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340 results about "Monomer" patented technology

A monomer (/ˈmɒnəmər/ MON-ə-mər; mono-, "one" + -mer, "part") is a molecule that can be reacted together with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization.

Crosslinked polyethylene insulation material with intrinsic self-repairing and recyclable properties, and preparation method and application thereof

The application provides a crosslinked polyethylene insulating material with intrinsic self-repairing and recyclable characteristics, a preparation method and application thereof, and relates to the technical field of cable materials.The crosslinked polyethylene insulating material with intrinsic self-repairing and recyclable characteristics is prepared from the following components in parts by weight: 99.7 parts by weight of low-density polyethylene, 1.0-2.6 parts by weight of peroxide, 0.1-0.5 parts by weight of antioxidant, 5-20 parts by weight of maleimide monomer, 0.35-0.7 parts by weight of catalyst, 0.5-3.0 parts by weight of ligand and 0.5-3.0 parts by weight of furan-based small molecule.The low-density polyethylene is functionally modified through catalytic amination reaction, so that the chain breaking and crosslinking in the modification process are avoided, and the mechanical properties, insulating properties and dielectric properties of the crosslinked polyethylene are enhanced through the post-absorption of the introduced peroxide.Meanwhile, the dynamic reversible Diels-Alder reaction introduced by the post-absorption of the furan-based small molecule enables the polyethylene insulating material to have good intrinsic self-repairing effect on mechanical damage and electrical damage.
Owner:UNIV OF SCI & TECH BEIJING

Polymer property prediction method and device based on substructure and knowledge enhancement

The invention relates to a polymer property prediction method and device based on substructure and knowledge enhancement. The method comprises the following steps: obtaining a polymer monomer SMILES to be predicted; adopting a rule-based BRICS algorithm to cut a polymer monomer SMILES to be predicted, and obtaining a substructure SMILES; converting the SMILES of the polymer monomer to be predicted and the SMILES of the substructure into a molecular image, and matching a property influence flag bit for the molecular image of the substructure based on a pre-constructed labeling dictionary; utilizing an improved double-flow ResNet network to respectively extract feature vectors of a polymer monomer molecular image to be predicted and a substructure molecular image to be predicted; respectively polymerizing the feature vector and the property influence flag bit of the substructure, and splicing the feature vector and the feature vector of the polymer monomer to be predicted to obtain a target feature vector to be predicted; and inputting the to-be-predicted target feature vector into a pre-trained multi-layer perceptron model to obtain the property of the to-be-predicted polymer monomer. Compared with the prior art, the prediction precision and generalization ability of polymer property prediction are remarkably improved.
Owner:SHANGHAI UNIV

Polyester as well as preparation method and application thereof

PendingCN121914377ABenzoic acidPolyester
The invention provides polyester and a preparation method and application thereof, the polyester comprises a structural unit derived from the following monomer components: at least one monomer component I selected from hydroxybenzoic acid or hydroxynaphthoic acid; and at least one monomer component II, wherein the monomer component II is selected from p-hydroxybenzoic acid containing a substituent group. A small amount of the monomer component II is introduced into the polyester material, interaction points are provided for chain segments of the polymer, the chain segments are promoted to form a branched structure, and therefore the melt strength of the polymer is well improved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Production method of modified polytetrafluoroethylene and composition

A method for producing modified polytetrafluoroethylene including: polymerizing tetrafluoroethylene and a modifying monomer in an aqueous medium in the presence of a polymer (I) containing a polymerization unit (I) based on a monomer represented by the following general formula (I) to obtain a modified polytetrafluoroethylene:wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more. Also disclosed is a composition containing the modified polytetrafluoroethylene and the polymer (I).
Owner:DAIKIN INDUSTRIES LTD

Surface lipophilic modified barite weighting material as well as preparation method and application thereof

The invention discloses a surface lipophilic modified barite weighting material as well as a preparation method and application thereof, and belongs to the technical field of drilling fluids. The surface lipophilic modified barite weighting material comprises barite and a surface modifier, and the surface modifier comprises a copolymer formed by polymerizing a monomer A, a monomer B, a monomer C and a monomer D. According to the invention, the lipophilicity of the barite is chemically modified by the surface modifier, and all monomers have a synergistic effect, so that when the grafted and modified barite weighting material is used as the weighting agent of the oil-based drilling fluid, the dispersity and the stability of particles in the oil-based drilling fluid can be improved, and the rheological property, the plugging property and the high-temperature resistance of the drilling fluid can be adjusted.
Owner:CHINA NAT PETROLEUM CORP +1

