3542 results about "Diethylene glycol" patented technology

Compositions of matter including articles derived from (a) from 5 to 99.99 wt % of a modified polybutylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate and (2) contains a at least one residue derived from polyethylene terephthalate selected from the group consisting of antimony, germanium, diethylene glycol groups, isophthalic acid groups, cis isomer of cyclohexane dimethanol, trans isomer of cyclohexane dimethanol, sodium benzoate, alkali salts, napthalane dicarboxylic acids, 1,3-propane diols, cobalt, cobalt-containing compounds, and combinations thereof, and (b) from 0.01 to 95 wt. % of a member selected from the group consisting of (1) fillers, (2) a carboxy reactive component, (3) polyethyelene terephthalate, (4) a component including a polycarbonate and an impact modifier. The articles may be derived from various conversion processes, e.g., injection molding processes, extrusion processes, thermoforming processes, melt-blown process.

This invention relates to novel transdermal or transmucosal pharmaceutical formulation which reduces the occurrences of contamination of other individuals and the transference to clothing of the user. The novel formulation includes at least one pharmacologically active ingredient, and a solvent system having a monoalkylether of diethylene glycol and a glycol present in specified ratios, and a mixture of water and alcohol. The invention also relates to a method for inhibiting or delaying crystallization of an active agent in a pharmaceutical formulation.

A formulation, method and system for the topical, transdermal or transmucosal administration of a therapeutically effective active agent. Particularly, the invention provides a formulation, system and method for enhancing the permeation or penetration of active agents across the dermal or mucosal surfaces of a mammalian subject. The formulation includes a plant extract of the genus Curcuma of the family Zingiberaceae, a germacrone, or a natural or synthetic constituent thereof, which has been found to increase penetration of the active agent across the dermal or mucosal surface. If desired, a secondary permeation enhancer of a polyalcohol, a monoalkyl ether of diethylene glycol, a tetraglycol, or a mixture thereof can be used for certain active agents for optimal permeation enhancement.

An article having a nonfouling surface thereon is comprises: (a) a substrate having a surface portion; (b) a linking layer on the surface portion; and (c) a polymer layer formed on the linking layer, preferably by the process of surface-initiated polymerization of monomeric units thereon, with each of the monomeric units comprising a monomer core group having at least one protein-resistant head group coupled thereto, to thereby form a brush molecule on the surface portion. The brush molecule comprising a stem formed from the polymerization of the monomer core groups, and a plurality of branches formed from the hydrophilic head group projecting from the stem. Methods of making and using such articles, are also described.

A polymer composition and its use for thin film packaging applications including on a dry basis: a) from 45 to 90% by weight of starch; b) from 0.1 to 15% by weight of a water soluble polymer selected from polyvinyl alcohol, polyvinylacetate, and copolymers of ethylene and vinyl alcohol which have a melting point compatible with the molten state of the starch component; and c) from 5 to 45% by weight of one or more plasticizers having a molecular weight in the range of 50-6000, more preferably 50-2500 and more preferably still 100-400 and desirably selected from the group consisting of sorbitol, glycerol, maltitol, xylitol, mannitol, erythritol, glycerol trioleate, tributyl citrate, acetyl tri-ethyl citrate, glyceryl triacetate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, polyethylene oxide, ethylene glycol, diethylene glycol or polyethylene glycol.

An oil based ink composition for ink jet recording containing, as an organic solvent, a mixture of a diethylene glycol compound that is liquid at ordinary temperature under atmospheric pressure and a dipropylene glycol compound that is liquid at ordinary temperature under atmospheric pressure at a diethylene glycol compound to dipropylene glycol compound weight ratio of 20:80 to 80:20, and an ink jet recording method using the oil based ink composition are disclosed. The oil based ink composition for ink jet recording provides high quality images with high gloss, excellent abrasion resistance and water resistance, and freedom from blur or bleeding.

Disclosed is a topical skin care composition that includes water, silymarin, hydrolyzed algin, palmitoyl tripeptide 8, ceramide 2, pomegranate extract comprising pomegranate sterols, glycerin, disodium EDTA, caprylic/capric triglyceride, shea butter, C12-15 alcohols benzoate, dimethicone, glyceryl stearate and PEG 100 stearate, cetyl alcohol, stearyl alcohol, stearic acid, butylene glycol, caprylyl glycol, and (s) a mixture of acrylamide/sodium acryloyldimethyl taurate copolymer, isohexadecane, and polysorbate 80.

