624results about "Polycarbonate coatings" patented technology

Disclosed are weatherable multilayer articles comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive layer comprising a polyurethane, and (iv) a substrate layer, wherein the coating layer is in contiguous superposed contact with the second layer, and the adhesive layer is in contiguous contact with the second layer and the substrate layer. Also disclosed is a method for making the multilayer article.

The invention belongs to the technical field of preparation of release coatings and discloses a water-based heat transfer printing release coating, and a preparation method and application thereof. The water-based heat transfer printing release coating comprises the following ingredients by mass percent: 40-60 percent of water-based resin, 8-15 percent of a coalescing agent, 0.3-2 percent of a scratch-resistant anti-wear agent, 0.05-0.2 percent of a foam killer, 0.2-0.6 percent of other additives and the balance of water, wherein the water-based resin is at least one of polyurethane resin, polyacrylic acid resin, polycarbonate, polymide resin, polyethersulfone resin, epoxy resin, thermoplastic polyester resin, a styrene-maleic anhydride copolymer and phenolic resin. According to the invention, application of the water-based formula to preparation of the water-based heat transfer printing release coating is realized, the material prescription is environment-friendly, and the preparation process is safe and environment-friendly. Compared with a conventional solvent product, the water-based heat transfer printing release coating is better in heat resistance, high in glossiness and better in printing ink adhesion, effectively enhances the printing ink protecting function and can be kept colorful in a long term.

A thermosetting coating composition comprising: (a) a polymer selected from a polyester, a polycarbonate, a polyamide, and an epoxy and (b) a curable benzoxazine-based phenolic resin comprising the reaction product of: (i) a phenol compound, (ii) an aldehyde, and (iii) a polyamine having at least one primary amine and at least one secondary amine.

The invention provides a compound antimicrobial agent containing an inorganic antimicrobial agent and an organic antimicrobial agent, wherein the inorganic antimicrobial agent is metal salt and/or metallic oxides with antimicrobial activity; the organic antimicrobial agent is a composition the formation of which is shown in an above formula (I) and/or formula (II) and is one or several of pyridines, wherein R1 and R2 showed in the formula (I) and the formula (II) are alkyls with the number of hydrogen atoms or carbon atoms from 1 to 8. The invention also provides an antimicrobial coating composition containing the compound antimicrobial agent and antimicrobial coating materials using the antimicrobial coating composition. The compound antimicrobial agent is prepared by a very simple method and can achieve the very favorable antimicrobial effect by only simply mixing the inorganic antimicrobial agent and the organic antimicrobial agent of the compound antimicrobial agent.

The invention discloses a method for preparing a cellulose ester grafted aliphatic polyester copolymer. The method comprises the following steps: 1) preparing a cellulose / ionic liquid solution by using cellulose as a raw material; 2) conducting a homogeneous acylation reaction of cellulose in the cellulose / ionic liquid solution to obtain partially substituted cellulose ester; and 3) further grafting aliphatic polyester to the partially substituted cellulose ester to obtain cellulose ester grafted aliphatic polyester copolymer. Compared with the existing method, the method has obvious advantages that cellulose with wide source is directly used as raw material to prepare the cellulose ester grafted aliphatic polyester copolymer by a one-pot reaction, without separation and purification of intermediate cellulose ester, and that the entire production process is greatly simplified, and has simple production process and easy operation. The cellulose ester grafted aliphatic polyester copolymer product produced by the method provided by the invention can be used for spinning, film making and molding parts, and also can be used as a compatibilizer for coating, paint, polymer and composite material.

The invention discloses a carbonate polymer with a disulfur five-membered ring functional group on a side chain and an application thereof. The polymer is obtained by active ring opening polymerization from a cyclic carbonate monomer containing the disulfur five-membered ring functional group; the polymer is controllable in molecular weight, narrower in weight molecular distribution and free from protecting and deprotecting process. The polymer obtained by active ring opening polymerization of the cyclic carbonate monomer has biodegradability and can be used for controlling a drug release system; a reduction-sensitive reversible crosslinking nano medicine carrier targeting tumor supports long circulation in vivo but is highly enriched in tumor cells and is quickly crosslinked to release medicine in cells so as to efficiently kill the tumor cells with specificity. Meanwhile, the carbonate polymer has an application prospect in aspects such as tissue engineering scaffolds and biochip coatings and the like.