Butyl sealant for self-repairing photovoltaic module and preparation method of butyl sealant

The invention relates to the technical field of photovoltaic packaging materials, and discloses a butyl sealant for a self-repairing photovoltaic module and a preparation method of the butyl sealant. The butyl sealant is prepared from the following substances in parts by weight: 40 to 60 parts of modified butyl rubber, 20 to 35 parts of inorganic filler, 5 to 15 parts of tackifying resin, 2 to 8 parts of plasticizer, 0.5 to 2 parts of anti-aging agent, 0.3 to 1.0 part of bifunctional crosslinking monomer, 0.08 to 0.25 part of composite catalyst, 2 to 5 parts of microcapsule type repairing agent and 3 to 10 parts of drying agent. According to the invention, through the dual-mechanism design of a'sulfydryl-amino-silicon oxygen bond 'dynamic network and the microcapsule type repairing agent, the self-repairing performance and the aging resistance are synchronously and remarkably improved, and the contradiction that'the self-repairing performance and the aging resistance of a traditional material are difficult to consider at the same time' is solved. Tests show that the 12h repair rate of the sealant for 3mm scratches at 50 DEG C is greater than or equal to 98%, the tensile strength retention rate is greater than or equal to 92% after the sealant is subjected to damp-heat aging at 85 DEG C / 85% RH for 1000 h, and the sealant is superior to existing similar products.
Owner:YANTAI DARBOND TECH

Material design apparatus, material design method, and material design program

A material design apparatus includes a learned model that has learned a correspondence between input information about a blend proportion of a monomer and output information about physical property values of a polymer by machine learning. Each unit of the material design apparatus is configured to: receive as input a blend proportion range of at least one monomer; receive required ranges of physical property values of a polymer; generate a comprehensive analysis point of a polymer polymerized from multiple monomers, the multiple monomers including, within the blend proportion range, at least one monomer of which the blend proportion range is input; input the generated comprehensive analysis point into the learned model to calculate physical property values of a polymer, to create a data set, and to store the created data set; and select a polymer within the required ranges of the physical property values from the data set.
Owner:RESONAC CORP

Resin composition, reinforced composite material, shaped product, and method of recovering reinforcing fiber from reinforced composite material

A resin composition contains a resin that includes a monomer unit derived from (A) an acetoacetic acid ester compound including two or more acetoacetic acid ester groups in a molecule and a monomer unit derived from (B) an amine compound including two or more primary amino groups in a molecule, and that has a three-dimensional crosslinked structure in which an acetoacetic acid ester group of the (A) acetoacetic acid ester compound and a primary amino group of the (B) amine compound are condensation bonded.
Owner:ASAHI KASEI KOGYO KABUSHIKI KAISHA

Polymer composition, polymer film material, holographic grating and preparation method thereof, optical film material and display equipment

The invention provides a polymer composition, a polymer film material, a holographic grating, a preparation method of the holographic grating, an optical film material and display equipment. The polymer composition comprises a first polymerizable monomer, a second polymerizable monomer and a film-forming resin. The first polymerizable monomer is a non-liquid crystal monomer; the second polymerizable monomer is a liquid crystal monomer, the second polymerizable monomer comprises an active group, and the second polymerizable monomer can be subjected to a copolymerization reaction with the first polymerizable monomer through the active group under illumination. The refractive index modulation degree of the optical film material can be improved by using the polymer composition.
Owner:HUAWEI TECH CO LTD

Borate compound-containing composition

A borate compound-containing composition soluble in hydrocarbon solvents. A composition containing base A, or a compound having a total carbon number of not less than 8 and represented by the formula (5):wherein R and R′ are each independently an optionally substituted C1-30 alkyl group, an optionally substituted C3-15 cycloalkyl group, or an optionally substituted C6-14 aryl group; anda borate compound represented by the following formula (1):wherein R1, R2, R3 and R4 are each independently a C6-14 aryl group substituted by one or more fluorine atoms or fluoro C1-4 alkyl groups; and[A-H]+ is a base A-derived cation. A method for producing a polymer, by polymerizing at least one kind of monomer selected from the group consisting of olefins and dienes by using the composition A as a cocatalyst.
Owner:AGC INC

Thermosetting adhesive composition, thermosetting adhesive as well as preparation method and application of thermosetting adhesive

The invention provides a thermosetting adhesive composition, a thermosetting adhesive as well as a preparation method and application of the thermosetting adhesive. The thermosetting adhesive composition comprises the following components in parts by weight: 55-90 parts of an acrylate prepolymer; 10 to 50 parts of a first acrylate monomer; 1-10 parts of a thermal initiator; 5-30 parts of a filler; and 0.5-5 parts of an auxiliary agent. The thermosetting adhesive has relatively strong bonding force and electrolyte resistance, and the sizing thickness of the thermosetting adhesive is controllable, so that the performance of the battery is not influenced by overlarge thickness during bonding.
Owner:STEADYCHEM (SHANGHAI) CO LTD

Pipe liner material, cured product of pipe liner material, and method for producing cured product of pipe liner material

PendingCN121666405AFiberPolymer science
The present invention pertains to a pipe liner material containing a composite material (E) that contains a resin composition containing an ethylenically unsaturated group-containing resin (A), an ethylenically unsaturated group-containing monomer (B), a photopolymerization initiator (C), and a dye (D), and a fiber base material (e), the composite material (E) being characterized in that: the resin composition contains an ethylenically unsaturated group-containing resin (A), an ethylenically unsaturated group-containing monomer (B), a photopolymerization initiator (C), and a dye (D); the pigment (D) has a maximum absorption wavelength in the wavelength region of 400-1100 nm, and the content of the pigment (D) in the resin composition is 0.003 parts by mass or more with respect to 100 parts by mass of the total of the ethylenically unsaturated group-containing resin (A) and the ethylenically unsaturated group-containing monomer (B).
Owner:RESONAC CORP

Low-dielectric and high-temperature-resistant modified cyanate ester resin and preparation method thereof

PendingCN121930665ASimple processOptimize network structurePolymer scienceResin matrix
The invention relates to the technical field of high-performance polymer materials, in particular to low-dielectric and high-temperature-resistant modified cyanate ester resin and a preparation method thereof. Advantages and characteristics of bisphenol A type cyanate ester monomers and bisphenol M type cyanate ester monomers are combined, and the dielectric property and the thermal stability are remarkably improved. Diallyl bisphenol A is introduced as a network structure modifier, the phenolic hydroxyl group of the diallyl bisphenol A adjusts the curing reaction rate, and the allyl and bisphenol A structures of the diallyl bisphenol A finely regulate and control the rigid-flexible balance of a cross-linked network through chemical copolymerization, so that the curing process is controllable and the final network structure is optimized. Meanwhile, a toughening system is innovatively designed, epoxy-terminated liquid nitrile rubber is adopted for toughening, stable micron-scale rubber particles are formed in a resin matrix in a chemical bonding mode, and the fracture toughness is improved. The modified resin has excellent dielectric properties, high heat resistance and a wide process window, and meets the strict requirements of a new generation of low observability aircrafts on a bearing-stealth integrated composite material matrix.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Polymers, resin compositions, dispersants, and lubricant compositions

The present invention provides a polymer that has high dispersibility of fluororesin particles and excellent solubility in fluorine-based solvents, and further has a perfluoroalkyl group having less than 6 carbon atoms, which imposes little burden on the environment and living organisms. The polymer contains at least two structural units of first to third monomer units, or is composed solely of the second monomer unit. The first to third monomer units are represented by formulas (1) to (3), respectively. CH2=CR 1 -COO-Q 1 -Rf 1 (1) R 1 :H or methyl, Rf 1 : C1-4 polyfluoroalkyl group, Q 1 :Single bond, etc. CH2=CR 2 -COO-R 3 -Q 2 -Rf 2 (2) R 2 :H or methyl, R 3 : C1-6 alkylene group, Rf 2 : C5-20 perfluoropolyether group, Q 2 : Single bond or -NH-COO-Q 21 - and Q 21 is a single bond, etc. CH2=CR 4 -COO-Q 3 -R 5 (3) R 4 :H or methyl, R 5 : C12 to C40 alkyl group, Q 3 :Single bond, etc.
Owner:HARVES CO LTD

