171 results about "Polyoxidonium" patented technology

An aqueous composition comprising, in addition to water: (a) one or more surfactant materials selected from polyoxyalkylene condensate derivatives of lanolin or a lanolin derivative; and (b) a lipid component comprising one or more lipid materials, especially lanolin or a lanolin derivative, present as particles emulsified by the said one or more lanolin-derived surfactant materials and having a median particle size of less than about 5 mum, especially from 0.01 to 1 mum. The compositions have very good physical stability and are particularly useful as carriers for transdermal delivery of pharmaceutical actives to the human skin.

Biocompatible macromer compositions are provided including an isocyanate-functional polyalkylene oxide combined with at least one multi-functional isocyanate as a first component, and a multi-amino functional compound possessing multiple primary amines as a second component. The isocyanate-functional polyalkylene oxide has pendant polyalkylene oxide groups. The resulting biocompatible macromer composition can be employed as an adhesive or sealant for medical / surgical uses.

The present invention relates to a process for preparing alkoxysilane-functional prepolymers by reacting A) 1.0 equivalent of a polyol component have a number average molecular weight of 3000 g / mol to 20,000 g / mol and containing one or more polyQxyalkylene polyols or polyoxyalkylene polyol prepolymers with B) 1.05 to 1.50 equivalent of an isocyanate-and alkoxysilane-functional compound of formula I)wherein X, Y, and Z independently of one another are linear or branched C1-C8 alkyl or C1-C8 alkoxy radicals, wherein at least one of the radicals is a C1-C8 alkoxy group and R is an organic radical having a functionality of at least two, and subsequently further reacting the remaining free NCO groups by allophanatization or by reaction with C) an isocyanate-reactive component. The present invention also relates to the alkoxysilane-functional prepolymers obtained by the process of the invention.

(Problem) To provide a novel polyether-modified organopolysiloxane and a novel diorganopolysiloxane-polyether block copolymer that are more resistant to oxidation than the heretofore existing polyoxyalkylene-modified organopolysiloxanes and that are thus more resistant to producing allergenically antigenic oxidation products during elapsed time in storage. Also, to provide methods of producing this novel polyether-modified organopolysiloxane and novel diorganopolysiloxane-polyether block copolymer.(Solution) Organopolysiloxane that is modified by silicon-bonded polyglycidyl ether or glycidyl ether / alkylene oxide copolymer; diorganopolysiloxane-polyglycidyl ether block copolymer; a method of producing the preceding by a hydrosilylation reaction between organohydrogenpolysiloxane and polyglycidyl ether having a terminal double bond or a glycidyl ether / alkylene oxide copolymer having a terminal double bond; and a cosmetic that contains this modified organopolysiloxane or diorganopolysiloxane-polyglycidyl ether block copolymer.

The invention discloses a spraying elastomer raw material composition. The composition comprises an A component raw material and a B component raw material, wherein the A component raw material comprises one or more of polyester polyol having a number-average molecular weight of 400-3000, polyether polyol having a number-average molecular weight of 400-3000, vegetable oil polyol having a number-average molecular weight of 400-2000, amino-terminated polyether having a number-average molecular weight of 200-4000 and polyisocyanate; and the B component raw material comprises polyoxypropylene diamine having a number-average molecular weight of 200-4000, polyoxypropylene triamine having a number-average molecular weight of 400-5000, active aromatic diamine and aromatic diamine. The invention also discloses a prepolymer of a spraying elastomer, a raw material composition and a preparation method of the prepolymer as well as a bathroom product. The spraying elastomer disclosed by the invention is good in various comprehensive properties; and after pressed, the product can memory the original shape, thereby improving the whole comfortable sensation and broadening the use range of the spraying elastomer.

A novel polyether-modified organopolysiloxane and a novel diorganopolysiloxane-polyether block copolymer are more resistant to oxidation than the heretofore existing polyoxyalkylene-modified organopolysiloxanes and are thus more resistant to producing allergenically antigenic oxidation products during elapsed time in storage. Methods of producing this novel polyether-modified organopolysiloxane and novel diorganopolysiloxane-polyether block copolymer are also provided, as well as cosmetic that the modified organopolysiloxane or diorganopolysiloxane-polyether block copolymer.

