330 results about "Monomer composition" patented technology

The invention discloses a water-based acrylate pressure-sensitive adhesive emulsion as well as a preparation method and application thereof, and the preparation method comprises the following steps: S1, providing an acrylate pre-emulsion A and an initiator solution B; s2, dropwise adding a part of the acrylate pre-emulsion A into the initiator solution B, and carrying out a heating reaction to obtain a polymer A emulsion; s3, providing a monomer composition B, and mixing the rest of the acrylate pre-emulsion A and the monomer composition B to obtain an acrylate pre-emulsion B; and S4, dropwise adding the acrylate pre-emulsion B into the polymer A emulsion, and heating for reaction to obtain the water-based acrylate pressure-sensitive adhesive emulsion. The water-based acrylate pressure-sensitive adhesive emulsion prepared by the preparation method disclosed by the invention has relatively good adhesiveness, mobility and PVC shrinkage resistance after being coated on a PVC base material.

The invention relates to a preparation method of a halogen-free flame-retardant coating, in particular to a preparation method of a halogen-free flame-retardant polyacrylate coating for polyester fabrics, which comprises the following steps: (1) preparing a polyacrylate emulsion; (2) preparing a flame retardant dispersion liquid; (3) preparation of a flame-retardant coating: mixing the flame retardant dispersion liquid and a polyacrylate emulsion according to a weight ratio of (0.8-1.3): 1, stirring and mixing uniformly, and then adding a phosphorus-containing polyaziridine cross-linking agent, the weight ratio of the phosphorus-containing polyaziridine cross-linking agent to the polyacrylate emulsion being (0.01-0.05): 1; adjusting the pH value of the coating to 8-9 by using ammonia water with the concentration of 25%; the weight ratio of the hydroxypropyl methyl cellulose to the polyacrylate emulsion is (0.005-0.02): 1, and uniformly mixing the hydroxypropyl methyl cellulose and the polyacrylate emulsion to obtain the polyacrylate flame-retardant coating. The polyacrylate emulsion prepared by the invention has good monomer composition, and can ensure that the flame-retardant polyacrylate coating has good adhesion performance.

The invention provides a hydroxy acrylic emulsion with a core-shell structure, a rheology control agent containing the hydroxy acrylic emulsion as well as a preparation method and application of the hydroxy acrylic emulsion. The hydroxy acrylic emulsion is prepared by carrying out reverse emulsion polymerization on a monomer composition A used for forming an emulsion particle shell layer and a monomer composition B used for forming an emulsion particle core layer under the action of an initiator and an emulsifier. The rheology control agent for the automobile refinishing paint is also prepared by utilizing the prepared hydroxyl acrylic emulsion, and the acrylic emulsion added with the polymerizable emulsifier is matched with the clay stabilizer to generate a synergistic interaction effect, so that more excellent rheology control capability can be provided for the rheology control agent; and the high heat storage stability is provided, and the 1-2-year room temperature stable storage requirement of the automobile refinishing paint is met.

The invention provides a traditional Chinese medicine monomer composition for preventing and / or treating pulmonary fibrosis as well as a preparation and application thereof, and belongs to the technical field of biological medicines. The traditional Chinese medicine monomer composition comprises the following components: schisandrin B and platycodin D. The traditional Chinese medicine monomer composition can obviously reduce fiber cell and collagen deposition, relieve inflammatory cell infiltration, obviously reduce the lung coefficient, alveolar inflammation score and pulmonary fibrosis score, and recover the normal physiological structure of rat lung tissue. The traditional Chinese medicine monomer composition provided by the invention can reduce the expression contents of KL-6, MMP-7, SP-A and SP-D and lung tissue HYP in serum, and has the effects of relieving collagen deposition and alveolar epithelium injury, maintaining alveolar homeostasis and improving pulmonary fibrosis. Therefore, the traditional Chinese medicine composition provided by the invention is definite and reliable in curative effect and can be used for preparing medicines for preventing and / or treating pulmonary fibrosis.

