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225 results about "Ozone layer" patented technology

The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentration of ozone (O₃) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9.3 to 21.7 mi) above Earth, although its thickness varies seasonally and geographically.

Environment-friendly flame-retardant polyurethane wood-imitation material

The invention belongs to the field of chemical synthesis, and in particular relates to an environment-friendly flame-retardant polyurethane wood-imitation material, which is characterized by comprising a component A and a component B, wherein the component A consists of polyether polyalcohol, a foam stabilizer, a catalyst, a foaming agent and a flame retardant; and the component B is polymethylene polyphenyl polyisocyanate. A method for preparing the environment-friendly flame-retardant polyurethane wood-imitation material comprises the following steps of: mixing and stirring the component A and the component B, injecting the components into a constant-temperature die at the temperature of between 40 and 50 DEG C, reacting and curing for 10 to 13 minutes to obtain the environment-friendly flame-retardant polyurethane wood-imitation material. The invention has the advantages that due to the adoption of the reaction type catalyst, the generation of volatile gas is prevented, and the harm to the health of human bodies is reduced greatly; water is used as the single foaming agent instead of the conventional hydrochlorofluorocarbon (HCFC)-141B foaming agent, so that the consumption of an ozone layer is reduced effectively; and demolding can be performed after 10 to 13 minutes during production, so that the production efficiency is improved greatly.
Owner:SHANGHAI DONGDA POLYURETHANE

Antistatic environment-friendly communication equipment electrified cleaning agent

The invention relates to the field of the communication equipment electrified cleaning agent, in particular to an antistatic environment-friendly communication equipment electrified cleaning agent. The electrified cleaning agent is prepared by mixing the following components by weight: 50-65 parts of dipropylene glycol, 10-20 parts of hexamethylsiloxane or prestoxmethylsiloxane, 2-10 parts of methylsilicone oil, 10-20 parts of SMD-40 solvent oil and 0.01-1 part of an antistatic agent. The communication equipment electrified cleaning agent disclosed by the invention takes the dipropylene glycol as main raw material, other chemical reagents with strong cleaning capability are reasonably cooperated with the main raw material, so that the antistatic environment-friendly communication equipment electrified cleaning agent has good cleaning effect on pollutants on the surface of communication equipment, has the advantages of strong compatibility, no corrosion on materials, such as plastics, paints, metals and the like, high network voltage and volume resistivity, and the function of the communication equipment is free from influence. The antistatic agent used in the antistatic environmental-friendly communication equipment electrified cleaning agent is characterized in that one layer of antistatic membrane is formed on the surface of cleaned equipment to effectively enhance the anti-fouling capability of the equipment. The antistatic environment-friendly communication equipment electrified cleaning agent does not contain substance capable of damaging the ozone layer, is free from halogen and does not have bad influence on the environment.
Owner:安徽朗清科技发展有限公司

Method for breeding penaeus vannamei boone by using ozone water

InactiveCN103843707AImprove the body's immunityReduce the likelihood of disease outbreaksAntibacterial agentsClimate change adaptationDiseaseOzone layer
The invention relates to a method for breeding penaeus vannamei boone by using ozone water. Water inside a breeding pond is introduced from a natural sea area; after being subjected to sedimentation in the pond, dark sedimentation, treatment by a sand filtering tank and treatment by an ozone machine, the water is introduced into the breeding pond; during the period of breeding, the content of ozone in the water inside the breeding pond is regularly detected so as to be maintained 0.2-0.5ml / L. According to the method, the body immunity of the penaeus vannamei boone can be improved, and the possibility of disease outbreak to the penaeus vannamei boone is decreased; the growth speed of the penaeus vannamei boone is guaranteed, so that the economic benefits of farmers are protected; ozone is used as a sterilizing and harm-elimination substance safely, reliably and efficiently; oxygen atoms with a strong oxidizing performance, decomposed from the ozone, can reach a disinfecting purpose; moreover, the other product, i.e. oxygen, decomposed from the ozone, not only is safe without causing pollution to the water, but also can increase the concentration of dissolved oxygen in the water, thus being beneficial to growing and surviving the penaeus vannamei boone.
Owner:ZHEJIANG MARINE DEV RES INST
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