45results about How to "Excellent shelf life" patented technology

A sealing material for use in liquid-crystal dropping processes which has an excellent pot-life, has the excellent property of not contaminating liquid crystals, and enables the production of a liquid-crystal display of high picture quality; a vertical-conduction material; and a liquid-crystal display element. The sealing material for use in liquid-crystal dropping processes comprises a (meth)acrylic resin and / or a resin having a cyclic ether group and a heat-curing agent having a structure represented by the following general formula (1). [Chemical formula 1] (1) In the general formula (1), X is a structure represented by (CHR)n, wherein R represents OH and / or H and n is 0 to 3.

The present invention provides a pressure-sensitive adhesive composition which can form a pressure-sensitive sheet excellent in adhesive properties (adherability, easy peeling property at the time of high speed peeling, and re-peeling property) and the antistatic property and which has long pot life. The pressure-sensitive composition of the present invention is a pressure-sensitive adhesive composition comprising a (meth)acryl-based polymer composed of, as raw material monomers, a (meth) acryl-based monomer having an alkyl group of 1 to 14 carbon atoms and a hydroxyl group-containing (meth) acryl-based monomer, an alkali metal salt, and a catalyst having iron as an active center, wherein the hydroxyl group-containing (meth)acryl-based monomer is contained in an amount of 6 parts by weight or more to 100 parts by weight of the (meth) acryl-based monomer having an alkyl group of 1 to 14 carbon atoms.

A coating composition is prepared by blending a polyisocyanate curing agent, a weak solvent-soluble fluorine-containing copolymer and a weak solvent. The polyisocyanate curing agent is obtained by a reaction between an alicyclic polyisocyanate and a monoalcohol having 10-50 carbon atoms. The weak solvent-soluble fluorine-containing copolymer is a copolymer obtained from a fluoroolefin and a double bond-containing monomer copolymerizable with the fluoroolefin, and has a fluorine content derived from fluoroolefin of not less than 10% by mass. In this connection, 5-30% by mole of the double bond-containing monomer contains a hydroxy group, while 10-50% by mole of the double bond-containing monomer contains a branched alkyl group having 3 or more carbon atoms.

Provided is a thermally reversible cross-linked hot-melt adhesive which has good handling properties and storage stability, can be repeatedly melted by heating and solidified by cooling, and has highadhesiveness and good pot life. This hot-melt adhesive is obtained by melting and mixing a maleimide compound, having a maleimide group at a plurality of ends thereof, with a mixture of a star-branched-structure polyurethane resin having a furan ring at a plurality of ends thereof and a straight-chain polyurethane resin having a furan ring at both ends thereof. The hot-melt adhesive has, due to athermally reversible equilibrium reaction, a low viscosity when being melted by heating, and, after being solidified by cooling, forms a high molecular weight body having a three-dimensionally cross-linked structure, and therefore, is a resin having high cohesive force and high adhesiveness. The hot-melt adhesive does not react with moisture in the air and therefore can be stored in air, and is particularly suitable as a hot-melt adhesive for bookbinding.

The invention provides a polyurethane coating with high solid content and high weather resistance and a preparation method thereof. The polyurethane coating is prepared from a component A and a component B, wherein the component A is prepared from the following ingredients in parts by mass: 20 to 35 parts of polyester polyol resin, 10 to 20.5 parts of polyaspartic ester resin, 1 to 3 parts of wetting dispersant, 1.5 to 2.5 parts of thixotropic agent, 1 to 3 parts of ultraviolet absorbent, 3 to 4 parts of pigment and 35 to 50 parts of filler; the component B is prepared from the following ingredients in parts by mass: 20 to 60 parts of curing agent and 0.4 to 0.6 part of catalyst. The polyurethane coating with high solid content and high weather resistance provided by the invention has theadvantages of low VOC emission load, environment friendliness and no toxicity, meanwhile, the polyurethane coating has an excellent mechanical property and weather resistance, the construction potlife is good, the curing property at normal temperature is good, the range of application is wide, and the polyurethane coating is especially suitable for the industrial coating under special environments such as ships and ocean platform atmospheric regions.

The invention relates to printing lithography, in particular to a printing lithographic plate (UV-CTP) for laser digital scanning and the preparation method thereof. The preparation method of the printing lithographic plate (UV-CTP) comprises the following steps: firstly cleaning, neutralizing, electrolyzing and oxidizing aluminum plate strip materials and hole-sealing to obtain the plate base; then, spread-coating the prepared photosensitive coating liquid on the plate base through extruding; and obtaining the UV-CTP after drying. The UV-CTP plate, following the photosensitive CTP plate and the thermosensitive CTP plate, belongs to a novel plate which can be directly imaged through computer digital laser scanning without pretreatment. Compared with the conventional PS plate and CTP plate, the UV-CTP plate has the following characteristics and advantages that the aluminum plate rolling technique with low deformation rate and low surface defect ensures that the plate base of the plate has better physical properties, particularly, the UV-CTP plate is advantageous in manufacturing cost, preservation period and universality over other CTP plates; and the UV-CTP plate has the characteristics of high dot reducibility, high photosensitive speed, great operating latitude and wide application, etc., therefore, the UV-CTP plate is applicable to printing materials, such as metal, plastic, etc., by the UV ink.

A starch / phenolic resin composite adhesive is composed of, by weight, 162 parts of starch, 243-648 parts of water, 216-378 parts of polyvinyl alcohol water solution, 0.22-0.76 part of ammonium persulfate, 1.62-4.86 part of sodium hypochlorite, 47.1-94.1 parts of phenol, 40.6-162.3 parts of formaldehyde solution and 2-16 parts of sodium hydroxide.Compared with an isocyanate modified starch adhesive, the starch / phenolic resin composite adhesive has the advantages that performance of the adhesive prepared can be regulated, production cost can be lowered, and the adhesive has higher storage stability, longer pot life, excellent waterproofness and high bonding strength.

A copolymerized crystalline latent catalyst including the reaction product of: (a) at least one crystalline acrylate monomer; (b) at least one copolymerizable catalyst compound; (c) at least one initiator; (d) at least one chain transfer agent; and (e) optionally, at least one solvent to provide a polymerized latent catalyst composition; and a process for making the above latent catalyst.

An adhesive composition including a reaction mixture of: (A) at least one isocyanate-containing compound; (B) at least one polyol compound; and (C) a copolymerized crystalline latent catalyst; a process for making the above adhesive composition; and a laminate structure made using the above adhesive composition.

The application provides a polyaspartic acid coating composition, which comprises an aspartic acid ester compound and a polyisocyanate composition, and the polyisocyanate composition comprises a compound selected from the group consisting of aliphatic and / or alicyclic diisocyanate A polyisocyanate obtained from one or more diisocyanate monomers in the group, wherein the molar ratio x represented by the formula (1) is 0.05 or more and 0.5 or less, and the molar ratio d represented by the formula (4) is 0.02 or more and 0.5 or less, and the molar ratio e represented by the formula (5) is 0.02 or more and 0.5 or less. Molar ratio x=(B+C+D) / (A+B+C+D) (1) molar ratio d=D / (A+B+C+D) (4) molar ratio e=E / A ( 5) In the above formula, in the polyisocyanate composition, A represents the content of isocyanurate groups, B represents the content of iminooxadiazinedione groups, C represents the content of uretdione groups (mol%), D represents the content (mol%) of allophanate groups, and E represents the content (mol%) of biuret groups.