The present disclosure relates to a monomer composition for preparing super absorbent polymer. Since the monomer composition for preparing super absorbent polymer of the present disclosure has rapid polymerization speed and thus can minimize bubble loss during blowing polymerization, it can provide super absorbent polymer having excellent absorption speed. And, since super absorbent polymer prepared from the monomer composition for preparing super absorbent polymer has high gel strength and thus maintains the shape well even after moisture absorption, it may exhibit excellent absorption performance in spite of external pressure.

A toner comprises a toner particle comprising a resin A and a resin B, wherein the resin A has a structure represented by a predetermined general formula, and the resin B has a monomer unit represented by a predetermined general formula, and a toner manufacturing method comprises a step of dispersing a toner base particle comprising the resin B in an aqueous medium to obtain a toner slurry, and a step of adding a radical polymerization initiator and a monomer composition comprising a monomer represented by a predetermined general formula to the resulting toner slurry to form the resin A on a surface of the toner base particle.

The invention belongs to the technical field of medicines, and provides application of a natural-source compound monomer medicine composition in preparation of medicines for preventing and / or treating pancreatitis. The pharmaceutical composition comprises baicalin, paeoniflorin, geniposide, wogonin, baicalein, albiflorin, tetrahydropalmatine, rhein, wogonin, aloe-emodin, saikoside A, emodin, benzoyl paeoniflorin, chlorogenic acid, costunolide, or a pharmaceutically acceptable salt thereof. Compared with the prior art, the pharmaceutical composition disclosed by the invention has the advantages that the components of the composition are definite and are all natural sources, the safety is good, the pharmaceutical effect has a remarkable synergistic effect, the administration dosage is reduced by about 200 times under the condition that the treatment effect is better than that of a compound traditional Chinese medicine, the administration mode of the compound medicine for treating pancreatitis is innovated, and the pharmaceutical composition is suitable for clinical application. A new scheme is provided for the treatment of the disease.

The invention discloses a hydrogenated cycloolefin copolymer, a hydrogenated cycloolefin resin composition and a preparation method thereof. Under the condition that the monomer composition and molecular weight of the hydrogenated cycloolefin copolymer are certain, the hydrogenated cycloolefin copolymer with more excellent performance can be obtained by controlling the hydrogenation reaction conditions of the hydrogenated cycloolefin copolymer. The hydrogenated cycloolefin resin composition provided by the invention not only has the characteristics of high refractive index, low haze and aging and yellowing resistance, but also obviously improves the separation efficiency of a catalyst, has excellent processability, and has outstanding application prospects in the fields of medical packaging materials, high-end photoelectric materials and the like.

An object of the present invention is to provide a solid substance, a molded article, and a method for producing the solid substance, which can form a molded article that is less likely to generate blisters due to ozone and has excellent ozone resistance. 【Solution means】The solid substance of the present invention is a powdery or pelletized solid substance containing a copolymer containing a unit A based on tetrafluoroethylene and a unit B based on a monomer selected from the group consisting of a monomer represented by the formula (1) (CF2=CF-O-(CF2) n -CF3) and a monomer represented by the formula (2) (CF2=CF-CF2-O-(CF2) n -CF3), wherein the total number of functional groups of -CF=CF2, -CF2H, -COF, -COOH, -COOCH3, -CONH2, and -CH2OH is less than 150 per 10 main chain carbons of the copolymer, and substantially does not contain a compound represented by the formula (3) (CF3-(CF2) 6 -COOH). n-1 ​

This application relates to liquid compositions comprising (meth)acrylate monomers and / or methacrylamide monomers and a solvent system comprising a mixture of aliphatic alcohols and alkylene carbonates. The liquid composition is useful as a monomer liquid component in two-part liquid-and-powder curable acrylic systems, in particular as used for the cosmetic treatment of fingernails and toenails. The invention further provides methods of forming a polymeric structure on a substrate, such as acrylic nail coatings, using the monomer liquid composition of the invention. The application further provides a novel additive for use in monomer liquid compositions.

