33 results about "Conjugated polyene" patented technology

The present disclosure provides a process. In an embodiment, the process includes providing a neat ethylene / propy-lene / non-conjugated polyene terpolymer (n-terpolymer) having a Mooney viscosity (ML (1+4) at 125C) less than 100 Mooney units (MU). The process includes exposing the n-terpolymer to electron beam radiation at a dosage from 0.2 megaRad (MRad) to 1.3 MRad. The process includes forming a branched ethylene / propylene / non-conjugated polyene terpolymer (b-terpolymer) having a Mooney viscosity ML (1+4) at 125C from 25 MU to 135 MU.

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

To provide a thermoplastic elastomer composition excellent in moldability.SOLUTION: (A) an ethylene-propylene-nonconjugated polyene copolymerized elastomer, (B) a polypropylene, (C) a hydrogenated product of a block polymer of an aromatic vinyl compound and a conjugated diene compound, and (E) a phenolic resin crosslinking agent, wherein the polypropylene (B) comprises a (0g) polypropylene having a melt mass flow rate of 0.1 to 3 B1 / 10 minutes and a (0g) polypropylene having a melt mass flow rate of more than 3 100g / 10 minutes and not more than B2 / 10 minutes. Preferably, the composition further contains (D) a non-aromatic rubber softener and (F) talc.SELECTED DRAWING: Figure 2

Provided is a copolymer rubber composition from which a crosslinked molded article having well-balanced and excellent properties in terms of low hardness, small compression set at low temperatures, and high abrasion resistance can be obtained. [Solution] The copolymer composition comprises 100 parts by mass of an ethylene-α-olefin-non-conjugated polyene copolymer (P) having structural units derived from ethylene [A1], structural units derived from an α-olefin [A2] having 4 to 20 carbon atoms, and structural units derived from a non-conjugated polyene [A3], wherein the [A2] contains 1-butene, and satisfies the following (1) and (2): (1) the ratio [[e] / [x]] of the molar fraction [e] of the structural units derived from ethylene [A1] to the molar fraction [x] of the structural units derived from the α-olefin [A2] having 4 to 20 carbon atoms is 40 / 60 to 90 / 10; and (2) the intrinsic viscosity [η] measured in decalin at 135°C is 5.0 to 7.0 dl / g.

The present invention provides a composition containing an ethylene-α-olefin-nonconjugated polyene copolymer, a hydrosilyl group-containing compound, a platinum-based catalyst, and a zeolite, which has a high crosslinking rate. [Solution] A composition containing a specific ethylene-α-olefin-non-conjugated polyene copolymer (A), a specific hydrosilyl group-containing compound (Y), a platinum-based catalyst, and a zeolite.

To provide a copolymer composition capable of obtaining a molded article excellent in balance of water absorption, surface roughness and compression set.SOLUTION: A copolymer (S) having a structural unit derived from ethylene (A), a structural unit derived from an α - olefin having 3 to 20 carbon atoms (B), and a structural unit derived from a non-conjugated polyene (C), a hydrosilyl group-containing compound (Y) represented by the formula (a) which is an organohydrogenpolysiloxane having at least one silicon-bonded aralkyl group and at least two silicon-bonded hydrogen atoms in a molecule, a platinum-based catalyst, a reaction inhibitor, carbon black, a sodium bicarbonate-based foaming agent (F1), and a microcapsule-based foaming agent (F2); To provide a copolymer composition, a crosslinked molded product of the composition, and a weather strip sponge.SELECTED DRAWING: None

Provided is a vibration-damping rubber composition that is excellent in processability and vibration-damping properties in a low-temperature atmosphere. [Solution] A vibration-damping rubber composition comprising an ethylene-α-olefin-non-conjugated polyene copolymer (A) having structural units derived from ethylene [A1], structural units derived from an α-olefin [A2] having 4 to 20 carbon atoms, and structural units derived from a non-conjugated polyene [A3], wherein the α-olefin [A2] having 4 to 20 carbon atoms contains 1-butene, and satisfying the following requirements (1) and (2): requirement (1) the ratio [[e] / [x]] of the molar fraction [e] of the structural units derived from ethylene [A1] to the molar fraction [x] of the structural units derived from the α-olefin [A2] having 4 to 20 carbon atoms is 40 / 60 to 90 / 10; and requirement (2) the intrinsic viscosity [η] measured in decalin at 135°C is 5.0 to 7.0 dl / g.

