3831 results about "Hydroxyethyl cellulose" patented technology

An extended release dosage composition of pharmaceutically active substances that have a water contact angle (θ) such that cos θ is between +0.9848 and −0.9848 presented as a matrix tablet containing the said pharmaceutically active substances, with/without suitable pharmaceutical excipients in intimate mixture with two groups of intelligent polymers having opposing wettability characteristics, one demonstrating a stronger tendency towards hydrophobicity and the other a stronger tendency towards hydrophilicity, the polymer combination being between the ratios of 1:50 and 50:1 amounts effective to control the release of said pharmaceutically active substances in a mathematically predictable manner, wherein the polymer demonstrating a stronger tendency towards hydrophobicity is not less than 5% wt/wt and preferably between 5-70% wt/wt of the final formulation composition. The intelligent polymers being ethylcellulose (EC) as a more strongly hydrophobic and hydroxyethylcellulose (HEC) and/or hydroxypropyl methylcellulose (HPMC) as more strongly hydrophilic (the ratio of HEC to HPMC being between 1:100 and 100:1). The matrix tablet is optionally coated with an enteric coat, 0-5%-15% wt/wt to prevent the initial burst effect seen in such systems and to impart gastrointestinal tract (GIT) “stealth” characteristics especially in the presence of food.

The invention provides a water-based drilling fluid composition containing an amine compound, which comprises the following components: a 0.5 to 5 weight percent of water-based amine compound as shown in formula I: RHN-Y-[OY']X-NHR', wherein Y, Y',x, R and R' are as defined in a manual; 0.1 to 1.0 weight percent of water-based tackifier which is selected from one or more types of xanthan gum, acrylamide-acrylic copolymer and hydroxyl ethyl cellulose; 0.5 to 5 weight percent of water-based fluid loss agent which is selected from one or more types of modified lignite, acrylic polymer, modified starch and modified cellulose; 2 to 12 weight percent of water-based inhibitor which is selected from one or more types of potassium chloride, potassium sulfate, formic acid, formic acid sodium, potassium chloride and epoxypropyltrimethylammonium chloride; and the composition can also further comprises coating agent, weighting agent, lubricant, borehole stabilizer and the like. The water-based drilling fluid composition has good inhibiting performance to clay shale drilling cuttings.

The present patent application relates to an agent for the coloring of keratin fibers based on oxidative dye precursors and/or direct-penetrating dyes, that contains a combination of at least one cationic hydroxyethyl cellulose and at least one acrylate copolymer in a suitable cosmetic carrier as well as a multicomponent-kit for the coloring of keratin fibers.

The invention relates to a chromium-free zinc aluminum anticorrosive paint and a preparation method. The invention adopts the technical scheme that the preparation method comprises the following steps of: stirring 5 to 25 weight percent of flake zinc powder and 5 to 15 weight percent of flake aluminum powder uniformly, adding 25 to 40 weight percent of organic solvent, 1.1 to 1.8 weight percent of dispersant, 3 to 8 weight percent of corrosion inhibitor and 3 to 10 weight percent of inorganic additive into the powder, and stirring the mixture for 20 to 40 minutes to form a base material; and then stirring 5 to 15 weight percent of modified resin, 1 to 3 weight percent of organic silane coupling agent and 25 to 30 weight percent of organic solvent uniformly, and adding the mixture into the base material; or stirring the mixture for 30 to 50 minutes to obtain the chromium-free zinc aluminum anticorrosive paint; or stirring the mixture for 30 to 50 minutes, adding 0.05 to 0.5 weight percent of hydroxyethyl cellulose into the mixture, and stirring the mixture for 20 to 50 minutes to obtain the chromium-free zinc aluminum anticorrosive paint. The preparation method has the characteristics of environment friendliness, low energy consumption and low cost; and a coating coated by the prepared chromium-free zinc aluminum anticorrosive paint has high impact strength, good corrosion resistance, strong bonding force and high hardness.

