Method of preparing biodecomposable compositions based on cellulose ether |
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IPC classes for russian patent Method of preparing biodecomposable compositions based on cellulose ether (RU 2395540):
Method for preparing polysaccharide or polysaccharide ether solution and solid composition for preparing this solution / 2322461
Invention describes a method for preparing polysaccharide or polysaccharide ether solution showing viscosity value 1000 mPa x s or less. Method involves addition of polysaccharide or polysaccharide ether and an alkaline depolymerizing agent to an aqueous medium. Polysaccharide or polysaccharide ether and alkaline depolymerizing agent are added to aqueous medium simultaneously. Also, invention describes a solid composition used in preparing low-molecular polysaccharide ethers aqueous solution with the high content of a solid substance that comprises polysaccharide ether and alkaline depolymerizing agent. Alkaline depolymerizing agent is chosen from group consisting of sodium percarbonate, carbamide peroxide in combination with a base, sodium persulfate in combination with a base, 3-chloroperoxybenzoic acid in combination with a base, and their mixtures. Invention provides preparing composition used in paper industry and in foam flotation for separations of minerals wherein this composition shows the required low viscosity and the high content of solid substances.
 Binding compound for the roll applied paste composition / 2316568
The invention is pertaining to the binding compound used for production of the paste composition. The binding composition for production of the glues has at least 10 % of its mass composed of the polysaccharide, which has passed the surface treatment and present in the form of the particles or the mixture of two or more such polysaccharides having passed the surface treatment polysaccharides in the form of the particles and, at least of 3 mass % of the natural or synthetic laminated silicate in the form of the particles, either the mixture of two or more the natural laminated silicates or the mixture of two or more the synthetic laminated silicates in the form of their particles, or the mixture of one or several natural and one or several synthetic laminated silicates. The composition may also contain, at least, one water-soluble or the water dispergated synthetic polymer. The invention also presents description of the glue containing, at least, 20 mass % of the waters and, at least, 1 mass % of the composition.
Inhibited water-soluble cellulose ether and method for its preparing / 2311425
Invention relates to a method for preparing inhibited water-soluble cellulose ether involving the following steps: (a) treatment of moist cellulose ether with dialdehyde solution, and (b) drying and grinding cellulose ether. Saline aqueous solution representing a solution is added to cellulose ether simultaneously or together with dialdehyde solution wherein aqueous solution consists of at least two salts and wherein one salt represents weak acid with pK value from 5.5 to 8.5, and another salt represents salt of this weak acid with pK value from 5.5 to 8.5 that provides pH value of cellulose ether from 6.0 to 8.0 under homogenous condition. Except for, invention relates to inhibited cellulose water-soluble ether that is used widely as glues, thickening agents or anticoagulants.
Agglomerate of the binders, the method of its production / 2293753
The invention is pertaining to the field of the granulated agglomerate of the binders and to the method of its production. The granulated agglomerate of the binders for production of the means for coating of the surfaces contains at least the natural or synthetic polysaccharide on the basis of cellulose, and the synthetic polymeric compound selected from polyvinyl acetate. At that 5 mass % of it makes the water solution or the dispersion of the particles with the diameter laying above the middle size of the particles (D50), and the water solution or the dispersion of the particles with the diameter laying below the middle sized of the particles (D50), after dissolution within 1 hour or less have viscosities, which are less than by 20 % differ from each other, and at that at least 50 % of the particles have the diameter exceeding 0.5 mm. The method of production of the above-indicated agglomerate, at which the composition containing at least the natural or synthetic polysaccharide on the basis of cellulose and at least the synthetic polymeric compound, is selected from polyvinyl acetate, is subjected to the pressure exceeding 10 kH/cm2 or to the specific pressure force of the rolls from 2 kH/cm up to 150 kH/cm and then it is comminuted. At that the natural or synthetic polysaccharide and the synthetic polymer compound are granular.
 Water-dispersible powder polymer composition and a method of producing fluids with high viscosity / 2134702
Sulphur-cured rubber particle surface activation and/or devulcanisation process / 2354671
Destruction of sulphur bridges and recovery of sulphur is ensured by bioprocessing of rubber particles in a medium containing mesophilous, anaerobic and/or mesophilous, optionally anaerobic and/or mesophilous microaerophilic bacteria and/or one or more enzyme system of the specified bacteria in environment appropriate for the specified bacteria living.
