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11597results about How to "Improve hydrophilicity" patented technology

Sulfo benz[E]indocyanine flourescent dyes

PCT No. PCT / EP96 / 04377 Sec. 371 Date May 11, 1998 Sec. 102(e) Date May 11, 1998 PCT Filed Oct. 8, 1996 PCT Pub. No. WO97 / 13810 PCT Pub. Date Apr. 17, 1997The present invention is directed to fluorescent dyes and its valence tautomers of the formula wherein Q represents a conjugated moiety that increases the fluorescent quantum yield of the compound; R1 is a functionalized group of the formula-(CH2)jY, wherein Y is selected from the group consisting of SO3H, COOH, NH2, CHO, NCS, epoxy, phthalimido, and COOZ, wherein Z represents a leaving group; R2 is a functionalized group of the formula -(CH2)kY', wherein Y' is selected from the group consisting of SO3H, COOH, NH2, CHO, NCS, epoxy, phthalimido, and COOZ, wherein Z represents a leaving group; M+ is a counterion selected from the group consisting of ammonium, alkali metal cations, and alkaline earth metal cations; n=1 to 4; m=1 to 4; j=2 to 10; and k=2 to 10.
Owner:VISEN MEDICAL INC

Drug Delivery Systems

The present invention relates to microparticles comprising a gel body, wherein the gel body comprises a synthetic polymer and a drug, wherein the microparticles have an average diameter in the range 40 to 1500 μm, wherein the polymer is cross-linked by groups comprising disulfide linkages and is in the form of a hydrogel.
Owner:BIOCOMPATIBLES UK LTD

Method for preparing fiber braided tube embedded enhanced type polymer hollow fiber microporous membrane

ActiveCN101543731AControl the amount of infiltrationSolve technical problems that are easy to blockSemi-permeable membranesFiberHollow fibre membrane
The invention discloses a method for preparing a fiber braided tube embedded enhanced type polymer hollow fiber microporous membrane, which is characterized by adopting a fiber-braiding and coextrusion integrative membrane forming process, namely a core liquid tube is fixed in the middle of the braded tube, a fibrous bundle is braided into a fiber braided tube along the core liquid tube, then casting film liquid, core liquid and the fiber braided tube are co-extruded by an extrusion die, and the fiber braided tube embedded enhanced type polymer hollow fiber microporous membrane is prepared bya phase transformation method. The method successfully embeds the fiber braided tube into the body of the hollow fiber microporous membrane and introduces the core liquid into the inner cavity of thebraided tube, and effectively controls the inside diameter of the hollow fiber microporous membrane, so that the technical problems that in the prior coating process of preparing a fiber braided tubeenhanced type hollow fiber membrane, a polymer layer is easy to break away from the fiber braided tube, the hollow fiber inner cavity is easy to be blocked, and the like are solved, thus the polymer hollow fiber microporous membrane with high backwashing pressure, high mechanical strength, high flux, high retention performance and hydrophilic property is obtained.
Owner:TONGXIANG JIANMIN FILTER MATERIALS

Layer-by-layer self-assembling oxidized graphene nano-filtration membrane and preparation method thereof

The invention relates to a layer-by-layer self-assembling oxidized graphene nano-filtration membrane and a preparation method of the layer-by-layer self-assembling oxidized graphene nano-filtration membrane, which belongs to the technical field of the preparation of a nano-filtration membrane. The layer-by-layer self-assembling oxidized graphene nano-filtration membrane comprises a supporting layer and a functional layer, wherein the functional layer is in a layered structure which is different from the compact structure of the traditional nano-filtration membrane functional layer. The preparation method comprises the following steps of (I) preparing an oxidized graphene solution through a hummers method; and (II) preparing an oxidized graphne nano-filtration membrane through a layer-by-layer self-assembling method. The oxidized graphene nano-filtration membrane is prepared through the layer-by-layer self-assembling method, a water passage is formed between the oxidized graphene lamellas, the distance of the oxidized graphene layer has a good interception effect for ions, the hydrophilia can be improved through the oxygen-containing functional groups on the surface of the oxidized graphene layer, so that the membrane is good in permeability and interception property. By utilizing the layer-by-layer self-assembling method, the high requirement of the traditional nano-filtration membrane preparation process on the condition can be avoided, the process is simple, the condition is easily controlled, and the application prospect is wide.
Owner:OCEAN UNIV OF CHINA

Transfer ink jet recording apparatus

Disclosed herein is a transfer ink jet recording apparatus equipped with a substrate; an intermediate transfer member that is arranged on the substrate and has a surface containing at least one material of fluorine-containing rubber and silicone rubber, said surface being subjected to a modification treatment by a plasma treatment and an application treatment with a compound represented by the general formula (1) defined in the specification; an application unit for applying a component that causes ink viscosity increase to the modification-treatment-subjected surface of the intermediate transfer member; an ink jet recording unit for ejecting an ink on the intermediate transfer member to which the component has been applied to form an intermediate image; and a transfer unit for transferring the intermediate image formed on the intermediate transfer member to a recording medium.
Owner:CANON KK
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