The invention particularly relates to a smell-purifying inner wall latex paint and a preparation method thereof, belonging to the field of building decoration materials. The smell-purifying inner wall latex paint is prepared from the following raw materials in parts by weight: 22-28 parts of water, 0.4-0.5 part of hydroxyethyl cellulose, 0.1-0.2 part of a water-based multifunctional additive, 0.5-0.7 part of a water-based dispersant, 0.2-0.3 part of a water-based wetting agent, 0.4-0.5 part of a water-based defoaming agent, 0.4-0.6 part of a mildewproof agent, 15-18 parts of titanium pigment, 8-10 parts of kaolin, 10-15 parts of calcium carbonate, 3-4 parts of diatomite, 3-4 parts of negative ion slurry, 1-2 parts of imidazolidone, 20-25 parts of styrene-acrylic emulsion, 1.5-2.0 parts of a coalescing agent, 1.0-1.2 parts of an antifreezing agent, 0.2-0.3 part of a bactericidal preservative and 1.0-1.5 parts of a thickening agent. The smell-purifying inner wall latex paint prepared by the preparation method disclosed by the invention can simultaneously achieve low smell, low VOC (volatile organic compounds) and a function of purifying indoor air.

The invention provides a real stone paint. The real stone paint comprises, by weight, 90-130 parts of water, 2-5 parts of hydroxyethyl cellulose, 2-5 parts of a dispersant, 1-3 parts of a wetting agent, 4-8 parts of an antifoaming agent, 2-3 parts of an antiseptic, 100-150 parts of an emulsion, 5-12 parts of a film forming assistant, 1-3 parts of a pH adjusting agent, 5-20 parts of an antifreeze agent and 400-900 parts of a color sand component, wherein the color sand component comprises two or more than two natural stone flours with similar color. The invention further provides a preparation method of the real stone paint. The natural stone flowers with similar color in raw materials are blended in the embodiment of the invention to balance the color difference of all the natural stone flours, so even the color of one of the natural stone flours changes, the color difference of real stone paint products in batches is very small under the contrast of other natural stone flours with similar color, thereby the color difference change of the real stone paint is well controlled.

Viscosity-modified carbohydrate binder compositions are described. The binder compositions may include a carbohydrate, a nitrogen-containing compound, and a thickening agent. The binder compositions may have a Brookfield viscosity of 7 to 50 centipoise at 20° C. The thickening agents may include modified celluloses such as hydroxyethyl cellulose (HEC) and carboxymethyl cellulose (CMC), and polysaccharides such as xanthan gum, guar gum, and starches.

The invention relates to a bacteriostatic antistatic multifunctional non-woven fabric which is fabricated by the steps of unwinding non-woven gray fabric; applying finishing agent by using an ultrasonic foam applicator; extruding out redundant finishing agent by using a rolling mill; and then drying by using a baking oven and winding. The finishing agent includes the following components: sodium dodecyl sulfate, hydroxyethyl cellulose, nanometer silver powder, penetrating agent JFC, nano-silica, gamma-aminopropyltriethoxysilane, sorbitan ester, cetyltrimethyl ammonium chloride, methacrylic acid, beta-cyclodextrin and spices. The non-woven fabric has multiple functions of being antibacterial, anti-static, anti-ultraviolet, washing-resisting, fragrance lasting and the like. Especially the ultrasonic foam applicator is utilized to conduct foam finishing, and the finishing agent can be evenly penetrated in the fiber structure by means of the effect of ultrasonic waves, so as to lead nanometer material in the finishing agent and particles of the spices to disperse in the fabric and to be wrapped by organic matters to form a microcapsulation state, so that all functions and effects are lasting.