 Biodegradable granular polyolefin blend and method of production / 2352597
Biodegradable granular polyolefin blend represents antimisting granules sized 2-8 mm of apparent bulk density 530-630 kg/m3, granule density less than 920-1300 kg/m3. Herewith melt flow index (MFI) of the parent polyolefin is MFI=2.5-25.0 g/10 minutes. Processing and relevant aid concentrate contains at least one biodegradable additive, thermostabilisers, antioxidants, lubricants, antistatic aids, pigments, fillers etc. The granular polymer blend is produced within a number of stages to ensure uniform distribution of all the aids in polyolefin. Four powder material flows are used. Three aid compositions are mixed with three parts of parent powder polyolefin in ratio 1:4, 1:3 and 1:2 respectively. Prepared concentrate mother stocks are supplied to the fourth combined mixer with residual part of polyolefin. If required, necessary liquid biodegradable additive. The blend is stirred and homogenised at 150-250°C.
Method of obtaining porous polymer biodegradable products for osteanagenesis / 2327709
Effect is achieved by using compositions based on different stereoregular amorphous biodegradable polymers - polylactides and copolymers of lactides with glycolides (18-72 mass ratio) as the second component of biocompatible mineral filler - hydroxyapatite with particle size of the main fraction of 1-12 mcm (8-41 mass ratio), as well as an organic solvent with boiling temperature equal to or higher than softening temperature by 3-20°C (20-41 mass ratio). After preparation of a homogenous mixture, the composition is undergoes thermal treatment at 80-130°C in a vacuum in a shaping vessel with the required shape. A porous product is obtained due to removal of solvent. Density of the obtained porous product is about 0.4-0.8 g/cm3.
Cream for skin after sunbathing / 2395273
Invention relates to cosmetic industry, namely to creation of cream for skin after sunbathing, which contains sunflower oil, perfume oil PEG-400, glycerol, minoglycerides, methyparaben and ethylparaben, in ratio 1:1, ethanol, DEG stearate, mixture of water-alcohol and CO2-extracts of Echinacea in ratio 3:1, essential oil of peppermint, fragrance, distilled water.
 Cosmetic compositions / 2395272
Invention relates to cosmetic preparations and deals with method of maintaining healthy skin and healthy skin outlook in people by reduction of skin spots and defects, reduction of skin scarring, maintenance of skin texture, purification of contaminated and inflamed pores, and their combinations, including local application on patient who needs such treatment of safe and efficient amount of compound, selected from cyclohexanol, 2-cyclohexyl ethanol, cyclohexyl methanol, 3-cyclohexyl-1-propanole, 1,4-cyclohexanediol, 1,3-cyclohexanediol, 1,2-cyclohexanediol, 4-cyclohexyl cyclohexanol, 4-methyl cyclohexanol, 1,2,3-cyclohexanetriol, 1,3,5-cyclohexanetriol and 1,4,5-cyclohexanetriol, and mixtures of said substances. Also described is cosmetic composition.
 Compositions for oral cavity care, containing zinc and phytate / 2395271
Invention relates to compositions for oral cavity care. Described are compositions, which include: (a) from approximately 0.01 to approximately 10 wt % of in fact water-insoluble zinc compound, (b) from approximately 0.01% to approximately 10 wt % of water-soluble polyphosphorilated inosite compound, selected from phytic acid, myoinosite pentakis(dihydrophosphate); myoinosite tetrakis(dihydrophosphate); myoinosite trikis(dihydrophosphate) and their salts of alkali metals, alkali earth metals or ammonium and their mixtures; and orally acceptable carrier.
 Lyophilised product for make-up, corresponding compositions and method of manufacturing / 2395270
Invention relates to cosmetology and represents basic composition for make-up possessing ability of lyophilise with formation of make-up product, which contains: emulsion, consisting of fat and water phases; mainly insoluble fillers; dispersing agents in amount sufficient to ensure dispersing of fillers in emulsion and formation after lyophilisation of a net of cavities able to catch fillers, said composition containing fillers in amount, greater than or equal 50 wt %.
Lyophilised product for make-up, corresponding compositions and method of manufacturing / 2395270
Invention relates to cosmetology and represents basic composition for make-up possessing ability of lyophilise with formation of make-up product, which contains: emulsion, consisting of fat and water phases; mainly insoluble fillers; dispersing agents in amount sufficient to ensure dispersing of fillers in emulsion and formation after lyophilisation of a net of cavities able to catch fillers, said composition containing fillers in amount, greater than or equal 50 wt %.
