31 results about "Tetrahydrofurfuryl methacrylate" patented technology

The present disclosure provides photocurable compositions comprising 20-90% by weight of a polymerizable core resin; 20-90% by weight of a diluent resin miscible with said core resin; and at least about 1 % by weight of at least one rheology modifier which is distinct from said diluent resin. Rheology modifiers of the present disclosure include compounds which may form covalent bonds with the core resin or diluent resin and compounds which have a particle size of 1-200 nm. Rheology modifiers which may form covalent bonds have at least one terminal functional group selected from the group consisting of acrylates, methacrylates, epoxides, oxetanes, nitriles, alkenes and alkynes. In a preferred embodiment, tetrahydrofurfuryl methacrylate, methacryl polyhedral oligomeric silsesquioxane (i.e. POSS) cage and PEG POSS cage molecules are employed as the rheology modifiers.

The present disclosure provides a method of making an article particularly a dental article having a desired color, the method comprising the steps of: (a) providing a color array, said array comprising a plurality of distinct color points, each color point being independently composed of a resin mixture comprising one or more master batch resins; (b) comparing the desired color with the color points on the color array and selecting a color point that substantially corresponds to the desired color of the article; (c) identifying the resin mixture corresponding to said selected color point; and (d) making the article using said identified resin mixture. The embodiments include the preparation of master batch resins comprising mainly bisphenol A dimethacrylate, polyethylene glycol) di acrylate, tetrahydrofurfuryl methacrylate, phenylbis(2,4,6 trimethyl benzoyl)phosphine oxide and 2,5-bis(5-tert-butyl-benzoxazol-2-yl)thiophene, as well as the preparation of 36-color array by mixing the master batch resins at different ratios.

An adhesive exhibits superior adhesive strength on adhesive-resistant materials such as olefin elastomer substrates when cured at a comparatively high temperature of 35 DEG C, and is hot water resistant. A two-pack adhesive comprises (A) a primary agent containing (1) isobornyl methacrylate and (2) at least one type of monocyclic methacrylate selected from a group including phenoxyethyl methacrylate, tetrahydrofurfuryl methacrylate, and cyclohexyl methacrylate, and (B) an initiator containing an organoborane, with the adhesive containing from 40 to 200 parts by mass of the monocyclic methacrylate per 100 parts by mass isobornyl methacrylate.

Adhesive compositions comprising tetrahydrofurfuryl (meth)acrylate copolymers; epoxy resins; polyether polyols; and hydroxyl-functional film-forming polymers are described. The adhesives are useful in structural and semi-structural bonding applications.

The present invention provides a release agent for a reactive hot melt resin, the release agent being characterized in that in the Hansen solubility parameter, the dispersion component ([delta]D) falls within the range 14.0-21.0 MPa0.5, the dipole-dipole force component ([delta]P) falls within the range 0-10.5 MPa0.5, and the hydrogen bonding component ([delta]H) falls within the range 0-13.5 MPa0.5. This adhesive for a reactive hot melt resin is preferably one or more solvents selected from the group consisting of benzoic acid esters, tetrahydrofurfuryl alcohol and tetrahydrofurfuryl (meth)acrylate. This reactive hot melt resin preferably contains an isocyanate group-containing urethane prepolymer, and the content of urethane bonds in the urethane prepolymer preferably falls within the range 0.1-3 mol / kg.

The present invention relates to a process for preparing an aqueous polymer dispersion comprising: preparing a dispersant co-polymer of a monomer mixture (M) by polymerising the monomer mixture (M) in a reaction medium which is substantially free from organic solvents and / or substantially free from monomers which are not soluble in water, the monomer mixture (M) comprises at least one cationic vinyl monomer (m3) and at least one monomer (m4) which is tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, or a monomer of the general formula (I): wherein R1 is hydrogen or methyl, R2 is hydrogen or C1-C2 alkyl, R3 is hydrogen, C1-C4 alkyl, phenyl, or benzyl, n=1 to 4, and x=1 to 50, and then, polymerising one or more water-soluble monomers (m) in an aqueous solution of a salt in the presence of the obtained dispersant polymer. The invention also relates to an aqueous polymer dispersion, use of the dispersion and a process for the production of paper.