Modified aminoalkyl- and polyoxyalkylene-functional organopolysiloxanes exhibit delayed antifoaming activity in washing operations, minimizing foaming of rinse water. When applied to a pulverulent carrier, they may also be used in powder detergent formulations.

The invention relates to an anti-microbial and bacteriostatic preservative film and a production method thereof. The preservative film comprises, by weight, 50%-80% of polyving akohol with 500 to 2400 degrees of polymerization and 80% to 99% degrees of alcoholysis, 10% to 25% of water-solubility polyhydroxy plasticizer, 1% to 5% of polyoxyethylene, 1% to 5% of capacity-increase compatilizer and 5% to 15% of other assistants. The production method includes dissolving water-solubility polyhydroxy plasticizer in water with total weight consisted of 4 to 8 times formulation, adding polyving akohol, polyoxyethylene, capacity-increase compatilizer and other assistants, heating up above 95 DEG C to make the mixed solution completely dissolved in water, dispersing for 30 to 60 minutes at high speed, cooling to 50 DEG C to 70 DEG C, preparing a solution used for curtain coating and filming, and finally the preservative film can be prepared by a solution curtain coating method. The preservative film has good anti-microbial and bacteriostatic effects and functions to packed and fresh-keeping fruits and vegetables on the premise of no any extra anti-microbial and bacteriostatic chemical assistants.

A purification method in which, from a specific polyoxyalkylene derivative having a molecular weight of 8,800 to 100,000, an impurity differing in the number of hydroxyl groups is separated, the method including steps (A), (B), (C), and (D). Step (A): a step in which an aprotic organic solvent is used in an amount at least 5 times by weight the amount of the polyoxyalkylene derivative to dissolve the polyoxyalkylene derivative therein and give a solution; step (B): a step in which an adsorbent comprising an oxide containing at least one of aluminum and silicon is added to the solution in an amount 0.5 to 5 times by weight the amount of the polyoxyalkylene derivative to thereby yield a slurry; step (C): a step in which the slurry is stirred at 25° C. or higher; step (D): a step in which the polyoxyalkylene derivative is recovered from the slurry.

An alkaline detergent for an automatic analyzer is disclosed, which is consisted of an alkaline solution containing polyoxyalkylene alkylether as a nonionic surfactant, and a cloud point-adjusting organic solvent.

The present invention provides a solid soap composition comprising: a soap component (a); polyoxyalkylene-modified polysiloxane (b) that is expressed by formula (1) below, (where, R1 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, m represents an integer of 1 to 60, n represents an integer of 1 to 60, a represents an integer of 1 to 10, b represents an integer of 1 to 30, and c represents an integer of 0 to 30); and tetrakis (2-hydroxyalkyl) ethylene diamine (c) that is expressed by formula (2) below, (where, R2 to R5 are the same or different and each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms), as essential components. According to the present invention, it is possible to provide a cleaning agent capable of performing makeup removal and ordinary facial cleaning at the same time in single facial cleaning, that has sufficient foaming property, that provides a clean feel after cleaning, and that can sufficiently remove not only cosmetic foundations but also acid pigments.

Coated barrier fabrics are prepared with a two part, cold cure polyoxysiloxane composition and a unique two pass, two cure rate, coating process. Preferably, the coated fabrics have overlayed a second uncoated fabric on the inner surface of the coated substrate. This preferred process realizes a reusable medical barrier fabric with exceptional durability even after undergoing many laundering / autoclaving / drying cycles.