This invention achieves a series of compact small-molecule organic dyes with emission wavelengths ranging from the visible light window to the second near-infrared window through a rational strategy of balancing the molecular weight and emission wavelength of the dyes. These dyes exhibit good versatility and excellent blood-brain barrier crossing ability. This invention creatively selects low-molecular-weight flexible conjugated polyene chains as π-electron bridges, which effectively expands the π-conjugated system while maintaining the small molecular weight of the dyes. Furthermore, by extending the π-conjugated structure through conjugated polyene chains to enhance the ICT effect, a redshift in emission wavelength can be achieved while maintaining a small molecular weight. Therefore, based on the p-hydroxybenzylidene-imidazolinone chromophore, this invention integrates molecular design strategies to synergistically enhance the ICT effect, constructing a series of small-molecular-weight fluorescent dyes with D-π-A1 or D-π-A1-π-A2 structures, with wavelengths reaching up to 1200 nm or higher. This ensures the blood-brain barrier permeability of the dyes as probes, enabling their application in in vivo in situ brain imaging.

To provide a copolymer composition which has a high crosslinking rate, is excellent in productivity and processability, and gives a crosslinked molded article excellent in physical properties (for example, hardness, tensile stress at break, tensile elongation at break, and compression set).SOLUTION: A polymer (0dL) having an intrinsic viscosity [η] (in decalin at 135 °C.) of 2. 0dL / g or more and less than 4. S1 / g, a polymer (S2) having an intrinsic viscosity [η] (in decalin at 135 °C.) of 0. 5dL / g or more and less than 2. 0dL / g, a specific hydrosilyl group-containing compound (Y), S2, each of the copolymers (S1) and (S2) has 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 non-conjugated polyene (C).SELECTED DRAWING: None

An object of the present invention is to obtain an ethylene-based copolymer composition which can improve productivity by improving tackiness with a layer containing a fiber material, is excellent in adhesiveness with a layer containing a fiber material, and can maintain mechanical properties of a laminate to be obtained.SOLUTION: An ethylene-based copolymer composition contains a specific ethylene / α - olefin / non-conjugated polyene copolymer (L) containing a structural unit derived from ethylene [A], a structural unit derived from an α - olefin [B] having 4 to 20 carbon atoms, and a structural unit derived from a non-conjugated polyene [C] containing a total of two or more partial structures selected from the group consisting of the following general formulae (I) and (II) in a molecule, a trans-polyoctenylene (M), and a crosslinking aid (N) that is an unsaturated carboxylic acid metal salt.SELECTED DRAWING: None

The application discloses a polyvinyl alcohol qualitative identification method based on Py-GC / MS, and belongs to the technical field of analysis and detection, which comprises the following steps: (1) placing a sample to be tested in a cracker, pyrolyzing under the protection of an inert atmosphere at a high temperature of 300-600 DEG C, introducing pyrolysis products into a gas chromatograph-mass spectrometer for analysis to obtain a TIC graph; (2) if polyvinyl alcohol characteristic pyrolysis components including methyl conjugated polyene aldehyde are all identified in the TIC graph, it is indicated that the sample to be tested contains polyvinyl alcohol. The application does not need a sample pretreatment step, can quickly realize accurate qualitative identification of polyvinyl alcohol in the sample, and can provide significant characteristic pyrolysis components and basis for accurately identifying polyvinyl alcohol by using a pyrolysis method, such as octa-2, 4, 6-triene aldehyde and other methyl conjugated polyene aldehydes.

A composition comprising a rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer" that comprises the following properties: i) a MLRA / ML (at 125°C) value ≥ 8.0 s, and ii) gel content ≤ 10.0 wt%, based on the weight of the "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer;" and wherein the "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer" is formed from a first composition comprising the following components: a) an ethylene / alpha-olefin / nonconjugated polyene interpolymer and b) at least one sulfur source.

The invention belongs to the technical field of polysubstituted olefin synthesis methods, and particularly relates to a synthesis method of polysubstituted conjugated diene and conjugated triene, which is characterized in that under relatively mild conditions, simple transition metal salt is adopted as a catalyst, and polysubstituted conjugated diene and conjugated triene compounds are prepared from a simple raw material alkyl amide; the product obtained by the invention is brand new and is not reported; the two-step alkenylation reaction can be realized through a'one-pot method '; the synthesis method is simple to operate, mild in reaction condition, high in reaction yield, wide in application range and very good in economic value, the polysubstituted conjugated polyene compound is synthesized by adopting multiple C-H functionalization reactions in the synthesis method, the operation is simple and effective, the synthesis raw materials are economical and easy to obtain, and the synthesis method is suitable for industrial production. The method is suitable for high-selectivity preparation of polysubstituted olefins, has a wide application prospect, and is an effective supplement of the existing method in the aspect of preparation methods.

