88 results about "Halothane" patented technology

A method of calculating the flux of any gas (x) in a CBC circuit for a ventilated or a spontaneous breathing subject, for example said gas(x) being; a) an anesthetic such as but limited to; i)N₂O; ii) sevoflurane; iii) isoflurane; iv) halothane; v) desflurame; or the like b) Oxygen; c) Carbon dioxide; or the like utilizing the following relationships; Flux of gas(x)=SGF (F_SX−F_EX) wherein SGF=Source of gas flow into the breathing circuit (CBC circuit) in liters/minute as read from the gas flow meter as set by the anesthesiologist; F_SX=Fractional concentration of gas X in the source gas (which is set by the anesthesiologist); F_EX=Fractional concentration of gas X in the end expired gas as determined by a portable gas analyzer, or the like.

The invention discloses a preparation method of a surface-modified self-healing type microcapsule. The preparation method comprises the steps of synthesizing the self-healing type microcapsule of Poly-urea formaldehyde coated epoxy resin firstly, and then performing surface modification treatment on the microcapsule by using fluothane coupling agent. By adopting the surface-modified self-healing type microcapsule, the affect on the mechanical property of a composite material caused by the self-healing type microcapsule is significantly improved, and therefore, the method provided by the invention is more suitable for the surface modification of the self-healing type microcapsule; furthermore, as the fluorine groups are existent on the surface of the microcapsule, the surface energy of a film can be reduced, and the hydrophobic property and the antifouling property are improved as well.

The invention discloses fluorinated hyperbranched polyester acrylate and a preparation method thereof. Fluoride-alcohol and hydroxy acrylate are chosen to react with diisocyanate respectively to achieve two semi-additive products, and the two semi-additive products in proper proportions are used to react with hydroxyl-terminated hyperbranched polymer, to achieve hyperbranched polymer fluorine terminated bases with acrylic acid ester base groups and halothane base groups linked to the hyperbranched molecular framework through carbamate base groups as well as acrylic acid modified hyperbranched polymer. The iso-cyan acid radical reaction of the method has high activity, the Fluoro-alcohol conversion rate is high, the raw materials are cheap and easy to obtain, the operation is easy, and capable of facilitating industrial production. The fluoric hyperbranched polyester acrylate achieved by the method can be applied to ultraviolet-light solidification coating, the achieved coating has sound hydrophobic and oleophobic performances, and the industrial application is very broad.

The invention discloses an aluminum fluoride catalyst with a high specific surface area. Ethyl ether of HF and/or an alcoholic solution are/is firstly added into an organic aluminum solution for reacting to obtain a catalyst precursor, and then the aluminum fluoride catalyst is obtained through fluoridation. The specific surface area of the aluminum fluoride catalyst can reach 200 m<2>/g to 320 m<2>/g, and the aluminum fluoride catalyst is suitable for synthesis of 1-chloro-2,2,2-halothane or 3,3,3-trifluoropropene or 1,1,1,2,3-pentachloropropane or 2,3,3,3-tetrafluoropropene.

The invention provides a preparation method of a thioglycoside compound. The preparation method comprises the following steps of: (a) dissolving halogenated acetylated sugar and thiourea into a first organic solvent and reacting under a heating condition to obtain S-glycosyl isothiourea halide; and (b) reacting the S-glycosyl isothiourea halide and halothane in mixed solution of a second organic solvent and organic amine to obtain the thioglycoside compound. In the entire reaction process, the thiourea and the halothane are mainly selected and used as reactants, ethanethiol with offensive odor and toxicity is not required to be selected and used, and the hazard caused to human health and environment is effectively avoided. In addition, according to the method provided by the invention, an obtained product is extremely easy to separate crystals, the pH is not required to be adjusted, and the post-treatment operation is simple.

The invention discloses a commercial pork pig multiple crossbreeding method. The method comprises the following steps of A) taking Pietrain pig with non-halothane allogene as the first male parent of multiple crossbreeding and Meishan pig as the first female parent of multiple crossbreeding for hybridization to obtain Pietrain-Meishan-crossed hybrid pig; B) taking Duroc pig as the second male parent of multiple crossbreeding and the Pietrain-Meishan-crossed hybrid pig as the terminal female parent of multiple crossbreeding for hybridization to obtain commercial pork pig. According to the commercial pork pig multiple crossbreeding method, the average litter size of multiparity sow of the first female parent of multiple crossbreeding is not less than 14.5; the hybrid high-quality commercial pork pig obtains an average daily gain up to more than 680 g/d (gramme per day) and a lean meat rate up to more than 64% and a feed conversion rate as little as 2.75, avoids PSE (pale-soft-exudative) meat and obtains an intramuscular fat percentage up to 2.5%.

A mold releasing agent is copolymerized with a fluorine-containing monomer, an acrylic ester monomer, and an acid monomer. Whereby, the mold releasing agent has comparable releasing performance and longevity to long-chain copolymers containing halothane.

The invention discloses a silicon release agent and a preparation method of the silicon release agent. The main ingredients of the silicon release agent are expressed through the following chemical general formula: A-L-B or A-L-Rf, the L is a bifunctional crosslinking agent (Linker); the A comprises an alkoxy silane conjugate having a hydrolysed siloxane functional group structure or an active oxygen-containing functional group conjugate; the B comprises a siloxane conjugate comprising an active functional group, or a carbon-containing oxane conjugate, or a Vinyl/Allyl/(methyl) acrylate conjugate, or an amido-containing carbon oxide conjugate; the Rf comprises a fluorine-containing carbon alkane conjugate, or a fluothane ether molecule, or a fluorinated conjugate ingredient. The silicon release agent can be applied to molding a plastic rubber resin, the polyurethane resin demolds quite easily when the silicon release agent is evenly coated on a polyurethane resin forming mold, and an even thermoset polyurethane resin molding material having no crack, gap or unfilled corner is obtained.

The invention discloses a method for preparing trifluorochloroethylene by halothane, which includes the step: subjecting the halothane to a reaction with chlorine and hydrogen in a fixed bed reactor respectively, wherein the chlorine is subjected to a reaction at a position of an inlet of the a reactor, the hydrogen is subjected to the reaction at the position 3m away from the inlet of the reactor, the temperature of the catalytic reaction is between 200 DEG C and 300 DEG C, the molar ratio of halothane and the chlorine is 1: (3-5), and the molar ratio of the halothane and the hydrogen is 1: (1-2). According to the method for preparing the trifluorochloroethylene by the halothane, traditional process is abandoned by the whole technological process, the trifluorochloroethylene is prepared by directly subjecting the halothane to respectively reacting with the chlorine and the hydrogen at different positions of the fixed bed reactor, and thereby the method is low in cost and high in yield.

The invention relates to an acrylamide copolymer containing halothane and phosphoric acid ester as well as a preparation method and the application thereof. The preparation method comprises the steps of: (1) dissolving monomer, crosslinking monomer and non-fluoro long-chain monomer of the acrylamide copolymer containing halothane and phosphoric acid ester and emulsifier in deionized water and solvent for ultrasonically pre-emulsifying for 1-5h to obtain milk-white pre-emulsion; (2) under the protection of N2, heating 1/3 of the pre-emulsion to 60-90 DEG C, slowly dropping an initiator aqueous solution for initiating reaction, stopping dropping after the emulsion has blue fluorescence, combining the residual initiator aqueous solution with the pre-emulsion, slowing dropping the combined residual initiator aqueous solution and pre-emulsion into reaction liquid, stopping reaction after continuously reacting for 1-5h at 60-90 DEG C, and cooling down to the room temperature to obtain the required emulsion PFPA (Per Fluoro Propionic Anhydride). In the invention, cotton fabric processed by the copolymer emulsion has excellent performances of resisting water, oil and flame, the processing process is simple, and greater development potency is provided.