Polymer composition and molded article

ActiveUS12606701B2PolyesterPolymer science
Disclosed is a polymer composition including a polyester copolymer and a biodegradable polymer, wherein the polyester copolymer includes two types of ester bond-forming monomer residues as main structural units, when the two types of ester bond-forming monomers are defined as “monomer A” and “monomer B”, respectively, the polyester copolymer satisfies (1) to (3) below, the biodegradable polymer has a melting point of 100° C. or higher, and the biodegradable polymer is included in an amount of 0.1% by weight or more and less than 30% by weight in 100% by weight of the total of the polyester copolymer and the biodegradable polymer. The present invention provides a polymer composition having low Young's modulus and high tensile strength. (1) An R value represented by the following formula is 0.45 or more and 0.99 or less. R=[AB] / (2[A][B])×100, where [A]: molar fraction (%) of monomer A residues in the polyester copolymer, [B]: molar fraction (%) of monomer B residues in the polyester copolymer, and [AB]: molar fraction (%) of a structure in which monomer A residues and monomer B residues are adjacent to each other (A-B and B-A) in the polyester copolymer. (2) A crystallization rate of monomer A residues and a crystallization rate of monomer B residues are less than 14%. (3) A melting point is lower than 100° C. or a clear melting point does not exist.
Owner:TORAY INDUSTRIES INC

Water-repellent agent composition

The present invention provides a water-repellent agent composition which contains a polymer (A) having a repeating unit that is derived from a silicon-containing monomer represented by formula CH2=C(-Ra)-X-SiZ3 (in the formula, Ra represents a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, X represents a divalent group that is composed of one or more selected from the group consisting of X1 and X2, X1 represents a group that is composed of one or more selected from the group consisting of -O-, -C(=O)-, and -NR'- (wherein each R' independently represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms), X2 represents a divalent aliphatic hydrocarbon group having 1 to 40 carbon atoms, each Z independently represents a hydrocarbon group having 1 to 10 carbon atoms or –(O-SiZ1 2)n-O-SiZ2 3, each Z1 independently represents a hydrocarbon group having 1 to 10 carbon atoms or -OSiZ11 3, each Z11 independently represents a hydrocarbon group having 1 to 10 carbon atoms or -OSiZ111 3, each Z111 independently represents a hydrocarbon group having 1 to 10 carbon atoms, each Z2 independently represents a hydrocarbon group having 1 to 10 carbon atoms or -OSiZ21 3, each Z21 independently represents a hydrocarbon group having 1 to 10 carbon atoms or -OSiZ211 3, each Z211 independently represents a hydrocarbon group having 1 to 10 carbon atoms, and each n independently represents an integer of 0 to 196) and a dispersant (B), wherein: the polymer (A) contains the repeating unit that is derived from the silicon-containing monomer in an amount of 90% by weight or more based on the weight of the polymer (A); and polymer (A) has a number average molecular weight of 60,000 to 4,000,000 inclusive. The water-repellent agent composition is capable of imparting both good water repellency and good slip resistance to a base material (particularly, a fiber product).
Owner:DAIKIN INDUSTRIES LTD

Copolymer and its use as coating

A copolymer and its use as coating whereby the copolymer comprises a first monomer of the general formula (I)and a second monomer of the general formula (II)wherein Y is selected from the group consisting of —CH2Z3, —NHCOR5, —CONHR6, —OCOR7, —COOR8 and —OR9, and where Z1, Z2, and Z3 are selected from the group consisting of fluoro, chloro, bromo, iodo, hydroxyl, toluene-4-sulfonyloxy and methylsulfonyloxy. R1, R2, R3 and R4 are independently from each other selected from the group consisting of linear or branched C1-C30 alkyl, a linear or branched C2-C30 alkenyl, a linear or branched C2-C30 alkynyl, sulfo, nitro, amino, hydroxy, oligo(C2 to C4-alkylene glycol), —NHCOR5, —CONHR6, —OCOR7, —COOR8 and —OR. R5, R6, R7, R8 and R9 are selected from the group consisting of a linear or branched C1-C30 alkyl, a linear or branched C2-C30 alkenyl and a linear or branched C2-C30 alkynyl.
Owner:ETH ZURICH +1

