242 results about "Copolymer composition" patented technology

The invention relates to the technical field of polymer composite materials, and discloses a nano-ceramic-based composite insulating coating and a preparation method thereof, and the coating is prepared from a composite resin matrix, a composite functional ceramic filler, a double-reactivity organosilicon linker and an initiator. Wherein the composite resin matrix is composed of vinyl-terminated polydimethylsiloxane and a vinyl ether functionalized fluorocarbon copolymer, and a soft and rigid interpenetrating network structure is formed. The composite functional ceramic filler is prepared from needle-shaped silicon nitride, flaky hexagonal boron nitride, nano silicon dioxide, nano cerium oxide and nano barium titanate. According to the invention, a chemical bonding interface is constructed between the inorganic filler and the organic resin, and the synergistic effect of the composite matrix and the multifunctional filler is optimized, so that the coating has excellent adhesive force, flexibility and thermal shock resistance, obtains high volume resistivity and breakdown strength, and meets the insulation protection requirements under harsh working conditions.

A crosslinked rubber article according to the present disclosure contains a crosslinked product of a fluorine-containing copolymer. When the crosslinked rubber article is subjected to a sputtering treatment by a method of test 1, the arithmetic average height Sa of the surface of the crosslinked rubber article after the sputtering treatment is greater than 1.6 μm, and the aspect ratio Str of the surface of the crosslinked rubber article after the sputtering treatment is 0.90 or less. Test 1: A crosslinked rubber article is placed on a sample table of an ion sputtering apparatus, and a distance between a placement surface of the crosslinked rubber article in the sample table and a target made of platinum is set to 35 mm. Then, the crosslinked rubber article is subjected to a sputtering treatment by setting the degree of vacuum in a sample chamber of the ion sputtering apparatus to 6 kPa and then performing discharge for 30 sec at a target additional current value of 25 mA.

A crosslinked rubber article comprising a crosslinked product of a fluorine-containing copolymer having a unit based on a monomer having a nitrile group and a unit based on tetrafluoroethylene, wherein when the 60°-specular gloss of the crosslinked rubber article surface is measured at 10 different sites, the minimum value of the 60°-specular gloss at the 10 different sites is 1.0 to 50.0.

The invention discloses a binary flooding strong emulsifying active agent based on a nano silicon dioxide grafted anionic-nonionic structure as well as a preparation method and application of the binary flooding strong emulsifying active agent, and belongs to the field of active agents. The binary flooding strong emulsifying active agent based on the nano silicon dioxide grafted anionic-nonionic structure comprises a nano silicon dioxide core, an alkyl chain hydrophobic middle layer and a sulfonate-polyether bifunctional outer layer, the alkyl chain hydrophobic intermediate layer is grafted to the surface of SiO2 through a silane coupling agent by a Si-O-Si covalent bond; and the sulfonate-polyether bifunctional outer layer is composed of a sulfonate group-SO3H and a polyoxypropylene-polyoxyethylene PO-b-EO block copolymer. According to the technology, a traditional physical compounding mode is broken through, a sulfonate group and a polyether chain segment are accurately anchored to a nano-carrier through chemical bonds, molecular-level synergy of anion and nonionic functions is achieved, and the system is endowed with ultralow interfacial tension, strong emulsifying capacity and long-acting stability while the consumption of sulfonate is reduced.

The invention relates to a thermoplastic molding composition (P) comprising: (A) thermoplastic polymer composition (A) comprising: (A-1) 10 to 50 wt.-% of graft copolymer (A-1), (A-2) 1 to 50 wt.-%, of thermoplastic polymer matrix (A-2) based on one or more vinylaromatic copolymers, (A-3) 20 to 50 wt.-%, of polymerized alkyl methacrylate component (A-3), and (A-4) 0 to 45 wt.-% of comonomer which is copolymerized with the at least one polymerized alkyl methacrylate component (A-3), where the sum of (A-1), (A-2), (A-3) and optional comonomers (A-4) is 83.2 to 99.8 wt.-%; (B) a hindered amine light stabilizer composition (B), comprising at least two of substances (B-1) to (B-3): (B-1) 0 to 0.9 wt.-%, of at least one hindered amine light stabilizer having a dipiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the dipiperidine structure (B-2) 0 to 0.9 wt.-%, of a hindered amine light stabilizer mixture having a monopiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the monopiperidine structure, and (B-3) 0 to 2 wt.-%, of at least one hindered amine light stabilizer having a polymeric structure comprising piperidine groups with at least one alkyl group at each of the 2 and 6 positions of the piperidine groups (C) 0 to 5 wt.-%, of one or more further additives (C), different from (B); and (D) 0 to 10 wt.-%, of colorants, dyes and / or pigments (D), different from (C); wherein the constituents (A) to (D) sum up to 100 wt.-% of the molding composition (P).

