34results about How to "High optical clarity" patented technology

A constant pathlength multi-assay plate cover for multi-assay plates, comprising, a flat top side and a flat bottom side, the bottom side having solid cylindrical projections of equal length extending downwardly from the flat bottom side, wherein each cylindrical projection is centered about the optical axis passing through a corresponding sample well of a multi-assay plate, thereby eliminating the meniscus and evaporation effects.

Methods and compositions are provided for preparing a biological specimen for microscopic analysis. These methods find many uses, for example in medicine and research, e.g., to diagnose or monitor disease or graft transplantation, to study healthy or diseased tissue, to screen candidate agents for toxicity and efficacy in disease modification. Also provided are reagents, devices, kits and systems thereof that find use in practicing the subject methods.

The invention is a formable, bright metallized laminate that has superior optical and deformation properties. The metallized laminate is made from a plurality of discontinuous metal island layers deposited on a formable clear coat film. The invention is also a method that includes depositing a first discontinuous layer of metal islands upon a formable clear coat film and then depositing a second discontinuous layer of metal islands onto the first discontinuous layer of metal islands.

A stable product containing an aqueous solution of one or more carotenoids for use in supplementing aqueous systems, such as foods, beverages, dietary supplements, and personal care products, with the carotenoid. An ester is dissolved in water and a source of the carotenoid is added to the solution. The concentrated product may be added to the aqueous systems or dried to form a powder that is readily dispersible in aqueous systems. The product may also include an antioxidant to preserve the activity of the carotenoid. Esters particularly suited for use include sucrose fatty acid esters. The product is produced without the use of organic solvents or elevated temperatures. The particles of carotenoids dispersed in the liquid form of the product will pass through a 0.2 micron (μm) sterile filter.

An optically clear aqueous structured surfactant composition that includes from 0 parts by weight to less than 2.5 parts by weight sugar per 100 parts by weight of the composition, and from greater than 7.7 parts by weight to about 50 parts by weight of an anionic surfactant per 100 parts by weight of the composition, and wherein at least a portion of the anionic surfactant is in the form of spherulites, is useful as a ingredient in personal care compositions.

Methods and compositions are provided for preparing a biological specimen for microscopic analysis. These methods find many uses, for example in medicine and research, e.g., to diagnose or monitor disease or graft transplantation, to study healthy or diseased tissue, to screen candidate agents for toxicity and efficacy in disease modification. Also provided are reagents, devices, kits and systems thereof that find use in practicing the subject methods.

The invention is a formable, bright metallized laminate that has superior optical and deformation properties. The metallized laminate is made from a plurality of discontinuous metal island layers deposited on a formable clear coat film. The invention is also a method that includes depositing a first discontinuous layer of metal islands upon a formable clear coat film and then depositing a second discontinuous layer of metal islands onto the first discontinuous layer of metal islands.

The present technology generally relates to emulsion polymer latexes, particularly those used in pressure sensitive adhesives, paints and coatings. Surfactant compositions of the present technology for use in forming at least one emulsion polymer latex comprise at least one branched surfactant, at least one sterically bulky surfactant, or a mixture of branched and sterically bulky surfactants. One preferred surfactant composition comprises at least one alkoxylated polyaryl substituted aromatic compound or at least one alkoxylated polyalkyl substituted aromatic compound. Another preferred surfactant composition comprises a mixture of at least one branched-alkyl sulfate and at least one ethoxylated polystyrylphenol. Another preferred surfactant composition comprises at least one sulfated polystyrylphenol.

Treating metal or metal oxides such as ZnO with PIBSA and analogous molecules yields a hydrophobic powder. The powder can provide improved optical clarity when incorporated into a polymer matrix in comparison to untreated hydrophilic ZnO.

The invention relates to acrylic hydrogels with pendant cyclodextrins, the preparation and application thereof as release systems and components of contact lenses. The method for obtaining acrylic hydrogels with pendant cyclodextrins is characterized in that the hydrogels are formed by a polymer lattice obtained by polymerization of mono- and bifunctional acrylic or methacrylic monomers and monomers having glycidyl groups in their structure, to which cyclodextrin units are covalently bound once formed; and the use and applications of the compositions in the preparation of contact lenses with the capacity for incorporating drugs, active substances or demulcents useful in the treatment of pathological or physiological conditions, in the production of topical, transdermal or transmucosal release systems for medicinal products or active substances, and in the preparation of cosmetics.

The present technology generally relates to emulsion polymer latexes, particularly those used in pressure sensitive adhesives, paints and coatings. Surfactant compositions of the present technology for use in forming at least one emulsion polymer latex comprise at least one branched surfactant, at least one sterically bulky surfactant, or a mixture of branched and sterically bulky surfactants. One preferred surfactant composition comprises at least one alkoxylated polyaryl substituted aromatic compound or at least one alkoxylated polyalkyl substituted aromatic compound. Another preferred surfactant composition comprises a mixture of at least one branched-alkyl sulfate and at least one ethoxylated polystyrylphenol. Another preferred surfactant composition comprises at least one sulfated polystyrylphenol.