The invention discloses multifunctional nano compound treating fluid for protecting paper cultural relics. The multifunctional nano compound treating fluid takes deionized water as a solvent, and comprises nano magnesium hydroxide, nano titanium dioxide and hydroxyethyl cellulose, wherein nano magnesium hydroxide accounts for 0.2-1.0% of the weight of deionized water, nano titanium dioxide accounts for 0.1-0.8% of the weight of deionized water, and hydroxyethyl cellulose accounts for 0.2-0.8% of the weight of deionized water. The invention also discloses a preparation method of the multifunctional nano compound treating fluid. The multifunctional nano compound treating fluid can be used for large-area treatment of the paper cultural relics, and can be used for providing protection for deacidification, solidification, light-resistant degradation and mould proofing of the paper cultural relics during a large-area treatment of the paper cultural relics. The pH value of the paper cultural relics treated by the multifunctional nano compound treating fluid can reach an alkalescence degree, and the paper cultural relics have a certain alkali residue, can resist external acid, can be greatly improved in tensile strength, and have a certain antibacterial property.

The invention discloses a suspension type liquid compound fertilizer and a preparation method thereof, wherein the suspension type liquid compound fertilizer comprises the following components according to weight parts: 22 to 38 parts of mother liquor of suspension agent and 78 to 62 parts of nitrogenous fertilizer, phosphate, potassic fertilizer and trace elements. The mother liquor of suspensionagent consists of the following components according to weight parts: 4 to 12 parts of hydroxyethyl cellulose, 3 to 7 parts of silicon dioxide and 15 to 19 parts of water. The fertilizer has good stability and homogeneity, and can provide trace elements and fertilizer nutrients for crops simultaneously, thus leading the crops to absorb a large amount of elements and be complemented with trace elements simultaneously, leading to high nutrient utilization rate, and saving large amount of labor cost and fertilizer cost for peasants.

A low VOC, HAPs free, substantially non-aqueous slurry for use as a rheology modifier in aqueous systems including but not limited to latex paints. The slurry comprises a particulate water-swelling polymer such as hydroxyethyl cellulose, mineral oil carrier liquid, a non-ionic surfactant, a particulate thickening agent, a defoamer, and optionally an amine component.

The invention discloses a cosmetic and a preparation method thereof. The cosmetic is prepared from five components of A, B, C, D and E. The cosmetic is composed of thirty raw materials including deionized water, hydroxyethyl cellulose, allantoin, carbopol U20, propanediol, 1,3-butanediol, sodium hyaluronate, an aloe vera extract, a natto extract, asiaticoside, vitamin C, bisabolol, an amino acid humectant, D-panthenol, VC ethyl ether, nicotinamide, glabridin, tranexamic acid, ceramide, algal polysaccharide, glucan, dipotassium glycyrrhizinate, an epidermal growth factor (EGF), triethanolamine, isothiazolinone, essence, squalane, jojoba oil, vitamin E oil and crystal sparkling pearl powder. The cosmetic has the functions of making skins fine and smooth, brightening the skins, repairing sensitive skins, controlling oil, toning skins and modifying skin blemishes, has no side effect or no dependence, and does not threaten health of a human body.

The invention discloses a fume anticorrosive paint which is prepared from 20.2-26.3% of nano modified polyurea, 17.4-21.5% of a titanium nano polymer, 12.0-14.0% of epoxy resin, 8.5-12.7% of a nano oxide particle intensifying agent, 5.2-7.4% of hydroxyethyl cellulose, 3.0-8.0% of talcum powder and 8.3-14.2% of a thickening agent. By adopting the method, the fume anticorrosive paint disclosed by the invention has the advantages that the adhesion property is high, the mechanical strength is high, the high-temperature smudging property is good, the anticorrosion effect is good, and toxic gases are not easy to generate in a high-temperature environment.

The invention relates to gum-protecting whitening toothpaste. The gum-protecting whitening toothpaste is prepared from the following components: sorbitol, xylitol, sodium phytate, brilliant blue pigment, sodium lauroyl sarcosine, ethylene diamine tetraacetic acid (EDTA) disodium, plant chitosan, trehalose, sodium saccharin, sodium pyrophosphate, glycerol, sodium hyaluronate, xanthan gum, hydroxyethyl cellulose, polyvinyl pyrrolidone (PVP) cross-linking agent, shell powder, silicon dioxide (friction type), silicon dioxide (thickening type), zinc citrate, lysozyme, pawpaw extract, vitamin E, peppermint essence, silica (whitening particles) and pure water. The components coordinate with one another, so that the effects of protecting gum and whitening teeth are achieved.

