaturated monomers; 0 to 3 wt % of free radical polymerizable surfactant monomer; 0 to 4 wt % of free radical poly-merizable monomer having a beta dicarbonyl functionality; 0 to 2 wt % of monomer selected from acrylamide, diacetone acrylamide, 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylates, and hydroxybutyl (meth)acrylates and mixtures thereof; 0-1.9 wt % of free radical polymerizable polyethylenically unsaturated monomers; 0.1 to 1.9% of free radical polymerizable monomer containing phosphorus acid or a salt thereof in the first stage, and 0.1 to 5 wt % of a free radical polymerizable monomer containing phosphorus acid or salt thereof in the second stage. Multi-stage polymeric-particle-based-resin is formulated into direct to metal coatings, having good block, corrosion and excellent humidity resistance.

Multi-stage polymeric particles are prepared as a water-borne emulsion, including a first-formed lower Tg soft stage and a second-formed higher Tg hard stage. The polymeric particles include, in both stages: one or more free radical polymerizable ethylenically unsaturated monomers; 0 to 3 wt % of free radical polymerizable surfactant monomer; 0 to 4 wt % of free radical poly-merizable monomer having a beta dicarbonyl functionality; 0 to 2 wt % of monomer selected from acrylamide, diacetone acrylamide, 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylates, and hydroxybutyl (meth)acrylates and mixtures thereof; 0-1.9 wt % of free radical polymerizable polyethylenically unsaturated monomers; 0.1 to 1.9% of free radical polymerizable monomer containing phosphorus acid or a salt thereof in the first stage, and 0.1 to 5 wt % of a free radical polymerizable monomer containing phosphorus acid or salt thereof in the second stage. Multi-stage polymeric-particle-based-resin is formulated into direct to metal coatings, having good block, corrosion and excellent humidity resistance.

A conductive material dispersion liquid for an electrochemical device contains a conductive material, a dispersant, and a solvent. The conductive material dispersion liquid for an electrochemical device has a zeta potential absolute value within a range of 30 mV or less, the dispersant is a polymer including a nitrile group-containing monomer unit and an alkylene structural unit, and the solvent is an organic solvent.