A device for inspecting solder connections between a component and a substrate or between two components or substrates, wherein the component is disposed upon the surface of the substrate, the device including an image receiving unit. An image transmitting device, the image transmitting device including a first end and a second end, the first end coupled to the image receiving unit. A tip assembly removably coupled to the second end of the image transmitting device, the tip assembly further including a mirror and an image receiving aperture, the tip assembly configured to transmit an image of the solder connections received by the mirror, through the image transmitting device, to the image receiving unit, and an illumination device, the illumination device including a light source, at least one light transmitting device, and at least one light emitting aperture disposed adjacent the image receiving aperture, the light emitting aperture directed towards the solder connections to be inspected.

Syndiotactic polypropylene blends having a unique set of mechanical properties may be prepared by blending syndiotactic polypropylene with a high molecular weight mineral oil, an ultra low density polyethylene, or both. The syndiotactic polypropylene blends of the present invention have been found to have reduced flexural modulus, reduced haze, improved impact strength and shorter injection molding cycle times. It has been determined that the addition of about 5 to about 10 percent high molecular weight mineral oil to a syndiotactic polypropylene can decrease flexural modulus values by about 25 to about 30 percent. Moreover, the addition of up to about 10 percent mineral oil to the syndiotactic polypropylene material does not show signs of bleeding or impair clarity, in fact, percent haze values are slightly improved with the addition of mineral oil. Additionally, injection molding cycle time optimization shows an improvement of about 12 seconds in overall cycle time utilizing a syndiotactic polypropylene blend with 5% mineral oil in comparison to a syndiotactic polypropylene without mineral oil. The syndiotactic polypropylene blends according to the present invention may be further processed according to accepted practices to make cast films, blown films, injection molded parts, blow molded containers, and other articles using basic plastics fabrication techniques as known in the art.

A coating of atactic polypropylene over a transparent armor substrate improves resistance to penetration while allowing convenient repair of minor abrasions and scratches.

A non-aqueous, solvent-free formulation for producing clear, transparent, heat-resistant elements, suitable for use as lenses in optoelectronic devices, consists essentially of an acidic, nonpolymerizing acrylic resin; THFA, DMA, HEMA, HBA, or an equivalent polymerizable diluent in which the acrylic resin is dissolved; and a free-radical photoinitiator.

A transparent composite has a first layer of a transparent substrate polymer material and a second layer of a transparent fluorocarbon polymer film. The second layer is bonded to the first layer either by an adhesive, by a heat process or by a chemical vapor deposition process.

The invention describes methodological approach for preparation of variable compositions of multi-component derivatization mixtures containing silanes, cyclic molecular compounds (silanes, hydrocarbons, silane-carbons and their derivatives) and other molecular components with certain repellant- and optical properties (as separate molecular substances or as molecular substitutes within the silanes and / or the cyclic compound molecules). Such methodological approach offers better flexibility for water-repellant mixtures preparation in achieving high water-repellant (hydrophobic) properties, durability and long-lasting (permanent) bonding for specific surface applications and for preparation of other subsequent types of repellant, attachment and impregnation compositions used serve practical biological, mechanical and / or industrial purposes.

An electronic device module including a glass cover sheet, a polymeric front polymeric material, an electronic device, a polymeric back material and a backsheet, wherein the polymeric front and / or back materials have a trilayer structure including a back layer which is adhered to a surface of the electronic device, a front layer which is adhered to the glass cover sheet or the backsheet and an intermediate layer between the back layer and the front layer, wherein each of the back layer and the front layer includes an ethylene interpolymer grafted with silane, wherein the ethylene interpolymer grafted with silane has a density of at most 0.905 g / cm3, and the intermediate layer is a non-grafted ethylene interpolymer having a density of at most 0.905 g / cm3, which is crosslinked with the aid of a crosslinking initiator and optionally a crosslinking coagent, and optionally additives. A trilayer polymeric film having outer layers including ethylene interpolymers grafted with silanes and a non-grafted innerlayer containing a peroxide and UV stabilizer.

The invention describes methodological approach and process for preparation of variable compositions of water-(hydrophobic), oil- and dust-repellent multi-component mixtures containing non-cyclic silanes, siloxanes, hydrocarbons, silane-carbons), cyclic molecular compounds (cyclic-silanes, hydrocarbons, silane-carbons and their derivatives) and other hydrophobic molecular components (as separate molecular substances or as molecular substitutes within the silanes and / or the cyclic compound molecules). Such methodological approach offers best flexibility for repellant mixtures preparation in achieving highly repellant properties, durability and long-lasting (permanent) bonding for specific surface applications and for preparation of other subsequent types of repellant surfacing solutions such as paints or sealing agents, textiles and else.

An ethylenically unsaturated polyurethane, which is an oligomer or polymer, results from the reaction of A) an alcohol component comprising: A1) at least one hydroxylated polydiene oligomer or polymer which may optionally be alkoxylated and A2) at least one hydroxyl-functional ethylenically unsaturated compound, which is a monomer or oligomer, bearing at least one ethylenic unsaturation and B) an isocyanate component comprising at least one polyisocyanate with a functionality of at least 2, wherein the molar ratio OH / NCO is greater than 1 and wherein said polyurethane bears reactive free hydroxyl groups. Such ethylenically unsaturated polyurethanes are useful as components of curable compositions such as coatings or adhesives.