The application discloses a preparation method of a partially fluorinated solid electrolyte and a lithium ion battery, and belongs to the field of electrode materials. The application proposes a partial fluorination strategy, and finds that by changing the ratio of monofunctional polymerizable acrylate monomers and bifunctional polymerizable acrylate monomers in a polymerization precursor liquid and the ratio of polymerizable fluorinated acrylate monomers in a polymerizable acrylate monomer composition, the mechanical properties and ionic conductivity of the finally obtained solid electrolyte can be controlled. The partially fluorinated solid electrolyte prepared by the preparation method provided by the application is stable and reliable, has higher safety, and has excellent mechanical properties and higher ionic conductivity. The partially fluorinated solid electrolyte provided by the application can be used for preparing a lithium ion battery with better safety performance and more excellent electrochemical performance.

Provided are: a binder in which the interface resistance between a current collector and an electrode material layer in a positive electrode of a sodium ion battery is reduced and battery characteristics are improved; and an electrode mixture, an electrode, and a secondary battery using the binder. A binder for a positive electrode of a sodium ion battery, the binder containing a copolymer having a vinylidene fluoride unit (A) and a structural unit (B) derived from at least one type of monomer selected from the group consisting of trifluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, a monomer represented by general formula (1), a monomer represented by general formula (2), and a monomer represented by general formula (3), and does not have a tetrafluoroethylene unit. [Formula 1] # imgabs0 # (In the formula, Rf1 is a linear or branched fluorinated alkyl group or fluorinated alkoxy group having 1-12 carbon atoms, and when both the fluorinated alkyl group and the fluorinated alkoxy group have 2 or more carbon atoms, an oxygen atom (-O-) may be included between carbon atoms. ) (In the formula, Rf2 is a linear or branched fluorinated alkyl group or fluorinated alkoxy group having 1 to 12 carbon atoms, and when both the fluorinated alkyl group and the fluorinated alkoxy group have 2 or more carbon atoms, an oxygen atom (-O-) may be included between carbon atoms. ) [chemical formula 3] # imgabs2 # (In the formula, R1, R2, and R3 are each independently a hydrogen atom, a chlorine atom, or an alkyl group having 1-5 carbon atoms. And X represents a single bond or an atomic group having a molecular weight of 500 or less and having a main chain comprising 1-20 atoms. And Y represents an inorganic cation and / or an organic cation).

An amido group-containing monomer composition contains 80.00 to 99.99 mass % of an amido group-containing monomer (a) of the following formula (1) and 0.01 to 20.00 mass % of a metal chelate complex (b) having carbonyl group as a ligand:wherein R1 represents a hydrogen atom or a methyl group, R2 represents a hydrocarbon group having a carbon number of 1 to 6, R3 represents a hydrocarbon group having a carbon number of 1 to 23, and R4 represents hydrogen or a methyl group.

The invention discloses a 3D printing polyurethane elastomer as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The polyurethane elastomer is composed of a prepolymer containing a dynamic hydrazide urea bond and a hindered urea bond and a monomer containing primary amine, the prepolymer takes polyether polyol and diisocyanate as basic raw materials, a dynamic hydrazide urea bond hard segment is introduced into the prepolymer through a hydrazide chain extender, a side chain is introduced through glycidyl methacrylate, and the primary amine-containing monomer is prepared. A dynamic hindered urea bond and a photocuring group are introduced through an acrylate end-capping reagent, and a reactive diluent and a photoinitiator are matched to optimize the forming performance. In the preparation process, a prepolymer and a primary amine-containing monomer are mixed and then subjected to 3D printing forming, in the low-temperature stage, reversible exchange of dynamic hydrazide urea bonds and hindered urea bonds is promoted to heal interlayer defects, and in the high-temperature stage, the hindered urea bonds are triggered to break and react with primary amine to form a stable cross-linked network. The 3D printing polyurethane elastomer has excellent rebound resilience, mechanical strength and hydrophobic effect.

