32results about How to "Eliminate crystallization" patented technology

A golf ball having a thermosetting polyurethane cover composed of a blend of polyurethane prepolymers is disclosed herein. The blend may be a dual blend with a TDI-based polyurethane prepolymer blended with a second diisocyanate polyurethane prepolymer, typically a PPDI-based polyurethane prepolymer. The blend may also be a tri-blend with a TDI-based polyurethane prepolymer blended with two other diisocyanate polyurethane prepolymers, typically two different PPDI-based polyurethane prepolymers. The golf ball has a durability of at least 3.5 on a shear test rating of the cover.

A method of depositing a top clad layer for an optical waveguide of a planar lightwave circuit. A GeBPSG top clad layer for an optical waveguide structure of a planar lightwave circuit is fabricated such that the top clad layer comprises doped silica glass, wherein the dopant includes Ge (Germanium), P (Phosphorus), and B (Boron). In depositing a top clad layer for the optical waveguide, three separate doping gasses (e.g., GeH4, PH3, and B2H6) are added during the PECVD (plasma enhanced chemical vapor deposition) process to make Ge, P and B doped silica glass (GeBPSG). The ratio of the Ge, P, and B dopants is configured to reduce the formation of crystallization areas within the top clad layer and maintain a constant refractive index within the top clad layer across an anneal temperature range. A thermal anneal process for the top clad layer can be a temperature within a range of 950 C to 1050 C. The GeBPSG top clad layer reduces the insertion loss of passive arrayed waveguide grating devices and active planar lightwave circuit devices.

The invention discloses injection of mannite and glycerol, which contains mannite, glycerol and water for injection. Furthermore, the invention also discloses a method for preparing the injection, which comprises the following steps: taking the mannite and the glycerol, dissolving into the water for injection, filtering and filling. The injection of the mannite and the glycerol is clinically usedfor treating cerebrovascular diseases, brain trauma, cerebral tumors, intracranial inflammation and the diseases of acute and chronic intracranial hypertension, hydrocephalus and the like caused by other reasons. The injection of the mannite and the glycerol has the functions of lowering the intracranial pressure quickly and eliminating the hydrocephalus and can also avoid death because of acute renal failure caused by the injury of the kidney; the injection of the mannite and the glycerol suppresses the apoptosis of neural cells and achieves the function of protecting the brain; the functionof lowering the intracranial pressure is stable and has long retention time; crystals occurring because of the change of the air temperature or in the processes of storage and transportation are eliminated; and the glycerol is used as a caloric agent and can improve and recover the energy metabolism of the important viscera of the heart, the brain, the kidney and the like during oxygen deficiency. The injection of the mannite and the glycerol is a very effective, stable and safe medicine for promoting urination and removing water clinically.

The invention relates to a freezing point detector. A magnetic stirrer is arranged outside the lower end of a cold trap; the outer wall of the cold trap is provided with a semiconductor freezer; the magnetic stirrer and the semiconductor freezer are connected with an electromagnetic switch by wires; the upper end of the cold trap is provided with a cold trap cover; the cold trap cover is providedwith a cold bath temperature sensor; a heating tube with an inner tube is arranged in an air casing of the cold trap; the upper end of the inner tube is provided with an inner tube cover of a sample temperature sensor; the outside of the heating casing is connected with an upper heating resistance wire and a lower heating resistance wire by a wire and the electromagnetic switch; the electromagnetic switch is connected with a computer by a cable; the inner wall of the inner tube is provided with an inner tube wall temperature sensor; the inner tube wall temperature sensor, the sample temperature sensor and the cold bath temperature sensor are connected with the computer by cables. The method of determining the freezing point comprises preparing determination steps, roughly measuring the freezing point of a solvent, determining the freezing point of the solvent, measuring the freezing point of the tested sample solution, and other steps. The molecular weight of the tested item can be calculated according to the determined freezing point.

The invention relates to an intelligent active freezing-proof coating material and a preparation method and application thereof. The material comprises the following formula: 10-60wt% of thermosensitive phase-change materials, 10-60wt% of heavy molecular weight polymer containing ureides groups and 20-80wt% of solvent. The preparation method is characterized in that the components are stirred and mixed to prepare freezing-proof coating material solution; after the solution is dried by evaporation, the freezing-proof coating material is formed; and the obtained freezing-proof coating material is attached to an objected to be treated by adopting a soaking mode, a manual brush painting mode or an electrostatic spraying mode. Compared with the prior art, the invention has the characteristics that the obtained freezing-proof coating material has long-term freezing-proof capability and favorable aging resistance, wearability and transparency, does not affect matrix color and the like.

The composition of total-biodegraded thermoplastic starch resin includes (by weight portion) starch 50.0-75.0, blend A 5.0-20.0, blend B 10.0-20.0 graft modifier 1.0-5.0, chemical initiator 0.1-1.0, plasticizer 2.0-10.0, covering agent 0.3-3.0 and antioxidant 0.1-2.0, in which the blend A is one kind of more than one kind of thermoplastic resin, and the blend B is one kind of more than one kind of cellulose, polyvinyl alcohol, polyglycolic acid and polyester, and its graft modifier is one or more than one kind of long-chain unsaturated carboxylic acid and its ester. It can be directly used for making various tableware, cup, disk, film and package products, etc.

The invention relates to a built-in ultrasonic electrode body structure and an ultrasonic battery thereof, and the structure comprises a positive electrode body or a negative electrode body, and is characterized by comprising an ultrasonic vibration module built in the positive electrode body or the negative electrode body; the ultrasonic vibration module comprises an ultrasonic vibration element and an insulating material layer wrapping the peripheral surface of the ultrasonic vibration element, and a wiring terminal electrically connected with the ultrasonic vibration element is further arranged at or outside the top end of the positive electrode body or the negative electrode body; an ultrasonic solid-state lithium battery, an ultrasonic lithium battery and an ultrasonic lead-acid battery scheme are constructed by applying the ultrasonic battery pole body to a solid-state lithium battery, a lithium battery and a lead-acid battery, and the battery schemes have the advantages of extremely high charging and discharging efficiency, bulging prevention, explosion prevention, extremely high safety, excellent performance, cold resistance, passivation prevention and long service life; the structure is simple, the production is easy, and the industrial development is met.

The invention relates to a sewage pretreatment device and a method for sewage pretreatment with the device, in particular to a self-heating heat-pump energy-saving device for lurgi furnace gasification sewage and a method for the sewage pretreatment with the device. The problems that the existing lurgi furnace sewage treatment technology is high in energy consumption and operating cost, and equipment is blocked easily are solved. The self-heating heat-pump energy-saving device for the lurgi furnace gasification sewage comprises a vacuum extraction and sedimentation compound tower, an evacuating device, a heat exchange knockout tower, a circulating pump, an aqua-ammonia pump and a sewage circulating pump. The method comprises the steps that hot sewage enters the vacuum extraction and sedimentation compound tower; sensible heat in the sewage entering the vacuum extraction and sedimentation compound tower is converted to gasification latent heat by pressure reduction through the evacuating device; pressure is recovered after the sewage enters the heat exchange knockout tower; the latent heat is released to be converted to the sensible heat; and the heat is sent back by heat-exchange heating low-temperature sewage for cycling. The device and the method can be applied to pretreatment of the lurgi furnace gasification sewage.

D-glass fiber consists of SiO2, Al2O3, CaO, MgO, B2O3 and Fe2O3. It has a lower dielectric constant, viscosity temperature of Log3 is <1300DEG C, liquefaction temperature is <1100DEG C, the difference between the both is above 75DEG C. It can prevent fibre spinning and crystallizing, has good wetting-resistant performance and lower electricity consumption. It can be used for substrate materials for printing circuit board.

The invention discloses a method for preparing a tissue engineering scaffold material by using a degradable synthetic polymer material, which comprises the following steps: (1) forming a polymer sample through molding technology, and then placing it in a high-pressure container; (2) Use a supercritical fluid to replace the gas in the high-pressure container; (3) heat and pressurize the high-pressure container to saturate the high-molecular polymer sample in a high-temperature and high-pressure supercritical fluid atmosphere, and make the high-pressure container The molecular polymer sample is melted at a temperature higher than the critical temperature or critical pressure of the supercritical fluid, eliminating polymer crystallization; (4) cooling down to the foaming temperature; (5) rapid pressure release. The invention melts the crystal region of the high-molecular polymer through high temperature, eliminates polymer crystallization, solves the foaming problem of the linear linear high-crystallinity biological high-molecular polymer, and finally obtains a structure-controllable tissue engineering scaffold material.

The invention discloses a process for producing a benzophenone ultraviolet ray absorbent, and the process includes mixing of a benzophenone compound A and an alkyl halide for alkylation to obtain a benzophenone compound B. The alkyl halide can be prepared by the reaction of a primary alcohol and thionyl chloride under catalysis of a tertiary amine. Further, hydration and distillation of the system after the completion of the alkylation are carried out in order to eliminate crystallization and purification steps. The process is simplified, a high purity product is obtained, solvent consumption is reduced, and the cost is reduced.