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413 results about "Monomer composition" patented technology

Wash-off label

The specification relates to a wash-off label (100, 200) comprising a face (101, 301) and a pressure sensitive adhesive (102, 302) adjoined to the face, wherein the face (101, 301) comprises corona discharged filmic material and the pressure sensitive adhesive (102, 302) has a composition including at least one acrylic polymer comprising acrylic monomer(s) and / or non-acrylic comonomer(s) having a carbonyl group capable of undergoing a crosslinking reaction, amount of the acrylic monomer(s) and / or non-acrylic comonomer(s) having a carbonyl group capable of undergoing a crosslinking reaction being from 0.1 to 5 wt. % of monomer composition, and a crosslinking agent with dihydrazide functionality, amount of the crosslinking agent being from 20 to 150% with respect to the amount of the carbonyl groups capable of undergoing a crosslinking reaction. The wash-off label (100, 200) is detachable from a surface when exposed to an alkaline washing solution at a temperature of 85 degrees C. the detachability being such that the pressure sensitive adhesive (102, 302) remains attached to the face (101, 301). Further, the specification relates to a labelled item and use of the wash-off label for labelling an item. Still further, the specification relates to a label laminate web and a method of manufacturing the wash-off label as well as to a pressure sensitive adhesive composition for a wash-off label.
Owner:UPM RAFLATAC OY

Water-based acrylate pressure-sensitive adhesive emulsion as well as preparation method and application thereof

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.
Owner:ETERNAL MATERIALS (GUANGDONG) CO LTD

Hybrid olefinic compositions comprising resin compositions polymerizable by addition or condensation polymerization reactions

The invention relates to hybrid compositions comprising at least one cyclic olefin monomer composition: at least one resin composition polymerizable by addition or condensation polymerization; and, optionally, at least one additive. The invention also relates to articles of manufacture made from the hybrid compositions of the invention, and methods of making the articles. The invention also relates to coating compositions comprising the hybrid compositions of the invention, and to objects or substrates coated with the coating compositions of the invention, which may then be cured. The invention also relates to methods of coating the objects or substrates with the coating compositions of the invention. The invention further relates to the use of the hybrid compositions of the invention as adhesives.
Owner:EXXONMOBIL PRODUCT SOLUTIONS CO

Preparation method of halogen-free flame-retardant coating for polyester fabric

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.
Owner:SHENYANG UNIVERSITY OF TECHNOLOGY

Hydroxyl acrylic emulsion with core-shell structure, rheology control agent containing hydroxyl acrylic emulsion as well as preparation method and application of hydroxyl acrylic emulsion

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.
Owner:NIPPON PAINT CHINA

Traditional Chinese medicine monomer composition for preventing and / or treating pulmonary fibrosis as well as preparation and application thereof

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.
Owner:HEILONGJIANG UNIV OF CHINESE MEDICINE

Monomer Composition for Preparing Super Absorbent Polymer

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.
Owner:LG CHEM LTD

Natural monomer composition and application thereof in hair-blacking products

The invention provides a natural monomer composition and application thereof in hair-blacking products, and belongs to the technical field of hair blacking. The composition comprises naringenin and luteolin in a mass ratio of (10: 1)-(1: 10), the two components have an obvious synergistic effect on hair blackening, and the composition is suitable for being prepared into a natural monomer product which is simple in formula, exact in effective component, safe and effective and has the hair blackening effect and has a wide market prospect.
Owner:JINAN UNIVERSITY

Toner and method for manufacturing toner

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.
Owner:CANON KK

Application of natural-source compound monomer composition in preparation of injection medicine for preventing and / or treating pancreatitis

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.
Owner:FIRST AFFILIATED HOSPITAL OF DALIAN MEDICAL UNIV

