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65results about How to "Improve the feeling effect" patented technology

Ultra-low-viscosity energy-saving gasoline engine oil and preparation method thereof

The invention discloses ultra-low-viscosity energy-saving gasoline engine oil and a preparation method thereof. The ultra-low-viscosity energy-saving gasoline engine oil is composed of, by mass, 8.5-12.5% of a steam turbine oil complexing agent, 0.1-0.5% of antioxygen, 1-5% of viscosity index improver, 0-0.8% of an antiwear agent, 0.002-0.005% of an anti-foaming agent and the balance synthetic base oil. According to the base oil, alpha-olefin, esters and polyester oil are selected in cooperation with the special viscosity index improver, the mixture is combined and blended into ultra-low-viscosity totally-synthesized gasoline engine oil with the viscosity meeting the standard, characteristics of alpha-olefin type oil and ester type oil are utilized and reasonably matched, and the ultra-low-viscosity totally-synthesized gasoline engine oil which is excellent in performance is prepared; according to the ultra-low-viscosity energy-saving gasoline engine oil and the preparation method thereof, an anti-wear reinforcing agent is added to serve as oil soluble organic molybdenum and organic tungsten, the organic molybdenum and organic tungsten are used in a joint mode, engine oil plays good anti-wear and friction reduction functions in the whole stage of operation of an engine, the phenomena that the oil temperature is excessively high, and thus oil is oxidized and goes bad due to excessively high friction are effectively avoided.
Owner:北京雅士科莱恩石油化工有限公司

Taste-masked oral membrane containing nano lignin and preparation method thereof

The invention provides a taste-masked oral membrane containing nano lignin and a preparation method thereof. The taste-masked oral membrane contains nano cellulose, nano lignin, xylitol, polydopamine and pharmaceutical ingredients; the above materials are mixed and then subjected to strong mechanical stirring and strong ultrasonic treatment to be uniformly mixed, and the film-forming agent is obtained after bubble removal and drying. The nanocellulose is a film-forming main body material and a disintegration component; the nano lignin and the polydopamine have drug loading capacity; meanwhile, the nano lignin and the polydopamine both have a bonding function in the membrane structure, and instant dissolution or slow release of the membrane agent can be realized by regulating and controlling the dosage of the nano lignin and the polydopamine. Xylitol is used as a flavoring agent and has the function of preventing decayed teeth; the dissolving heat absorption makes the mouth cool and refreshing. The membrane agent is good in biodegradability, and the preparation method is simple and easy to implement. The membrane agent solves the problems of poor compliance of patients to bitter drugs and the like, and realizes high value-added application of the nano lignin derived from wood fibers in the field of oral membrane agents.
Owner:QINGDAO UNIV OF SCI & TECH +1

Transdermal patch containing rotigotine, and preparation method thereof

The invention discloses a transdermal patch composition containing rotigotine, and more specifically discloses a transdermal patch containing rotigotine, and a preparation method thereof. The transdermal patch composition contains effective doses of rotigotine and a self-adhesive matrix; the self-adhesive matrix comprises a polyisobutylene pressure-sensitive adhesive and a colloid softener. According to the preparation method, the polyisobutylene pressure-sensitive adhesive is adopted, the C-H skeleton of the polyisobutylene pressure-sensitive adhesive is long and straight, only the terminal groups contain unsaturated bonds, double bond content is low, and reaction sites are few, so that the transdermal patch containing rotigotine is extremely stable, is excellent in weatherability, heat resistance, and aging resistance, is low in cost; the materials are easily available; the operationality is high; the colloid softener is added, so that the stability of the transdermal patch containing rotigotine is improved, and precipitation of drug active components out from the transdermal patch containing rotigotine is prevented; and in addition, an adhesiveness conditioning agent is added, so that the permeability of the transdermal patch containing rotigotine is excellent.
Owner:BEIJING TIDE PHARMA

Sound equipment folding and unfolding device for solving problem that use effect influenced by dust pollution

InactiveCN112533087ASolve the problem of pollution affecting the use effectReduce pollutionMicrophonesMouthpiece/earpiece sanitary/hygienic devicesEngineeringAcoustic equipment
The invention relates to the technical field of combined sound equipment, and discloses a sound equipment folding and unfolding device for solving the problem that the use effect is influenced by dustpollution, the sound equipment folding and unfolding device comprises a shell, and the top of the shell is movably connected with a cover plate; through the combined action of the toothed bar and themovable assembly, the placement condition of the combined sound equipment is controlled according to the use requirements, and the opening and closing operation is triggered by utilizing the operation condition of the combined sound equipment, so that the cover plate does not shield the sound equipment any more, the sound equipment is convenient to move out, the sound equipment is retracted and released under the non-use condition, and the dust pollution is reduced; and the sound equipment can be normally used, is protected, is prevented from being damaged by external impact, and is automatically lifted to be directly exposed to the outside, and compared with a common fixed placement mode, the transmission effect of the sound effect of the sound equipment is improved, the feeling effect is improved, and the sound equipment is more suitable for the actual use condition.
Owner:广州笛熙服饰贸易有限公司
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