102results about How to "Excellent photocurability" patented technology

A curable composition for photoimprints containing a photopolymerizable monomer and a photopolymerization initiator, wherein the proportion of the compound having a molecular weight of at most 190 in the composition is at most 20% by mass, and the viscosity of the composition is from 3 to 50 mPa·s at 25° C., is excellent in patterning accuracy.

The invention relates to a preparation method of a liquid light-cured solder resist ink and photosensitive resin thereof, and relates to the technical field of printed circuit board solder resist ink. According to the preparation method of the photosensitive resin in the solder resist ink, acrylic acid and epoxy resin are first subjected to a ring-opening reaction, such that an intermediate epoxy acrylate is obtained; the epoxy acrylate is subjected to a ring-opening reaction with anhydride, such that carboxylation-modified epoxy acrylate resin is obtained. The epoxy resin which is subjected to the ring-opening reaction with acrylic acid is at least one selected from E12, E12A, E13, E14, ECN268, ECN273 and ECN280. Because the carboxylation-modified epoxy acrylate resin has good light curing capacity and appropriate diluted alkali water solubility, the liquid light-cured solder resist ink with the carboxylation-modified epoxy acrylate resin as photosensitive resin has relatively high resolution, and can resolve lines under 40mum. Also, the solder resist ink provided by the invention also has good adhesion to substrates, good acid resistance, good alkali resistance and good solvent resistance.

The present invention provides a composition and the photo curing property, closing property, demoulding property, residual film property, pattern shape, screening character (I), screening character (II) and etching property of which are all excellent. The photo-curing composition according to the invention includes the following components: (a) a polymerized compound, (b) a photopolymerization evocating agent and / or photo-acid generating agent with the mass percentage between 0.1 to 15 percent, (c) at least one surfactant selected from fluorine-containing surfactant, siloxane surfactant and fluorine-containing siloxane surfactant, besides (d) the viscosity of the composition is between 3 to 18 Pa*s at 25 degree centigrade, wherein, the (a) polymerized compound contains (e) a polymerized unsaturated monomer and the skin initial stimulus index (PII value) of which is below 4.0, and the (f) a polymerized unsaturated monomer and the viscosity of which is below 30 mPa*s at 25 degree centigrade, and the content of the polymerized unsaturated monomer is above 50 mass percentage, (wherein, the polymerized unsaturated monomer of the (e) and the polymerized unsaturated monomer of the (f) can be the polymerized unsaturated monomer which are same at some parts or totally).

A photocurable resin composition for support regions for use in photochemical fabrication by an inkjet method, which has low viscosity and outstanding photocurability, and where the support regions, formed by the photocuring, have good supporting performance and, following the end of the photochemical fabrication, can readily be removed from the main body by dissolving in water and / or by a weak external force such as a water jet. The photocurable resin composition for support regions for use in photochemical 3D fabrication by the inkjet method contains, based on the total mass of photocurable resin composition, from 2 to 20 mass % of N-hydroxyalkyl (meth) acrylamide, from 2 to 20 mass % of (meth) acryloyl morpholine, from 3 to 30 mass % of (meth) acrylate compound having at least one (meth) acryloyloxy group, from 40 to 90 mass % of polyhydroxy compound containing two or more hydroxyl groups, and from 0.1 to 5 mass % of a photo-radical polymerization initiator.

The present invention provides a photo curable and heat curable resin composition, the condensate of which and the printed circuit board. The composition includes the following components: (A-1) a carboxyl-containing photosensitive resin which is reacted by the reaction product and polyol acid anhydrides (d), and the reaction product is reacted by epoxides (a) and compound (b) and the monocarboxylic acid (c) containing undersaturated groups, (A-2) a carboxyl-containing photosensitive resin which is reacted by the compound (e) containing phenolic hydroxyl group reacted to the oxiranes (f) or cyclic carbonates compound (g), and the monocarboxylic acid (c) containing undersatruated groups and polyol acid anhydrides (d), (A-3) random one of the carboxyl-containing photosensitive resins which are reacted by the reaction product and the polyol acid anhydrides (d), and the reaction product is reacted by the linear polyfunctional epoxides (h) and the monocarboxylic acid (c) containing undersatruated groups; and (B) a carboxylated urethane (methyl) acrylic ester compound; (C) a photopolymerization evocating agent; (D) heat curable component; and (E) a diluent.