The invention provides a decorative sheet including at least a surface protective layer on a substrate, in which the surface protective layer includes a cured material of an ionizing radiation curable resin composition at least containing a polycarbonate(meth)acrylate (A) and a multi-functional (meth)acrylate (B) in a mass ratio (A)/(B) of (98/2)-(70/30). The invention also provides a decorative sheet including at least a surface protective layer on a substrate, in which the surface protective layer includes a cured material of an ionizing radiation curable resin composition at least containing an acrylic silicone (meth)acrylate (C) and a multi-functional (meth)acrylate (B) in a mass ratio (C)/(B) of (50/50)-(95/5). The present invention provides a decorative sheet with a surface protective layer having scratch resistance as well as three-dimensional formability.

The invention discloses a method for preparing poly(monothiocarbonate). According to the method, carbon oxysulfide and oxygen-containing monomers are used as raw materials; a catalysis system consisting of initiators and Lewis acid is used; after the bulk polymerization or solution polymerization, poly(monothiocarbonate) is obtained; the oxygen-containing monomers are selected from at least one kind of materials of epoxy compounds, oxetane and 3-substituted oxetane; the initiators are selected from quaternary ammonium salt, quaternary phosphonium salts or organic alkali. The preparation method of synthesizing the poly(monothiocarbonate) through anion ring-opening polymerization by using a catalytic system formed by at least one kind of materials from quaternary ammonium salt, quaternary phosphonium salts or organic alkali, and the Lewis acid; the poly(monothiocarbonate) with the specific chain structures can be obtained through preparation. The catalysis system can be obtained only through compounding; the metal residue and color residue problems do not exist.

The present invention relates to a method for preparing ultrahydrophobic high-molecular coating layer coated on the surface of solid by utilizing phase separation film-forming technique in the volatilizing process of noncrystalline high molecular in solvent under the normal temperature and normal pressure. Said method includes: dissolving noncrystalline high molecule in poor solvent at normal temperature, said solution concentration is 0.001-5 g/ml, then coating said poor solvent in which the noncrystalline high molecule is dissolved on the surface of solid to form film, making the solvent be volatilized and making noncrystalline high molecular soltue and poor solvent implement slow phase separation, finally forming rough ultrahydrophobic high-molecular coating layer on the surface of solid. Said invented ultrahydrophobic surface has good anticoagulant property.

An article comprises a substrate; a polymer coating; and an intermediate layer disposed between the substrate and the polymer coating, the intermediate layer comprising a carbon composite, wherein the carbon composite comprises carbon and a binder containing one or more of the following: SiO₂; Si; B; B₂O₃; a metal; or an alloy of the metal; and wherein the metal comprises one or more of the following: aluminum; copper; titanium; nickel; tungsten; chromium; iron; manganese; zirconium; hafnium; vanadium; niobium; molybdenum; tin; bismuth; antimony; lead; cadmium; or selenium.

A light cured alkali resistant coating is prepared from (by wt%) solid high polymer 10-30, light curing resin 10-70, reactive diluent 8-40, photoinitiator 0.5-5, assistant 0.1-2, and solvent in balance. The invention introduces solid high polymer into preparation raw material of current UV-light cured coating, and on the basis of original frame of UV-light cured coating, utilizes network structure constructed by solid high polymer acrylate high molecular chain, to thereby improve comprehensive anti-corrosive property of light cured coating effectively, especially improve alkali resistance of coating under thin coating condition.

The invention relates to a perovskite quantum dot membrane, a quantum dot diffusion composite membrane and a preparation method of the quantum dot diffusion composite membrane. According to the perovskite quantum dot membrane, one side of a base material is coated with a green light-emitting perovskite quantum dot layer, and the structural formula of perovskite quantum dots is CH3NH3PbClxBr3-x (0<=x<=1); the perovskite quantum dot layer is composed of the perovskite quantum dots, polymers, adhesion promoter and additives. The perovskite quantum dot membrane introduces the adhesion promoter tothe polymers to form intermediate bridge effects between the resin coating and the base material of the polymers and further to enhance adhesion; the other side of the green light-emitting perovskitequantum dot membrane is coated with a light diffusion layer to form a green light-emitting quantum dot diffusion composite membrane, and by combining the back light source design of blue LEDs (light emitting diode) and KSF red fluorescent powder, the green light-emitting quantum dot diffusion composite membrane achieves the combined effects of light conversion and light diffusion and accordingly can replace a light diffusion membrane during application to a backlight module.

