Abstract: A binder composition for a non-aqueous secondary battery negative electrode contains a particulate binder and an aromatic ring-fused nitrogen-containing five-membered ring compound or an aromatic-substituted nitrogen-containing five-membered ring compound. The particulate binder includes at least an aromatic vinyl monomer unit and an aliphatic conjugated diene monomer unit. The aromatic ring-fused nitrogen-containing five-membered ring compound or the aromatic-substituted nitrogen-containing five-membered ring compound is an anionic aromatic compound having 4n+2 ring ? electrons (n is an integer of 1 or more). The content of the anionic aromatic compound is more than 1 part by mass and less than 10 parts by mass per 100 parts by mass of the particulate binder.
Abstract: A binder composition for a non-aqueous secondary battery contains water-soluble macromolecules, water, and a particulate polymer formed of a polymer that includes a block region formed of an aromatic vinyl monomer unit. Surface acid content A of the particulate polymer is 0.05 mmol/g or more, acid content B in an aqueous phase of the binder composition per 1 g of the particulate polymer is not less than 0.03 mmol/g and not more than 0.80 mmol/g, and a ratio (A/B) of the surface acid content A of the particulate polymer and the acid content B in the aqueous phase of the binder composition is not less than 0.5 and not more than 5.0.
Abstract: A composition for an electrochemical device functional layer comprising a particulate polymer, a binder, and heat-resistant fine particles. The particulate polymer has a volume average particle diameter of 1.0 ?m or more and 10.0 ?m or less, and has a structure in which an intermediate portion which has the lowest glass transition temperature is sandwiched by an inner core portion and an outer shell portion each having a glass transition temperature higher than that of the intermediate portion.
Abstract: To provide hollow particles having a high void ratio and excellent pressure resistance. Hollow particles which comprise a shell containing a resin and a hollow portion surrounded by the shell, wherein a void ratio is 60% or more; wherein a volume average particle diameter is from 10 ?m to 50 ?m; wherein the shell contains, as the resin, a polymer in which from 70 parts by mass to 100 parts by mass of a crosslinkable monomer unit is contained in 100 parts by mass of all monomer units, and the crosslinkable monomer unit contains a bifunctional crosslinkable monomer unit derived from a bifunctional crosslinkable monomer and a trifunctional or higher-functional crosslinkable monomer unit derived from a trifunctional or higher-functional crosslinkable monomer; and wherein, when observed in plan view, a percentage of particles having a dent with a size of 5% to 50% of the particle diameter, is 10% or less.
Abstract: A binder composition for a secondary battery electrode contains a polymer that includes a nitrile group-containing monomer unit, an aromatic vinyl monomer unit, and a linear alkylene structural unit but does not include a hydrophilic group-containing monomer unit.
Abstract: A binder composition for a secondary battery electrode contains a polymer that includes a nitrile group-containing monomer unit, an aromatic vinyl monomer unit, and a linear alkylene structural unit and that has a residual mercaptan content, by mass, of not less than 1 ppm and not more than 50 ppm.
Abstract: A method for producing a modified conjugated diene polymer latex, includes: a modification step of obtaining a modified conjugated diene polymer by contacting a conjugated diene polymer with a radical generator; and an emulsification step of emulsifying the modified conjugated diene polymer in water, wherein the modification step includes modifying the conjugated diene polymer on a condition where the total amount of an organic solvent and water used is 20 parts by weight or less with respect to 100 parts by weight of the conjugated diene polymer.
Abstract: A panel connected body includes a plurality of flat panels arranged in a matrix of m rows and n columns, where m?3 and n?3; and a plurality of row-direction connection portions and column-direction connection portions which connect together panels that are adjacent in a row direction and column direction, respectively. A first type row satisfying relationships D1?2L and Dy?Dy?1?2L and a second type row satisfying relationships Dn?2L and Dy?Dy+1+2L are alternately included, where Dy is a length along the column direction of the column-direction connection portions in a y-th column, and L is a thickness of the panels. The relationship E?WC?L is satisfied, where WC is a length along the column direction of the panels and E is a length along the column direction of the row-direction connection portions.
Type:
Grant
Filed:
March 30, 2023
Date of Patent:
March 26, 2024
Assignee:
ZEON CORPORATION
Inventors:
Yuki Hayashi, Kiyoshige Kojima, Masayoshi Yoshida
Abstract: A non-aqueous secondary battery includes a positive electrode, a negative electrode, an electrolyte solution, and a separator. The positive electrode includes a current collector and a positive electrode mixed material layer formed on the current collector. The positive electrode mixed material layer contains a positive electrode active material, a conductive material, and a polymer A. The polymer A includes a nitrile group-containing monomer unit and either or both of a conjugated diene monomer unit and an alkylene structural unit. The content of the polymer A in the positive electrode mixed material layer is not less than 0.01 mass % and not more than 8 mass %. The separator includes a separator substrate and a porous membrane formed on the separator substrate. The porous membrane contains non-conductive particles and a polymer B.