The present invention provides a water-soluble crosslinkable poly(oxyalkylene)-containing prepolymer. The crosslinkable poly(oxyalkylene)-containing copolymer prepolymer of the invention is prepared by reacting an amine-capped poly(oxyalkylene)-containing polyamide with a multifunctional compound having at least one ethylenically unsaturated group and a function group coreactive with the capping amine groups of the amine-capped poly(oxyalkylene)-containing polyamide. The amine-capped poly(oxyalkylene)-containing polyamide is a copolymerization production of a mixture comprising: (a) at least one poly(oxyalkylene)diamine, (b) optionally at least one organic di- or poly-amine, (c) at least one dicarboxyl derivative, (d) optionally at least one polycarboxyl derivative, and (e) a carbodiimide. The crosslinkable poly(oxyalkylene)-containing prepolymer of the invention can find use in economically producing contact lenses which have improved thermal stability. In addition, the present invention provides method for making a medical device, preferably an ophthalmic device, more preferably a contact lens.

The use of poly(oxybutylene)-poly(oxyethylene)-poly(oxybutylene) block copolymers in pharmaceutical compositions useful, for modifying the surfaces of contact lenses and other medical devices is disclosed. The present invention is based in-part on a discovery that this class of compounds is particularly efficient in wetting hydrophobic surfaces, such as the surfaces of silicone hydrogel contact lenses and other types of ophthalmic lenses, but do not induce foaming when used in conjunction with a peroxide-based contact lens disinfection regimen. Such compounds may also be useful for cleaning purposes. The use of the compounds as surfactants in peroxide-based compositions for disinfecting contact lenses therefore represents a preferred embodiment of the present invention.

The invention discloses a slimming warm-up oil, which is prepared by mixing 10-20 parts of lecithin,10-20 parts of polyoxyethylene, 10-20 parts of octadecyl hydroxyl betaine, 0.8-1 part of low molecular weight polyacrylamide, 10-15 parts of glycerol, 0.5-1.5 parts of tallow alkyl propanolamine and 30-40 parts of cation water. The slimming warm-up oil provided by the invention can be applied to the body before exercise, and has warm-up effect as well as slimming effect.

An object of this invention is to provide a cleaner composition that has a desirable cleaning property and is easily separable from pre-rinsing water even when cleaning an object produced by using a lead-free soldering flux; and a lead-free soldering flux removal system using a pre-rinsing method that can reduce the amount of waste fluid.The invention uses a cleaner composition for lead-free soldering flux, comprising (A) specific glycol ethers; (B) a specific polyoxyalkylene amine; and (C) a chelating agent that is at least one member selected from the group consisting of (c1) aliphatic hydroxycarboxylic acid chelating agents and (c2) (poly)phosphoric acid chelating agents.

The invention relates to the field of biomedical engineering, and discloses a dressing for promoting wound healing and a preparation method of the dressing. The method includes the following steps: (1) purifying alpha2 macroglobulin; (2) dissolving GHK-Cu, copper sulfate, leupeptin, carboxymethyl chitosan and polyethylene oxide in water, performing uniform stirring, and adding the alpha2 macroglobulin solution to obtain a spinning solution; and (3) performing electrospinning by using the spinning solution to obtain the dressing for promoting wound healing. The dressing for promoting wound healing prepared by the method is a medical material that can induce wound healing for a long time, can accelerate wound healing, and is very effective in treating wounds and skin injury.

Provided is a novel polyoxyalkylene compound which contains, at a molecular chain terminal, at least one reactive silicon-containing group represented by formula (1) per molecule and which has a mainchain that is a polyoxyalkylene polymer. Also provided are: a process for producing the novel polyoxyalkylene compound; a room-temperature-curable composition which includes the compound as a main component and can contain any of various crosslinking agents; a sealing material; and an article. (In formula (1), R1 and R2 are each a monovalent hydrocarbon group, a hydrogen atom, or a triorganosiloxygroup; n is 2 or larger; m is 1 or larger; and the broken line is a linking bond.)

The invention relates to polypropylene oxide structures containing addition compounds and the salts thereof. The invention is characterised in that the addition compounds can be obtained by reacting (a) one or more polyisocyanates comprising at least two isocyanate groups per molecule with: (b1) one or more compounds of formula Y-XH; (b2) optionally one or more compounds of formula G-(XH)n; (c1) one or more compounds of general formula Z-Q; and (c2) optionally one or more compounds of general formula M-Q. In addition the invention relates to the production of the addition compounds and the use thereof as dispersants, humectants and dispersion stabilisers, as well as to solids that are coated with the addition compounds.