The present disclosure relates to a composition including a specific metallocene-catalysed multimodal polyethylene copolymer and a polyethylene wax, to the use of the composition in film applications and to a film including the composition.

Silicone oil compositions contain a first copolymer composition having a first refractive index and a second copolymer composition having a second refractive index. The silicone oil compositions can be used in an enclosed cavity within a lens (e.g., intraocular lens) to match the refractive index of the refractive optical element in the lens.

This invention relates to a styrene-butadiene copolymer composition, its preparation method, and its applications, belonging to the field of polymer materials technology. The styrene-butadiene copolymer composition of this invention comprises the following components in parts by weight: 40-65 parts of styrene-butadiene copolymer, 9-34 parts of styrene-methyl methacrylate copolymer A, 20-40 parts of heat-resistant modifier, 5-10 parts of phase regulator, and 0.5-5 parts of haze regulator. This styrene-butadiene copolymer composition not only possesses good heat resistance but also high transparency and is easy to demold.

To provide a 3-methyl-1-butene copolymer and a 3-methyl-1-butene copolymer composition which can suppress thermal deterioration during processing while having excellent heat resistance and have both toughness and strength, and to provide a method for producing the 3-methyl-1-butene copolymer.SOLUTION: There is provided 3-methyl-1-butene copolymer which contains 3-methyl-1-butene copolymer resin, and has a melting point of 265.0 to 290.0°C, wherein breaking elongation X (%) and yield strength Y (MPa) measured in accordance with JIS K7161-1:2014 satisfy the following formula (1): Y>(-X / 16)+42.5...Formula (1).SELECTED DRAWING: None

The present invention provides a multimodal ethylene copolymer composition made of a copolymer of ethylene and at least two α-olefin comonomers having 3 to 10 carbon atoms, wherein the composition comprises at least low and high molecular weight polymer fractions and having specified properties in terms of molecular weight, molecular weight distribution, density, and melt flow properties in terms of MFR2, MFR5, and MFR21, and a film made therefrom, which provides improved mechanical characteristics especially in terms of dart drop impact strength and tensile modulus.

The present invention relates to: a copolymer composition comprising a first copolymer comprising an acrylic acid-based monomer unit and an acrylamide-based monomer unit, and a second copolymer comprising a vinyl pyrrolidone-based unit, an acrylate-based monomer unit comprising a hydroxyl group, and an acrylamide-based monomer unit; and a negative electrode slurry, a negative electrode, and a secondary battery comprising the copolymer composition.

This invention relates to a method for producing a stable copolymer composition, comprising adding an organic solvent, an alkyl-alkoxysilane and / or a C1-C9 alcohol, a monomer, and a free radical initiator to a reactor. The copolymer composition is based on a vinyl-branched ester polymer modified with a vinylsilane and a dehydrating agent. The copolymer composition can be formulated to a desired viscosity, can be applied using conventional techniques, and can be optimized for curing as a single-package system at room temperature in the presence of a suitable catalyst.

A laminate containing: a layer (I) mainly composed of an acrylic resin; a layer (II) mainly composed of a polyolefin resin; and an adhesive layer (III) provided between the layer mainly composed of an acrylic resin and the layer mainly composed of a polyolefin resin,wherein the adhesive layer (III) is formed from an adhesive component mainly composed of a hydrogenated conjugated diene block copolymer having two or more polymer blocks selected from the group consisting of a polymer block (A) mainly composed of vinyl aromatic monomer units, a polymer block (B) mainly composed of conjugated diene monomer units, and a polymer block (C) having vinyl aromatic monomer units and conjugated diene monomer units, in which unsaturated bonds in conjugated diene monomer units are hydrogenated, andthe hydrogenated conjugated diene block copolymer satisfies predetermined requirements.

There is provided an inorganic solid electrolyte-containing composition containing an inorganic solid electrolyte, a polymer binder, and a dispersion medium, in which the polymer binder includes a polymer binder consisting of a fluorine-based copolymer which contains a vinylidene fluoride constitutional component and a hexafluoropropylene constitutional component of 21% to 65% by mole and in which a tensile fracture strain is 500% or more, and the adsorption rate of this polymer binder with respect to the inorganic solid electrolyte is less than 60%. There are also provided a sheet for an all-solid state secondary battery and an all-solid state secondary battery, in which this inorganic solid electrolyte-containing composition is used, and manufacturing methods for a sheet for an all-solid state secondary battery, and an all-solid state secondary battery.