The present invention relates to the field of photoresist technology, and more particularly to an aqueous liquid photosensitive photoresist and a preparation method thereof. The aqueous liquid photosensitive photoresist comprises the following raw materials, in parts by weight: 50-70 parts of an acrylic resin emulsion, 2-5 parts of a monomer composition, 8-12 parts of ethoxylated trimethylolpropane triacrylate, 3-6 parts of a photoacid generator, 0.5-1.5 parts of a thickener, 1-3 parts of a modified perfluoropolyether carboxylic acid ammonium, 0.2-0.4 parts of an anti-cratering agent, and 20-24 parts of deionized water. The aqueous liquid photosensitive photoresist prepared by the present invention has excellent etching resistance and high resolution, and the preparation method is simple.

A cyclic olefin copolymer includes a constituent unit (A) that is derived from an olefin monomer represented by Formula (1), and a constituent unit (B) that is derived from at least one cyclic olefin monomer selected from the group consisting of a cyclic olefin monomer represented by Formula (2) and a cyclic olefin monomer represented by Formula (3).

The invention discloses a high-temperature-resistant liquid crystal polymer substrate for ultrathin flexible display, which belongs to the technical field of flexible display and comprises a modified liquid crystal polymer and a functional additive dispersed in the modified liquid crystal polymer. The modified liquid crystal polymer is prepared by polymerizing a monomer composition, and is specifically prepared from 38 to 42 parts of p-hydroxybenzoic acid, 28 to 30 parts of 4, 4 '-biphenol, 5.6 to 6.0 parts of terephthalic acid, 4.4 to 5.0 parts of 2, 6-naphthalic acid, 2.7 to 3.3 parts of isophthalic acid, 9 to 11 parts of 2, 2-bis (3, 5-difluoro-4-hydroxyphenyl) hexafluoropropane, 4.5 to 5.5 parts of N, N'-dihydroxypyromellitic diamine, 9 to 11 parts of 9, 9-bis [4-(4-methoxycarbonyl phenoxy) phenyl] fluorene and 1, 2-bis (4-(4-methoxycarbonyl phenoxy) phenyl] fluorene. The component A is prepared from 5.5 to 6.5 parts of 1, 4-cyclohexanedimethanol; the functional additive comprises an azobenzene derivative, a hot acid generator and a hydrogen bond enhancer; through the synergistic effect of a specific monomer combination, a functional additive and an optimization process, the technical bottleneck that heat resistance, transparency, dimensional stability and flexibility of an existing material are difficult to consider at the same time is broken through.

Polyacrylate, characterized in that - the polyacrylate is based on the following monomer composition: a) 65 to 80 wt.% of at least one acrylic acid ester according to formula (I) CH2=CH-C(O)OR 1 (I), where R 1 represents a linear alkyl group having 1 to 4 C atoms; b) 10 to 20 wt.% of at least one acrylic acid ester according to formula (II) CH2=CH-C(O)OR 2 (II), where R 2 represents a phenoxyalkyl radical; c) 10 to 15 wt.% of at least one acrylic monomer according to formula (III) CH2=CH-C(O)OR 3 (III), where R 3 represents a hydrogen atom or a hydroxyalkyl radical with 1 to 4 carbon atoms: - the polyacrylate has a weight-average molecular weight of 600,000 to 1,200,000 g / mol; and - the polyacrylate was produced by free radical polymerization, ATRP, nitroxide / TEMPO-controlled polymerization or RAFT process.