The invention provides a good combination which has the photocurablity, sealing property, mold release, residual film, pattern figure, coating properties and the etching adaptation. The invention adopts a curable combination used for nano impressing photoetching, which is characterized by comprising 88-99 mass% of polymerized unsaturated monomer, 0.1-11 mass% of photopolymerization initiator and at least one of a 0.001-5 mass% of surfactant containing fluorin, a siloxane surfactant and a fluorin-siloxane surfactant. The polymerized unsaturated monomer comprises one 1-functional group polymerized unsaturated monomer of not less than 10 mass%, wherein the 1-functional group polymerized unsaturated monomer has a portion containing the olefinic unsaturated bond and a portion containing at least a heteroatom.

A curable composition for photoimprints comprising a photopolymerizable monomer, a polymerization initiator and a compound of the following formula (1), wherein the content of compounds having a molecular weight of at least 1000 is at most 10% by mass of all the solid content therein, and the content of the compound of the formula (1) is from 0.3 to 10.0% by mass of all the solid content therein:wherein Z represents an aliphatic hydrocarbon group; R1 and R2 represent a hydrogen atom or a substituent; R3 and R4 represent a methyl group, an ethyl group, a methoxy group or an ethoxy group; and R5 represents a methoxy group or an ethoxy group.

Disclosed is an active energy ray-curable coating composition which is characterized by comprising: (a1) an acrylic acid ester of a non-cyclic oligosaccharide or a derivative thereof, which has an weight average molecular weight of 400 to 2,000 and contains 3.0 to 12.0 acryloyl groups on average per molecule; and (a2) a photopolymerization initiator. The active energy ray-curable coating composition is a bio-derived active energy ray-curable coating composition, and can form a coating film having excellent finished appearance, pencil hardness, scratch resistance, weather resistance and solvent resistance.

The invention provides a synthetic method of resin with mixing and solidification functions. The synthetic method of the resin with the mixing and the solidification functions comprises the steps that 80-110 g of polyisoprene dibasic alcohol, 4-10 g of 3-ethyl-3-hydroxymethyleneoxetane, 5-12 g of hydroxyl acrylate, 0.1 g of polymerization inhibitor para hydroxybenzene methyl ether and 0.01 g of catalyst dibutyltin dilaurate are added into a three-mouth flask with a thermometer, the temperature is raised to 65 degrees, then 18-32 g of diisocyanate starts to be dropwise added, the temperature is controlled to be 70-75 degrees, and reaction is performed for 2-3 h. The content of NCO perssad is analyzed by an infrared spectrometer, until the NCO peak disappears completely, the heating reaction is stopped, and the urethane acrylate modified by oxetane can be obtained. The resin with the mixing and the solidification functions can manufacture three-dimensional products with low shrinking percentage, low warping, good flexibility, ageing resistance, high machining precision, good photocuring performance and excellent mechanical strength; in addition, the synthetic reaction is simple in technology and easy to control, no special equipment is needed to be used, no solvent is needed, and the production cost is low.

The invention discloses a copolymer gel, a 4D micro-nano printing material, and a printing test method. The copolymer gel comprises: reactants comprising a functional monomer N-isopropyl acrylamide and acrylic acid; a cross-linking agent DPEPA; a photosensitizer triethanolamine; and a photoinitiator EMK. According to the present invention, the hydrogel-based 4D micro-nano printing material especially has good photocuring performance and good heterogeneous swelling property to two-photon 780 nm femtosecond laser, can print complex three-dimensional micro-nano structures with submicron precisionin photoresists without supporting materials, and can achieve the controlled deformation from three-dimensional to three-dimensional by designing the local difference in the structure under the stimulation of the pH value, the organic solvent and the temperature.

An actinic energy ray-curable resin is obtained by reacting (c) an epihalohydrin with hydroxyl groups of a linear epoxy resin (A') which is a product of the polyaddition reaction of (a) a bifunctional hydrogenated bisphenolic epoxy compound with (b) a compound having at least two carboxyl groups in its molecule to obtain a polynuclear epoxy resin (A'') having epoxy groups in its terminal and side chain and further reacting (d) an unsaturated monocarboxylic acid with an epoxy group of the polynuclear epoxy resin (A'') to introduce a photopolymerizable unsaturated group therein and further reacting (e) a polybasic acid anhydride with a hydroxyl group of the polynuclear epoxy resin to introduce a carboxyl group therein. A photocurable and thermosetting resin composition capable of being developed with an aqueous alkaline solution is obtained by mixing this actinic energy ray-curable resin with a photopolymerization initiator, a diluent, and a polyfunctional epoxy compound. The resultant photocurable and thermosetting resin composition is useful as a solder resist for a printed circuit board, interlaminar insulating materials for a multi-layer printed circuit board, and the like.

