摘要:
A coated tubular construct for biological and industrial applications includes a plurality of channels, where each channel is radially surrounded by a wall comprising a first polymer, and a conformal coating comprising a second polymer is disposed on an outer and/or an inner surface of each wall. A method of producing a tubular construct includes 3D printing a template structure comprising a sacrificial material and a photoinitiator, and immersing the template structure in a first prepolymer solution comprising a first prepolymer and a co-initiator. During the immersion, the template structure is exposed to light, and the first prepolymer undergoes radical polymerization to conformally coat the template structure with the first polymer, forming a coated template. The sacrificial material is removed from the coated template, and a tubular construct comprising the first polymer is formed.
摘要:
Tools for sealing a tubing in a downhole environment. The tools feature top and bottom slip assemblies and a monolithic sealing element. The monolithic sealing element includes a portion that is disposed between the top and bottom slip assemblies as well as portions that encapsulate the slip assemblies. When the tool is actuated from a run-in configuration to a set configuration, the slips move toward each other squeezing the sealing element so that it forms a fluid-tight seal with the tubing. Teeth of the slip assemblies penetrate the portions of the sealing element disposed thereon and bite into the tubing.
摘要:
Systems and methods for making a custom sleep apnea mask or other wearable article are disclosed. The sleep apnea system comprises a face mask, a headband integrally connected to the face mask, and at least one air duct configured to direct air from the CPAP machine to nasal tubes. The face mask preferably comprises: an inner surface having the same shape as the user's face; an upper surface configured to sit at a first predetermined distance between the user's nose and eyes; and an outer surface configured to extend a second predetermined distance from the inner surface. Nearly shape and position of substantially all the surfaces of the mask are configured based on the shape and or location of facial features, resulting in a highly customized mask optimized for each individual patient.
摘要:
Systems and methods for making a custom sleep apnea mask or other wearable article are disclosed. The sleep apnea system comprises a face mask, a headband integrally connected to the face mask, and at least one air duct configured to direct air from the CPAP machine to nasal tubes. The face mask preferably comprises: an inner surface having the same shape as the user's face; an upper surface configured to sit at a first predetermined distance between the user's nose and eyes; and an outer surface configured to extend a second predetermined distance from the inner surface. Nearly shape and position of substantially all the surfaces of the mask are configured based on the shape and or location of facial features, resulting in a highly customized mask optimized for each individual patient.
摘要:
A vacuum barrier system for curing a composite part may include a bag carrier and a compliant, relatively thin film bladder formed over the bag carrier to function as a vacuum barrier. The bag carrier may be configured complementary to the composite part. The bladder may seal the bag carrier therewithin.
摘要:
Methods, associated products and apparatus are described for the production of biodegradable foam products using a controlled pressure increase due to compressed air and a controlled pressure decrease in pressure as key variables during a microwave heating cycle to produce a foamed product. The biodegradable product formed has improved characteristics including a density from 10 to 100 kg/m3; a soft and resilient structure; cushioning G-value characteristics to cushion an object with a fragility of 15 to 115; and a surface abrasion comparable to polystyrene.
摘要翻译:描述了用于生产可生物降解的泡沫产品的方法,相关产品和设备,其使用由压缩空气控制的压力增加和在微波加热循环期间作为关键变量的受压压力降低来生产发泡产品。 形成的可生物降解的产品具有改善的特性,包括10至100kg / m 3的密度; 柔软弹性结构; 缓冲G值特征,缓冲物体,脆度为15〜115; 和与聚苯乙烯相当的表面磨损。
摘要:
A method of forming a water soluble container, comprising an injection moulded water soluble polymer, in which is present a fabric care, surface care or dishwashing composition, by injection moulding a thermoplastic material into a mould, wherein before or during the injection moulding process the mould is actively heated, the mould being at an elevated temperature, below the melting point of the thermoplastic material, throughout the injection moulding process.
摘要:
A method of forming a water soluble container, comprising an injection moulded water soluble polymer, in which is present a fabric care, surface care or dishwashing composition, by injection moulding a thermoplastic material into a mould, wherein for or during the injection moulding process the mould is actively heated, the mould being at an elevated temperature, below the melting point of the thermoplastic material, throughout the injection moulding process.
摘要:
A method for preparing coated binder units, wherein the coated binder units comprise a core of binder coated with a layer of coating material, is disclosed. The method comprises steps of: (a) co-extruding the binder and the coating material, thereby producing an extrudate wherein the binder is coated with a layer of coating material; and (b) optionally, shaping the extrudate, into coated binder units.
摘要:
The invention relates to a process for the preparation of thermoplastic molding materials comprising A) from 39 to 99% by weight of at least one thermoplastic polymer, B) from 1 to 60% by weight of a flameproofing component comprising B1) an expandable graphite, and C) from 0 to 60% by weight of further additives, the percentages by weight being based in each case on the total weight of the components A) to C) and together giving 100% by weight, by mixing melts of the components A), B) and, if present, C) in a screw extruder, the screw extruder comprising at least one metering zone, one plasticating zone, one homogenization zone and one discharge zone in this sequence along the conveying direction, wherein the metering of the expandable graphite B1) into the screw extruder is effected at a point behind which—viewed in the conveying direction—the extruder screw comprises substantially no shearing elements, and thermoplastic molding materials which can be prepared by these processes, the use of said thermoplastic molding materials for the production of fibers, films, moldings and foams, and these fibers, films, moldings and foams themselves.