A primary package for holding contact lenses is disclosed. It is primarily made from a nucleated polypropylene resin. It has been determined that the nucleated polypropylene resin should be formulated with a polypropylene base resin with greater than 99% polypropylene homopolymer and a primary and secondary stabilizer, which also contains a catalyst acid scavenger; at least one nucleator / clarifier; and at least one catalyst acid scavenger.

According to the present invention there is provided a laminating element comprising a transparent support coated with a thermally non-reversible layer comprising an ethylene-acrylic acid copolymer, a first polyurethane polymer and a second polyurethane polymer, said layer having a pH of at least 10 and containing a metallic or an amphoteric cation.

Aspects of the disclosure relate to manufacturing a balloon envelope for use in a stratospheric balloon system. For instance, a stream of polyethylene mixture us extruded through an extruder in order to orient molecules of polymer chains of polyethylene and to provide an oriented film. The oriented film is passed through an electron beam and thereby crosslinking the polymer chains to provide a cross-linked film. The cross-linked film is heat sealed to form the balloon envelope.

A coating of atactic polypropylene over a transparent armor substrate improves resistance to penetration while allowing convenient repair of minor abrasions and scratches.

The invention relates to glass, a glass forming method, a pressing device and a calender. The glass is prepared by a calendaring molding method; the glass is prepared from the following raw materials: SiO2, Li2O, Na2O, CaO, MgO, Al2O3 and TiO2+ZrO2; the pressing device comprises two pressing mechanisms which are oppositely arranged, each pressing mechanism comprises a base, a cross beam, a pressing rod, a stand column and a driving mechanism, the stand columns and the driving mechanisms are installed on the bases, the first ends of the pressing rods, the ends, away from the bases, of the stand columns and the ends, away from the bases, of the driving mechanisms are all pivoted to the cross beams, and the stand columns are located between the pressing rods and the driving mechanisms; the calender comprises the pressing mechanism. The glass provided by the invention has relatively good performance and relatively high mechanical strength.

The invention discloses a fruit-grain-feeling apple functional beverage. The beverage is prepared from the following components in parts by weight: 50 to 70 parts of purified water, 5 to 11 parts of apple granules, 6 to 21 parts of apple juice, 2 to 5 parts of maltitol, 2 to 5 parts of xylitol, 5 to 6 parts of burdock polysaccharide, 3 to 7 parts of erythritol, 0.01 to 0.3 part of citric acid, 0.08 to 0.2 part of pectin methylesterase, 10 to 12 parts of carrageenan, 10 to 12 parts of xanthan gum, 38 to 40 parts of locust bean gum and 60 to 64 parts of jelly gum. The beverage has the advantages of high appearance transparency, elastic and tough taste and moderate sugar content, is suitable for patients with obesity, diabetes and hypertension to drink, and can also meet the weight-losing requirements of young people at present, and fruit grains and fruit juice are prevented from being soft and rotten after being contacted for a long time; the juice beverage is good in production stability and not prone to layering, and the buying desire of consumers is improved.

The purpose of the present invention is to provide a kind of preparation method of cellulose composite membrane, the present invention is raw material with durian shell, prepares carboxylated nano-cellulose through the oxidative degradation of ammonium persulfate, then the prepared carboxylated nano-cellulose and fiber The cellulose solution is compounded, and the cellulose composite film is prepared under certain process conditions. The production process of the invention is green and environment-friendly, and the prepared cellulose film has higher strength and higher transparency.

A controlled electron beam and heat will increase the melt point temperature and improve the optical clarity of a halogenated optical material. The electron beam and heat irradiation will occur in a chamber under near vacuum conditions. The electron beam imparts sufficient energy to the chemical bonds within the halogenated optical material to create scissions, which leads to the formation of additional networking bonds as these bonds recombine within the material. The change in melt point temperatures and optical clarity, is due to the process of scission and reformation within the halogenated optical material.

An electronic device module including a glass cover sheet, a polymeric front polymeric material, an electronic device, a polymeric back material and a backsheet, wherein the polymeric front and / or back materials have a trilayer structure including a back layer which is adhered to a surface of the electronic device, a front layer which is adhered to the glass cover sheet or the backsheet and an intermediate layer between the back layer and the front layer, wherein each of the back layer and the front layer includes an ethylene interpolymer grafted with silane, wherein the ethylene interpolymer grafted with silane has a density of at most 0.905 g / cm3, and the intermediate layer is a non-grafted ethylene interpolymer having a density of at most 0.905 g / cm3, which is crosslinked with the aid of a crosslinking initiator and optionally a crosslinking coagent, and optionally additives. A trilayer polymeric film having outer layers including ethylene interpolymers grafted with silanes and a non-grafted innerlayer containing a peroxide and UV stabilizer.