146results about "Cyclodextrin coatings" patented technology

A hard coat film includes a transparent plastic film substrate; and a hard coat layer, wherein the hard coat layer is formed of a composition for forming a hard coat layer, the composition containing the following component (A), component (B), and an organic solvent:

Component (A): a polyrotaxane,

Component (B): a monomer having two or more ethylenically unsaturated groups.

Disclosed are novel polymers derivatized with at least one —NO_x group per 1200 atomic mass unit of the polymer. X is one or two. In one embodiment, the polymer is an S-nitrosylated polymer and is prepared by reacting a polythiolated polymer with a nitrosylating agent under conditions suitable for nitrosylating free thiol groups. The polymers of the present invention can be used to coat medical devices to deliver nitric oxide in vivo to treatment sites.

A novel compound and novel gelatinous substance which have high absorbability, uniform expansion, and elasticity. Although conventional gels include chemical gels and physical gels, no novel gels or compounds have been realized which have fracture resistance, high entropic elasticity, and biodegradability. The present invention provides a novel compound and a novel gelatinous substance which each comprises a crosslinked polyrotaxane obtained by chemically bonding two or more polyrotaxane molecules through the cyclic molecules or rotators thereof.

The invention discloses a polyelectrolyte nanometer flame-retardant coating by adoption of layer-by-layer assembly and a preparation method thereof. The preparation method comprises following steps of: 1), preprocessing: putting and soaking base material into an acid solution and cleaning and drying base material with water; 2), self-assembly: putting and soaking pre-processed base material to a cationic polyelectrolyte solution in order to from a layer of ion membrane, taking out the layer of ion membrane and cleaning the ion membrane with water for drying, putting and soaking the ion membrane into the cationic polyelectrolyte solution in order to form an layer of anionic membrane, and cleaning the layer of anionic membrane with water and drying; sequentially repeating above self-assembly process for multiple times so that the polyelectrolyte nanometer flame-retardant coating is prepared by adoption of layer-by-layer assembly on the surface of the base material. The polyelectrolyte nanometer flame-retardant coating by adoption of layer-by-layer assembly and the preparation method thereof have following beneficial effects: the polyelectrolyte nanometer flame-retardant coating is green and eco-friendly and has a simple and feasible preparation method; damage to the internal structure of base material is avoided; high flame-retardant efficiency is obtained; and the preparation method is suitable for formation of flame-retardant coatings on material surfaces including fabric, wood, foam and plastics.

The invention relates to compositions that can be used to adsorb low concentration, preferably, for example less than 15 ppm, of unwanted or target substances. Typically the absorbance can be from an enclosed vapor phase. Such absorbency is accomplished in a contained substantially enclosed gaseous volume or atmosphere using a composition comprising a cyclodextrin compound and a polyethylenimine that can have an absorbency capability for low concentrations of unwanted or target substances. Such absorbency can be obtained with thermoplastic materials used in the form of bulk polymer or a film, fiber, web, woven fabric, nonwoven fabric, sheet, packaging and other such structures including or surrounding the enclosed volume. The adsorbent of the invention is typically used in the context of an enclosed volume, also known as an enclosed ambient vapor phase that contains the adsorbent of the invention and the unwanted or target substances at a concentration that is not desirable. The concentration should be reduced to non-offensive sensed limits or a limit that does not produce a biological response.

The present invention provides a hard coating film having high hardness and excellent properties. The hard coating film has high hardness and is not easily curled.

The invention relates to solid watercolor which comprises the following components in parts by weight: 15-20 parts of Arabic gum, 25-30 parts of polyethylene glycol with average molecular weight of 6000-8000, 5-8 parts of dextrin or soluble starch or combination thereof, 3-15 parts of glycerol, 35-43 parts of filler, 5-20 parts of colorant and 0.5-2 parts of dispersant. The preparation method comprises the steps of processing all raw materials in a sealed kneader, extrusion molding through a screw extruder, cooling and hardening. The solid watercolor has low water absorbability, poor viscosity and is convenient to package, store and use. The preparation method has no dust pollution, greater compactness of the obtained product and no need of water as a dispersing medium, and extrusion molding is preformed in one step by the screw extruder without roasting to remove water later, thereby saving energy resources.

The present invention relates to a hard coating film, and, more particularly, to a hard coating film having hardness and excellent physical properties. According to the present invention, the hard coating film has high physical properties including hardness, fouling resistance, slip resistance, scratch resistance, transparency, durability, light resistance, and light transmittance.

Thus, the hard coating film can find useful applications in various fields thanks to its excellent physical properties.

The present invention relates to an electrically conductive film characterized by being able to undergo elastic deformation, having little residual strain rate and exhibiting stress relaxation properties. More specifically, the present invention relates to an electrically conductive film wherein the stress relaxation rate (R) and the residual strain rate a, as measured in a prescribed extension-restoration test, are as follows: 20%≦R≦95% and 0%≦α≦3%.

Disclosed herein is a laminated hard coating film, which exhibits high hardness and excellent properties without a supporting substrate. The laminated hard coating film can find useful applications in various fields thanks to its excellent hardness, scratch resistance, transparency, durability, light resistance, light transmittance, and the like.

An ink composition includes a cyclic saccharide and hydantoin or a derivative thereof.