The invention relates to the technical field of adhesive tapes, and discloses a preparation method of a foamed plastic adhesive tape with low odor, low VOC and high temperature resistance, and the foamed plastic adhesive tape sequentially comprises a transparent PET release film layer, a UV curing acrylic acid pressure-sensitive adhesive layer and a foamed plastic base material from top to bottom; the UV-cured acrylic pressure-sensitive adhesive layer is composed of an acrylic prepolymer, tackifying resin, a photoinitiator and a reactive diluting monomer. According to the preparation method of the foamed plastic adhesive tape with the low odor, the low VOC and the high temperature resistance, the foamed plastic adhesive tape adopts a three-layer structure of a transparent PET release film layer, a UV curing acrylic acid pressure-sensitive adhesive layer and a foamed plastic base material, the UV curing acrylic acid pressure-sensitive adhesive layer takes an acrylic acid prepolymer as a core, and is matched with an acrylic acid monomer diluent, tackifying resin and a photoinitiator; the adhesive layer is cured through the UV curing reaction, meanwhile, the sufficiency of UV curing is guaranteed through the transparent PET release film, residues of unreacted components are reduced, and the VOC emission and the odor level are reduced in combination with the characteristic of low volatile components of the pressure-sensitive adhesive layer.

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.

To provide a monomer composition comprising cyclocarbonate (meth)acrylate and glycerin tri(meth)acrylate that prevents the decomposition of glycerin tri(meth)acrylate during high-temperature storage and suppresses discoloration and thickening. [Solution] A monomer composition characterized by containing 94 to 99.8% by mass of a cyclocarbonate-containing (meth)acrylate (A) represented by formula (1), 0.01 to 5% by mass of glycerin tri(meth)acrylate (B), 0.001 to 0.5% by mass of a hydroxycarboxylic acid or its salt (C) with a molecular weight of 500 or less, and 0.0001 to 0.5% by mass of a polymerization inhibitor (D). JPEG2026047828000010.jpg3599 (In formula (1), R 1 is H or CH3, and R 2 is H or an alkyl group having 1 to 4 carbon atoms, R 3 (This refers to an alkylene group with 1 to 4 carbon atoms.)

Compositions and methods for inhibiting and retarding polymerization of monomeric compositions are described that use a naphthoquinone and an oxygenated aminophenol. When present in a monomer-containing composition, the combination of naphthoquinone and oxygen-containing aminophenol provides an unexpectedly beneficial anti-polymerization agent effect, thereby inhibiting the formation of unwanted fouling polymers. The anti-polymerization agent combination can be added to a hydrocarbon composition, such as petroleum, that can include a polymerizable component, such as styrene, wherein the hydrocarbon composition is purified or processed, such as under distillation.

The present invention relates to a monomer composition for producing a superabsorbent resin. Since the monomer composition for producing a superabsorbent resin of the present invention has a high polymerization rate and can minimize the loss of bubbles during foamed polymerization, it can provide a superabsorbent resin having an excellent water absorption rate. In addition, the superabsorbent resin produced from the monomer composition for producing a superabsorbent resin of the present invention has a high gel strength and maintains a good form even after water absorption, so it can exhibit excellent water absorption performance despite external pressure.

The utility model belongs to the technical field of bridge construction, and particularly relates to an auxiliary temporary pier column for viaduct girder erection construction, which comprises a supporting main body, an auxiliary supporting body is arranged at the top of the supporting main body, and the supporting main body and the auxiliary supporting body form the auxiliary temporary pier column; the supporting body is composed of a plurality of supporting single bodies, the supporting single bodies are gradually increased from top to bottom, the top of each supporting single body is provided with a protruding part, the bottom of each supporting single body is provided with an inserting groove, and in every two adjacent supporting single bodies, the protruding part of the lower supporting single body is inserted into the inserting groove of the upper supporting single body; the auxiliary supporting body is composed of a plurality of auxiliary supporting single bodies, the bottom of the lowermost auxiliary supporting single body is provided with a clamping groove connected with the protruding part in a clamped mode, and the top of the uppermost auxiliary supporting single body is provided with a limiting groove for limiting the air cylinder. According to the pier column, the splicing height of the supporting body can be set according to actual requirements, construction is convenient, an original pier does not need to be punched, the pier column can be sequentially dismantled and recycled after construction is completed, and the pier column can be repeatedly used.