The present invention relates to materials composites of a moulded article of at least one transparent or translucent dyeable plastics moulding compound which moulded article is bonded to at least one transparent or translucent surface layer and/or to decorative films, functional films or coats or rubbers or other plastics, wherein the plastics moulding compound used for the manufacture of the moulded article, the surface layer or the other plastics contains in an amount of 0.01 to 5.0% by weight, preferably 0.01 to 2.0% by weight, each related to the total weight of the moulding compound, at least one lubricant selected from the group consisting of sorbitan esters, sebacic acid esters, dodecanedioic acid esters, docosanoic acid esters, glycerine, glycol, diethylene glycol, stearoyl amide, stearyl stearate, ethylene bissteroyl amide, octane pyrrolidone, and from the group consisting of non-polar paraffin oils and of tetracosanes, and wherein a permanent adhesion to the other plastics layers and/or sheets or coats or rubbers or other plastics is achieved.

A conductive composition capable of producing a conductive paint with excellent flexibility and a high conductivity comparable to that of metallic silver, without using high temperatures as film forming conditions. The conductive composition includes a particulate silver compound and a binder, and optionally a reducing agent and a binder. Silver oxide, silver carbonate and silver acetate and the like are used as the particulate silver compound. Ethylene glycol, diethylene glycol, and ethylene glycol diacetate and the like are used as the reducing agent, and a fine powder of a thermosetting resin such as a polyvalent phenol compound, phenol resin, alkyd resin or polyester resin, or a thermoplastic resin such as a styrene resin or polyethylene terephthalate, with an average particle diameter from 20 nm to 5 μm is used as the binder. Furthermore, the average particle diameter of the particulate silver compound is preferably from 0.01 to 10 μm.

The invention discloses a silicate cement grinding aid and a preparation method thereof. The silicate cement grinding aid is prepared from the following main raw materials by weight: 3-6 parts of sodium hexametaphosphate, 2-5 parts of aluminum sulfate, 5-8 parts of tetra sodium salt of amino trimethylene phosphonic acid (ATMP.Na4), 4-6 parts of ethylene diamine tetra (methylene phosphonic acid) sodium, 38-45 parts of polymeric alkylol amine, 34-42 parts of triisopropanolamine, 8-12 parts of waste engine oil, 2-5 parts of sodium alpha-olefin sulfonate, 10-16 parts of sorbitol, 15-20 parts of diethylene glycol, 8-13 parts of polypropylene wax, 6-10 parts of oxidized polyethlene wax, 4-8 parts of lignite wax, 20-30 parts of odium thiosulfate, 12-18 parts of sodium thiosulfate and 15-20 parts of quicklime powder. The prepared silicate cement grinding aid has the advantages that the quality is stable, the effect is remarkable, the adding amount is small, the use is simple, and the adding is more convenient and reliable to control.

The present invention comprises non occlusive compositions for transdermal delivery of nicotine, and more particularly pharmaceutically acceptable salts thereof, and methods of making same. The composition may, for example, be a gel suitable for transdermal or transmucosal applications. The compositions of the present invention typically comprise a mixture of water and alcohol, and a solvent system having a mono alkyl ether of diethylene glycol and a glycol present in specified ratios and in specific amounts, wherein the pH of the gel is usually between a pH of 5.5 and 7. The compositions may include further components, for example, the hydroalcoholic vehicle may further comprise additional penetration enhancer(s), buffering agent(s), antioxidant(s), stabilizer(s) and/or gelling agent(s). The invention also relates to a method for the sustained delivery of nicotine pharmaceutically acceptable salts to treat a variety of conditions and disorders.

The invention discloses a microcellular polyurethane elastomer and a preparation method thereof. The elastomer contains two components, i.e., a polyol component and a prepolymer component, wherein the polyol component comprises polyester polyol, a chain extender, a foam stabilizer, water, a catalyst and the like; and the prepolymer component comprises polyester polyol, isocyanate and the like. The polyester polyol in the polyol component is prepared from a mixture of aromatic dibasic acid and aliphatic diacid and a mixture of diethylene glycol and other dihydric alcohols by means of polycondensation reaction. Compared with common microcellular polyester-type elastomers, the prepared elastomer has higher hardness and mechanical properties as well as better abrasive and bending resistances, besides, the flowability of materials is good. The material can be used in the fields like soles, solid tires, buffer blocks and the like. The preparation method is simple and feasible.