Disclosed is a photocurable silicone gel composition formed from 100 parts by mass of an organopolysiloxane (A) having at least one or more of a group shown by general formula (1), a mercaptoalkyl group-containing organopolysiloxane (B) in parts by mass such that the number of moles of the mercaptoalkyl group forms 0.01 - 1.0 moles per mole of the group for (A) shown in general formula (1), 0.01 - 20 parts by mass of a photopolymerization initiator (C) per 100 parts by mass of component (A), and 0.001 - 10 parts by mass of a hindered amine (D) compound having a group shown by general formula (2) per 100 parts by mass of component (A). (In general formula (1) R1 - R2 indicate hydrogen or C1-20 alkyl group.) (In general formula (2), R3 - R6 indicate hydrogen or a C1-20 alkyl group, and R7 indicates hydrogen or -CH2-R8 (R8 indicating hydrogen or a monovalent organic group).).

The invention relates to a high abrasion-resistant UV (ultraviolet) white primer for electrostatic spraying. The high abrasion-resistant UV white primer is prepared from the following raw materials in parts by weight: 40 to 70 parts of epoxy acrylic resin, 15 to 35 parts of hydroxy acrylic resin, 10 to 20 parts of thermoplastic acrylic resin, 15 to 30 parts of tripropylene glycol diacrylate, 5 to 25 parts of modified graphene, 2 to 6 parts of nanometer silicon dioxide, 1 to 5 parts of nanometer titanium dioxide, 1 to 5 parts of heavy calcium carbonate, 5 to 15 parts of montmorillonite, 10 to 20 parts of white pigment, 2 to 5 parts of zinc stearate, 2 to 6 parts of carboxymethyl cellulose sodium, 1 to 5 parts of polyamide wax, 0.5 to 2 parts of flatting agent, 0.1 to 0.5 part of defoaming agent, 2 to 6 parts of photoinitiator, and 5 to 15 parts of organic solvent. The high abrasion-resistant UV white primer for electrostatic spraying has the advantage that at the premise of ensuring the good electrostatic spraying effect, the anti-sagging property of the primer and the abrasion-resistant property of the primer film are greatly improved.

The invention relates to a high-temperature-resistant solder resist ink composition, which comprises an alkaline water soluble compound, epoxy resin and an unsaturated double-bond compound, wherein the alkaline water soluble compound is an alkaline water soluble compound containing carboxyl and unsaturated double-bond in the same molecule, wherein the alkaline water soluble compound accounts for 20-80% (in percentage by weight) of the composition, the epoxy resin accounts for 3-20% of the composition; the unsaturated double-bond compound is a compound containing at least one unsaturated double-bond in the molecule, and the unsaturated double-bond compound accounts for 2-15% of the composition. The composition can be cleaned by a rare alkaline water solution without a photocuring condition,so that a perfect high-temperature-resistant solder resist ink coating film is obtained.

The present invention provides a photocurable and thermosetting resin composition having excellent surface curability and deep curability, allowing pattern formation with a laser beam having a wavelength of 350 to 410 nm, and being useful as a solder resist for laser direct imaging, the composition including a carboxylic resin (A), an oxime ester-based photopolymerization initiator (B) such as 2-(acetyloxyiminomethyl)thioxanthene-9-one, and another photopolymerization initiator than (B) such as 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide, and a sulfur compound (E) such as 2-mercaptobenzothiazole.

A photocurable inkjet printing ink composition includes at least a photopolymerizable compound component and a photopolymerization initiator, wherein in the photopolymerizable compound component, a monofunctional monomer is included in a content of 91.0 to 99.5% by mass and a multifunctional monomer is included in a content of 0.5 to 9.0% by mass; in the monofunctional monomer component, acryloylmorpholine is included in a content of 30.0 to 85.0% by mass; the monofunctional monomer component includes at least one selected from benzyl acrylate, ethyl carbitol acrylate, tetrahydrofurfuryl acrylate and phenoxyethyl acrylate in a content of 5.0 to 40.0% by mass in the monofunctional monomer component; and the stretching rate at 180° C. of the cured coating obtained by photopolymerizing the photocurable inkjet printing ink composition is 120% or more.

The present invention provides a polymerizable composition that exhibits high photocurability not only in the case of using a halogen lamp-curing unit but also in the case of using an LED light-curing unit, hardly has discoloration even when stored for a long time, and when applied to a dental material, a cured product of which has high bond strength to a tooth structure. The present invention is a polymerizable composition including: a photopolymerization initiator composition containing a photopolymerization initiator component consisting of only a bisacylphosphine oxide (A) and α-diketone (B), and tertiary amine (C); and a polymerizable monomer (D). A weight ratio (A):(B) between the bisacylphosphine oxide (A) and the α-diketone (B) is 1:9 to 9:1, and a weight ratio (D):(C) between the polymerizable monomer (D) and the tertiary amine (C) is 100:0.5 to 100:10.

