52results about How to "Improved viscosity properties" patented technology

PCT No. PCT/RU96/00249 Sec. 371 Date Aug. 31, 1998 Sec. 102(e) Date Aug. 31, 1998 PCT Filed Sep. 2, 1996 PCT Pub. No. WO98/09676 PCT Pub. Date Mar. 12, 1998The present invention relates to equipment for producing a hypoxia gas mixture and for use during hypoxia training at regular intervals. The present invention may be used in the field of practical medicine during a therapy involving gas mixtures with a low oxygen content. This invention essentially relates to an apparatus for producing a gas mixture for hypoxia training at regular intervals, wherein said apparatus comprises the following elements serially connected: a compressor; a gas-distribution member made of hollow polymeric fibers of poly-4-methylpentens-1; a duct with a flow-meter; a moisturising unit; a patient mask with a breathing valve; a system for automatically controlling the operation mode parameters, wherein said system comprises a patient-condition monitoring device with an oxygen indicator and a spirometer; and a drying unit mounted before the gas-distribution member. This drying unit is made in the shape of two truncated cones which are connected together at their larger bases on a single support rod, wherein said rod comprises in its central part a disc having a diameter 4 to 6 times larger than that of said rod. Hollow fibers made of mixtures of poly-4-methylpentens-1 with different melt index are wound on the last cone.

Disclosed are methods of treating subterranean formations, particularly, treatment methods including preparation of an aqueous treatment fluid composition composed of a carboxy modified polymer, a crosslinking agent, and a viscosifying quaternary amine salt, and subsequently introducing the composition into a the formation to treat. The treatment method is particularly useful for fracturing a subterranean formation. The polymer and crosslinker may be premixed and injected into a wellbore, then mixed therein with the quaternary amine salt to treat the formation. In another aspect, the polymer, crosslinker, and quaternary amine salt are mixed, injected into a wellbore, and introduced in the formation for treatment.

The invention provides a black garlic crisp chip and a preparation method of the black garlic crisp chip. The method comprises the steps of preparing main raw materials including black garlic, black rice flour, L-arabinose and compound oil and carrying mixing, shaping and microwave puffing. The black garlic crisp chip is made from the following raw materials in percentage by weight: 5-10% of black garlic, 70-85% of black rice flour, 8-15% of L-arabinose and 1-2% of compound oil. The black garlic crisp chip provided by the invention is a leisure food which has nutrition and healthcare functions and is tasty, fragrant and crisp and low-fat, can be produced into the products with different flavors according to different taste requirements of consumers, and specially can meet the requirements of weak and tired people for fast energy and nutrition replenishing; and the market prospect of the product is good.

The production of a diutan polysaccharide exhibiting increased viscosity properties as compared with previously produced polysaccharide of the same type of repeating units. Such an improved diutan polysaccharide is produced through the generation of a derivative of Sphingomonas sp. ATCC 53159 that harbors a multicopy broad-host-range plasmid into which genes for biosynthesis of diutan polysaccharide have been cloned. The plasmid provides the capability within the host Sphingomonas strain to produce multiple copies of genes for such polysaccharide synthesis. In such a manner, a method of not just increased production of the target diutan polysaccharide, but also production of a diutan polysaccharide of improved physical properties (of the aforementioned higher viscosity) thereof is provided. Such a diutan polysaccharide has proven particularly useful as a possible viscosifier in oilfield applications and within cement materials. The inventive methods of production of such an improved diutan polysaccharide, as well as the novel cloned genes required to produce the improved diutan within such a method, are also encompassed within this invention. Additionally, the novel engineered Sphingomonas strain including the needed DNA sequence is encompassed within this invention.

A fluid composition suitable for use as an aircraft hydraulic fluid is disclosed. The fluid composition comprises a fire resistant phosphate ester base stock comprising between about 10% and about 100% by weight of a trialkyl phosphate, between about 0% and about 70% by weight of a dialkyl aryl phosphate, and from about 0% to about 25% by weight of an alkyl diaryl phosphate, with the proviso that the sum of the proportionate amount of each base stock component must equal 100%. The alkyl substituents of the trialkyl phosphate, the dialkyl aryl phosphate, and the alkyl diaryl phosphate contain between 3 and 8 carbon atoms, preferably between 4 and 8 carbon atoms, more preferably between 4 and 5 carbon atoms, and are bonded to the phosphate moiety via a primary carbon. It is still further preferred that the alkyl substituents of the trialkyl phosphate, the dialkyl aryl phosphate, and the alkyl diaryl phosphate are isoalkyl groups. The fluid composition further comprises an acid scavenger, an anti-erosion additive, a viscosity index improver, and an antioxidant. A novel additive combination comprises a high molecular weight butyl/hexyl methacrylate viscos ity index improver, a perfluoroalkylsulfonate anti-erosion additive, a 3,4-epoxycyclohexanecarboxylate or a diepoxide acid scavenger, a di(alkylphenyl)amine, and a phenolic antioxidant comprising a mixture of a 2,4,6-trialkylphenol and a hindered polyphenol compound selected from the group consisting of bis(3,5-dialkyl-4-hydroxyaryl)methane, 1,3,5-trialkyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxyaryl)benzene and mixtures thereof. Preferably, the fluid composition further comprises a benzotriazole derivative as a copper corrosion inhibitor, and a 4,5-dihydroimidazole derivative, as an iron corrosion inhibitor and to enhance the stability of the fluid. <INS-S DATE="20010320" ID="INS-S-00001">The issued reissue patent is the reexamination certificate. <INS-E ID="INS-S-00001">