Polymers, separator films, pole pieces, batteries and electrical devices

The present application discloses a polymer, a separator film, a pole piece, a battery, and an electric device, the polymer comprising a first organic polymer and a second organic polymer, the polymerized monomers of the first organic polymer comprising a first polymerized monomer, a second polymerized monomer, and a third polymerized monomer, the polymerized monomers of the second organic polymer comprising the first polymerized monomer, the third polymerized monomer, and a fourth polymerized monomer, the structure of the first polymerized monomer comprising (I), wherein R1 comprises a hydrogen atom or an alkyl group of 1 to 18 carbon atoms, and R2 comprises a hydrogen atom or an alkyl group of 1 to 18 carbon atoms. the structure of the second polymerizable monomer comprises (II), R3 comprises a hydrogen atom or a substituted or unsubstituted alkyl group of 1 to 18 carbon atoms, the structure of the third polymerizable monomer comprises (III), R4 comprises a hydrogen atom or an alkyl group of 1 to 6 carbon atoms, R5 comprises a hydrogen atom, a hydroxy group-substituted alkyl group of 1 to 6 carbon atoms, or an alkoxy group of 1 to 6 carbon atoms, the structure of the fourth polymerizable monomer comprises (IV), R6 comprises a hydrogen atom or an alkyl group of 1 to 6 carbon atoms.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Aqueous emulsion and method for producing the same, and aqueous ink

PendingJP2026054283AInksPolymer scienceEmulsion
This invention provides a water-based emulsion useful as a binder component for water-based inks, capable of forming a coating film with excellent abrasion resistance, alcohol resistance, hot water resistance (shrink resistance), and adhesion to various substrates. [Solution] The emulsion contains polymer-formed emulsion particles, the polymer comprising 20-40% by mass of constituent units (1) derived from a polymer-type monomer represented by general formula (1), 57-79.9% by mass of constituent units (2) derived from a water-insoluble first monomer having one vinyl group, and 0.1-3% by mass of constituent units (3) derived from a water-insoluble second monomer having two or more vinyl groups, wherein constituent units (1) are neutralized with alkali. TIFF2026054283000014.tif51170
Owner:DAINICHISEIKA COLOR & CHEMICALS MFG CO LTD

Copper porphyrin conjugated acetylene polymer composite material, preparation method and application of copper porphyrin conjugated acetylene polymer composite material in photoelectric detection of biological mercaptan

The invention discloses a copper porphyrin conjugated acetylene polymer composite material, a preparation method and application of the copper porphyrin conjugated acetylene polymer composite material in biological mercaptan photoelectric detection, the composite material comprises an electrochemical reduction graphene oxide layer, a poly (1, 4-diacetylene benzene) layer and a copper porphyrin conjugated acetylene copolymer layer, and the three layers form a layered composite structure through pi-pi interaction. The copper porphyrin conjugated acetylene copolymer is formed by copolymerization of a 1, 4-diacetylene benzene monomer and a copper-coordinated 5, 10, 15, 20-tetra (4-acetylene phenyl) porphyrin monomer through a Sonogashira coupling reaction, and the composite material utilizes a double recognition site mechanism that a Cu-S coordinate bond is formed by a porphyrin center and sulfydryl and an acetylene bond and the sulfydryl are subjected to a click reaction under illumination. The high-sensitivity and high-selectivity detection on the L-cysteine and the reduced glutathione is realized, and the detection limit on the L-cysteine can reach 2.3 mu M.
Owner:NANJING COLLEGE OF CHEM TECH

A resin composition and use thereof

PendingCN122302464AMetallic foilPolymer science
This invention provides a resin composition and its application. The resin composition comprises a combination of an acenaphthene-modified polymer and a component containing C=C unsaturated bonds. The monomers of the acenaphthene-modified polymer include acenaphthene and a polyfunctional vinyl aromatic compound, and the molar percentage of acenaphthene in the monomers is 10-90%. Based on a total mass of 100 parts for the acenaphthene-modified polymer and the component containing C=C unsaturated bonds, the mass of the acenaphthene-modified polymer is 10-80 parts. This invention, through the design of the acenaphthene-modified polymer and its mutual compounding with the component containing C=C unsaturated bonds, enables the resin composition and the prepreg and metal foil laminate containing it to have high glass transition temperatures, excellent heat resistance, dielectric properties, resistance to damp heat, and filler properties, significantly improving the internal consistency of the substrate and fully meeting the performance requirements of high-transmission-rate substrates.
Owner:GUANGDONG SHENGYI SCI TECH