The present invention addresses the problem of obtaining a cured product which has excellent diluent solubility and in which the contact resistance of an electrode after ashing is suppressed to be low. A resin composition containing the following components (a) to (c), the component (a) having a diamine residue represented by formula (1) in an amount of from 1 mol% to 80 mol% (inclusive) with respect to 100 mol% of all diamine residues contained in the skeleton of the resin of the component (a), and the component (c) having a diamine residue represented by formula (2) in an amount of from 1 mol% to 80 mol% (inclusive) with respect to 100 mol% of all diamine residues contained in the skeleton of the resin of the component (a). Component (a): at least one resin selected from the group consisting of polyimide precursors, polyimides, polybenzoxazole precursors, polybenzoxazoles, and copolymers thereof Component (b): a photosensitizer. Component (c): a solvent (in formula (1), R1-R8 each independently represent an alkyl group having 1-4 carbon atoms or a hydrogen atom, X each independently represents-CH2-,-C (CH3) 2-,-O-,-S-,-SO2-or a single bond, and p, q, r and s each independently represent an integer of 0 or 1 and represent a bonded part).

Disclosed herein are amine containing copolymer compositions based on free radical and controlled radical polymerization of monomer compositions including an amine-derivatized alpha-methyl styrene (ADAMS) monomer according to structure (I): with k, R, R1, and R2 defined herein with one or more monomers selected from the group consisting of optionally substituted acrylates, methacrylates, acrylamides, methacrylamides, acrylonitriles, methacrylonitriles, vinyl ethers, N-vinyl amides, or combinations thereof. Further disclosed herein are methods of making and methods for using such copolymer compositions.

The object of the present invention is to provide a polyester block copolymer resin composition that exhibits excellent flexibility and transparency, has excellent abrasion resistance, and can be processed into molded articles such as injection molded articles, extruded articles, films, fibers, nonwoven fabrics, and foams. [Solution] The present invention provides a polyester block copolymer resin composition comprising 100 parts by mass of a polyester block copolymer (A) containing 10 to 50% by mass of a high-melting-point crystalline polymer segment (a) consisting of crystalline aromatic polyester units and 90 to 50% by mass of a low-melting-point polymer segment (b) consisting of aliphatic polyether units and / or aliphatic polyester units, 0.01 to 3.0 parts by mass of an alkali metal salt of an aliphatic carboxylic acid (B), and / or 0.2 to 20 parts by mass of an ethylene copolymer (C) having a carboxylic acid metal base in its side chain, and 0.01 to 5.0 parts by mass of a modified wax (D).

The hydrogenated block copolymer composition for the surface exhibits high abrasion resistance and mechanical properties, while also providing a laminate that shows high adhesive strength even when laminated with an olefin-based resin for the substrate at low temperatures. [Solution] At least two types of hydrogenated block copolymers (a) and hydrogenated block copolymers (b), an olefin resin (c-1), a thermoplastic resin (d), a softening agent (e), A hydrogenated block copolymer composition containing, and an olefin resin for the base material (c-2), A laminate of [something].

To provide a copolymer composition containing an ethylene / α - olefin / non-conjugated polyene copolymer which is excellent in physical properties, processability and the like of a molded article to be obtained, a method for producing the same, a foamed molded article obtained from the copolymer composition and a method for producing the same, and a crosslinked molded article and a method for producing the same.SOLUTION: A copolymer composition containing a copolymer (S) having a structural unit derived from ethylene (A), a structural unit derived from an α - olefin (B) having 3 to 20 carbon atoms, and a structural unit derived from a specific non-conjugated polyene (C) and satisfying requirements (i) and (ii), a hydrosilyl group-containing compound (Y) that is an organohydrogenpolysiloxane having at least one silicon atom-bonded aralkyl group and at least two silicon atom-bonded hydrogen atoms in a molecule, and a platinum-based catalyst for hydrosilyl crosslinking.SELECTED DRAWING: None

A thermoplastic molding composition P comprising: AB: at least one graft copolymer composition AB, consisting of at least one thermoplastic copolymer A and at least one graft copolymer B; C: at least one UV absorber as component C; and D: optionally at least one further additive as component D, wherein the UV absorber component C comprises at least one organic or inorganic component having an UV absorption at least in a wavelength range ≤380 nm; and wherein the UV absorber component C is at least partially selected from at least one black pigment, at least one white pigment and / or at least one dye having an UV absorption at least in a wavelength range ≤380 nm.

This invention provides polypeptide ester etheramine random polymers and methods for preparing them. [Solution] The polypeptide ester etheramine random polymer of the present invention is a random copolymer of an amino acid monomer and an alkylene oxide. In the present invention, copolymerization of an amino acid monomer and an alkylene oxide monomer is achieved by a one-step method of mixed monomers using a transition metal or rare earth metal salt as a catalyst. The random copolymer product has a controllable molecular weight, a narrow molecular weight distribution, and an adjustable copolymer composition. Furthermore, the random copolymer product has excellent solubility, is biodegradable, easily modifiable with functional groups, has excellent processability, and has excellent biocompatibility, making it promising for future applications in the biomedical field.