Liquid rubbers that are ordinarily immiscible in liquid thermoset resins can be made miscible by the addition of at least one non-functional aromatic end-group to the polymer chains of such liquid rubber compositions. Processes for preparing such new liquid rubber compositions and miscible rubber/resin blends are also provided. In addition, these new liquid rubber compositions can be controlled to phase separate into rubbery microdomains upon curing of thermoset resins, including unsaturated polyester thermoset resins. The resulting new composite materials are found to improve the fracture toughness of cured thermoset resins while maintaining dimensional and heat resistance.

Compositions incorporating water-curable urethane constituent(s) are formulated with favorable viscosity and viscosity stability characteristics, while at the same time, preserving desired hardness characteristics. The present invention is particularly useful in applications in which water-curable compositions include NCO-functional resins having relatively high NCO content and/or incorporate MDI-based constituents. Preferred modes of practicing the invention include implementing one or more formulation strategies to help retain hardness while preserving good viscosity characteristics. These preferred strategies involve (i) balancing scavenger, polyisocyanate and polyfunctional polyol content of the compositions or resins thereof, as the case may be, (ii) formulating an NCO-functional resin with chain extender constituent(s) to enhance viscosity stability, (iii) formulating with one or more plasticizers that enhance viscosity performance, and (iv) combinations of two or more of these strategies.

The invention discloses a sterilizing method for jam and fruit juice which are heated directly by steam and cooled by flash evaporation, which comprises the following steps of: 1) mixing jam or fruit juice raw materials and the steam, and heating quickly to the sterilizing temperature to obtain high-temperature materials; 2) keeping the temperature and sterilizing the materials obtained in the step 1); and 3) cooling the materials obtained in the step 2) quickly by a flash evaporation process. The invention also aims to provide a sterilizing device for the jam and the fruit juice, which comprises a steam injection heater, a maintaining tank and flash evaporation equipment which are connected sequentially, wherein the flash evaporation equipment comprises a flash evaporation cooler connected with the maintaining tank and a vacuum pump connected with the flash evaporation cooler. By the sterilizing method and the sterilizing device for the jam and the fruit juice which are heated directly by the steam and cooled by the flash evaporation, the pasteurization of the jam and the fruit juice can be realized, the concentration and viscosity of products can be improved, the color and luster of the products can be protected, so that the high-quality jam and fruit juice products are obtained, and the products can be widely used.

The invention discloses a preparation method of an epoxy anticorrosive coating. The preparation method comprises the following steps: (1) weighing the following components respectively in percentage by weight: 15-23% of deionized water, 30-40% of bisphenol A epoxy resin, 8-15% of phenolic amine, 5-10% of organic silicon, 5-10% of polyurethane, 10-18% of nitrile-butadiene rubber, 0.5-0.9% of a dispersant, 0.4-0.8% of a defoaming agent and 0.4-0.8% of a preservative, and dispersing and stirring to obtain a mixture; (2) weighing 10-17% of flaky highly-wear-resistant color filler and 0.2-0.5% of a leveling agent to be added into the mixture, and dispersing for 10-15 minutes in a dispersion tank at a rotation speed of 1000-1500r/min. By adopting the preparation method disclosed by the invention, the epoxy anticorrosive coating with good anticorrosive performance, good impact resistance, good toughness and good high-temperature resistance can be prepared, and the process is simple.

A synthetic lubricating oil composition for internal combustion engines, comprises an organomolybdenum compound, a zinc dithiophosphate and a base stock obtained by blending an ester having a kinematic viscosity of from 8 cSt to 35 cSt at 100° C. and a saponification value of 200 mg-KOH/g or smaller with a poly (alpha-olefin) and/or a highly-refined mineral oil.

The present invention relates to a polyvinyl chloride-based resin latex, and a preparation method therefor. A polyvinyl chloride-based paste resin of the present invention has improved foam properties and moisture resistance and increased static viscosity. Therefore, the paste resin of the present invention can be widely used in foam products requiring high foam properties.