Hollow particles and production method therefor

The present invention provides: hollow particles which enable a lower dielectric constant and a lower dielectric loss tangent of a resin composition and a production method therefor. The hollow particles of the present invention have a shell portion formed by a polymer of a monomer component including a divinyl aromatic compound and a monovinyl aromatic compound and a hollow portion surrounded by the shell portion, in which a dielectric loss tangent measured by cavity resonance method (frequency: 10 GHz (room temperature)) is 1.00×10−3 or less. The hollow particles can be produced by mixing the monomer component and a predetermined hydrophobic solvent, by further mixing water, by polymerizing the monomer component in an emulsion liquid obtained, and by washing a resulting polymer with water and an organic solvent.
Owner:SANSUI ELECTRIC CO LTD

Construction method and evaluation method for evaluating and regulating optical performance of cellulose acetate film

The invention discloses a construction method and an evaluation method for evaluating and regulating the optical performance of a cellulose acetate film. The construction method comprises the following steps: S1, molecular modeling: carrying out molecular modeling on an acetyl substituted monomer of cellulose acetate; s2, obtaining components alpha xx, alpha yy and alpha zz of polarizability in different coordinate directions corresponding to different wavelengths; s3, constructing a function relationship between the intrinsic birefringence delta n0 (monomer) of a certain monomer of the cellulose acetate monomer and the intrinsic birefringence delta n0i of a certain conformational isomer of the monomer; s4, respectively solving the intrinsic birefringence contributions of 2, 3 and 6 acetyl groups; s5, obtaining substitution degree distribution of 2, 3 and 6 bits; and S6, constructing a CA birefringence function relationship, and solving theoretical birefringence. According to the method, a logical relationship is established between the substitution degree of hydroxyl and acetyl in each monomer conformation, the conformation ratio and the birefringence, a theoretical value that the birefringence of the cellulose acetate is closer to an actual value is obtained, and an effective method is provided for accurate prediction and regulation of optical performance.
Owner:SICHUAN UNIV +1

Wear inhibitor and lubricating oil composition

PendingUS20260193560A1Polymer scienceMeth-
The present invention aims to provide an anti-wear agent having a high anti-wear effect and a lubricating oil composition containing the anti-wear agent. The present invention relates to an anti-wear agent containing a copolymer (A) that contains, as essential constituent monomers: a monomer (a) represented by the following formula (1); and a monomer (b) represented by the following formula (2), a weight ratio (b / a) of the monomer (b) to the monomer (a) in the copolymer (A) being 0.0005 to 0.12, the formula (1) being as follows:wherein A1 is a polymerizable group; —X1—, —X2—, and —X3— are each independently a group represented by —O— or —NH—; R1 is a C1-C4 alkylene group; R2 is a C2-C20 alkylene group; R3 is a hydrogen atom, a linear or branched C1-C44 alkyl group, a phenyl group having a linear or branched C1-C44 alkyl group, an acyl group having a linear or branched C1-C44 alkyl group, or a benzoyl group having a linear or branched C1-C44 alkyl group; and p is an integer of 1 to 100, where when p is 2 or more, a plurality of R2's are the same as or different from each other and a plurality of X3's are the same as or different from each other, the formula (2) being as follows:wherein R4 is a hydrogen atom or a methyl group; —X4— is a group represented by —O— or —NH—; R5 is a C1-C4 alkylene group; and —X5— is a group represented by —O— or —NH—.
Owner:SANYO CHEM IND LTD

Resin composition for molding, and molded body

ActiveUS12545781B2Polymer sciencePolyolefin
The purpose of the disclosure is to provide a resin composition for molding, said resin composition exhibiting good compatibility with polyolefins and containing an ultraviolet absorbing polymer that is able to be purified at a low cost, and said resin composition being capable of forming a molded body that exhibits good transparency. A resin composition for molding containing a thermoplastic resin and an ultraviolet absorbing polymer, wherein: the ultraviolet absorbing polymer has a monomer unit represented by general formula (1), a monomer unit represented by general formula (2) and a thiol-based chain transfer agent residue; and the thiol-based chain transfer agent that forms the thiol-based chain transfer agent residue has a thiol group and one or more moieties that are selected from the group consisting of a carboxyl group, a hydroxyl group and an ester bond.
Owner:TOYOCOLOR CO LTD +1

