35results about How to "More hydrophilic" patented technology

Compositions of the formulae (I), (II) and (III); where R1, R2 and R3 are residues of amino acids such as, but not limited to, valine, sarcosine, leucine, glutamine, tryptophan, tyrosine, alanine and 4(4-aminophenyl)butyric acid or combination thereof, and salts thereof. Methods of preparation of these compositions and methods of treating any disease condition responsive to THC comprising administration of at least one these compositions in a pharmaceutically acceptable carrier using a pharmaceutically acceptable formulation.

One embodiment of a MEMS flow module (34) includes a first plate (36) and a second plate (48) that are separated by a first link (62). A plurality of concentrically disposed, annular flow-restricting walls (40) extend from the first plate (36), and each is separated from the second plate (48) by a flow-restricting gap (58). When the MEMS flow module (34) is exposed to a differential pressure and in one configuration, a perimeter (46) of the first plate (36) flexes away from the second plate (48) (and at least generally about where the first link (62) interfaces with the first plate (36)) to increase the size of one or more of the flow-restricting gaps (58), to in turn accommodate an increased flow or flow rate through the MEMS flow module (34).

Disclosed is an assay device for the determination of the presence and / or extent if an analyte in a liquid sample over an extended concentration range comprising a first assay and a second assay, wherein the first assay for an analyte comprises a first flow-path having a sole detection zone capable of immobilising a labelled binding reagent and the second assay for said analyte comprises a second flow-path having a sole detection zone capable of immobilising a labelled binding reagent, wherein the presence of labelled binding reagent at the detection zones provides an indication of the presence and / or extent of analyte in said liquid sample.

A material is provided for contact lens including a first siloxane macromer represented by the following formula (I):wherein R1, R2 and R3 are independently C1-C12 hydroxyl group, C1-C12 alkyl groups or C1-C12 siloxane group; R4 is C1-C6 alkylene group or C1-C6 alkylene substituted with ether group; R5 is —H, —CH3, —CH(CH3)2, —CH(CH3)CH2(CH3), —CH2CH(CH3)2, —CH2C6H5, —CH2OH, —CH(OH)CH3, —CH2CONH2 or —CH2CH2CONH2: R6 is —NHCONH—, —NHCO—, —R8NHCONH— or —R8NHCO—, wherein R8 is —O—, —O(CH2)n— or —(CH2)n— and n is an integer of 1-10; R7 is hydrogen or methyl; and m is an integer of 10-100.

The present invention relates to a surfactant composition, consisting of 70 wt %-99.9 wt % sophorolactone, 0-1 wt % sophorolipid acid, less than 0.1% residual substrate, and remainder water. The invention further relates to products comprising this composition or hydrolysates thereof. The invention also relates to uses of these products and hydrolysates.

A method for recovering ruthenium oxide or gold and titanium or titanium oxide from a bipolar plate at the end of the life of a fuel cell stack so as to use these materials in other fuel cell stacks thereafter. The bipolar plate is immersed in a solution including a suitable acid that dissolves the titanium or titanium oxide. The ruthenium oxide or gold will be released from the plate and will float on the solution from which it can be removed. The solution is then heated to evaporate the acid solution leaving a powder of the titanium oxide. The stainless steel of the bipolar plate is thus cleaned of the titanium or titanium oxide, and can be reused.

The invention discloses a preparation method of hyper-branched polyether amide block silicone. The preparation method comprises the following steps: preparing polyether / epoxy block silicone oil and preparing hyper-branched polyether amide block silicone. According to the preparation method, hyper-branched polymers and linear polyether amino block silicone are combined together to develop a new silicone softening agent with a newly modified silicone chemical structure; the synthesized hyper-branched material has a reticular structure which not only strengthens cohesive force between fibers, but also strengthens cohesive force between yarns; the invention is high in molecular weight, low in viscosity, rich in hydrophilic groups and capable of endowing soft, well-rounded and washable touch on fabrics; the problem of easy demulsification of traditional amino-modified silicone oil is solved; the product has self-emulsifying performance in water and is good in emulsion stability; the hyper-branched polyether amide block silicone is reduced in yellowing performance and enhanced in hydrophilicity; fabrics made accordingly has good hydrophilicity and low yellowing performance; and the hyper-branched polyether amide block silicone combines with the fabrics in a form of chemical bonds, so that the wash resistances is enhanced and the soft effect of amino silicone oil is achieved.

The invention discloses a preparation method of hyperbranched ternary polymerization organic silicon. The preparation method comprises the following steps: preparing allyl polyoxyethylene glycidyl ether; preparing epoxy-terminated polyether block siloxane; preparing polyether / epoxy block silicone oil; preparing hyperbranched ternary polymerization organic silicon. According to the preparation method, a hyperbranched polymer and linear polyether amino block organic silicon are bonded together to research a novel organic silicon softener with a novel modified organic silicon chemical structure, and a synthesized hyperbranched matter is capable of enhancing the cohesive force among fibers and endowing a fabric with soft, plump and washable hand feel, high in molecular mass and low in viscosity and has much hydrophilic groups; the problem that emulsion of traditional amino modified silicon oil is easily broken is solved, the product has self-emulsifying property in water and is good in emulsion stability; the yellowing property is reduced, and the hydrophily is enhanced; a processed fabric is good in hydrophily and low in yellowing property and is bonded with fabric by virtue of chemical bonds, so that the washability is improved, and the fabric has a flexible effect of amino silicon oil.

A method and device for the detection of low-level harmful substances in a large volume of fluid comprising using a concentrator system to produce a retentate and analyzing the retentate for the presence of at least one harmful substance. The concentrator system performs a method comprising pumping at least 10 liters of fluid from a sample source through a filter. While pumping, the concentrator system diverts retentate from the filter into a container. The concentrator system also recirculates at least part of the retentate in the container again through the filter. The concentrator system controls the speed of the pump with a control system thereby maintaining a fluid pressure less than 25 psi during the pumping of the fluid; monitors the quantity of retentate within the container with a control system, and maintains a reduced volume level of retentate and a target volume of retentate.