The invention belongs to microbial fermentation, and particularly relates to rhizobium pumilum and an application of the rhizobium pumilum in preparation of water-soluble beta-1,3 glucan. A method comprises the following process steps: inoculating rhizobium pumilum with the preservation number of CGMCC No.19764 into a sterilized culture solution containing a carbon source, a nitrogen source and other necessary nutrient substances, ventilating, stirring and fermenting at the temperature of 28-32 DEG C, and finishing the fermentation when the fermentation period does not exceed 70 hours to prepare fermentation liquor containing beta-1, 3 glucan. The method solves the problems of tedious process, low product yield and the like in the prior art, and the product has the advantages of high yield, high product viscosity, good water solubility, low fermentation cost and the like.

The invention relates to neodymium-doped fluorophosphate laser glass and a preparation method thereof. The glass mainly comprises low-content phosphate and high-content divalent and trivalent metal fluoride. The positive ions of the glass include, by mole percentage, 12.0-12.1% of P<5+>, 28.2-28.6% of Al<3+>, 7.7-7.8% of Mg<2+>, 18.8-19.1% of Ca<2+>, 18.8-19.1% of Sr<2+>, 9.4-9.5% of Ba<2+>, 3.4-3.5% of Y<3+>, 0.2-1.6% of Nd<3+> and 82.49-82.59% of F<->/(F<->+O<2->). Compared with existing neodymium-doped fluorophosphate laser glass, the neodymium-doped fluorophosphate glass is excellent in glass forming performance, long in fluorescence lifetime, low in nonlinear coefficient, free of alkali and applicable to solid-state laser amplification.

A food or pharmaceutical composition including a liquid composition comprising the liquid fermentation broth product of a biologically active substance, in a carbohydrate medium other than dairy whey wherein said liquid fermentation broth product has not been subject to any drying steps prior to introduction of the broth product into said food or pharmaceutical composition is provided.

The invention discloses an epoxy anticorrosive antibacterial paint which is composed of 30-40% of bisphenol A epoxy resin, 8-15% of phenol formaldehyde amine, 5-10% of antimicrobial modified resin and nano silicon solution in a weight ratio of 30:1, 5-10% of polyurethane, 10-18% of butadiene-acrylonitrile rubber, 10-17% of flaky high-wear-resistance pigment and filler, 0.5-0.9% of dispersing agent, 0.4-0.8% of defoaming agent, 0.4-0.8% of preservative, 0.2-0.5% of leveling agent and 15-23% of deionized water. The epoxy anticorrosive antibacterial paint has the advantages of favorable corrosion resistance, favorable impact resistance, favorable toughness and favorable mold resistance.

The invention relates to the technical field of LEDs, in particular to an LED lamp molding printing process. The LED lamp comprises an LED base, the LED base is provided with a plurality of cavities,and each cavity is fixed with an LED chip. The printing process comprises the following steps of: (1) designing a tape film, wherein the tape film is provided with a plurality of through holes, one surface of the tape film is coated with an adhesive layer, the adhesive is applied to the base to allow the through holes to face the cavities of the LED base; (2) injecting fluorescent glue into the cavities; (3) performing blade coating at the surface of the tape film by employing a scraper; and (4) stripping off the tape film. The tape film is attached to the LED base to prevent the fluorescent glue from pasting to the base; the scraper is employed to scrape the overflowing fluorescent glue on the tape film into the cavities of the LED base to facilitate even glue amount of the cavities so asto display an even luminance effect.

The invention discloses a color-variable art paint and a preparation method thereof, belonging to the technical field of water-based paints. The color-variable art paint comprises the following components in parts by mass: 20-30 parts of deionized water, 0.1-1 part of a thickener, 0.1-2.5 parts of a pH value regulator, 0.1-1 part of a dispersant, 1-3 parts of an antifoaming agent, 0.1-0.5 part ofa wetting agent, 0.1-0.5 part of a bactericide, 0.1-0.5 part of a mold inhibitor, 0.1-0.5 part of an antifreezing agent, 0.5-1.5 parts of a film forming aid, 30-40 parts of an acrylic emulsion, 5-15 parts of a photosensitive color-variable material and 25-30 parts of glass beads. The color-variable art paint overcomes the shortcoming of inclusion of volatile solvents in conventional color-variablepaints, and has a solid content of 100%. At the same time, the paint does not emit organic solvents and chemical emulsifiers, can change color with light, presents different colors with light, and achieves the purpose of beautifying the environment.

The present invention relates to organic chemistry, in particular, to synthesis of sulfoderivatives of the polycyclic compounds and fabrication of optically anisotropic coatings on their base.

The indanthrone sulfoderivatives of the general structural formulas I or II capable of forming LLC phase are disclosed. The disclosed compounds could be used, in particular, for producing optically isotropic or anisotropic and at least partially crystalline films. The application also includes the liquid crystal systems based on the disclosed compounds, and anisotropic films.

wherein n is 3 or 4,

• • R═CH₃, C₂H₅, OCH₃, OC₂H₅, Cl, Br, OH, NH₂, z is the value selected from the list including 0, 1, 2, 3, and 4, M—counterion, and j—number of counterions in a dye molecule, and which can be fractional in case of one counterion belonging to several molecules, and in case n>1, counterions may be different.