A composition has a water dispersible esterified trimer acid (ETA) and a block co-polymer, especially a polyoxyalkylene block copolymer having EO and PO blocks. The composition may also have a polymeric surfactant antifoaming agent and an oil (especially a mineral oil or ester oil).

This invention provides a liquid composition that removes titanium nitride from a substrate without corroding tungsten or a low-k interlayer dielectric also present on said substrate. Said liquid composition has a pH between 0 and 4, inclusive, and contains the following: at least one oxidizing agent (A) selected from the group consisting of potassium permanganate, ammonium peroxodisulfate, potassium peroxodisulfate, and sodium peroxodisulfate; a fluorine compound (B); and a tungsten-corrosion preventer (C). The tungsten-corrosion preventer (C) either contains at least two different compounds selected from a group of compounds (C1) consisting of alkylamines, salts thereof, fluoroalkylamines, salts thereof, and the like or contains at least one compound selected from said group of compounds (C1) and at least one compound selected from a group of compounds (C2) consisting of polyoxyalkylene alkylamines, polyoxyalkylene fluoroalkylamines, and the like. The mass concentration of potassium permanganate in the abovementioned oxidizing agent (A) is between 0.001% and 0.1%, inclusive, and the mass concentration of the abovementioned fluorine compound (B) is between 0.01% and 1%, inclusive.

The invention discloses a polyvinyl alcohol / polyoxyethylene synergistic enhanced chitin material and a production method and a purpose thereof. The method comprises the following steps: adding chitin in a solution containing NaOH and urea, adding polyoxyethylene and polyvinyl alcohol, dissolving the raw materials through a refrigeration-unfreezing process to obtain a chitin solution; centrifuging the solution and defoaming the solution, casting the chitin solution and gelating the chitin solution to form a membrane, using a dilute acid solution to immerse the material for several minutes, using water for flushing to remove the residual sodium hydroxide and urea in the membrane to obtain a chitin moisture membrane; and pressurizing the chitin moisture membrane and heating the material to obtain the enhanced dried chitin membrane. In the invention, an application of PEO and PVA is capable of increasing the mechanical properties (comprising tensile strength and bending strength) of the chitin material, and effectively improves the brittleness of the material.

The invention discloses a preparation method of a silk fibroin tissue engineering scaffold based on a near-field electrospinning technology. The preparation method comprises the steps that a regenerated silk fibroin aqueous solution is mixed with a polyoxyethylene aqueous solution, the ratio of the mixed materials is adjusted, the viscosity characteristic of the whole mixture is changed, and a silk fibroin / PEO solution system which can be used for near-field electrospinning is prepared; then the near-field electrospinning printing technology is adopted, printing is carried out according to a scaffold model of a cross-shaped net structure circulating in a periodic cycle, and finally, the preparation of the silk fibroin tissue engineering scaffold is realized through a post-treatment processsuch as chemical modifier soaking. The preparation method is simple, the production efficiency is high, the inherent characteristics of the raw materials are not affected, the porosity of the prepared tissue engineering scaffold is high and adjustable, the pore size is proper, the mechanical property is good, and the specific surface area is large; and the biocompatibility and the biological activity of the scaffold material are good, the extracellular matrix can be simulated well, and the scaffold material is suitable for cell adhesion, proliferation and differentiation.

A method for treatment of esophagitis is disclosed in which a therapeutic composition is introduced into the esophagus to contact a mucosal surface within the esophagus. The pharmaceutical composition comprises a reverse-thermal gelation polyoxyalkylene block copolymer, a pharmaceutical substance and a pharmaceutical substance selected from the group consisting of glutathione and a precursor for glutathione biosynthesis.

The invention discloses a polyethylene oxide and application of a suppository matrix of which the molecular structure contains polyoxyethylene groups and C8-C24 alkyl in improving the stability of a suppository composition containing a fatty glyceride matrix. The invention also discloses a suppository composition of which the stability and the intracavity administration reservation functions are improved. The suppository composition comprises a fatty glyceride matrix, polyethylene oxide, a suppository matrix of which the molecular structure contains polyoxyethylene groups and C8-C24 alkyl anda suppository medicine, wherein the polyethylene oxide content is not lower than 1%, and the suppository matrix content is not lower than 10%.