Fabric flame retardant and preparation method thereof

The invention relates to a fabric flame retardant and a preparation method thereof. The fabric flame retardant is obtained by polymerizing a monomer composition, and the total weight of the monomer composition is 100%. Comprising the following components in percentage by weight: 15 to 30 percent of alkenyl amino triazine comonomer, 5 to 20 percent of polyalkenyl siloxane comonomer, 5 to 15 percent of alkenyl sulfonyl propylidene diacetamide comonomer, 2 to 10 percent of allyl polyoxyethylene ether comonomer and 40 to 65 percent of deionized water. The flame-retardant effect of the fabric finished by the flame retardant can reach B1 level, the fabric is soft and smooth in hand feeling, the fabric surface is not separated out and is not sticky in the storage process, and the color yield is uniform. And the flame retardant is phosphorus-free, halogen-free, formaldehyde-free, safe and environment-friendly.
Owner:SHANGHAI YAYUN TECHNOLOGY CO LTD

High purity sulfonated thiophene monomer

The present invention relates to a monomer composition comprising at least one functionalized thiophene monomer having the structure (I) wherein X1 and X2, independently of each other, represent O or S; x3 represents-CH2-O-in which a carbon atom is bonded to R1, or represents-O-; r1 represents a trivalent organic group; r2 represents a divalent organic group; m1 represents a monovalent cation; wherein the monomer composition is substantially free of an unsaturated organic sulfonic acid having the structure (II) wherein R3 represents a divalent organic group; m2 represents a monovalent cation; or wherein the monomer composition comprises an unsaturated organic sulfonic acid having the structure (II) in a maximum amount such that the molar ratio of the total amount of unsaturated organic sulfonic acid having the structure (II) to the total amount of functionalized thiophene monomer having the structure (I) is 1: 32 or less. The invention also relates to a process for the preparation of functionalized pi-conjugated polythiophenes, the functionalized pi-conjugated polythiophenes obtainable by this process, polymer compositions comprising functionalized pi-conjugated polythiophenes, a process for the preparation of lamellar bodies, lamellar bodies obtainable by this process, and methods for the preparation of functionalized pi-conjugated polythiophenes. And the use of the monomer composition or the polymer composition according to the invention for producing an electrically conductive layer in an electronic device. # imgabs0 #
Owner:HERAEUS EPURIO GMBH

A gray polymer dispersed liquid crystal film and preparation method thereof

ActiveCN116203753BTotal light transmittance differenceThe difference in total light transmittance increasesLiquid crystal compositionsNon-linear opticsMonomer compositionLiquid crystal
The present invention discloses a gray polymer dispersed liquid crystal film and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a blue-violet dye liquid crystal A, an orange dye liquid crystal B, and a blue dye liquid crystal C; (2) mixing the blue-violet dye liquid crystal A, the orange dye liquid crystal B, and the blue dye liquid crystal C uniformly to form a gray dye liquid crystal; (3) uniformly mixing the gray dye liquid crystal with a polymer monomer composition to form an isotropic liquid crystal mixture at room temperature; (4) mixing the liquid crystal mixture with glass microbeads and sandwiching them between two transparent conductive films, rolling to form a liquid crystal film; and then curing the liquid crystal film. The gray polymer dispersed liquid crystal film has a large total light transmittance difference between the power-on state and the power-off state; so that when it changes between the transparent state and the frosted state, it has a significant color depth change, which can meet high-demand application scenarios.
Owner:SHANGHAI MEMBRANE NEW MATERIAL TECH CO LTD

Hydrogenated cycloolefin copolymer, hydrogenated cycloolefin resin composition and preparation method thereof

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.
Owner:WANHUA CHEM GRP CO LTD

