3432results about "Polyether coatings" patented technology

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.

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.

A water-based coating composition suitable for preparing hydrophilic surfaces on various articles is provided which includes a supporting polymer having functional moieties capable of undergoing crosslinking reactions, said supporting polymer soluble in or emulsified in an aqueous based medium; and a hydrophilic polymer, said hydrophilic polymer associated with the supporting polymer. The composition is characterized in that, when crosslinked at the functional moieties, the supporting polymer forms a three-dimensional network which substantially minimizes disassociation of the hydrophilic polymer.

Coatings comprising functionalized graphene sheets and at least one binder. In one embodiment, the coatings are electrically conductive.

Disclosed are multi-purpose alkali-swellable and alkali soluble associative polymers, which are the polymerization product of a monomer mixture comprising: (a) at least one acidic vinyl monomer; (b) at least one nonionic vinyl monomer; (c) a first associative monomer having a first hydrophobic end group; (d) a monomer selected from the group consisting of a second associative monomer having a second hydrophobic end, a semihydrophobic monomer and a combination thereof; and, optionally, (e) one or more crosslinking monomers or chain transfer agents. When monomer (d) is an associative monomer, the first and second hydrophobic end groups of monomers (c) and (d) have significantly different hydrophobic and / or steric character from one another. The multi-purpose associative polymers surprisingly provide desirable Theological and aesthetic properties in aqueous media.

An ink composition for ink jet printing contains an amino functionalized polyetheracrylate as radiation curable compound.

Provides is an optical member capable of keeping a high performance antireflection effect over a long period of time with respect to an arbitrary substrate. The optical member has plural layers on a substrate, and includes at least one metal oxide layer having a void, and at least one layer containing an organic resin as a main component formed between the substrate and the metal oxide layer. The metal oxide layer is a plate crystal layer formed of a plate crystal containing aluminum oxide as a main component and a surface of the plate crystal layer has an uneven profile. The organic resin has an aromatic ring and / or a hetero ring in at least a part thereof.

The present invention relates to a siloxane hard resin including alicyclic epoxy siloxane alone or a reactive monomer, which is prepared by condensation reaction of alkoxysilanes, and has a weight average molecular weight in the range of 1000 to 4000 and a molecular weight distribution of PDI 1.05 to 1.4. A siloxane hard cured article produced by photo- or thermal polymerization has high hardness by compact crosslinking of siloxane molecules having different molecular weights.

The invention relates to an ultraviolet light curing anti fogging coating composite with fine anti fogging effect and a preparing method thereof. The ultraviolet light curing coating composite comprises hydrophilic activated oligomer, hydrophobic light curing resin, hydrophilic polymeric monomers, hydrophobic activated diluent, photoinitiator and additive. The method comprises the following steps: accurately weighting and placing the hydrophilic activated oligomer and the hydrophobic light curing resin into a container, adding the hydrophilic polymeric monomers, the activated diluent and the additive in turn to mix for 10min, and then adding the photoinitiator, mixing for 5min to obtain the composite in the invention which is preserved in dark place. The ultraviolet light curing anti fogging coating composite provided by the invention can be coated on thermal sensitivity plastic base material such as PC, PMMA, PET and the like; the coating after the ultraviolet light curing has fine hydrophily and physical performance. The invention has fine anti fogging and fog inhibiting effect, and the coating has good adhesive force and water resistance which can ensure the durability of the anti fogging performance.

The present invention relates to ink-jet ink compositions that comprise macromolecular chromophores having functional groups covalently attached for water solubility. Moreover, the MMCs have polymer chains covalently attached to the pigments by nucleophilic substitution to provide enhanced smearfastness, enhanced print quality, improved bleed control, and improved resistance to water when applied to the media. These inks have good viscosity and surface tension, are more soluble in organic solvents and are, therefore, useful in ink-jet printing, including thermal ink jet printing, piezoelectric ink jet printing, and continuous ink jet printing.

The invention discloses composite epoxy anticorrosive paint and a preparation method thereof. The composite epoxy anticorrosive paint is composited by a component A and a component B at a ratio of 2:1, wherein the component A comprises constituents as follows: organosilicon modified epoxy resin, a pigment, filler, a plasticizer, a dispersant, a coalescing agent and a antifoaming agent; the component B comprises constituents as follows: polyphenyl ether resin powder, styrene-butadiene rubber, toluene, a plasticizer, a coupling agent, auxiliary materials and a flame retardant; and the components A and B are mixed respectively for preparation, and B is sprayed on A to form the composite epoxy anticorrosive paint. The composite epoxy anticorrosive paint is prepared by two components, has superior high-temperature resistance and abrasion resistance as well as good adhesion and low shrinkage simultaneously, has good corrosion resistance and penetration resistance to water, medium acid, alkali and other solvents and further has superior flexibility and paint application simultaneously; and the preparation method of the composite epoxy anticorrosive paint is simple and low in cost.