An optical filter is provided with an absorbing layer containing a near-infrared ray absorbing pigment the absorption characteristics of which in dichloromethane satisfy the following conditions: - An absorption spectrum of 400 nm - 800 nm contains a maximum absorption wavelength [lambda]max between 670 nm and 730 nm. - The maximum extinction coefficient [epsilon]A for light of wavelength 430 nm - 550 nm, and the maximum extinction coefficient [epsilon]B for light of wavelength 670 nm - 730 nm have the following relationship: [epsilon]B / [epsilon]A >= 65 - In a spectral transmittance curve, the difference is 65 nm or less between the maximum absorption wavelength [lambda]max, and the wavelength [lambda]80 the transmittance of which is 80 % in the wavelengths shorter than the maximum absorption wavelength in the case where the transmittance in the maximum absorption wavelength [lambda]max is 10 %.

The invention belongs to the field of antibacterial polymer materials and a processing method thereof, and particularly relates to a polyaniline composite antibacterial plastic as well as a preparation method and application thereof. The antibacterial plastic comprises a polyaniline main material and a polymer basis material, various forms of polyaniline or composite materials thereof, which are used as main antibacterial materials, and then are blended with other polymer basis materials, and then injection molding, blow molding, mould pressing, foaming and other plastic molding processes are carried out to obtain the polyaniline composite antibacterial environment purification material; and at a normal temperature, polyaniline can be dissolved or dispersed by solvents, and surface treatment is carried out on the plastic by being mixed with other polymers, for example, antibacterial antifouling and anticorrosive coatings and the like are manufactured through spray molding, casting, film painting, electrochemical deposition and other processes. The polyaniline composite material not only has an excellent antibacterial effect on escherichia coli, staphylococcus aureus, Candida albicans and the like, but also can be used as the environment purification material by utilizing the oxidoreduction characteristic to realize the removal of methanal, hydrothion, pollutant and other gases to keep the air fresh.

The present invention relates to a novel block copolymer of structure 1,

wherein, A- is a block polymer chain, B is a block polymer chain,

wherein, A- and B- are chemically different, covalently connected polymer chains, which are phase separable and the moiety X(Y(Z)_b)_a is a junction group, which comprises a surface active pendant moiety Y(Z)_b wherein:

a is an integer from 1 to 4 denoting the number of surface active pendant moieties Y(Z)_b on X,

b is an integer from 1 to 5 denoting the number of Z moieties on the linking moiety Y,

X is a linking group between the A polymer block, the B polymer block and the moiety Y,

Y is a linking group or a direct valence bond between X and Z; and

Z is a moiety independently selected from, a fluorine containing moiety, a Si₁-Si₈ siloxane containing moiety or a hydrocarbon moiety with at least 18 carbons, and further wherein the junction group X(Y(Z)_b)_a has a surface energy less than that that of the block A and less than that of the block B. The invention also relates to a composition comprising the novel copolymer and its use in direct self-assembly processes.

Disclosed is a resin composition for disposable resin molded product, and a disposable resin molded product that enables preparation of a disposable resin molded product not only maintaining excellent mechanical properties but also having biodegradability entailing an environment-friendly feature. The resin composition for disposable resin molded product comprises a polyalkylene carbonate resin.

The invention discloses a polycarbonate-based wear-resistant superhydrophobic coating preparation method. The method comprises dissolving polycarbonate and an antifoaming agent in a solvent to obtain a solution for an intermediate layer, and then dissolving hydrophobic oxide nanoparticles and a low surface energy material in an acetone solution to obtain a solution for a surface layer. In the construction process, a base is coated with commercially available polycarbonate glue, then the glue is coated with the solution for the intermediate layer, and after the solution for the intermediate layer is dried, the intermediate layer is coated with the solution for a surface layer so that the wear-resistant superhydrophobic coating is obtained after drying. Through interaction between the polycarbonate and the acetone solution, the method cleverly realizes the organic combination of the embedded nanostructure and the hierarchical structure, and the thus the prepared superhydrophobic coating has excellent wear resistance.

The present invention generally relates to a novel polymeric material formed, at least in part, from monomeric material comprising 2,3,3,3-tetrafluoropropene (CF₃CF═CH₂, 1234yf), to polymeric compositions, to coating compositions, and to uses thereof.

The invention relates to a composition for an anti-glaring film. The composition comprises an inorganic particle with the average surface roughness being 0.01-3 mu m, an adhesive resin and solvent. The inorganic particle can be synthesized in one step by using material monomers or prepared by self-assembling inorganic particles with small particle size, wherein the surface roughness can be easily controlled. The anti-glaring film prepared from the composition has a stable anti-glaring effect and favorable image definition, and can be applied in the fields of flat panel displays, glass curtain walls and car lights with high resolution.