One embodiment of the present invention relates to a thermoplastic elastomer composition or a shaped article thereof. The thermoplastic elastomer composition is a composition including 100 parts by mass of an ethylene / α-olefin / non-conjugated polyene copolymer (A); 20 to 80 parts by mass of a propylene polymer (B) having a melt flow rate (measured at 230° C. under 2.16 kg load in accordance with ASTM D 1238-65T) of 1 to 100 g / 10 min; and 0.1 to 50 parts by mass of an inorganic filler (C); or is a composition obtained by dynamically crosslinking 100 parts by mass of an ethylene / α-olefin / non-conjugated polyene copolymer (A); 20 to 80 parts by mass of the propylene polymer (B); 0.1 to 50 parts by mass of an inorganic filler (C); and a crosslinking agent (D).

The present invention relates to a rubber composition for compounding with a fabric of a transmission belt, the rubber composition comprising a rubber component, wherein the rubber component contains an ethylene-long-chain ɑ-olefin-non-conjugated polyene copolymer in which the number of carbon atoms in a long-chain ɑ-olefin unit is (4) or more, and the proportion of the ethylene-long-chain ɑ-olefin-non-conjugated polyene copolymer in the rubber component is (25) mass% or more.

[Problem] To provide a thermoplastic elastomer composition from which a molded article having excellent rubber elasticity, a small viscosity / swell ratio (a small viscosity and a large swell), and excellent appearance can be obtained. [Solution] A thermoplastic elastomer composition comprising: an ethylene-(α-olefin)-(non-conjugated polyene) copolymer (A) which has a structural unit derived from ethylene [A1], a structural unit derived from an α-olefin [A2] having 4-20 carbon atoms, and a structural unit derived from a non-conjugated polyene [A3] and satisfies the requirements (1) and (2) mentioned below; and a crystalline olefin-based polymer (B).　Requirement (1): The molar ratio ([A1] / [A2]) of the structural unit derived from ethylene [A1] to the structural unit derived from the α-olefin [A2] having 4-20 carbon atoms is 40 / 60 to 90 / 10.　Requirement (2): The intrinsic viscosity [η] as measured in decalin at 135°C is 4.0-7.0 dl / g.

One aspect of the present invention relates to a sliding composition film or a method for producing a sliding composition, the sliding composition including an ethylene / α-olefin / nonconjugated polyene copolymer (A); a propylene-based random copolymer (B1) and a propylene homopolymer (B2), having a melt flow rate of 0.1 to 4.0 g / 10 min; high-density polyethylene (C1) having a density of 940 to 970 kg / m3 and a MFR of 0.1 g / 10 min or less; ultra-high molecular weight polyethylene (C2) having an intrinsic viscosity [η] of 10 to 40 dl / g (in decalin at 135° C.), an average particle size D50 of 22 to 50μm, and a density of less than 940 kg / m3; and a silicone compound (D) having a kinematic viscosity of 3,000 to 1,000,000 cSt (at 25° C.) in each predetermined content, in which the ethylene / α-olefin / nonconjugated polyene copolymer (A) is at least partially cross-linked with a phenolic resin-based cross-linking agent.

Provided are: a binder for an all-solid-state battery, the binder containing a polymer (A) that includes two or more structural units selected from the group consisting of a structural unit (a1) derived from ethylene, a structural unit (a2) derived from an alpha-olefin having 3-20 carbon atoms, and a structural unit (a3) derived from a non-conjugated polyene, wherein the polymer (A) includes 77 mass% or more of the structural unit (a1) when 100 mass% is defined as the total of the structural unit (a1) derived from ethylene, the structural unit (a2) derived from an alpha-olefin having 3-20 carbon atoms, and the structural unit (a3) derived from a non-conjugated polyene; and an electrode, an electrolyte layer, and an all-solid-state battery that include the binder for an all-solid-state battery.