Provided is an EVOH resin composition which reduces metal adhesion between an EVOH resin and the surface of a processing machine to prevent excessive deterioration of the resin during film formation, and which has excellent long-term workability and film formation properties. An ethylene-vinyl alcohol copolymer composition, in which the ethylene-vinyl alcohol copolymer composition contains an ethylene-vinyl alcohol copolymer (A) and a silicone mixture (B), the silicone mixture (B) being a solid at 25 DEG C.

The invention discloses a carbazole derivative-based inlaid composite carbon wave-absorbing material and a preparation method thereof, and relates to the technical field of electromagnetic wave absorbing materials. The preparation method comprises the following steps: by taking a boric acid-based carbazole derivative as a precursor, carrying out free radical polymerization reaction on the precursor and a cross-linking agent in the presence of PMMA microspheres; the reaction comprises local modification on the surface of the microsphere and copolymerization in a solvent at the same time, and a composite precursor composed of the surface modified microsphere and a copolymer is obtained; and then carrying out pre-oxidation and carbonization treatment on the composite precursor to obtain the embedded composite carbon wave-absorbing material. The unique structure creates a rich heterogeneous interface, cooperates with dipole polarization, interface polarization, conductive loss and multiple scattering, and jointly constructs an efficient multiple electromagnetic wave loss mechanism, so that the material realizes efficient electromagnetic wave absorption performance on the premise of not depending on magnetic components.

The present invention relates to a polymer composition comprising a first heterophasic propylene copolymer, a second heterophasic propylene copolymer and optionally an inorganic filler. The present invention further relates to a process for the preparation of said polymer composition. The present invention further relates to an automotive part comprising such polymer composition.

The invention discloses a comonomer composition and method for constructing a tunable microphase coating. The composition comprises a hydrophobic phase monomer, an acidic hydrophilic monomer containing carboxyl, an ionizable monomer containing tertiary amino, a monomer containing sulfonic acid group or sulfonate group and a delayed locking monomer containing alkoxy silane group, the components are vinyl unsaturated monomers capable of being subjected to free radical copolymerization. Through the collaborative design of the monomers, the obtained copolymer forms a microphase structure composed of a hydrophobic phase domain and an ionic association high-polarity phase domain in the film forming process, and the alkoxy silane group is subjected to a hydrolytic condensation reaction in the presence of water to delay locking of the microphase structure. The coating has good construction stability under the condition of high solid content, and can realize tuning of a microphase structure through ion strength, humidity or pH change after film formation, so that independent adjustment of various coating properties is realized, and the coating has good feasibility and application value.

A polyolefin composition comprising: A) from 85 wt% to 99.0 wt%;of a propylene homopolymer B) from 1.0 wt% to 15.0 wt%; of a propylene, ethylene copolymer composition having: iii) intrinsic viscosity, measured in tetralin, of the fraction soluble in xylene at 25°C ranging from 5.7 dl / g to 9.2 dl / g; propylene, ethylene copolymer composition component B) comprises: b1) from 27 wt% to 40 wt%; of a propylene homopolymer having a melt flow rate MFR1 (230°C / 2.16 kg. ISO 1133) ranging from 62.0 g / 10min to 100.0 g / 10min; b2) from 27 wt% to 40 wt% of a propylene homopolymer having a melt flow rate MFR2 (230°C / 2.16 kg. ISO 1133) lower than MFR1; b3) from 20 wt% to 46 wt% of a propylene ethylene copolymer having a content of ethylene derived units ranging from 18.0 wt% to 48.0 wt%.

A thermoplastic molding composition P comprising: AB: at least one graft copolymer composition AB, consisting of at least one thermoplastic copolymer A and at least one graft copolymer B; C: at least one hindered amine light stabilizer as component C; D: at least one antioxidant as component D; E: optionally at least one co-stabilizer as component E; F: optionally at least one UV absorber as component F; and G: optionally at least one further additive as component G, wherein at least one of components E and F is present in an amount of at least 0.05% by weight based on the molding composition P.

The present disclosure provides an EVOH resin composition that reduces metal adhesion between an EVOH resin and a processing machine surface to prevent excessive deterioration of the resin during film formation and that has excellent long-run properties and film-forming properties. An ethylene-vinyl alcohol copolymer composition comprising: an ethylene-vinyl alcohol copolymer (A); and a silicone mixture (B), wherein the silicone mixture (B) is solid at 25° C.

Silicone oil compositions contain a first copolymer composition having a first refractive index and a second copolymer composition having a second refractive index. The silicone oil compositions can be used in an enclosed cavity within a lens (e.g., intraocular lens) to match the refractive index of the refractive optical element in the lens.