The invention discloses an acrylic ester adhesive for power battery encapsulation and relates to the field of acrylic ester structural adhesives. The acrylic ester adhesive comprises 1 part of an oxidizing agent and 0.5 to 3 parts of a reducing agent, wherein the oxidizing agent comprises 40 to 60 parts of tetrahydrofurfuryl methacrylate, 5 to 10 parts of methyl methacrylate, 5 to 10 parts of chlorosulfonated polyethylene, 1 to 5 parts of trimethylolpropyltriacrylate, 0.5 to 3 parts of a stabilizing agent, 5 to 8 parts of isopropyl benzene hydroperoxide and 2 to 4 parts of fumed silica; and the reducing agent comprises 40 to 60 parts of tetrahydrofurfuryl methacrylate, 5 to 10 parts of methyl methacrylate, 5 to 10 parts of SBS, 1 to 4 parts of thiourea, 0.5 to 3 parts of N,N-dihydroxyethyl-p-toluidine, 1 to 6 parts of methacrylic acid, 0.5 to 2 parts of a stabilizing agent, 2 to 4 parts of fumed silica and 1 to 3 parts of a defoaming agent. The acrylic ester adhesive for power battery encapsulation is low in heat release during use, the internal structure of the adhesive after encapsulation molding is uniformly, air holes and ripple are avoided, and the safe reliability of the battery can be improved.

The present invention describes an adhesive article comprising a foamed adhesive layer and a non-foamed adhesive layer. The adhesive of each adhesive layer comprises a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and optionally a hydroxyl-functional film-forming polymer. Adhesives are available in structural and semi-structural bonding applications and are designed to fail cohesively.

The present invention relates to a process for preparing an aqueous polymer dispersion which comprises polymerising one or more water-soluble monomers in an aqueous solution of salt in the presence of a dispersant polymer, wherein the dispersant polymer is a co-polymer of a monomer mixture (M) comprising at least one cationic monomer and at least one monomer which is tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, or a monomer of the general formula (I) wherein R1 is hydrogen or methyl, R2 is hydrogen or C1-C2 alkyl, R3 is hydrogen, C1-C4 alkyl, phenyl, or benzyl, n= 1 to 4, and x = 1 to 50, where, the monomer mixture (M) is being substantially free from monomers which are not soluble in water and / or the dispersant polymer is obtainable by polymerising the monomer mixture (M) in a reaction medium which is substantially free from organic solvents. The invention also relates to an aqueous polymer dispersion, use of the dispersion and a process for the production of paper.

The invention relates to a preparation method of an efficient diesel pour point depressant, belonging to the technical field of oil additives. The preparation method comprises the following preparation processes: mixing the following raw materials: wisteria flower, hydrolyzed polymaleic anhydride, a maleic anhydride grafted vinyl acetate copolymer, amino trimethylene phosphonic acid, tetrahydrofurfuryl methacrylate and the like according to a certain proportion, extracting, stirring for carrying out a reaction, carrying out condensation, and the like so as to obtain the efficient diesel pour point depressant. The efficient diesel pour point depressant prepared by the method is excellent in pour point depression effect, and can obviously reduce the diesel pour point, improve low temperature fluidity and improve the diesel quality. The product prepared by the method is wide in applicability, good in storage safety and good in economic benefit, thus having a wide application prospect.

The invention discloses an acrylic structural adhesive bonded to an aluminum shell of a flame-retardant power battery, which comprises an oxidizing agent component and a reducing agent component, and the volume ratio of the oxidizing agent component and the reducing agent component is 1:1; the oxidizing agent component Including isobornyl methacrylate, 2-phenoxyethyl acrylate, 3,3,5-trimethylcycloethane methacrylate, nitrile rubber, methyl methacrylate-butyl acrylate Block copolymers, flame retardants, peroxides and stabilizers; reducing agent components include tetrahydrofurfuryl methacrylate, isooctyl methacrylate, 2‑hydroxyethyl methacrylate phosphate, terminal Carboxyl-modified neoprene, methyl methacrylate-butyl acrylate diblock copolymer, flame retardant, substituted thiourea, cobalt naphthenate, additives and stabilizers. The invention also discloses a preparation method. When the invention is in use, the heat release is low, no air holes and lines appear on the surface of the adhesive layer, and it can also play a role of flame retardancy, effectively improving the safety and reliability of the battery.

The present disclosure provides a two-part adhesive capable of adhering over a wide temperature range near room temperature and exhibiting excellent adhesion on poorly adhering substrates including silicone rubber and the like strength. In some embodiments, the binary adhesive comprises: a main agent comprising phenoxyethyl methacrylate and tetrahydrofurfuryl methacrylate; and an initiator comprising organoborane; wherein the relative Based on the mass of the polymerizable component, the main ingredient contains 60% to 95% by mass of phenoxyethyl methacrylate.

The problem to be solved by the present invention is to provide an active energy ray-curable ink that is compatible with plastic substrates represented by plastic substrates even when tetrahydrofurfuryl (meth)acrylate, tetrahydrofurfuryl alcohol, etc. are not contained or their contents are small. The adhesion performance of various substrates is also excellent. The present invention solves the above-mentioned problems by utilizing an active energy ray-curable ink characterized by containing a polymerizable compound (A) having a specific structure.