Abstract:
In a bending portion of a conduit, a gap between a lining material and an inner surface of the conduit is minimized. A lining material 1 obtained by rolling a lining material sheet into a tubular form is installed in a conduit P with both ends of the lining material sheet 1 in its circumferential direction circumferentially overlapping each other. In this process, the lining material 1 is installed so that, in a bending portion P3 of the conduit P, an overlapping portion 1a where the both ends of the lining material sheet 1 overlapping each other faces toward an outer curvature side of the bending portion P3. Then, the diameter of the lining material 1 installed in the conduit P is expanded with the both ends of the lining material sheet 1 circumferentially slid on each other. This facilitates inflation of a portion of the lining material 1 which portion faces toward the outer curvature side in the bending portion P3, thereby to decrease the gap between the lining material 1 and an inner surface of the bending portion P3.
Abstract:
The present invention relates to protective packaging that can be precisely adapted to at least part of the outer shape of goods to be packaged, said protective packaging consisting of at least one inflatable cushion element constructed from a multi-layer plastic film, said cushion element being divided into correspondingly subdivided chambers by at least one sealing seam, said invention further relating to the use of such multi-layer synthetic films for producing said protective packaging, a method for producing such protective packaging and the use thereof for the packaging of various goods.
Abstract:
A composite construct comprising a side wall extending at least partially around an interior of the composite construct. At least a portion of the side wall comprises at least one laminate, and the at least one laminate comprises at least one layer of material that comprises a first renewable polymer. The composite construct can also comprise at least one injection-molded element comprising at least a second renewable polymer.
Abstract:
An object is to manufacture a preform having an insulating material by equipment of simplified configuration. Solution A carbon fiber preform has a plurality of carbon fiber sheets that are stacked and are bonded to each other by means of an adhesive resin having thermal plasticity. This carbon fiber preform comprises a partial-conducting layer arranged at least either between at least one pair of adjacent layers of the plurality of carbon fiber sheets or on a surface area of the plurality of carbon fiber sheets and configured to have a resistance area which has higher electric resistance than electric resistance of the carbon fiber sheet in a stacking direction and a conductive area which is capable of having electrical continuity in the stacking direction, wherein the resistance area and the conductive area are arranged in a surface direction orthogonal to the stacking direction. The plurality of carbon fibers sheets are bonded to each other by means of the adhesive resin in the surface direction in the conductive area and in an area corresponding to periphery of the conductive area. In areas other than the conductive area and the area corresponding to the periphery of the conductive area, the plurality of carbon fiber sheets are not bonded to each other by means of the adhesive resin.
Abstract:
A cone-shaped composite article may include an inner sublaminate containing at least four unidirectional plies having an inner stacking sequence with fiber angles of 0, 90, -45, and +45 degrees such that the inner laminate has a quasi-isotropic layup pattern at any location on the inner laminate. The cone-shaped composite article may also include an outer sublaminate containing at least four unidirectional plies having an outer stacking sequence that is a mirror image of the inner stacking sequence. Each one of the unidirectional plies may be continuous along a ply arclength wrapping 360 degrees around the cone-shaped composite article and may have opposing ply ends terminating at a ply seam.
Abstract:
The present disclosure provides copolymers useful in medical devices. For example, the disclosure provides copolymers comprising the polymerization product ester block, ether blocks and diisocyanates. In certain embodiments, the disclosure provides a medical copolymer for implantation comprising ester blocks and ether blocks, wherein: the ester blocks comprise a negative free energy transfer and the ether blocks comprise a positive free energy transfer, the ether and ester blocks are less than 1/10 the length of said copolymer, and, the blocks are distributed such that no domain of contiguous blocks possessing the same polarity of free energy transfer are less than 1/3 of the molecular weight of the copolymer. The disclosure further provides methods of making the aforementioned polymers, and medical devices comprising the polymers.