Secondary battery

The purpose of the present invention is to improve the life of a battery using a negative electrode comprising a metal by reducing the amount of gas generation, reducing the resistance, and reducing the amount of metal elements such as Mn and Ni deposited in a positive electrode in the negative electrode. A secondary battery having a liquid electrolyte and a negative electrode in which a fluoropolymer is laminated on a layer containing a metal, the secondary battery being characterized in that: the metal is at least one type selected from the group consisting of lithium, sodium, magnesium and zinc; the fluoropolymer is a copolymer having a vinylidene fluoride unit (A) and a structural unit (B) of at least one monomer selected from the group consisting of tetrafluoroethylene, trifluoroethylene, chlorotrifluoroethylene, a monomer represented by general formula (1), a monomer represented by general formula (2), and a monomer represented by general formula (3), and the liquid electrolyte contains a fluorinated ether. [chemical formula 1] # imgabs0 # [chemical formula 2] # imgabs1 # [chemical formula 3] # imgabs2 #
Owner:DAIKIN INDUSTRIES LTD

Solid matter, formed body, and method for manufacturing solid matter

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 ​
Owner:AGC INC

Pressure-sensitive adhesive with improved chemical stability

The invention relates to a pressure-sensitive adhesive comprising: a) one or more poly(meth)acrylates with a weight-average molecular weight Mw of 200,000 g / mol or more in a combined mass fraction of 50% or more, in relation to the mass of the pressure-sensitive adhesive, and b) one or more bonding resins with a weight-average molecular weight Mw of 20,000 g / mol or less in a combined mass fraction in the range of 1 to 25%, in relation to the mass of the pressure-sensitive adhesive, the one or more bonding resins being producible by polymerisation of a first monomer composition comprising, in relation to the mass of the first monomer composition: i) one or more first monomers, which are selected from the group consisting of aromatic (meth)acrylates and styrene, in a combined mass fraction in the range of 5 to 40%, ii) one or more second monomers, which are selected from the group consisting of methyl methacrylate and ethyl methacrylate, in a combined mass fraction in the range of 35 to 68%, and iii) one or more third monomers, which are selected from the group consisting of (meth)acrylates with a cycloaliphatic group, in a combined mass fraction in the range of 5 to 40%.
Owner:TESA SE

Traditional Chinese medicine monomer composition for treating rheumatoid arthritis and application

The invention provides a traditional Chinese medicine monomer composition for treating rheumatoid arthritis and application, and belongs to the technical field of traditional Chinese medicine preparations. The traditional Chinese medicine monomer composition is prepared from triptolide and medipterocarpin. In the implementation process, it is accidentally found that the triptolide and the mediodine have a synergistic effect when combined use of low concentration is used for inhibiting osteoclast differentiation, and due to the combined effect disclosed by the research result, the triptolide and the mediodine have the application prospect of being developed into the medicine for treating rheumatoid arthritis in the form of the composition.
Owner:CHINA JAPAN FRIENDSHIP HOSPITAL

Liquid monomer compositions

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.
Owner:MAKEVALE GROUP LTD

Preparation method of a partially fluorinated solid-state electrolyte and lithium ion battery

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.
Owner:PEKING UNIV

Positive electrode binder, electrode mixture, electrode, and secondary battery

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).
Owner:DAIKIN INDUSTRIES LTD

Amido group-containing monomer composition and method for improving storage stability of amido group-containing monomer

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.
Owner:NOF CORP

3D printing polyurethane elastomer as well as preparation method and application thereof

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.
Owner:SHENZHEN SAPIENCE TECH CO LTD

Aqueous liquid photosensitive photoresist and preparation method thereof

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.
Owner:GUANGZHOU HESHENG HIGH TECH MATERIALS CO LTD

Cyclic olefin copolymer, cyclic olefin copolymer composition, molded body, and optical component

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).
Owner:MITSUI CHEMICALS INC

High-temperature-resistant liquid crystal polymer substrate for ultrathin flexible display

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.
Owner:GUIZHOU IND VOCATIONAL & TECH COLLEGE

Polyacrylate and pressure-sensitive adhesive based on it

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.
Owner:TESA SE

Preparation method of foamed plastic adhesive tape with low odor, low VOC (volatile organic compound) and high temperature resistance

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.
Owner:KUNSHAN INAUTEK AUTOMOTIVE COMPONENTS CO LTD