The present invention provides a sealing agent for liquid crystal dropping methods, which has excellent photocurability and is capable of suppressing liquid crystal contamination. The present invention also provides a vertically conducting material and a liquid crystal display element, each of which is produced using the sealing agent for liquid crystal dropping methods. The present invention is a sealing agent for liquid crystal dropping methods, which contains a curable resin and a photopolymerization initiator, and wherein the photopolymerization initiator contains a compound represented by formula (1) and an oxime ester compound so that the weight ratio of the compound represented by formula (1) to the oxime ester compound is from 1:3 to 1:100. In formula (1), each of R1 and R2 represents a hydrogen atom or an -NR3 2 group, and R1 and / or R2 represents an -NR3 2 group; and each R3 represents a hydrogen atom or an alkyl group having 1-4 carbon atoms. In this connection, the R3 moieties may be the same as or different from each other.

The invention discloses resin monomer skeleton-derivative ketone compounds with the structural formula of I to IV, comprising aminoketone compounds, thioxanthone compounds, benzophenone compounds, hydroxyketone compounds and benzoinketal compounds. The compounds are jointly characterized by being converted from common resin monomer structure so as to obtain chemical structure compatible with resin. The compounds can be used as photoinitiator for the photopolymerization of olefin unsaturated compounds or mixture containing the olefin unsaturated compounds.

The present invention relates to a photo-curable resin composition and, more particularly, to a photo-curable resin composition for forming micro patterns, the photo-curable resin composition being applicable to a flexible display substrate since the composition can be cured at high speed and has excellent coating properties, adhesive properties and acid resistance by virtue of comprising acrylamide monomer.

The invention relates to a method for preparing a polyester-type alkaline-water-soluble photocuring resin. The method comprises the following steps: (1) carrying out reaction on dibasic acid anhydride and dibasic alcohol in the presence of at least one organic solvent to obtain a carboxyl-containing polyester compound; (2) carrying out partial esterification reaction on the obtained carboxy polyester compound and an epoxy-group-containing alkene unsaturated monomer in the presence of a polymerization inhibitor and a catalyst to obtain the polyester-type alkaline-water-soluble photocuring resin, of which the branched chain contains unsaturated double bonds and the main chain contains carboxyl. Besides, the invention also relates to a polyester-type alkaline-water-soluble photocuring resin prepared by the method and a photoinduced imaging agent prepared from the polyester-type alkaline-water-soluble photocuring resin. The method is simple, convenient and controllable. The obtained polyester-type alkaline-water-soluble photocuring resin has excellent photocuring property and alkaline water solubility. The photoinduced imaging agent prepared from the photocuring resin has the advantages of high resolution, high adhesive force and high stripping speed.

The invention relates to a photocuring nano hybrid material with photocuring reactive groups, and preparation and application thereof. Siloxane with photocuring reactive groups (also called photosensitive groups) is subjected to hydrolytic polycondensation under proper conditions to obtain the photocuring nano hybrid material with photocuring reactive groups. The photocuring nano hybrid material contains abundant photocuring reactive groups, has favorable solubility and dispersity, can effectively improve the curability of the photocuring paint, and can also effectively improve the mechanical properties of the photocuring paint.

Shown are: a photocurable inkjet ink containing 3 to 60 wt % of a compound (A2) that has a skeleton structure consisting of at least three benzene rings and at least one group selected from the following organic groups a, wherein all bonds between the benzene rings are formed through one of the groups, and that has at least one group selected from the following organic groups d that are bonded to the benzene rings, and 1 to 60 wt % of a compound (B) represented by the following formula (7) or (8); a microlens obtained by photocuring the photocurable inkjet ink; a laminate obtained by forming the microlens on a liquid-repellent cured film; an optical component having the laminate; and an image display device including the optical component.

Provided is an ultraviolet light curing urethane acrylate composition with excellent ultraviolet light curing properties without containing a photo polymerization initiator, and that can be used for optical applications that require high transparency. The present invention is an ultraviolet light curing urethane acrylate composition containing (E) a urethane acrylate oligomer having a (meth)acryloyl group on the terminal of a molecule obtained by addition reaction of (D) a (meth)acrylate compound having a hydroxide group to (C) a urethane polymer having an isocyanate group on the terminal of a molecule obtained by reacting (A) a polyol that does not have an aromatic backbone and (B) a polyisocyanate that does not have an aromatic backbone; wherein the composition further contains 0.2 to 80 mass% of (F) at least one type of organic solvent that does not have an aromatic backbone, selected from the group consisting of ketone solvents, amide solvents, and alkyl halide solvents; and wherein the composition does not contain a photo polymerization initiator.