The invention belongs to the technical field of small animal anesthesia and relates to a simple economical small animal inhalation anesthesia machine which comprises a gas steel bottle, a gas adjusting valve, a three-way pipe I, a gas flow meter I, a gas flow meter II, an isoflurane gas volatilization bottle, a three-way pipe II, an adjustable three-way pipe, an anaesthetic mask, an animal body constant temperature system, an anesthesia induction box and a gas recycling bottle. The gas steel bottle is connected with the gas adjusting valve, the three-way pipe I, the gas flow meter I, the gas flow meter II, the isoflurane gas volatilization bottle, the three-way pipe II, the adjustable three-way pipe, the anaesthetic mask, the animal body constant temperature system, the anesthesia induction box and the gas recycling bottle in sequence. Using results show that the simple economical small animal inhalation anesthesia machine is simple and reasonable in structure, various parts are fixed and combined in a coordinating mode, small animals can be subjected to anesthesia control in short time or long time, accurate anesthesia depth is guaranteed, safety is good, after operation, the morbidity and the mortality of the small animals are low, and the operation success rate is high.

The etching method of the present invention is that after material layer, anti-reflecting base organic coating layer and photoresist pattern are formed successively on the substrate, etching plasma gas including at least partially substituted halothane gas is used to etch the anti-reflecting base organic coating layer. During the etching, halothane polymer is formed on the side wall of the photoresist pattern to prevent the side wall from being etched.

The invention relates to a liver acellular stent construction method based on an irreversible electroporation technology. The method comprises the following steps of 1.1) weighing a rat, carrying outgas inhalation anesthesia by using isoflurane, maintaining the gas inhalation anesthesia, after the anesthesia is effective, disinfecting abdominal skin of the SD rat in a supine position by using 75%alcohol, and opening the abdomen layer by layer to expose the liver; 1.2) clamping a left lateral lobe area of the rat liver by using a caliper type electrode, and performing high-voltage pulsed electric field treatment; 1.3) after the irreversible electroporation treatment is finished, performing transhepatic portal vein catheterization, perfusing with heparinized PBS (Phosphate Buffer Solution), cutting off the subhepatic inferior vena cava until the liver is full and the color is gradually lightened, gradually dissociating tissues and ligaments around the liver, taking down the liver, andimmersing the liver into the heparinized PBS; 1.4) putting the taken liver into a clean container, and performing one-way perfusion with deionized water, and 1.5) after the deionized water perfusion is finished, performing one-way perfusion with PBS for 30 minutes to complete the preparation of the stent. By the method disclosed by the invention, the construction efficiency of the in-vitro acellular stent can be effectively improved under the condition of not applying harmful chemical preparations.

The invention provides a genotype test method for a pig halothane gene. Two groups of different primers are schemed out according to the base sequences of two ends of the mutant site of the pig halothane gene, sample DNA respectively receives the PCR amplification with simultaneously, the change of the product amount is monitored through the fluorescent signal intensity change to judge the genotype of the sample DNA. The invention solves the technical problems of low accuracy, many operation steps, complicate process, long time and toxic test reagents of the methods for testing the genotype of the pig halothane gene in the prior art, improves the test accuracy, simplifies the operation procedures, and avoids the use of the toxic and harmful reagents.

This invention relates to a preparation method of pentafluoroethane (HFC-125). It takes hydrogen fluoride (HF) and tetrachloroethene (PCE) as raw material, used two reaction vessel through two-step gaseous phase fluoridation to prepare HFC-125. The first reactor mainly fluorate PCE to synthesize 2,2 - dichloro-1 ,1,1 - halothane (HCFC-123) and 2-chloro-1 ,1,1,2 - tetrafluoroethane (HCFC-124); the second reaction mainly fluorate at least one of HCFC-123, HCFC-124 to synthesize HFC-125. Using distillation column to take PCE from the products of first reactor, and then circulate to first reactor. Take phase separator to separate HF, HCFC-123 and HCFC-124 from products of first and second reactor, HF can circulate to first and second reactor for continues reaction, HCFC-123 and HCFC-124 can be recycled to the second reactor continued reaction, but also can through distillation and separation to obtain HCFC-123 and HCFC-124 products. The invention mainly for prepare pentafluoroethane.