The invention relates to a preparation method of cerium oxide nanoballs, and belongs to the technical field of the preparation processes of the inorganic nanomaterials. The key points of the method of the invention include: stirring and mixing cerium salt and a certain amount of surfactant at room temperature, dissolving the mixture in a mixed solution of water and an organic solvent and ultrasonically processing the mixture for 5 to 10 minutes, wherein the cerium salt is optimally cerium nitrate; the surfactant is most preferably polyvinylpyrrolidone; and the belonged organic solvent is most preferably diglycol; then transferring the mixed solution into a high pressure reaction kettle to perform a solvothermal reaction; heating the mixed solution to perform reaction for 24 to 28 hours at the temperature of 100 to 200 DEG C so as to obtain the cerium oxide nanoball sol; evaporating the sol at the temperature of 1500 o 180 DEG C to dryness; and forging the obtained powder for 1 to 4 hours at the temperature of 400 to 600 DEG C; and finally obtaining the cerium oxide nanoballs in the shape of yellow solid powder. The nanoballs have a particle size ranging from 30 to 160nm and high performance and can be applied in fields of ultraviolet light shielding, mechanical polishing and automobile exhaust catalyzation and the like.

The invention relates stable, low viscosity hair care compositions having high surfactant content comprising linear sulfates (with alkyl tail of C12 and above) and branched sulfates (with alkyl tail of C12 and above), a water-miscible solvent such as dipropylene glycol or glycerin. Suitable compositions have a ratio of (Linear anionic surfactant/Branched anionic surfactant)/Miscible solvent from about 0.2 to about 5 and a viscosity of less than about 500 cP at 26.5° C.

The invention provides regenerated terylene filament, which has higher mechanical properties and is prepared by depolymerizing waste polyester with polyol as a solvent. The PET (Polyethyleneglycol Terephthalate) granules are depolymerized in a homogeneous state by optimizing the solvent, pressure, temperature, time, catalyst and parameter conditions as well as controlling the pressure and temperature, so as to improve the depolymerization reaction rate. A composite catalyst is adopted, thus the ratio of the solvent to waste polyester is strictly controlled, the polyol consumption is reduced, the process economy is improved, the generation of diethylene glycol is reduced, and the quality and spinnability of the regenerated polyester are improved. The depolymerization rate of the polyester and the mechanical properties of the regenerated terylene filament are improved by adding a third component, thus the mechanical properties of the prepared regenerated terylene filament achieve the properties of the conventional terylene filament. The preparation method is simple, economical and environmentally friendly and is suitable for industrial production.

The invention relates to a filament low-melting-point polyester fiber and a preparation method thereof. The filament low-melting-point polyester fiber is in a skin-core structure, a skin layer is made of low-melting-point polyester; a core layer is made of PET (polyethylene terephthalate); the low-melting-point polyester consists of a terephthalic acid chain segment, an isophthalic acid chain segment, an ethylene glycol chain segment, a diethylene glycol chain segment, a molecular weight modifier chain segment and a 1, 12-Dodecanediol chain segment containing branched chains; a molecular weight modifier corresponding to the molecular weight modifier chain segment is specifically a monoacid series or a diacid series; the preparation method of the filament low-melting-point polyester fiber comprises the following steps: polymerization of the low-melting-point polyester and skin-core composite spinning, so as to obtain the filament low-melting-point polyester fiber. The prepared filament low-melting-point polyester fiber has the advantages that the initial melting point is reduced, the melting speed is increased, the polyester fiber is immediately melted at the corresponding temperature, and the melting effect is good.

The invention discloses a method for preparing silver nanowires with smaller diameters through mixing polyhydric alcohol, in which, silver nanowires with different diameters, different lengths and smaller diameters can be obtained by regulating the volume ratio, reaction temperature, and reaction time of ethanediol and diethylene glycol. The beneficial effects of the invention are: (1) the silver nanowires with different diameters and different lengths can be obtained, and the diameters of the silver nanowires may be controlled to be 40 nm or lower, even may be reduced to about 20 nm; (2) the reaction condition is not required to be accurately controlled, the uniformity of the diameters of the silver nanowires is easily controlled, the purity is relatively high, and can be prepared in a large scale; and (3) no expensive experiment apparatus is needed and the preparing cost is low.

