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.

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.

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.

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.

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.

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.