The present invention provides a hard coat agent composition that is useful for forming a hard coat layer with excellent anti-staining properties and lubricity, as well as superior scratch resistance and abrasion resistance, on the surfaces of various articles. The present invention also provides an optical information medium using the above hard coat agent composition. A hard coat agent composition comprising a fluorine-containing block copolymer (A1), a fluorine-containing polyether compound (A2) comprising an active energy ray-reactive group, and an active energy ray-curable compound (B). An optical information medium comprising a film element composed of one or more layers including at least a recording layer (4) or a reflective layer, on a supporting substrate (20), wherein at least one of the supporting substrate (20)-side surface and the film element-side surface is formed of a hard coat layer (8) comprising a cured product of the hard coat agent composition.

The invention relates to a general water-based quick-drying anti-rust paint and a preparation method thereof. The general water-based quick-drying anti-rust paint comprises the following components in percentage by weight: 18%-55% of film-forming substance, 6%-22% of anti-rust agent and the balance of water. The preparation method comprises the following steps of: firstly pre-dispersing the components except the anti-rust agent according to the formula ratio; then adding the anti-rust agent according to the formula ratio; and re-dispersing to obtain the general water-based quick-drying anti-rust paint. The general water-based quick-drying anti-rust paint disclosed by the invention is safe and nontoxic, contains no lead, chromium or other hazard pigments and derivatives, can not burn or explode, is suitable for safe production, has the advantages of plump paint film, excellent decoration and protection, excellent adhesive force and adjustable glossiness, and is simpler in production process compared with an oil paint.

Single coat coating systems (22), as well as articles coated with such non-stick coating systems, are provided. The single coat system includes a fluoropolymer copolymer (14a), such as fluoropolymer terpolymer including tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride monomers, with fluoropolymer copolymers are referred to collectively as THV. The single coat system exhibits excellent substrates adhesion and release properties, is resistant to separation failure at the interface between the binder (12) and fluoropolymer components (14a), and exhibits adhesion to smooth substrates (16). The single coat system may also include a high level of fillers to provide increased damage resistance without compromising the above benefits.

There are disclosed silicone polyether compositions, methods for making them and their uses. The compositions are based on polyethers initiated by non-isomerizing alkenyl or alkynyl alcohols.

A co-polymer of benzophenone and bisphenol A has been shown to have DUV absorption properties. Therefore, the co-polymer has particular utility as an antireflective coating in microlithography applications. Incorporating anthracene into the co-polymer backbone enhances absorption at 248 nm. The endcapper used for the co-polymer can vary widely depending on the needs of the user and can be selected to promote adhesion, stability, and absorption of different wavelengths.

The invention relates to a highly-hydrophilic transparent ultraviolet-cured coating composition and a preparation method thereof. The ultraviolet-cured hydrophilic coating composition comprises light-cured resin, a polymerization monomer, a reactive diluent, a light initiator, an auxiliary and pigment. The preparation method comprises accurately weighing the light-cured resin according to a formula and pouring the light-cured resin into a mixing kettle, sequentially adding the polymerization monomer, the reactive diluent and the auxiliary into the mixing kettle, and stirring the mixture for 20-45 minutes; adding the light initiator into the mixing kettle, mixing for 15-35 minutes to obtain ultraviolet-cured hydrophilic coating, and storing the ultraviolet-cured hydrophilic coating away from the light; and when the ultraviolet-cured hydrophilic coating is used, adding the pigment and performing even mixing. The ultraviolet-cured hydrophilic coating composition can be coated on base materials of plastic, metal, glass and the like. An ultraviolet-cured coating has excellent hydrophilcity and good physical performance, adhesive force, hydrolytic resistance, salt fog resistance and alkali resistance.

A composition comprising the condensation product of a least one fluorochemical polyether silane compound having a polyfluoropolyether segment and at least two hydrolysable silane groups per molecule, with one or more non-fluorinated compounds having at least two hydrolysable groups per molecule, and the reaction product thereof, is disclosed. The composition provides durable water, oil and stain repellency to a substrate.

Powder coating compositions comprising at least one thermosetting resin and at least one poly(phenylene ether) are disclosed.

Printed electronic device comprising a substrate onto at least one surface of which has been applied a layer of an electrically conductive ink comprising functionalized graphene sheets and at least one binder. A method of preparing printed electronic devices is further disclosed.