A composition comprising a "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer" that comprises the following properties: i) a MLRA / ML (at 125°C) value ≥ 8.0 s, and ii) a gel content ≤ 10 wt%, based on the weight of the "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer;" and wherein the "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer" is formed from a first composition comprising the following components: a) an ethylene / alpha-olefin / nonconjugated polyene interpolymer, and b) at least one phenolic coupling agent selected from structures b1) through b3), each as described herein.

Provided is, for example, a thermoplastic elastomer composition having excellent heat aging resistance when exposed to a high-temperature environment for a long period of time, also excellent hardness and mechanical properties as well as excellent extrusion processability.A thermoplastic elastomer composition (I) including a cross-linked product of an ethylene / α-olefin / nonconjugated polyene copolymer (A) having a weight-average molecular weight of 350,000 or more, with a phenolic resin-based cross-linking agent (E), and including 360 to 460 parts by mass of a crystalline polyolefin (B), 2 to 6 parts by mass of a fatty acid-based lubricant (D), and 80 parts by mass or more of a softener (C1), relative to 100 parts by mass of the copolymer (A), in which the thermoplastic elastomer composition (I) has a ½ crystallization time at 120° C. of 200 seconds or less, and a polyolefin component included in the thermoplastic elastomer composition (I) has a maximum spherulite size in a range of 8 μm or less.

The invention relates to an improved process for isomerizing polyunsaturated non-aromatic compounds including acyclic conjugated polyenes and alicyclic conjugated polyenes. In particular it relates to an improved and safe process for forming a 11-E retinoid compounds in high yield by expending as few energy as possible and with avoiding at most possible side products or product mixtures. This is achieved by feeding at least one of retinoid compounds of formula 2 to 5, or at least one of retinoid compounds of formula 2 to 5 and retinoid compound of formula 1, an organic solvent and a photosensitizer into a reaction device and irradiating the thus obtained reaction mixture with visible monochromatic light, at least 90% of the power of said monochromatic light and at most 100% of said power being emitted in the range from 460 nm to 580 nm.

To provide a transmission belt composition that has excellent processability, a modulus suitable for transmission belts, and can form a transmission belt with excellent wear resistance. [Solution] A copolymer (S1) having structural units derived from ethylene [A1], structural units derived from α-olefin [B1] having 4 to 20 carbon atoms, and structural units derived from non-conjugated polyene [C1] containing a total of two or more substructures selected from the group consisting of the following formulas (I) and (II) in one molecule, wherein the structural units derived from [B1] include structural units derived from 1-butene, and the structural units derived from [C1] include structural units derived from 5-vinyl-2-norbornene; a copolymer (S2) having structural units derived from ethylene [A2], structural units derived from propylene, and structural units derived from non-conjugated polyene [C2] containing a total of two or more substructures selected from the group consisting of the following formulas (I) and (II) in one molecule; carbon black (B); and short fibers (C). JPEG2026058902000011.jpg25130

To provide an industrial belt composition that yields a crosslinked material with excellent elongation at break, heat resistance, and adhesion to fibrous materials. [Solution] An industrial belt composition comprising an ethylene-α-olefin-non-conjugated polyene copolymer (A-1) that satisfies specific requirements, an ethylene-α-olefin copolymer (A-2) other than (A-1), a reinforcing agent, and a titanate coupling agent, wherein the reinforcing agent contains carbon black; a laminate comprising a layer made of the composition; and an industrial belt having the laminate.

To provide a transmission belt composition that has excellent processability, a modulus suitable for transmission belts, and can form a transmission belt with excellent wear resistance. [Solution] A transmission belt composition comprising an ethylene-α-olefin-non-conjugated polyene copolymer (S1) having structural units derived from ethylene [A1], structural units derived from α-olefin [B1] having 3 to 20 carbon atoms, structural units derived from a non-conjugated polyene [C1] containing a total of one substructure selected from the group consisting of the following general formulas (I) and (II) in one molecule, and structural units derived from a non-conjugated polyene [C2] containing a total of two or more substructures selected from the group consisting of the following general formulas (I) and (II) in one molecule, carbon black (B), and short fibers (C). JPEG2026092275000006.jpg25130

A composition comprising a "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer" that comprises the following properties: i) a MLRA / ML (at 125oC) value ≥ 8.0 s, and ii) a gel content ≤ 10 wt%, based on the weight of the "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer;" and wherein the "rheology modified ethylene / alpha-olefin / nonconjugated polyene interpolymer" is formed from a first composition comprising the following components: a) can ethylene / alpha-olefin / nonconjugated polyene interpolymer, b) at least one hydrosilylation agent, and c) at least one catalyst.

