73results about How to "Regain shape" patented technology

The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.

The present invention is a hair accessory having a special coil design. The hair accessory comprising a substantially circular shaped member having a plurality of coiled coil structures, each of the plurality of coiled coil structures is arranged in a way to form a closed helical loop. When the coiled coil structure is twisted and folded for holding the hair, its special structure permits it to lock with itself so that the hair accessory remains in hair even if strenuous movement is performed by the wearer. The hardness of the material results in less friction with the hair thereby allowing easy gliding during pull out of hair. The twists around the hair act as anchors thereby not allowing the hair accessory to dislodge. The constant use of the hair accessory may tend to loose its shape and it can regain its shape by placing the hair accessory in boiling water.

A closure for releasably securing to a container adapted for storing foodstuff or a beverage, the closure comprising closing means (14) for closing a mouth of the container and securing means (22,23) for securing it in a closed position, the closing means and the securing means being formed of a plastics material comprising polyoxymethylene so as to provide a substantial gas barrier to the passage of oxygen and/or carbon dioxide therethrough, The closure may have a sealing member (18) formed of resilient material (compared to the rigid material of the remainder of the closure) for providing a seal between the closure and the container. The sealing member may be provided on a bore component which projects into the container so that, in use, it seals against an internal surface of the container. The sealing member may be an o-ring (18) formed of an elastomer, e.g. nitrile butadiene rubber. A foodstuff or beverage container, e.g. in the shape of a wine glass or the shape of a beer glass, having such a closure is also described. The use of a plastics material comprising polyoxymethylene for closing a container provides a barrier to the ingress of oxygen and/or to the egress of carbon dioxide to improve the shelf life of the product is also described.

The invention discloses a pressure-sensitive graphene film preparation method. Graphene oxide is subjected to solution film formation, chemical steam reduction, high-temperature sintering and the liketo obtain a graphene film. The graphene film is high in flexibility and free of marks after being repeatedly folded by more than 100 thousands of times and is quick in shape recovery (50ms). The high-flexibility elastic graphene film is resistant to repeated folding of more than 100 thousands of times, the horizontal elastic elongation at break is 12-24%, the elastic vertical compression rate is80-90%, and the electric conductivity is 400-700S/cm. The high-flexibility elastic graphene film is highly sensitive to pressure and can be used as a high-fatigue-resistance pressure sensor.

The present invention aims to provide a biodegradable particle capable of being molded without an aggregation or cohesion of the particles, capable of being carried or injected without clogging by an aggregation in a micro diameter tube such as of a catheter, needle or syringe mainly used in pharmaceutical and medical applications of which inner diameter is smaller than the particle size or in a blood vessel and capable of being smoothly degraded in a specified period of time so that degraded component can finally be absorbed or discharged in vitro. As means for solving the problem, the present invention provides a biodegradable particle characterized in that a compressive modulus of the particle in water saturated state is 10 MPa or less.

The invention discloses a method for remedying water-eroded defects on the finished surface of an engine cylinder block and belongs to the technical field of engine cylinder block refabrication. The method includes: polishing the defective surface to expose a cylinder block body; polishing sharp corners or edges on the cylinder block body; removing oil at defective positions; re-polishing; cleaning the defective positions; remedying the defective positions by electric spark ionic microwelding to make the welded positions level to the finished surface of the cylinder block; polishing the welded positions to make the welded positions lower than the finished surface of the cylinder block; remedying the welded positions by pulse cold welding to make the welded positions higher than the finished surface of the cylinder block; and polishing the welded positions to make the welded positions level to the finished surface of the cylinder block. The method effectively guarantees fine bonding of welding material and substrate during welding. The electric spark ionic microwelding is reasonably combined with the pulse cold welding, so that efficiency is increased and the remedied texture is kept dense and non-defective.

The invention provides a chromium carbide ceramic thermal-spraying flux-cored wire. The weight percentages of chemical compositions of the flux-cored wire are that 75 to 85 wt% of Cr2C3, 10 to 15 wt% of NiCr, 1 to 3 wt% of La2O3 and 4 to 7 wt% of graphite; and the powder size is minus 120 to plus 80 meshes. The raw materials are put into an agitator to be evenly mixed, a H08 low-carbon steel belt is adopted by a scarfskin, flux-cored wire production equipment is adopted, and the ceramic flux-cored wire of which the outer diameter is F4 to F6 is formed through curliness and extraction. When the flux-cored wire is used, the spraying distance is controlled within a range of 80 to 120mm and the coating thickness is 0.1 to 0.3mm. The flux-cored wire has the advantages that the cost is low, a large bonding strength reaching 15 to 20MPa exists between a sprayed coating and a low-carbon steel substrate, the sprayed coating has higher hardness reaching 600 to 1000HV within a certain spraying distance range and has higher wear resistance.

The invention concerns a device for packaging and delivering a liquid product, comprising a container deformable by pressure applied on its side walls, wherein said liquid to be delivered is stored, said container being closed by a head for dispensing the liquid product which is traversed by an outlet for the liquid product. The device also comprises a liquid drawing tube whereof one end is fixed proximate the outlet for the liquid, the tube being of such length that its other end is proximate the base of the container. The wall of the container comprises cavities partly delimiting the outline of the dispensing head. The invention is characterized in that at least one passage is provided proximate the dispensing head to ensure an air intake into the container after the liquid is dispensed, so as to allow the container to recover its initial shape by replacing by volume the dose of liquid delivered.

Provided is a dripper that is light-weight and deformable into an arbitrary shape to be stored compactly and that enables coffee extraction irrespective of the existence of a filter. Provided is a dripper 1 for extracting coffee, including: a filter portion 10 that is formed from fabric with permeability and that includes an opening 11 through which coffee powder can be added and a receiving portion 12 that receives the coffee powder added through the opening 11; and a frame 50 that is made of an super-elastic alloy and can define the respective shapes of the opening 11 and the receiving portion 12 in the filter portion 10.

The invention concerns a machine comprising a plurality of workstations each provided with a receptacle (1) containing gloves to be sorted, a programmed automaton (8), a glove holder (2), a matrix code reader (3), a conveyor belt (7) and a rack dispensing (6) the gloves to individual band conveyors. The invention is useful for treating gloves used in environments with controlled atmosphere.

A fabric having a memory function, comprising yarns of substantially 100% spandex with a structure of a two-way stretch fabric. The fabric has the “memory” function by which it returns to substantially its original shape after being stretched many times its original size. The fabric can be used to make a laminated fabric in which the memory fabric is sandwiched between a top surface fabric and a bottom surface fabric. The resulting laminated fabric also has the “memory” function and can be used to replace the conventional elastic woven bands used in undergarment in order to increase the elasticity and strength.

Artificial hair fiber having shape memory and shape restoration function, artificial hair fiber having excellent flame resistance, and artificial hair fiber having low gloss appearance are provided.

Provided is an artificial hair fiber including a resin composition including at least one polyamide, the artificial hair fiber satisfying at least one of constitutions (1) to (3): (1) the fiber has a modulus of elasticity of 2400 to 3000 N/mm²; (2) the polyamide has a weight average molecular weight Mw of 6.5×10⁴ to 15×10⁴ and the fiber has a modulus of elasticity of 500 to 15000 N/mm²; (3) the fiber has a modulus of elasticity of 500 to 15000 N/mm² and the resin composition contains 5 to 20 parts by mass of fine particles with respect to 100 parts by mass of the polyamide.

The invention relates to a self-adjustment magnetorheological flexible polishing abrasive wheel and a polishing method thereof. The self-adjustment magnetorheological flexible polishing abrasive wheel comprises a fixing ring, an inner gear, an abrasive wheel ring, a gear shaft, a synchronous rotation gear, a planetary gear, a rotary shaft and a cylinder permanent magnet. The rotary shaft is arranged in the abrasive wheel ring. The cylinder permanent magnet is arranged in a through hole formed in the lower end of the rotary shaft. The inner gear is arranged on the upper portion of the abrasive wheel ring. The fixing ring is arranged at the top of the inner gear and fixed to a machine tool. An abrasive wheel connector is arranged at the top of the abrasive wheel ring and the top of the fixing ring. The abrasive wheel connector is connected with the abrasive wheel ring. An outer gear is arranged on the abrasive wheel connector. The gear shaft is arranged on the abrasive wheel connector. The planetary gear is arranged on the gear shaft. The synchronous rotation gear is arranged at the upper end of the rotary shaft. The planetary gear is engaged with the outer gear arranged on the abrasive wheel connector. The synchronous rotation gear and the planetary gear are engaged with the inner gear. According to the self-adjustment magnetorheological flexible polishing abrasive wheel and the polishing method thereof, replacing and self-sharpening of abrasive materials and real-time recovery of the shape of an abrasive wheel block are achieved, and the self-adjustment magnetorheological flexible polishing abrasive wheel and the polishing method thereof are suitable for efficient, super-smooth and uniform grinding and polishing of planes of photoelectronic/microelectronic substrates and optical elements.

The invention discloses a method for remedying water-eroded defects on the surface of an engine cylinder block and belongs to the technical field of engine cylinder refabrication. The method includes: polishing the defective surface to expose a cylinder block body; polishing sharp corners or edges of the cylinder block body; removing oil at defective positions; re-polishing; cleaning the defective positions; remedying the defective positions by electric spark ionic microwelding to make the welded positions higher than the surface of the cylinder block; and polishing the welded positions to make the welded positions level to the surface of the cylinder block. The method effectively guarantees fine bonding of welding material and the cylinder block body during welding. The cylinder block body is not heated, deformed or undercut, and the welding material is metallurgically combined with the cylinder block body under fine intensity. The shape and precision of the defective positions are restored fully, original properties of a workpiece are restored, and the water-eroded defects on the surface of the engine cylinder block are remedied.

The invention discloses a blood vessel tail artifact removal method and system based on blood flow signal intensity layered filtering. The method comprises the following steps: collecting OCT scattered signals in a three-dimensional space from a biological tissue sample through a signal acquisition method; combining a blood flow signal intensity calculation method with the intensity of an OCT scattered signal and decorrelation to represent the intensity of the blood flow signal; enabling the blood flow signal intensity to be subjected to layered comparison in the depth direction through a layered filtering method for the blood flow signal intensity, and removing artifacts at the tail of the blood vessel. According to the method, the distinction degree between the blood vessel signal and the blood vessel tail artifact signal can be improved, the blood vessel tail artifacts are effectively removed, and meanwhile the capacity of recovering the shape of the blood vessel shielded by the artifacts is achieved.

The invention is a collapsible tube having excellent moisture and temperature-resistance. The collapsible tube, such as a spirally wound or convolute paperboard forming tube, includes moisture-resistant and temperature-resistant layers at its inside and outside surfaces. These moisture-resistant and temperature-resistant layers may be polymeric, parchment, or metallic materials, particularly metal foil layers. The collapsible tube is especially useful as a reusable forming tube in the manufacture of glass fibers.

The invention relates to a preparation method of reversible covalent cross-linked reprocessable epoxy resin containing thioester bonds. The preparation method comprises the following steps: firstly, synthesizing an epoxy curing agent containing a reversible covalent bond-thioester bond by utilizing acid anhydride and mercaptocarboxylic acid, then mixing the epoxy curing agent with an epoxy monomer, and curing epoxy at a specific temperature to obtain the epoxy resin capable of being reprocessed for multiple times. The epoxy curing agent is simple to synthesize, easy to operate and wide in rawmaterial source. And the synthesized epoxy curing agent can be used for various epoxy monomers. Because the dynamic covalent bond thioester bond can be subjected to dynamic exchange reaction, the cured epoxy resin not only has excellent mechanical properties, but also has excellent reprocessing properties.

The invention provides a spiropyrane-containing photoinduced shape memory discoloration polymer and a preparation method thereof, and belongs to the technical field of functional polymer preparation.The preparation method of the spiropyrane-containing photoinduced shape memory discoloration polymer comprises the following steps: reacting polyether polyol or polyester polyol with diisocyanate to obtain an isocyanate-terminated prepolymer 1; adding a chain extender into the prepolymer 1, and carrying out a chain extension reaction to obtain a polyurethane polymer; and reacting the polyurethanepolymer with spiropyrane to obtain the spiropyrane-containing photoinduced shape memory discoloration polymer. The spiropyrane-containing photoinduced shape memory discoloration polymer gives consideration to a photoinduced shape memory effect and a photoinduced discoloration effect, i.e., the spiropyrane-containing photoinduced shape memory discoloration polymer has very good shape fixing rate, shape recovery rate and discoloration rate, and can be widely applied to the fields of information storage, counterfeiting prevention, flexible camouflage robots and the like.