A primer composition for a fluorinated elastomer or a fluorinated gel, said primer composition comprising:100 parts by weight of (a) a linear perfluoro polyether compound having at least two alkenyl groups per molecule, a perfluoro polyether backbone having repeating units represented by the formula, —CaF2aO—, wherein a is an integer of from 1 to 6, and a weight average molecular weight of from 5,000 to 100,000,(b) an organosiloxane compound having one or more fluorine atom and at least two SiH bonds per molecule, in such an amount that a molar ratio of the SiH bond in the organosiloxane compound to the alkenyl group in Component (a) ranges from 0.8 to 5.0,a catalytic amount of (c) a hydrosilylation catalyst,5 to 100 parts by weight of (d) an organosiloxane compound having, per molecule, at least one SiH bond and at least one epoxy group and / or trialkoxysilyl group bonded to a silicon atom of said organosiloxane via an organic group which may have an oxygen atom, and100 to 10000 parts by weight, per total 100 parts by weight of said components (a), (b), (c) and (d), of (e) an organic solvent having a fluorine atom and a boiling point of not higher than 150° C. at atmospheric pressure.

An aqueous dispersion composition of about 30 to about 70 weight % non-melt-processible fluoropolymer particles having a standard specific gravity (SSG) of less than 2.225 and about 2 to about 11 weight % surfactant based on the weight of said fluoropolymer comprising a compound or mixture of compounds of the formula:R(OCH2CH2)nOHwherein R is a branched alkyl, branched alkenyl, cycloalkyl, or cycloalkenyl hydrocarbon group having 8-18 carbon atoms and n is an average value of 5 to 18. The fluoropolymer particles of the dispersion comprise a core of high molecular weight polytetrafluoroethylene and a shell of lower molecular weight polytetrafluoroethylene or modified polytetrafluoroethylene. Preferably, the aqueous dispersion composition comprises about 45 to about 65 weight % non-melt-processible fluoropolymer particles.

An intumescent composition which comprises a polymer selected from a silane-terminated polyurethane or a silane-terminated polyether, a plasticizer that is compatible with the polymer and an intumescent ingredient. Processes of forming a cured intumescent substance, and methods of fire protecting a building are also provided.

The invention discloses an ultraviolet (UV) curing paint and a preparation method and application thereof. The preparation method comprises the following steps: weighting modified SiO2 sol to place in a container, adding water-soluble UV-cured resin, solvent and additive in turn, stirring for 10min, then adding photoinitiator, and stirring for 5min to obtain the UV curing paint, wherein the contents of the water-soluble UV-cured resin, the solvent, the additive and the photoinitiator are 10-60%, 7-33%, 0.1% and 2% respectively. The UV curing paint prepared by the method of the invention has the advantages of inorganic materials such as high hardness, high wear resistance, scratch resistance and good thermal stability and also has the advantages of organic materials such as adhesivity and relative flexibility; and the UV curing paint is suitable to be used as the protective coatings on the surfaces of all kinds of optical plastic products such as polyester which contains polycarbonate, polymethylmethacrylate, polyethylene terephthalate (PET) and the like. By adopting the UV curing paint of the invention, the defects of the existing UV curing paint in the aspects of hardness, wear resistance, scratch resistance and light transmittance, can be overcomed to a certain extent.

A composition for film formation capable of forming a silica-based coating film having low water absorption and dielectric constant of 2.1 or lower and useful as an interlayer insulating film material in semiconductor devices, etc. The composition contains: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one silane compound selected from the group consisting of compounds represented by formula (1), compounds represented by formula (2), and compounds represented by formula (3) in the presence of a basic catalyst and water, <paragraph lvl="0"><in-line-formula>RaSi(OR1)4-a (1) < / in-line-formula>wherein R represents a hydrogen atom, a fluorine atom, or a monovalent organic group, R1 represents a monovalent organic group, and a is an integer of 1 or 2, <paragraph lvl="0"><in-line-formula>Si(OR2)4 (2) < / in-line-formula>wherein R2 represents a monovalent organic group, <paragraph lvl="0"><in-line-formula>R3b(R4O)3-bSi-(R7)d-Si(OR5)3-cR6c (3) < / in-line-formula>wherein R3 to R6 may be the same or different and each represents a monovalent organic group, b and c may be the same or different and each is a number of 0 to 2, R7 represents an oxygen atom, a phenylene group, or a group represented by -(CH2)n-, wherein n is an integer of 1 to 6, and d is 0 or 1; (B) a compound compatible with or dispersible in ingredient (A) and having a boiling point or decomposition temperature of from 250 to 450° C.; and (C) an organic solvent.

Films are closely conformed to substrates by reducing the air pressure to a subatmospheric level in at least one airflow pathway that is present in the film or the substrate. The reduced air pressure enables the film to tightly contact the substrate in locations where protrusions or depressions on the substrate are present. The method is particularly useful for conforming film containing graphics to a variety of substrates such as the sides of semi-trailers or concrete block walls, even in instances where the semi-trailer sides include rivets and / or grooves and where the concrete block wall is relatively rough.