Lyophilised product for make-up, corresponding compositions and method of manufacturing / 2395270
Invention relates to cosmetology and represents basic composition for make-up possessing ability of lyophilise with formation of make-up product, which contains: emulsion, consisting of fat and water phases; mainly insoluble fillers; dispersing agents in amount sufficient to ensure dispersing of fillers in emulsion and formation after lyophilisation of a net of cavities able to catch fillers, said composition containing fillers in amount, greater than or equal 50 wt %.
Lyophilised product for make-up, corresponding compositions and method of manufacturing / 2395270
Invention relates to cosmetology and represents basic composition for make-up possessing ability of lyophilise with formation of make-up product, which contains: emulsion, consisting of fat and water phases; mainly insoluble fillers; dispersing agents in amount sufficient to ensure dispersing of fillers in emulsion and formation after lyophilisation of a net of cavities able to catch fillers, said composition containing fillers in amount, greater than or equal 50 wt %.
 Compositions and methods for changing tooth colour / 2395269
Invention relates to tooth-covering composition, intended for changing tooth colour. Composition includes dye, containing crystalline hydroxyapatite, acrylate polymer, and one or more non-acrylate polymers selected from the group, which consists of carboxymethyl cellulose acetate butyrate, cellulose acetate butyrate, and their mixtures. Acrylate polymer contains tretbutylate, ethyl acrylate and methacrylic acid. Composition is obtained by mixing components.
 Compositions for head hair and/or skin care containing derivatives of terpenoids / 2394568
Invention relates to field of cosmetology, more specifically to application of derivative of terpenoids of formula
Humic concentrate, containing humic acids, method of obtaining it and composition for head hair and skin care / 2394556
Invention relates to field of cosmetology, more specifically to composition for head hair and skin care based on humic concentrate which represents product of peat processing with sodium or potassium hydroxide solution with activation with air oxygen in process of barbotage and further neutralisation with citric or acetic acid solution, which contains absolutely dry substance, wt %: humic acids not less than 2.8, lipid fraction 2.7-2.9, ash components not less than 0.09%, - with pH 5.5-6.5.
 Absorbing product and method of absorbing product manufacturing / 2395263
Invention relates to medicine, namely to absorbing product, which contains liquid-permeable upper layer, preferably liquid-impermeable lower layer and absorbing core, located between upper layer and lower layer. During manufacturing upper layer is connected with underlying receiving material by means of ultrasonic processing, laminate, formed by upper layer and receiving material, when upper layer and receiving material are joined together, includes strengthening element (rigidity element), made by means of ultrasonic processing in fact along its peripheral edge.
 Absorbing product containing layer of liquid transference / 2394544
Absorbing product contains layer of liquid transference, located between liquid-permeable from body side pad and absorbing core. Pad contains multiple perforations. Pad and layer are connected on multiple joining units covering the area between 0.5% and 11% of total pad area, which is limited by said joining units and in which each joining unit has area not more than 13 mm2. Combined perforated pad and transference layer ensure fast input of liquid and low repeated moisturising with respect to user. Par has three-dimensional structure of alternating raised and lowered regions, perforations being present at the bottom of said pad lower places.
 Absorbing product for women / 2394543
Invention relates to medical equipment, namely to absorbing products for women, such as hygienic pads, intended for everyday use pads for knickers or protecting device used in case of incontinence. Absorbing product contains liquid-permeable upper sheet and liquid-impermeable lower sheet, two longitudinal lateral edges, one transversal anterior edge, one transversal posterior edge, front part, back part, perineum part, located between back part and front part. Intermediate part is divided into front section and back section with central line and is from 7 to 12 cm long. Absorbing product also contains at least one first element detaining microorganisms or first section, which has anterior border, posterior border and two lateral borders, first element or first section being located in such way that it will be located in user's perineum when used. First element is located on upper sheet or first section is included into upper sheet, and is located in such way that anterior border of first element or first section is on posterior section of perineum region. Product detaining microorganisms with distance between transversal posterior edge and transversal anterior edge from 2 to 6 cm, and distance between longitudinal lateral edges from 3 to 5 cm can be attached to user with location in perineum. In one of the versions of implementation absorbing product forms set for prevention or reduction of microorganism migration from anal orifice zone to genitourinary zone. Set in accordance with the second version of implementation includes application of composition for prevention or reduction of microorganism migration onto absorbing product onto mark on upper sheet by means of cotton bud, brush or peg.