A modified cellulose product comprising cellulose ether, such as carboxymethyl cellulose, hydroxyethyl cellullose, carboxymethyl hydroxyethyl cellulose, methyl cellulose, hydroxyethyl methyl cellulose or ethyl hydroxyethyl cellulose, or xanthan gum product, characterized in that it further comprises salts of aluminium-, ferro-, ferri-, zinc-, nickel-, tin(2)- or tin(4)-cations, and nitrilo-tri-acetic acid, 1,2-cyclo-hexan-di-amin-N,N,N',N'-tetra-acetic acid, di-ethylen-tri-amine-penta-acetic acid, ethylen-di-oxy-bis(ethylen-nitrilo)-tetra-acetic acid, (N-(2-hydroxy-ethyl)-ethylen-diamin-N, N',N',tri-acetic acid, tri-ethylen-tetra-amine-hexa-acetic acid or N-(hydroxyethyl) ethylene-di-amine-tri-acetic acid as a ligand. The product can be used especially as a drilling mud additive.

The invention relates to a fluid loss control agent for drilling fluid, which is prepared through reacting natural humic acid with sodium-hydroxide to obtain humic sodium salts, then carrying out reduction copolymerization with sulfonated asphalt, hydroxyethyl cellulose, polyacrylamide, water-soluble silicon oil AND methyl aldehyde.

The invention relates to multifunctional green environment-friendly interior wall emulsion paint comprising a styrene-acrylate copolymerized microemulsion, pure water, hydroxyethyl cellulose, an antifoaming agent, propylene glycol, titanium dioxide, heavy calcium carbonate powder, kaolin, saponite, a film-forming auxiliary agent, a plant scent agent, nano-grade titanium dioxide powder, nano-grade silica powder, zinc oxide powder, negative ion powder, ferromanganese powder, pyrethrin, polyvinyl alcohol, an elastic acrylic emulsion, and the like. The multifunctional green environment-friendly interior wall emulsion paint is characterized by aging resistance, peeling resistance, discoloration resistance, good weathering resistance, no toxicity, no odor, good leveling property, and easy construction. The paint can be prepared into a plurality of colors. With the paint, a decorated wall surface can be provided with elegant and splendid effects, and beautiful and dignified appearances as natural marbles. The production cost of the paint is low. With the paint, a produced paint film has a strong antifouling function, and has mould proofing and algae inhibiting functions. Also, the paint has good functions of sterilizing, disinfecting, and electromagnetic radiation resisting.

The invention relates to a hair dye, especially a natural plant hair dye. Wherein, it is formed by mixed A and B solutions; A agent is formed by agent and metal chelant, while the agent can be guar gum, polyquaternary ammonium salt or glycol cellulose, and the chelant can be soluble ferric salt or ferrous salt; B agent contains pomegranate bark extractive and glycol cellulose; while it also can contain logwood extractive as color agent. The invention has short dye time, uniform dye and washing resistance, nearly without side effects.

A method for controlling Pitch and Stickies is disclosed. The method comprises adding hydrophobically modified hydroxyethyl cellulose (HMHEC) and cationic polymers to a cellulosic fiber slurry (pulp) or to a paper process or to a paper making system and results in a higher degree of inhibiting organic deposition and retention of pitch on paper fiber as compared to the inhibition of the individual ingredients. The combination of HMHEC and cationic polymers surprising results in a synergistic effect.

The building paint consists of water, hydroxyethyl cellulose, diisobutylsulfo sodium succinate, epoxyvinyl alkylphenol ether, methyl silicon oil, propylene glycol, nano titania assistant and other nine kinds of components. The nano composite weather-resisting titania building paint for outer wall can absorb and scatter ultraviolet ray, and has powerful antiageing performance and wide application.