The present invention aims to provide an ethylene-α-olefin-non-conjugated polyene copolymer composition that has excellent heat aging resistance and low-temperature properties, as well as excellent bloom resistance, and a crosslinked molded article obtained from this copolymer composition. [Solution] A copolymer composition comprising: a copolymer (S) having constituent units derived from ethylene (A), constituent units derived from an α-olefin (B) having 3 to 20 carbon atoms, and constituent units derived from a specific non-conjugated polyene (C), satisfying specific requirements; a hydrosilyl group-containing compound (Y) which is a specific organohydrogenpolysiloxane having at least one silicon atom-bonded aralkyl group and at least two silicon atom-bonded hydrogen atoms in the molecule; a platinum-based catalyst; carbon black; and an amine-based antioxidant, wherein the copolymer composition contains 5 to 150 parts by mass of carbon black per 100 parts by mass of the copolymer (S), and the copolymer (S) includes a constituent unit derived from 1-butene as a constituent unit derived from the α-olefin (B).

This disclosure provides a method and a resulting composition. In one embodiment, the method includes providing an ethylene / propylene / non-conjugated polyene terpolymer (EPDM) having at least 3.5 wt% non-conjugated polyene. The method includes reacting the EPDM with a metal Lewis acid to form a rheology-modified EPDM. The rheology-modified EPDM has (i) a z-average molecular weight (Mz) greater than 500,000 g / mol to 10,000,000 g / mol, (ii) an Mz / Mw ratio of 3 to 10, (iii) a g value of 0.4 to 1.0, (iv) a z value of 1.0 to 3.5, (v) a Mooney viscosity of 50 to 150, and (vi) a tanδ value of 0.1 to less than 1.0.

The invention discloses a preparation method of an inorganic solid electrolyte membrane positive pole piece loaded with an oxygen-containing free radical scavenger. The preparation method comprises the following steps: S1, mixing an inorganic solid electrolyte, a high-molecular organic polymer and a conjugated polyene oxygen-containing free radical scavenger in an organic solvent to obtain a spinning solution; s2, spraying the spinning solution obtained in the step S1 on a current collector coated with a positive active layer through an electrostatic spinning technology to obtain an inorganic solid electrolyte membrane positive pole piece loaded with an oxygen-containing free radical trapping agent; a three-dimensional ion transmission channel is constructed, the conduction rate of lithium ions is effectively accelerated, the thermal runaway time of the lithium ion battery is delayed, the thermal runaway intensity of the lithium ion battery is reduced, and the positive pole piece with good conductivity, good thermal stability and high safety is obtained.

The present invention provides ethylene / propylene / non-conjugated polyenterpolymer (EPDM) having a molecular structure including long-chain branching (LCB). [Solution] A composition is provided which contains a mixed metal Lewis acid composed of (i) Mg and Al, (ii) Ti and Al, and (iii) Ti, Al, and Mg at a concentration of 100 ppm to 23,000 ppm and has at least 3.5 wt% non-conjugated polyene in an ethylene / propylene / non-conjugated polyenterpolymer (EPDM); (i) z-average molecular weight (Mz) of more than 500,000 g / mol to 10,000,000 g / mol, (ii) Mz / Mw of 3 to 10, (v) Mooney viscosity of 50 to 150, and (vi) tan delta value of less than 0.1 to 1.0.

Provided is a copolymer composition for conveyor belts that can give a laminate having excellent adhesion to a layer containing a fiber material and an excellent balance between heat aging resistance and abrasion resistance. [Solution] The present invention provides a copolymer composition for conveyor belts, which comprises an ethylene-α-olefin-non-conjugated polyene copolymer (L-1) having structural units derived from ethylene (A), structural units derived from an α-olefin (B) having 4 to 20 carbon atoms, and structural units derived from a non-conjugated polyene (C) having, in one molecule, two or more partial structures selected from the group consisting of the following general formulas (I) and (II): an ethylene-α-olefin copolymer (L-2) having structural units derived from ethylene and structural units derived from an α-olefin having 3 to 20 carbon atoms, and trans-polyoctenylene (M); a laminate comprising a layer containing the copolymer composition; and an industrial belt comprising the laminate. JPEG2026043484000008.jpg28170