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FIELD: chemistry. SUBSTANCE: invention relates to a method of preparing compositions which are subject to biodecomposition based on methylcellulose, which can be used for cosmetic and medical purposes. The composition contains methylcelluose, a reagent for modifying rheological characteristics, a hygroscopic reagent and an antibacterial agent. The reagent for modifying rheological characteristics is selected from gelatine or casein. The hygroscopic reagent is selected from glycerine or polyethylene glycol. The antibacterial agent is silver nitrate. The composition also contains a plasticiser. The composition is prepared by mixing a colloidal gel of methylcellulose with the reagent for modifying rheological characteristics, the hygroscopic reagent and the antibacterial agent. EFFECT: obtaining a composition for use as a cosmetic mask for skin or medical bandages and in production of packaging materials. 2 cl, 2 ex
The invention relates to a method for producing compositions that undergo biodegradation, based on a simple cellulose ether is methylcellulose and is intended for use in cosmetic or medical purposes as beauty masks for skin or bandage and in the manufacture of packaging materials. A method of obtaining biodegradable molded articles and method of production thereof (patent RU 2066332, 1996.09.10), consisting of a starch, a polymer compatible with starch, in particular a copolymer of ethylene with acrylic acid and/or a copolymer of ethylene with vinyl alcohol and expanding agent. The disadvantage is the use of some expensive components. A method of obtaining biodegradable compositions comprising starch and esters of polysaccharides (patent RU 2001108583, 2003.02.10). The disadvantage is the technical complexity of the complete method. A method of obtaining biodegradable film, permeable to air and water vapor, and the retrieval method (patent RU 2256673, 2005.07.20). However, this method has a narrow range of application and can be used in the manufacture of articles such as baby diapers, feminine hygiene products, hospital sheets. Closest to the proposed to the technical essence and the achieved positive is to function effectively are compositions and methods of manufacturing products with a porous matrix with a starch binder (patent RU 97103998, 1999.05.20). The disadvantage of starch-containing products is their increased ability to absorb moisture, so that they can be unsuitable for the manufacture of films. A large part developed to date, polymers with adjustable life, except the harmless, contains special additives that provide the photodestruction, which are usually toxic and can contaminate the environment when recycled material, and during its operation and utilization. The purpose of the invention is providing a method to obtain compositions in the form of a mixture of carbohydrates and proteins of natural origin, subject to biodegradation. The biodegradation is a set of reactions alteration or destruction of significant elements of the building structure as a result of activity of microorganisms: bacteria, mold, fungus, or algae. The above-mentioned processes of destruction lead to lower molecular weight polymer. Razrabotannye compositions containing high molecular basis of organic nature (cellulose derivatives, gelatin, casein), which is a nutrient medium for microorganisms. For this purpose, the proposed method when forming compositions that undergo biodegradation, was used methylcellulose with contents methoxyl the groups from 26%to 33%. With increasing degree of methylation hygroscopicity methylcellulose increases. This is due to the fact that the macromolecules of cellulose takes place vzaimoponimanie most of hydroxyl groups with the formation of hydrogen bonds. When reaching a higher degree of substitution in the field of 26-33% content metaxylene groups methylcellulose is dissolved in water. With further increase metaxylene groups of up to 38% and higher, it loses its solubility. A method of producing compositions that undergo biodegradation, is as follows. Get a 3-5% solution of methylcellulose. To do this, methylcellulose bring the water to a temperature of 50÷60°C. the Mixture was kept for 1.5÷2 hours. Temperature due to the following restrictions. At temperatures below 50°C and above 60°C. the gelation process is slowed down. To avoid formation of air bubbles in a 5% solution of methylcellulose you keeping the resulting solution at a temperature of 8÷10°C for 12-15 hours. In the resulting colloidal gel methylcellulose injected reagent for the modification of rheological characteristics, absorbent material for retaining moisture within the composition, the plasticizer, giving the product flexibility, antibacterial agent and mix until smooth. As a reagent for the modification of neolog the economic characteristics use animal protein - gelatin or casein at a concentration of from 3 to 8% by weight of the total components of the composition. As the absorbent