Abstract: Provided is a binder composition for an electrochemical device that can stably disperse a conductive carbon material and that can cause an electrochemical device to display excellent output characteristics and high-voltage cycle characteristics. The binder composition for an electrochemical device contains a polymer including a nitrile group-containing monomer unit and an alkylene structural unit and a group 13 element and satisfies a relationship formula: 0.1?M/I?150 (in the formula, I is the iodine value [g/100 g] of the polymer and M is the concentration [ppm] of the group 13 element).
Abstract: A dispersant composition for an electrochemical device contains a polymer including a nitrile group-containing monomer unit and an alkylene structural unit. Upon measurement of the polymer contained in the composition by dynamic light scattering, a value (A) detected for volume-average particle diameter D50 is not less than 50 nm and not more than 800 nm, and one or more peaks are detected in a particle diameter range of not less than 5 ?m and not more than 30 ?m.
Abstract: Provided is hollow resin particles having higher compressive strength and more excellent heat insulating properties and heat resistance than before. The hollow resin particles each having one or two or more hollow portions, wherein a number average particle diameter is from 0.1 ?m to 9.0 ?m, a void ratio is from 70% to 99%, and an amount of the volatile organic compound contained is 5% by mass or less.
Abstract: A method for manufacturing a foam rubber by foaming a polymer latex is provided, wherein the polymer latex used has a solids content of 60.0 wt % or more, has a volume particle size distribution where the volume cumulative particle size d10 is more than 140 nm, and comprises 0.001 to 1.0 part by weight of antifoaming agent relative to 100 parts by weight of polymer in the polymer latex.
Abstract: Provided is a binder composition for a non-aqueous secondary battery containing: a particulate polymer formed of a block copolymer including an aliphatic conjugated diene monomer unit and a block region formed of an aromatic vinyl monomer unit; at least one saturated hydrocarbon selected from the group consisting of a chain alkane having a carbon number of not less than 5 and not more than 8 and a cycloalkane having a carbon number of not less than 5 and not more than 8; and water. The content of the saturated hydrocarbon is not less than 0.001 parts by mass and not more than 0.1 parts by mass per 100 parts by mass of the particulate polymer.
Abstract: A binder composition contains an organic solvent and a binder that includes a particulate polymer A and a highly soluble polymer B. The particulate polymer A includes an ethylenically unsaturated acid monomer unit in a proportion of not less than 1.0 mass % and not more than 10.0 mass % and a (meth)acrylic acid ester monomer unit in a proportion of not less than 30.0 mass % and not more than 98.0 mass %. The particulate polymer A includes two particulate polymers A1 and A2 having different volume-average particle diameters. The volume-average particle diameters D50A1 and D50A2 of these particulate polymers A1 and A2 satisfy a formula: D50A2>D50A1?50 nm.
Abstract: A modified peptide or a modified polypeptide has the amino acid sequence of Thr-Val-Asp-Ser-Cys-Leu-Thr (SEQ ID NO: 1) and adhesiveness to a norbornene-based polymer. A ratio of the total number of amino acids constituting the modified peptide or the modified polypeptide to the number of oligopeptides consisting of the amino acid sequence of SEQ ID NO: 1 contained in the modified peptide or the modified polypeptide is 7 or more and 80 or less. The number of oligopeptides consisting of the amino acid sequence of SEQ ID NO: 1 is 1.
Abstract: Disclosed is a method of joining resin members that includes: forming a coating layer by applying a solvent to a surface of a resin member, the solvent allowing the thermoplastic resin to have a degree of swelling of 1.05 or more and 3.00 or less when the thermoplastic resin is swollen by the solvent, and having a boiling point B° C. of R ° C. or lower where R ° C. is a glass transition temperature of the thermoplastic resin; laminating resin members one another via the coating layer to form a laminate; and pressing the laminate in the lamination direction while heating at a heating temperature H ° C. that is equal to or lower than R ° C.
Abstract: Provided is a copolymer that can be favorably used as a main chain scission-type positive resist that has excellent heat resistance and that can form a resist pattern having excellent resolution and clarity. The copolymer includes a monomer unit (A) represented by the following formula (I) and a monomer unit (B) represented by the following formula (II), and has a molecular weight distribution of 1.7 or less. In the formulae, L is a single bond or a divalent linking group, Ar is an optionally substituted aromatic ring group, R1 is an alkyl group, R2 is an alkyl group, a halogen atom, or a haloalkyl group, p is an integer of not less than 0 and not more than 5, and in a case in which more than one R2 is present, each R2 may be the same or different.
Abstract: A dielectric elastomer drive system A1 includes: a dielectric elastomer drive unit 1 provided with a dielectric elastomer layer 11 and a pair of electrode layers 12 flanking the dielectric elastomer layer 11; a power supply unit 5 configured to apply voltage to the dielectric elastomer drive unit 1; and a charge removal unit 2 configured to remove the charge stored in the dielectric elastomer drive unit 1. The configuration contributes to improving responsiveness.
Abstract: A method for producing a molded article including a washing step of washing a molded article with hot water at 40 to 100° C., the molded article being prepared from a latex composition containing a conjugated diene polymer latex and a xanthogen compound.