The present invention relates to an aligning agent for liquid crystal containing at least a polymer and solvent selected from polyamic acid and polyimide gained by dewatering closed-loop, the solvent contains: (A) a first solvent containing compound with formula (I); (B) a second solvent selected from at least one of N-methyl-2-pyrrolidone, gamma-butyrolactone, 1,3-dimethyl-2-imidazolone, N, N-dimethylformamide and N, N- dimethylacetylamide; and (C) a third solvent selected from at least one of butyl cellosolve, diacetone alcohol, carbonic sub-propyl ester, diethylene glycol diethyl aether and ethyl-3- oxethyl propionic ether. (In formula (I) the R respectively represents alkyl with 3 to 10 carbon atoms).

The invention relates to a blocking remover of a gas well shaft. The blocking remover comprises, by weight, 5-25% of an alcohol ether compound, 0.5-10% of a dispersant, 1-10% of a cleaning agent, and 0.5-5% of chelating agent, with the balance being a nitrogen-containing polar solvent, wherein the nitrogen-containing polar solvent is one selected from N,N dimethyl formamide, N,N dimethyl acetamide, and N-methyl pyrrolidone, the alcohol ether compound is one selected from glycol-ether, glycol-propyl ether, glycol-butyl ether, and diglycol-ether, the disperant whose micelle particle size is from 20nm to 100nm is a middle-phase microemulsion-type dispersant mixed by kerosene, water, a surfactant and a cosurfactant, the cleaning agent is one selected from allene diamine, acetonitrile and pentylamine, and the chelating agent is one selected from sodium citrate and EDTA. The blocking remover has the advantages that corrosivity is weak, that the speed of dissolving blockage is fast, that the product performance is stable in high temperatures, and that the blocking remover can reduce damages caused by water locking and fouling in areas close to gas wells, and can recover the permeability of storing layers.

The invention relates to real-stone paint and a preparation method thereof and belongs to the technical field of building decorative materials. Firstly, an inorganic mineral rheological agent and a nonionic water-soluble cellulose ether are combined, so that the two components have the synergistic effect of guaranteeing viscosity of the real-stone paint and excellent constructability, and on the basis hereinabove, the usage amount of cellulose ether, which has water retention effect, in the real-stone paint is reduced, so that a paint film is reduced in the water retention effect and moisture volatilization is improved; secondly, alcohol ester-12 is combined with any one of four film forming additives, comprising ethylene glycol monobutyl ether, propylene glycol butyl ether, diethylene glycol butyl ether and benzyl alcohol, which have high volatile speed, thus accelerating film forming. For solving of a problem of poor antifouling performance of the real-stone paint, through reasonable combination of particle size of color sands and usage of a hydrophobic agent, the real-stone paint can form a compact film and a nano hydrophobic coating layer, which is completely composed of nano hydrophobic particles, is formed on the surface of the paint film, so that the paint film is reduced in surface energy and water absorbency, and is improved in antifouling performance.

The invention adopts a melt polycondensation method. A few of monomers of C2-5 aliphatic dibasic alcohol, diethylene glycol, polyglycol, fumaric acid, maleic anhydride, lactic acid, glycolic acid, ethanolamine, C2 to C12 aliphatic diamine, glutamic acid, lysine, glycine, etc. are taken as basic materials to be synthesized to obtain non toxic unsaturated polyester-amide resin with adjustable degradation rate and lower cost; wherein, the partial fumaric acid or maleic anhydride can be replaced with phthalic anhydride, isophthalic acid, or adipic acid. The resin yearns for being used as matrix resin of medical bone internal fixation material, tissue engineering scaffold material, bone tissue temporary substitutes, environmental protection type bonding agent, environmental protection type fiberglass reinforced plastics, environmental protection type coating material, disposable tableware, packing material, shopping bags, disposable bags, drug coating or capsule, drug delivery (controlled-release) material, agricultural mulching films, etc., and can be recovered to be utilized.

A melamine impregnated bond paper and chipboard compressed bright surface wood based board is composed of 60-70 portions of water, 100 portions of melamine, 90-130 portions of formaldehyde, diethylene glycol monoethylether 10-15 portions, aminocaprolactam 3.5-5.5 portions and caustic soda 0.3-0.6 portions. Firstly, it wipes off the powder on the surface of the chipboard, aligning them with melamine impregnated bond paper covering the chipboard, increasing the temperature, sending the chipboard and the paper into the compressing machine, ensuring the aligning of the center line of the chipboard and that of the compressing machine, closing the compressing machine, sending out the board, trimming, and getting the bright artificial board. It is bright, with good luster saturation, fine wearing resistance, heat, burning, crack, light and corrosion features.