A cationic electrodeposition coating composition having superior defoaming property and being capable of effectively preventing the generation of unevennes of drying is provided. A cationic electrodeposition coating composition comprising a binder resin containing a cationic epoxy resin and a block isocyanate curing agent and a defoaming agent, wherein the defoaming agent contains at least one of polyoxyalkylene compounds (A) represented by any one of the following formulae (1) to (3): ]R—(OA)n1]t-mQ[—(OA)n2-L]m   (1) [R—(OA)n1]t-mQ[—(OA)n2-L-(OA)n3-Q[—(OA)n4-R]t-1]m   (2) [R—(OA)n1]t-1Q-L-Q [—(OA)n2-L]t-1   (3) wherein Q is a reaction residual group formed by removing a hydrogen atom(s) from a number t of primary hydroxyl groups of nonreducing disaccharide or trisaccharide, L is the reaction residual group of isocyanate or the reaction residual group of dihalogenated alkyl, OA is an oxyalkylene group having a carbon number of 2 to 4, each of n1 to n4 is independently an integer of 2 to 40, t is an integer of 2 to 4 and m is an integer of 1 to 3 and smaller than t, but provided that the total number of OA's in a molecule is 10 to 80 per one of Q.

The invention provides air clay and a preparation method thereof. The air clay is prepared from quartz micro-powder, pharmaceutical grade shell powder, polyoxyethylene, alpha olefin sodium sulfonate, glycerol and sorbitol. The preparation method comprises the following steps of: (1) adding the quartz micro-powder which is used as a main body, the pharmaceutical grade shell powder which is used as a molecular structure connecting carrier, and the alpha olefin sulfonate which is used as a reaction element into a reaction kettle; (2) raising the temperature to ensure that the quartz micro-powder fully react with the shell powder to achieve a fermentation effect; (3) when the temperature is up to 85 DEG C, stopping heating, adding the polyoxyethylene and continuously mixing; (4) pouring a product out of the reaction kettle, moving the product to a U-shaped mixer, adding a 70-percent of the sorbitol solution, stirring and mixing, wherein the rotating speed of the mixer is 15rpm; (5) lowering the temperature to be 60 DEG C, adding the glycerol, and adjusting the rotating speed of the mixer to be 10rpm; (6) observing a flocculent drawing state of the product and pouring the product out after the product is agglomerated. The usability of the air clay is the same as that of plasticine, the shaping function of the air clay is superior to that of the plasticine, the fermenting and drawing functions are provided, and the air clay can be modeled and played repeatedly and randomly.

The invention discloses a viscosity reducer used in a heavy oil recovery process, and particularly relates to a low-power depolymerization emulsification viscosity reducer for heavy oil cold production and a preparation method thereof. The viscosity reducer is prepared by compounding 0.1-10wt% of polyoxyethylene grafted polyacrylamide, 40-60wt% of a crown ether surfactant and the balance water. The viscosity reducer has strong capability of heavy oil depolymerization emulsification under a low-power condition, and under the conditions of a rotation speed of 50rpm or below, a use concentrationof 0.1wt% or below, a temperature of 50DEG C and a stirring time of 1min or below, the viscosity of the heavy oil with a viscosity exceeding 10000mPa.S can be reduced by 99.0% or more, the viscosity of the heavy oil with a viscosity of 5000-10000mPa.S can be reduced by 98.0% or more, and the viscosity of the heavy oil with a viscosity of 1000-5000mPa.S can be reduced by 95% or above, and the problem that the seepage power of conventional emulsifiers can hardly emulsify heavy oil under an oil reservoir condition is effectively solved.

The present invention relates to a lubricating composition containing (a) an ester-containing viscosity index improver; and (b) a polyoxyalkylene polyol. The invention further provides a method for lubricating a mechanical device with the lubricating composition.