The present application relates to a resin composition for a molding device for tooth restoration. The resin composition comprises 10 to 50 parts by weight of a polyurethane acrylate oligomer having a functionality of no more than 4, 20 to 40 parts by weight of an acrylate monomer containing a morpholine group, 10 to 40 parts by weight of a polymerizable acrylate monomer composition, and 0.5 to 5 parts by weight of a photoinitiator, wherein the polymerizable acrylate monomer composition comprises 40 to 60 parts by weight of an alicyclic acrylate monomer and 40 to 60 parts by weight of an aliphatic acrylate monomer having an ether bond. The resin composition has a Shore hardness of no less than 70D and a bending strain of no less than 0.15 after curing. When applied to a molding device for tooth restoration, the resin composition can have high shape and dimensional accuracy, and can be easily demolded and completely removed without breaking after the tooth restoration is completed.

The present invention is directed to a plastic extension for a nail covering and a nail applique kit including at least one plastic extension, an adhesive including a UV gel a cyanoacrylate, a free radical curable monomer composition or a PSA and an optional processing aid.

The invention discloses a nuclear magnetic resonance hydrogen spectrum method for directly analyzing a high molecular weight hyaluronic acid structure and quantitative monomer composition. The method comprises the following steps: S1, dissolving a high-molecular-weight hyaluronic acid sample in D2O, adding NaOD, and uniformly mixing to obtain a sample solution; the concentration of the hyaluronic acid sample in the D2O is 0.5 to 2 mg / mL; the final concentration of the NaOD in the sample solution is 75 mmol / L; s2, performing a nuclear magnetic resonance hydrogen spectrum test on the sample solution to obtain a nuclear magnetic resonance hydrogen spectrum spectrogram; and S3, obtaining an integral area proportion of a hydrogen atom characteristic peak from the nuclear magnetic resonance hydrogen spectrum so as to directly quantify the composition molar ratio of the two monomers of the high-molecular-weight hyaluronic acid. The method provided by the invention not only can realize direct structural characterization of the high molecular weight HA, but also can realize direct quantification of the composition proportion of the two monosaccharides, and the quantitative result is high in precision and reproducibility.

This invention relates to a monomer composition for preparing superabsorbent polymers. The superabsorbent polymer is then incorporated into an absorbent article. The monomer composition for preparing superabsorbent polymers of this invention has a fast polymerization rate and therefore can minimize bubble loss during foam polymerization, thus providing a superabsorbent polymer with excellent absorption rate. Furthermore, the superabsorbent polymer prepared from the monomer composition for preparing superabsorbent polymers has high gel strength and therefore maintains its shape well even after water absorption, thus exhibiting excellent absorption performance despite external pressure.

The application relates to the technical field of polymers, and discloses a kind of polypropylene and its application, a kind of method and device for continuously preparing polypropylene.The method comprises the following steps: (1) introducing a first monomer composition into a first reactor to carry out a first polymerization reaction in the presence of catalyst I, to obtain a first stream; (2) introducing the first stream and a first part of a second monomer composition into a second reactor to carry out a second polymerization reaction in the presence of catalyst II, to obtain a second stream; (3) introducing the second stream and a second part of the second monomer composition into a first gas-phase reactor to carry out a third polymerization reaction, to obtain a third stream; (4) introducing the third stream and a third part of the second monomer composition into a second gas-phase reactor to carry out a fourth polymerization reaction.The polypropylene material prepared by the method has good shear resistance and dimensional stability, and also has excellent aging resistance.