Room temperature stable, non-gelling polysaccharide solutions such as agaroses, dextrans and cyclodextrans are made by the present invention. It has been found that by incorporating certain gel-inhibiting additives into an aqueous polysaccharide solution, the gel point is reduced or eliminated and the solution remains liquid at room temperature indefinitely. Additives that have been found to work include salts, such as lithium chloride and zinc chloride and bases, such as sodium hydroxide and lithium hydroxide. Mixtures of said salts and said bases can also be used with the same desired results. The composition of these solutions of the present idea can be further modified to include other additives, such as organic co-solvents or non-solvents, pH modifiers, surfactants or other polymers to customize the properties of the solution to improve the processability for the desired application and to form structures such as films, beads and coated porous substrates.

The present invention relates to a novel polyrotaxane compound having a specific chemical structure, a photocurable coating composition that may provide a coating material having excellent mechanical properties such as scratch resistance, chemical resistance, abrasion resistance, and the like, and excellent self-healing capability, and a coating film obtained from the photocurable coating composition.

The invention discloses an all-weather air purification paint and a preparation method thereof. The all-weather air purification paint comprises a quick-acting liquid and a long-acting liquid, wherein the quick-acting liquid is a shell powder solution with a concentration of 0.12 to 0.17%, and the long-acting liquid is an acidic aqueous solution which mainly comprises, by weight, 1 to 5% of a mineral matter, 2 to 8% of a plant extract and 5 to 12% of cyclodextrin. The all-weather air purification paint realizes catalytic decomposition of VOCs like formaldehyde and antibacterial and deodorizing effects under the condition of common illumination or air flow, has the characteristic of long-time continuous decomposition and is capable of realizing catalytic decomposition of VOCs like formaldehyde and the antibacterial and deodorizing effects in a light-free darkroom.

[Object] To provide a coating material for a room temperature curable solvent-borne overcoating material having chipping resistance and not allowing occurrence of cracks, and a room temperature curable solvent-borne overcoating material using the same, the room temperature curable solvent-borne overcoating material being excellent in abrasion resistance and in performance such as weather resistance, contamination resistance and adhesion.

[Solving Means] A coating material is formed of a lipophilic polyrotaxane including a cyclic molecule, a linear molecule piercing through the cyclic molecule to include it, and blocking groups disposed at both end terminals of the linear molecule to prevent departure of the cyclic molecule. In the lipophilic polyrotaxane, at least one of the linear molecule and the cyclic molecule has a hydrophobic modification group. A room temperature curable solvent-borne overcoating material is formed to contain the coating material preferably within a range of from 60 to 100% by mass relative to a film-forming component.

There is provided a curable aqueous overcoating composition containing 1 to 90 mass % of hydrophilic polyrotaxane with respect to the coating film forming component, where the hydrophilic polyrotaxane has a cyclic molecule, a linear molecule included in the cyclic molecule in a skewered manner and blocking groups arranged on opposite ends of the linear molecule to prevent elimination of the cyclic molecule from the linear molecule and at least one of the linear molecule and the cyclic molecule has a hydrophilic modifying group.

A curable aqueous overcoating material is obtained by blending 1-90% by mass of a hydrophilic polyrotaxane relative to the coating film-forming component. The hydrophilic polyrotaxane has a cyclic molecule, a linear molecule passing through the cyclic molecule and enclosed thereby, and blocking groups arranged on both ends of the linear molecule for preventing elimination of the cyclic molecule, and at least one of the linear molecule and the cyclic molecule has a hydrophilic modification group.

Disclosed is a hard coating film with high impact resistance and superior physical properties, including high hardness, scratch resistance and transparency, and high processability.

The application concerns a Binder (comprising sulfamic acid, ammonium sulfamate and ammonium sulfate) and process of production of fabrics containing cyclodextrins fixed to the binder. The technology allows fixing a binder to natural, synthetic or artificial fibers, and, by means of a thermal processes, to fix cyclodextrins to the same binder, giving rise to fabrics suitable to incorporate active principles and to release them along with time. Peculiar characteristics of the binder are its abilities to interact with several types of fabric, independently of their composition, and with several types of cyclodextrin. Other peculiarities of embodiments are: the ability to produce functionalized fabrics, adapted to be weighted with desired molecules and release them gradually along time, with a process that does not alter the original characteristics of the fabric; the possibility of repeating several times the weighting of such molecules, so as to be able to define such fabrics as “reloadable” or “rechargeable.”

The invention discloses weather-resistance water-resistance acrylate paint for a scaffold. The weather-resistance water-resistance acrylate paint for the scaffold comprises acrylic resin, nano-silicon sol, carbon black, nano-titanium dioxide, carbon nanotubes, nano-zinc oxide, ethylene glycol ethyl ether acetate, methyl isobutyl ketone, xylene, propylene oxide tert-butyl ether, chlorinated polypropylene, epoxy resin, amino resin, a silane coupling agent, lauryl acid phosphate, a wetting and dispersing agent, an antifoaming agent, a flatting agent, 2-O-methylation-beta-cyclodextrin and a corrosion inhibitor. The weather-resistance water-resistance acrylate paint for the scaffold is excellent in water resistance and weathering resistance, strong in adhesive force and good in flexibility.

The present invention provides a method for coating seeds with biological materials such as bacteria, fungi (e.g., yeasts and molds), parasites, recombinant vectors, and viruses. The method comprises (a) applying a moistening liquid to seeds to moisten seeds, wherein the moistening liquid comprises a moistening polymer, and (b) coating the moistened seeds with an effective amount of a dry composition, wherein the dry composition comprises biological materials, one or more disaccharides, one or more oligosaccharides, one or more polysaccharides, one or more carboxylic acid salts, and one or more hydrolyzed proteins. The coated seeds may have an initial water activity (Aw) below 0.4, and the microorganisms on the coated seeds have initial viability of at least 5 logs of colony forming units per gram of seeds (CFU/g seed). Also provided are coated seeds.