摘要:
A film edge sealing device is disclosed herein which has a groove defining a base. The base of the groove of the edge sealing device is oriented at a skewed angle with respect to a longitudinal direction of the conveyor of the heat sealing machine. Edges of a thermoplastic sheet or two stacked layers of thermoplastic sheets are introduced into the groove of the edge sealing device and placed in contact therewith to both heat and melt the edges of the thermoplastic sheet(s) to form a bead and join the edges thereof to form an edge bead seal.
摘要:
The medical devices of the present disclosure are filled reservoirs such as a cylinder comprised of a polymer film which contains a reservoir of active agent, plus excipient, in some cases, for disease prevention, treatment, and/or contraception. The polymer film is permeable to the active agent after subcutaneous implantation of the device into a body. The cylinder is comprised by the lamination of one or two polymer films which are ultrasonically welded to contain the drug material. The use of an ultrasonic welding process enables sealing of the polymer films to create the closed cylinder. The medical device is useful for long term disease prevention, such as prevention of HIV infection.
摘要:
A method for sealing a fastener employs a mold which provided with an inlet port for molding material. The mold is then positioned over a fastener and the mold is sealed against a structure. A molding material is then injected into the mold. The mold is then removed to leave an in-situ molded cap formed over the fastener and sealed to the structure.
摘要:
Mold for producing a panel assembly comprising a panel and a gasket, which gasket is adhered to the panel, and extends along at least a portion of the periphery thereof, the mold comprising a first mold part and a second mold part that are formed such that the panel can been closed thereby forming a closed cavity the inner boundaries of which are formed by a first mold surface, a second mold surface and the periphery of the panel, and wherein the second mold part comprises a resilient lip extending along the periphery, the resilient lip being provided for being displaced by an applicator device to provide access to the closed cavity.
摘要:
A bioresorbable material incorporating magnesium (Mg) wires into NGCs is disclosed. The bioresorbable material includes magnesium, and a biodegradable polymer, for example, poly(lactic-co-glycolic acid (PLGA). The bioresorbable material can include magnesium wires incorporated into a poly(lactic-co-glycolic acid (PLGA) scaffold to provide both directional and biological cues in a fully bioresorbable material. A method of producing a bioresorbable material is also disclosed, which includes placing a plurality of magnesium (Mg) wires on a layer of a poly(lactic-co-glycolic acid (PLGA) solution, placing a second layer of the poly(lactic-co-glycolic acid (PLGA) solution on the plurality of magnesium (Mg) wires, and drying the plurality of magnesium (Mg) wires between the two layers of poly(lactic-co-glycolic acid (PLGA) solution.
摘要:
An injection molding device including a middle flow channel which forms an intermediate layer of a preform which is subject to biaxial stretch blow molding. The middle flow channel s segmented into a predetermined number of flow sub-channels by vertical blocking rib piece(s). Side wall's upstream portions of the vertical blocking rib piece are formed as angled surfaces whose distance from each other decreases from the downstream side to the upstream side, and/or, an end portion of the vertical blocking rib piece that is located on the downstream side is tucked in at least one of the inner flow channel and the outer flow channel.
摘要:
The invention relates to an assembly for adhesively connecting substantially congruent gluing surfaces of a first and second joining partner over their full surface, comprising: the first joining partner (1); the second joining partner (2); an adhesive layer (3) of a polar, flowable adhesive applied to the gluing surface (1a) of the first joining partner (1); means (8) for holding the second joining partner (2) above the adhesive layer (1a) of the first joining partner (1), such that the gluing surface (2a) of the second joining partner (2) faces the adhesive layer (3) on the first joining partner (1) and is disposed so as to be spaced therefrom across an air gap (5), and the spacing defined by the air gap (5) between the first joining partner (1) and the second joining partner (2) is dimensioned in such a way that a capillary volume is formed; means (7) for generating an electric field (10) in order to cause, by means of electric influence, a local charge displacement (11) on and/or in the second joining partner (1), and the charge displacement (11) is suitable for attracting the polar adhesive in such a way that it wets the gluing surface (2a) of the second joining partner (2) first in the area of the local charge displacement (11), wherein the means for generating the electric field comprise an electrode (7), which is disposed on the side of the second joining partner (2) facing away from the gluing surface (2a) and is electrically insulated from said partner (2).
摘要:
A bag contains polysilicon, has been welded and includes at least one weld seam and a polyethylene film having: a thickness of 150-900 μm; a stiffness at a flexural modulus Fmax of 300-2000 mN and Ft of 100-1300 mN; a fracture force F determined by dynamic penetration testing of 200-1500 N; a fracture energy Ws of 2-30 J; a penetration energy Wtot of 2.2-30 J; a film tensile stress at 15% longitudinal and transverse elongation of 9-50 MPa; an Elmendorf longitudinal film tear resistance of 10-60 cN; an Elmendorf transverse film tear resistance of 18-60 cN; a longitudinal film elongation at break of 300-2000%; a transverse film elongation at break of 450-3000%; and a weld seam strength of 25-150 N/15 mm. A method includes filling a bag with polysilicon, and welding by pulse sealing with contact pressure greater than 0.01 N/mm2 to obtain a 25-150 N/15 mm weld seam strength.
摘要:
Provided is a light-emitting device that has excellent light extraction efficiency, inhibits deterioration of light-emission characteristics over time, and can be easily produced. The light-emitting device includes a substrate, a solid-state light-emitting element mounted on the substrate, a circular tube-shaped member positioned on the substrate such as to surround the solid-state light-emitting element, and a transparent resin portion including a cylindrical section that encapsulates the solid-state light-emitting element and that is in contact with an inner surface of the circular tube-shaped member, and a dome-shaped section that is positioned above the cylindrical section. The inner surface of the circular tube-shaped member is water repellent. The dome-shaped section contains a phosphor that is excited by light of a light-emission wavelength of the solid-state light-emitting element.
摘要:
A method for sealing a fastener employs a mold which provided with an inlet port for molding material. The mold is then positioned over a fastener and the mold is sealed against a structure. A moisture cured polyurethane reactive adhesive (MCRPA) as a molding material is then heated and injected into the mold. Upon solidification of the MCRPA, the mold is then removed to expose the MCRPA to atmospheric moisture and cured to leave an in-situ molded cap formed over the fastener and sealed to the structure.