37 results about "Ethyl phosphonate" patented technology

Provided are: a radiation curable ink jet composition which is capable of obtaining a coating film having low viscosity and excellent adhesion; and an ink jet method. The radiation curable ink jet composition includes polymerizable compounds and a photopolymerization initiator, the polymerizable compounds include a monofunctional monomer, a content of the monofunctional monomer with respect to a total mass of the polymerizable compounds is 90 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate.

The invention belongs to the technical field of fine chemicals, and in particular relates to a synthetic method of bis(2-methoxyphenyl)phosphine oxide, which comprises the following steps: a) reacting anisole and triethyl phosphate in a solvent , to obtain bis(2-methoxyphenyl) ethyl phosphonate; b) the bis(2-methoxyphenyl) ethyl phosphonate is hydrogenated and reduced in a solvent to obtain bis(2-methoxy phenyl)phosphine oxide. The present invention takes anisole as the starting material, first reacts with triethyl phosphate to obtain bis(2-methoxyphenyl) ethyl phosphonate, and then synthesizes bis(2-methoxyphenyl) through hydrogenation reduction ) phosphine oxide, the method has simple reaction, high conversion rate, excellent product quality, and the content of bis(2-methoxyphenyl) phosphine oxide produced is more than 98%, which satisfies the technology of producing relevant polyketone ligands in the market Requirements, and the operation steps are simple, the required equipment is simple, and the energy consumption is low.

Disclosed is an anti-UV LED light decay, radiation cross-linked polyethylene insulating material, and a preparation method thereof. The raw materials comprise a matrix resin, a specific photoinitiator, a specific photoinitiator aid, and a specific multi-functional group crosslinking aid. The matrix resin is composed of polyethylene resin, a light-transmitting resin, and an ethylene-vinyl acetate copolymer. The preparation method comprises weighing each raw material in accordance with a formula, mixing and stirring the polyethylene resin, the specific photoinitiator, the specific photoinitiator aid and the specific multi-functional group crosslinking aid to prepare a premix, mixing the premix with the remaining raw materials, and extruding same to form and obtain an insulating material. The insulating material of the present invention can be processed at a low temperature, and has a sufficient degree of crosslinking without the need to reduce the extrusion speed.

The invention discloses a preparation method of a functionalized magnetic adsorption material, which is characterized in that: ethyl 2,5-dihydroxy-1,4-phenylene diphosphonate and / or 2,5-dihydroxyphenylphosphonic acid Add diethyl ester to solvent A, add nano-ferric oxide, react under certain temperature conditions, and obtain the reacted material; cool the reacted material, filter and separate, wash the solid with solvent B, and dry to obtain the functional magnetic adsorption material. The functionalized magnetic adsorption material prepared by the present invention has a porous structure, is formed by sparsely stacking spherical particles, and has abundant functional groups such as hydroxyl groups and phosphorus oxygen groups; the functionalized magnetic adsorption material prepared by the present invention has the advantages of simple synthesis, low cost, It has the advantages of good selectivity, large adsorption capacity, and easy collection after adsorption. It can be actually used for the adsorption, enrichment or removal of uranium in aqueous solution, and has strong practicability.

The invention discloses a high-efficiency thick copper plate solder resist printing method. The ink used in the high-efficiency thick copper plate solder mask printing method is mainly composed of the following quality raw materials: 3,4-epoxycyclohexyl methacrylate, amide resin, titanium dioxide, 3-methacryloyloxypropyl Trimethoxysilane, propylene glycol methyl ether acetate, 2,4,6-trimethylbenzoyl phenylphosphonate ethyl ester, the interaction between these substances makes the ink have good curing performance, adhesion, and excellent Excellent heat resistance, weather resistance, and fast curing speed.

The invention relates to a high-adhesion and high-gloss black UV inkjet ink, which comprises the following components in parts by weight: 10-20 parts of black color paste, 10-20 parts of urethane acrylate resin, 50-70 parts of reactive diluent, 6 to 10 parts of photoinitiator and 3 to 4 parts of auxiliary; wherein, the active diluent includes the first active diluent, the second active diluent and the third active diluent, in parts by mass, the dosage ratio of the three is 2~3:1~2:2~3; the photoinitiators are 1-hydroxy-cyclohexyl benzophenone, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide and 2,4,6 -At least one of ethyl trimethylbenzoyl phenylphosphonate; auxiliary agents include defoamer, leveling agent, adhesion promoter and polymerization inhibitor. The present invention also provides a preparation method and application of the above-mentioned high-adhesion and high-gloss black UV inkjet ink. The black UV inkjet ink of the invention has the advantages of high gloss value, good adhesion and high hardness.

The invention relates to a preparation method of 2,4,6-trimethyl benzoyl phenyl ethyl phosphonate, and in particular relates to a method for preparing 2,4,6-trimethyl benzoyl phenyl ethyl phosphonate through the steps of carrying out substitution condensation reaction on dichlorophenyl phosphine and ethanol to obtain an intermediate; performing condensation reaction on the intermediate and 2,4,6-trimethyl benzaldehyde under an alkaline condition, and finally performing oxidation by using an oxidant under catalysis of a catalyst. The preparation process of 2,4,6-trimethyl benzoyl phenyl ethyl phosphonate, disclosed by the invention, has the advantages as follows: the influences of an acidic medium on the intermediate can be avoided; the requirements of the condensation reaction between 2,4,6-trimethyl benzaldehyde and phenyl ethyl hypophosphite for reaction equipment can be reduced; meanwhile, the reaction yield can be ensured; the preparation process is simple in operation and is suitable for industrial production.

The purpose of the present application is to provide: a radiation curable inkjet composition having a low viscosity and a high degree of freedom in monomer design; and an inkjet method. The radiation curable ink jet composition includes polymerizable compounds; and a photopolymerization initiator, the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by the following general formula (I), a content of the vinyl ether group-containing (meth)acrylate with respect to a total mass of the radiation curable inkjet composition is 15 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate. H2C=CR<1>-CO-OR<2>-O-CH=CH-R<3>(I)In the above formula, R<1> represents a hydrogen atom or a methyl group, R<2> represents a divalent organic residue having 2 to 20 carbon atoms, and R<3> represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms.