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7401 results about "Environmental resistance" patented technology

Environmental resistance. noun. : the sum of the environmental factors (such as drought, mineral deficiencies, and competition) that tend to restrict the biotic potential of an organism or kind of organism and impose a limit on numerical increase.

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

Thermoset polymer particles are used in many applications requiring lightweight particles possessing high stiffness, strength, temperature resistance, and/or resistance to aggressive environments. The present invention relates to the use of two different methods, either each by itself or in combination, to enhance the stiffness, strength, maximum possible use temperature, and environmental resistance of such particles. One method is the application of post-polymerization process steps (and especially heat treatment) to advance the curing reaction and to thus obtain a more densely crosslinked polymer network. In general, its main benefits are the enhancement of the maximum possible use temperature and the environmental resistance. The other method is the incorporation of nanofillers, resulting in a heterogeneous “nanocomposite” morphology. In general, its main benefits are increased stiffness and strength. Nanofiller incorporation and post-polymerization heat treatment can also be combined to obtain the benefits of both methods simultaneously. The present invention relates to the development of thermoset nanocomposite particles. It also relates to the optional further improvement of the heat resistance and environmental resistance of said particles via post-polymerization heat treatment. Furthermore, it also relates to processes for the manufacture of said particles. Finally, it also relates to the use of said particles in the construction, drilling, completion and/or fracture stimulation of oil and natural gas wells; for example, as a proppant partial monolayer, a proppant pack, an integral component of a gravel pack completion, a ball bearing, a solid lubricant, a drilling mud constituent, and/or a cement additive.
Owner:SUN DRILLING PRODS

Thermoset particles with enhanced crosslinking, processing for their production, and their use in oil and natural gas driliing applications

InactiveUS20070021309A1Increase compressive elastic modulusReduced deformabilitySynthetic resin layered productsCellulosic plastic layered productsEnvironmental resistancePetroleum
Thermoset polymer particles are used in many applications requiring lightweight particles possessing high stiffness, strength, temperature resistance, and/or resistance to aggressive environments. The present invention relates to the use of methods to enhance the stiffness, strength, maximum possible use temperature, and environmental resistance of such particles. One method of particular interest is the application of post-polymerization process step(s) (and especially heat treatment) to advance the curing reaction and to thus obtain a more densely crosslinked polymer network. The most common benefits of said heat treatment are the enhancement of the maximum possible use temperature and the environmental resistance. The present invention also relates to the development of thermoset polymer particles. It also relates to the further improvement of the key properties (in particular, heat resistance and environmental resistance) of said particles via post-polymerization heat treatment. Furthermore, it also relates to processes for the manufacture of said particles. Finally, it also relates to the use of said particles in the construction, drilling, completion and/or fracture stimulation of oil and natural gas wells; for example, as a proppant partial monolayer, a proppant pack, an integral component of a gravel pack completion, a ball bearing, a solid lubricant, a drilling mud constituent, and/or a cement additive.
Owner:SUN DRILLING PRODS

Ammonia process flue gas treatment method for acidic tail gas and device

ActiveCN103223292AIncreased self-concentrationGood desulfurization absorptionDispersed particle separationAmmonium sulfatesEnvironmental resistanceAmmonia storage
The invention relates to an ammonia process flue gas treatment method for acidic tail gas. The method includes the steps of: 1) controlling the sulfur dioxide concentration of tail gas entering an absorption tower at a level of less than or equal to 30000mg/Nm<3>; 2) arranging process water in an absorption tower entrance flue or in the absorption tower or cooperating with a ammonium sulphate solution to perform spray cooling; 3) disposing an oxidation section in the absorption tower, setting an oxidation distributor at the oxidation section to achieve oxidation of a desulfurized absorption liquid; 4) arranging an absorption section in the absorption tower, utilizing an absorption liquid distributor in the absorption section to realize desulfurization spray absorption by an ammonia-containing absorption liquid, which is fed through an ammonia storage groove; 5) arranging a water washing layer at an absorption section upper part in the absorption tower, washing the absorption liquid in the tail gas by the water washing layer and reducing the absorption liquid escape; and 6) setting a demister at the upper part of the water washing layer in the absorption tower to control the mist drop content in the purified tail gas. Employment of the Claus sulfur recovery and ammonia process desulfurization integrated desulfurization technology in the coal chemical industry can reduce the investment cost of after-treatment, the process can be simpler, and factory environmental protection treatment can form an intensive advantage.
Owner:JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION

Nontoxic, odorless and recoverable environmentally-friendly polyurethane foaming material and preparation method thereof

ActiveCN102229709ANo chemical reactions involvedHuge energy savingCoatingsEnvironmental resistanceHuman health
The invention discloses a nontoxic, odorless and recoverable environmentally-friendly polyurethane foaming material and a preparation method thereof. The foaming material is characterized in that a raw material of polyurethane is adopted and is directly subjected to a physical gas foaming in the presence of a physical gas foaming agent to prepare the foaming material. The foaming material has a foaming density of 0.08-0.80 g/cm<3>, a foaming ratio of 1.5-15 times, a average pore diameter of 10-100 [mu]m, uniform distribution of cells, wherein diameter deviations of 95% of the cells do not exceed 10% of the average pore diameter. In addition, the foaming material has no surface structure and can be the foaming material with any shape. The foaming material has an adjustable softness and hardness and excellent performance, and can be widely applicable for the fields of packaging, human protector, shoe product, automobile inner garnish, amortization cushion, building energy conservation, acoustic insulating material and the like. According to the present invention, the following problems that: harmful gas is discharged during the production process of the polyurethane foaming material, and monomer residues are harmful to human health and cause environmental pollution, are thoroughly solved from the source, such that a practicable development approach is provided for green environmental protection, energy saving and emission reduction of the foaming material.
Owner:浙江博发新材料股份有限公司