material for retaining moisture within the composition used l2or Ca(NO3)2at a concentration factor of 0.5 to 2% by weight of the total components of the composition. As the plasticizer, giving the product flexibility, use glycerin or polyethylene glycol in a concentration from 0.5 to 1% by weight of the total components of the composition. As an antibacterial agent, nitric acid silver in a concentration of from 0.05 to 0.1% by weight of the total components of the composition. The resulting composition is applied on a smooth glass surface of the desired shape with a thickness of 1 to 3 mm and left in air at a temperature of 20÷22°C for 2-3 days to dry completely. The ability of the film to biodegradation (the kinetics of biodegradation was estimated by weight loss at a given cellulase and proteoliticheskoi activities of microorganisms isolated from the soil environment and planted into fragments biodegradable film m=0.5 to 0.6 g, placed in Petri dishes and inkubirovanie over the water in a thermostat at 35°C for 14 days. The ability of the biopolymer to the degradation was investigated in the presence of bacteria of the genus Bacillus: .radiobacter; .megaterium; .subrugosum; .necrosis; .mycoides; these bacteria to antibiotics albus; Microc. citreus granulatus; B.mycoides roseus; B.casei (Aametz), isolated from soil suspension. The most significant contribution to the process of biodegradation of the films deposited microorganisms .necrosis, Microc. citreus granulatus, these bacteria to antibiotics albus. This method of producing compositions that are biodegradable, illustrated by concrete examples. Example 1. In a container equipped with a mixer, bring the water to a temperature of 50÷60°C and methylcellulose in an amount necessary to obtain a 5% solution of methylcellulose. The mixture was incubated for 1.5÷2 hours. In the resulting gel 5% solution of methylcellulose in water volume of 100 ml add 25 ml of 3% solution of casein and stirred for 5 minutes. In the resulting gel mixture is injected 50 ml of 5% solution of CaCl2and 1.5 g of glycerol. The resulting mixture was stirred for 5 minutes. The last step is introduced 0.1 g of nitric acid silver. The mixture was thoroughly stirred and poured into a Petri dish filled with the layer thickness of the obtained compositions of 2-3 mm and left in air at a temperature of 20÷22°C for 3 days to dry completely. Get film round shape, easily separated from the glass surface. Example 2. In a container equipped with a mixer, bring the water to a temperature of 50÷60°C and methylcellulose, in the quantity necessary to obtain a 3% solution of methylcellulose. The mixture was incubated for 1.5÷2 hours. In the resulting gel 3% solution of methylcellulose in water volume of 100 ml add 50 ml of 4% solution of gelatin and premesis the ut for 5 minutes. In the resulting gel mixture is injected 40 ml of 5% CA(NO3)2and 2 g of polyethylene glycol. The resulting mixture was stirred for 5 minutes. The last step is entered 0.15 g of nitric acid silver. The mixture was thoroughly mixed and the resulting composition is placed on a glass plate with dimensions of 10×10 cm of the desired shape with the thickness of the obtained compositions of 2-3 mm and left in air at a temperature of 20÷22°C for 2 days to dry completely. Get tapes of different forms depending on given during drying, the film is easily separated from the glass surface. 1. The composition is based on a simple cellulose ether for use in cosmetic and medical purposes as beauty masks for skin or bandage and in the manufacture of packaging materials containing methylcellulose in the form of a colloidal gel obtained by curing 3-5% aqueous solution of methyl cellulose at a temperature of from 50 to 60°C for 1.5-2 h, the reagent for the modification of rheological characteristics in number from 3 to 8% by weight of the total composition selected from gelatin or casein, hygroscopic reagent in an amount of from 0.5 to 2% by weight of the composition, selected from CaCl2or CA(NO3)2, plasticizer, giving the product a flexibility selected from glycerol or polyethylene glycol, and nitric acid silver, and which tibacterial agent, using methylcellulose content metaxylene groups from 26%to 33%. 2. A method of obtaining a composition according to claim 1, namely, that in a colloidal gel methylcellulose injected reagent for the modification of rheological characteristics, hygroscopic material, antibacterial reagent and mix until smooth, characterized in that use methylcellulose brand MC-100 content metaxylene groups 28%. 3. The composition according to claim 1, characterized in that the plasticizer, giving the product the flexibility that is included in a concentration of from 0.5 to 1% by weight of the composition. 4. The composition according to claim 1, characterized in that krmpoziciya includes an antibacterial agent in a concentration from 0.05 to 0.1% by weight of the total components of the composition.
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