A curable composition for photoimprints, comprising a (meth)acrylate compound represented by the following formula (1):wherein R1 and R2 represent a hydrogen atom or a methyl group; X represents a single bond or an aliphatic group; n and m indicate an integer of 1 or more, has a low viscosity and a high transfer patterning accuracy and gives a cured film excellent in scratch resistance and adhesiveness.

This invention is a liquid-crystal-display-element sealant containing a curable resin, a thioxanthone-based polymerization initiator that can be represented by formula (1), and an amine-based sensitizer. In formula (1), n represents a number from 1 to 6; R3 represents a hydrogen atom or the like; A represents the group -O-, the group -[O(CHR2CHR1)a]y-, the group -[O(CH2)bCO]y-, or the group -[O(CH2)bCO](y-1)-[O(CHR2CHR1)a]-; R1 and R2 represent hydrogen atoms or the like; a is either 1 or 2; b is either 4 or 5; Q represents (poly)ethylene glycol, (poly)propylene glycol, (poly)butylene glycol, glycerin, trimethylolpropane, ditrimethylolpropane, pentaerythritol, dipentaerythritol, or a caprolactone polyol residue; a free hydroxyl group within Q may be esterified; x represents a number that is greater than 1 but does not exceed the number of hydroxyl groups in Q; and y represents a number from 1 to 10.

The invention belongs to the technical field of UV curing coatings, and particularly relates to a preparation method of a waterborne hyperbranched polyurethane acrylate emulsion, a UV curing coating and a preparation method and application of the UV curing coating. The UV-curable coating is prepared from the following raw materials in percentage by weight: 60 to 80 percent of waterborne hyperbranched polyurethane acrylate emulsion, 0.05 to 0.1 percent of a defoaming agent, 0.5 to 2 percent of a dispersing agent, 2 to 6 percent of a photoinitiator, 1 to 5 percent of modified nano powder, 0 to 10 percent of an environment-friendly solvent, 1 to 3 percent of an adhesion promoter, 1 to 3 percent of an anti-settling agent and 0.3 to 1 percent of a wetting leveling agent. 0.5-1.5% of a thickening agent and 4-10% of a pigment filler; the invention further provides a preparation method of the UV curing coating for a polypropylene packaging barrel. The UV curing coating for the polypropylene packaging barrel, prepared by the invention, has excellent wear resistance and relatively high adhesive force on the polypropylene packaging barrel, and has excellent weather resistance.

The invention provides a dispersing agent which has the advantages of high dispersibility as well as high light-solidification property and high adhesion on a base material during film coating. In the dispersing agent, a light-solidified resin is used, and the light-solidified resin is obtained by the method as follows: adding a diisocyanate compound (A) into a compound (B) which has one or two hydroxyl groups in the same molecular and has a number-average molecular weight of 300-5000 and a compound (C) which has two hydroxyl groups and two ehtylenic bond type unsaturated groups in the same molecular; and then carrying out Michael addition in a compound (D) which has active hydrogen and tert-amino in the same molecular.

A photocurable sheet-form material which comprises (a) a polymerizable unsaturated monomer, (b) a polymer which is either polymethyl methacrylate or a high-molecular polymer consisting mainly methyl methacrylate units and which is compatible or swollen with the polymer (a), (c) a photocuring agent, and (d) a fibrous reinforcement. It is excellent in productivity, handleability, and photocurability. This photocurable sheet-form material is usable for producing a layered molding and forming a backup layer (reinforcing layers) of a molded article, and is a useful material as a replacement protective material for pipes, covering material, lining material, fixing material, or the like.

The invention provides a photo- and thermo-curable resin composition, which has the advantages of excellent light cured property and excellent thermally cured property. The composition is irradiated, part of the composition is not irradiated, then the composition is heated, the composition including the non-cured part is completely cured, a cured object with a high bonding strength is formed, and the stability of the cured object is good during the storage. The provided resin composition comprises (1) a compound containing a (methyl)acryloyl group; (2) a polyene compound wherein one molecule of the polyene compound comprises at least two vinyl groups or allyl groups; (3) a polymercaptan compound, wherein one molecule of the polymercaptan compound comprises at least two thiol groups; (4) an optical free radical generator; (5) a heat free radical generator; and (6) a heat negative ion polymerization initiator.