Compositions and methods for creating reversibly crosslinked polymers

This invention relates to polymerizable compositions. Polymerizable compositions include -S n - A crosslinking agent comprising a moiety and having at least two polymerizable groups, wherein n is an integer from 1 to 8; one or more monomers having at least one C=C double bond capable of undergoing polymerization; and a polymerization initiator. The present invention further relates to a method for producing a reversibly crosslinked polymer by reacting components of a polymerizable composition, and to the resulting reversibly crosslinkable polymer and its reprocessing / recycling.
Owner:BRASKEM AMERICA INC

Monomer having functional group, heat-resistant polymer having rigid main chain using same, and manufacturing method therefor

PCT designated stageWO2026142077A1Polymer scienceIon exchange
The present invention relates to a monomer having a functional group, a heat-resistant polymer having a rigid main chain using same, and a manufacturing method therefor. Particularly, the present invention relates to a monomer having a pentafluorophenyl group of chemical formula 1, a heat-resistant polymer of chemical formulas 2 and 3 having the monomer of the present invention, and a manufacturing method therefor. According to the present invention, a novel polymer obtained by polymerizing a novel monomer of the present invention has a reactive group of reactive pentafluorophenyl, and thus may exhibit excellent reactivity and enable synthesis of polymers having an excellent polymerization degree by using a polyhydroxyalkylation polymerization method without a protective group. Due to such excellent reactivity, the polymer of the present invention can cause a nucleophilic substitution reaction under mild conditions, and thus an ion-exchange group, such as sulfonic acid or phosphonic acid, can be introduced under mild conditions through such a reaction. In addition, the novel polymer of the present invention has high heat resistance and chemical resistance and good tensile strength, and thus can be used as an engineering plastic. In addition, the novel polymer of the present invention can be imparted with ionic conductivity or other functionalities by introducing a phosphonic acid group or a sulfonic acid group into any one of fluoro positions of pentafluorophenyl of the polymer, and accordingly, may be used as an electrolyte membrane for a fuel cell or water electrolysis. [Chemical formula 1] [Chemical formula 2] [Chemical formula 3]
Owner:KOREA RES INST OF CHEM TECH

Carbomer resin as well as preparation method and application thereof

The invention relates to the technical field of high polymer materials, in particular to carbomer resin as well as a preparation method and application thereof. According to the invention, the monomer raw materials are pretreated and the cross-linking agent with a specific HLB value is selected, so that the problem of performance limitation of the traditional carbomer resin is solved; the monomer pretreatment reduces polymerization interference from the source; by regulating the HLB value of the cross-linking agent to 12-18, the cross-linking agent can be uniformly dispersed in an aqueous solution to form a 50-200nm uniform three-dimensional network, so that the water absorption expansion rate of the carbomer resin is remarkably improved, the viscosity fluctuation range within the pH range of 4-10 is less than or equal to 20%, and the basic performance stability is remarkably improved compared with that of a single cross-linking agent system.
Owner:WANHUA CHEM GRP CO LTD

POE (Polyolefin Elastomer) functional resin as well as preparation method and application thereof

The invention provides POE (Polyolefin Elastomer) functional resin as well as a preparation method and application thereof. The POE functional resin is prepared from the following raw materials in parts by weight: 100 parts of POE resin, 0.1 to 5 parts of first monomer alkoxy silane, 0.1 to 3 parts of second monomer polyvinyl siloxane and 0.05 to 0.5 part of initiator. The POE functional resin provided by the invention can solve the problems of low grafting rate, poor polarity increasing effect, low bonding strength, assistant migration and precipitation and the like in the existing POE grafted silane technology, and can achieve the technical effects of improving the silane monomer grafting rate, increasing the bonding force between POE and glass, improving the adhesive film strength and improving or solving the assistant migration and precipitation problem.
Owner:江苏虹景新材料有限公司 +1

Thermoplastic resin and optical lens including same

PCT designated stageWO2025254046A1Optical elementsPolymer scienceMeth-
The present invention can provide a thermoplastic resin including a structural unit (A) derived from a monomer represented by formula (1). (In formula (1), each R1 independently indicates a hydrogen atom, a methyl group, or an ethyl group.) A preferred embodiment of the present invention is said thermoplastic resin, wherein said monomer represented by general formula (1) is a compound represented by chemical formula (1-1), (1-2), or (1-3).
Owner:MITSUBISHI GAS CHEM CO INC