Novel dyeing and finishing processing technology of micro polyester fabric

The invention relates to a novel dyeing and finishing processing technology of a micro polyester fabric. The novel dyeing and finishing process disclosed by the invention is characterized by comprising the following steps of: (1) pretreatment, namely carrying out cold rolling and stacking processing comprising three stages, namely cold stacking, hot alkali treatment and high efficiency washing, on polyester gray fabric; (2) presetting, namely carrying out high temperature tentering and presetting on a pretreated fabric white body by utilizing a setting machine; (3) dyeing, namely dyeing the preset fabric white body by adopting superfine fiber leveling agent; and (4) cleaning, namely carrying out cleaning post-processing on the dyed fabric to remove disperse dyes which are not set after fibres are dyed. According to the novel dyeing and finishing processing technology disclosed by the invention, an environment-friendly and low-energy-consumption cold rolling and stacking pretreatment technology is used for carrying out pretreatment on the micro polyester fabric, on one hand, desizing effect is good and good dyeing and finishing processing conditions are provided for dyeing, and on the other hand, crease mark of the fabric can be effectively reduced; meanwhile, a formula of a dyeing process additive can be adjusted, albafluid U is added to reduce fabric dyeing scratch, and dyeing defects can be prevented from being caused.
Owner:SHENGHONG GRP CO LTD

Novel environment-friendly coating with superhigh marine environment corrosion resistance and preparation method and application thereof

The invention discloses a novel environment-friendly coating with superhigh marine environment corrosion resistance and a preparation method and application thereof. The environment-friendly coating with superhigh marine corrosion resistance consists of the following components in part by weight: a main agent comprising 22 to 35 parts of low-viscosity solvent-free epoxy resin, 9 to 15 parts of activated thinner, 0.2 to 5 parts of aid, 5 to 8 parts of organic solvent, 0.5 to 15 parts of toner, 10 to 25 parts of first filler, 20 to 45 parts of second filler and 0.5 to 5 parts of thixotropic agent, and a curing agent comprising 60 to 90 parts of amine resin, 10 to 30 parts of activated thinner, 2 to 8 parts of aid and 2 to 10 parts of organic solvent. During use, the main agent and the curing agent are uniformly mixed, and the mixture is applied to the surface of a substrate. A film formed by the coating is high in corrosion resistance and low in content of volatile organic compounds (VOC), does not contain any toxic or harmful substance, can be universally used in a drinking water tank, and also can be used for a ship ballast tank, a ship bottom, a deck and each position of a marine platform.
Owner:CHINA PAINT MFG CO SHENZHEN

Super-wide environmental-friendly decorative film material and preparation technology thereof

The invention relates to a super-wide environmental-friendly decorative film material and a preparation technology thereof. The super-wide environmental-friendly decorative film material is prepared from high degree-of-polymerization PVC (Polyvinyl Chloride) resin powder, a environmental-friendly plasticizer, a stabilizer, a fire retardant, an internal lubricant and a mildew preventive serving as main raw materials by adopting working procedures such as material sieving, material blending, high-speed mixing, smelting, crude refining, refining, extrusion and filtrating, rolling, embossing, cooling and shaping, trimming, reeling and the like. The super-wide environmental-friendly decorative film material solves the problem that a general plastic decorative film has strong peculiar smell when coming into use, does not contain harmful substances such as phthalate, lead and cadmium, and is environmental-friendly, suitable for use in rooms and harmless to human bodies. Mountain and water streaks are prevented from occurring in the product so that the product has excellent appearance smoothness; due to addition of high-quality mildew preventive, the problem that the product goes moldy after being used for a long time is avoided; and in addition, the width of the product can reach 5 meters so that the product is suitable for use in specific occasions.
Owner:浙江明士达股份有限公司

Optimized analytical method and system for noise control in transformer station

ActiveCN102194027ALow costQuick and effective design referenceSpecial data processing applicationsEnvironmental resistanceNoise control
The invention discloses an optimized analytical method for noise control in a transformer station. The optimized analytical method comprises the following steps of: (1) collection of basic data; (2) establishment of a physical model; (3) calculation of the value of noise at a receiving point; (4) judgment of limit values; (5) optimization analysis; and (6) selection of an optimal scheme. By adopting the optimized analytical method, the geometric divergence of noise transmission and the influence of atmosphere, ground, buildings, green belts and the like on noise attenuation in transmission routes can be accurately taken into consideration, therefore the magnitude of noise at arbitrary point in a transformer station or the space surrounding the transformer station can be accurately predicted, a more quick and effective design reference is provided for noise control engineering in the transformer station, and the noise of the transformer station at the preliminary stage of design can becontrolled to the extent of minimum impact on the environment; at the same time, an optimal sound barrier design scheme for the noise control of the transformer station can be obtained, the noise control effect is improved, the environment-friendliness requirements are better satisfied, the construction cost is lowered, and the blindness during noise control is avoided. In addition, the inventionalso provides an optimized analytical system for noise control in the transformer station.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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