Abstract: A tubular structure including an outer tube an inner tube arranged within the outer tube and at least one chamber formed between the outer tube and the inner tube. The tubular structure additionally includes at least one self-healing material arranged in the chamber, wherein the self-healing material is configured to solidify and/or expand upon contact with a reacting material.

Abstract: This disclosure describes co-extruded multilayer articles including at least one continuous layer and one discontinuous layer, as well as systems and techniques for the manufacture of co-extruded multilayer articles. For example, a co-extruded multilayer article is described that includes a body having a plurality of layers, where a first layer of the plurality of layers is formed from a first material and is continuous along a longitudinal axis of the body, and a second layer of the plurality of layers is formed from a second material and is discontinuously co-extruded along the longitudinal axis.

Abstract: The invention relates to polyvinylidene fluoride (PVDF) copolymer compositions that have improved crosslinking efficiency and performance. The PVDF copolymer contains a high level (>14 and preferably greater than 16 wt %) of a fluorinated comonomer, and has a high molecular weight as measured by the melt viscosity at 230° C. and 100 sec?1 of 18 to 40 kpoise. The composition can be effectively cross-linked with a low level radiation (high cross-linking efficiency). The cross-linked composition is useful in high-temperature applications, such as automotive wire and cable, and heat shrink tubing.

Abstract: Adding silica particles having specified collective characteristics to a fluororubber formulation enhances direct adhesion between the fluororubber formulation and a copolymer upon curing. Specifically, as measured before being mixed into the fluororubber formulation, the silica particles have an average value of the product “(particle size)×(circularity)” that is 17.5 nm or higher and 500 ?m or lower. The silica particles may also have an average particle size of between 25.0 nm inclusive and 500 ?m inclusive, and an average circularity of 0.80 or higher. Alternatively, as measured after being incorporated into the fluororubber formulation and then cured, the silica particles have an apparent average value of the product “(particle size)×(circularity)” that is 32.0 nm or higher and 500 ?m or lower. The silica particles may also have an apparent average particle size of between 40.0 nm inclusive and 500 ?m inclusive as measured after being incorporated into the fluororubber formulation and then cured.

Abstract: There is provided a multilayer film comprising a starch layer and at least one other layer. The multilayer film has excellent barrier properties. The starch layer comprises a modified starch having a degree of substitution less than 1.5. Suitable other layers include polyolefins. The multilayer film finds use in packaging, particularly in packaging foodstuffs.

Abstract: The presently disclosed subject matter is generally directed to a packaging film constructed from water-dispersible and/or biodegradable compositions. Particularly, the disclosed film comprises a first layer constructed from one or more water-dispersible materials, such as water-dispersible paper. The film further comprises a second layer constructed from one or more biodegradable materials, such as poly(hydroxyalkanoate). The first and second layers can be constructed to form a packaging material used to enclose a wide variety of products, including liquids and moisture-sensitive solids. Advantageously, the disclosed film (and associated packaging materials) are dissolvable in water and/or biodegrade when exposed to landfill conditions and/or water.

Abstract: High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces. Polymers may be entrapped in pores of materials to provide a durable modification of the materials.

Abstract: The present invention provides novel packaging articles, e.g., food and beverage cans, having a novel coating composition applied to at least a portion of a surface thereon. In preferred embodiments, the coating composition includes at least a film-forming amount of a copolyester resin having a backbone that includes one or more soft segments and a plurality of hard segments. The copolyester resin preferably has a glass transition temperature from about from about 10° C. to about 50° C. The present invention also provides a method for making coated articles.

Abstract: Embodiments are directed to systems and methods for two or more cured composite assemblies that are bonded together to form a tubular composite structure, wherein each of the cured composite assemblies do not have a tubular shape. The tubular composite structure may form a spar for an aerodynamic component, for example. The two or more cured composite assemblies may comprise carbon or fiberglass composite materials or a combination of materials. Each of the cured composite assemblies may further comprise axial edges that are configured to be bonded to another of the cured composite assemblies, wherein the axial edges have a sloped shape. An adhesive agent may be applied on the axial edges for bonding two cured composite assemblies. Alternatively, or additionally, one or more fasteners may be used to attach the axial edges of at least two cured composite assemblies.

Abstract: Provided is a multilayered container including a polyester layer containing a thermoplastic polyester resin (X) and a polyamide layer containing a polyamide resin (Y), wherein the polyester layer is an innermost layer, and the polyamide layer is an intermediate layer. The polyamide resin (Y) has a constituent unit derived from a diamine and a constituent unit derived from a dicarboxylic acid. At least 70 mol % of the constituent units derived from a diamine are a constituent unit derived from a xylylenediamine, and at least 70 mol % of the constituent units derived from a dicarboxylic acid are a constituent unit derived from an ?,?-linear aliphatic dicarboxylic acid having from 4 to 20 carbons. When an overall thickness is 100%, the polyamide layer is present from a position of 5 to 35% from an inner surface, and a thickness of the polyamide layer is from 1 to 15%.

Abstract: A tubular structure for transporting heat transfer fluid including at least: i) a layer (1) in contact with the fluid including at least one thermoplastic polymer P1 that is semicrystalline with Tm1 greater than or equal to 160° C., as determined according to the standard 1 1357-3 (2013) or amorphous with Tg1 greater than or equal to 100° C., as determined according to the standard 1 1357-2 (2013), said layer (1) containing no fibers, ii) a layer (2) including at least: (a) a thermoplastic polymer P2 that is semicrystalline, in particular a polyamide with Tm2 greater than or equal to 170° C. or amorphous with Tg2 greater than or equal to 100° C., or a polyolefin with Tm greater than 100° C.; (b) optional continuous fibers, the polymer P2 being identical to P1 or different from P1 in which case the polymers P1 and P2 adhere at least partially to one another.

Abstract: Described herein is a sheet comprising: a multi-layer structure comprising: a plurality of layers including an uppermost layer and a lowermost layer, each of the plurality of layers having a molecular orientation that results in a stress value for each layer; wherein the stress value of at least two of the plurality of layers are non-zero and different from one another; and wherein the multi-layer structure has a net stress value that is less than the greater stress value of the plurality of layers.

Abstract: Disclosed herein is a device for reducing noise using a sound meta-material. The device for reducing noise includes a sound-absorbing layer configured to absorb noise generated from a sound source, a buffer layer configured to buffer an impact, and a meta-material panel layer disposed between the sound-absorbing layer and the buffer layer. The meta-material panel layer is configured with a unit cell formed by stacking one or more block cells, and one or more unit cells are disposed on a plane of the meta-material panel layer.

Abstract: Provided are a bracket for an anti-vibration device, and a method for manufacturing the same, in which increase of weight and peeling of a reinforcing portion are suppressed. A bracket (1) has: a reinforcing portion (20) extending in a surrounding direction of the surrounding portion (10), having ends (21) in both directions of the surrounding direction, and being fixed to an outer surface of the portion (10); and ribs (30) formed on an outer circumference of the portion (10) so as to span the ends (21) of the reinforcing portion (20) in the surrounding direction of the portion (10). The portion (10) and the ribs (30) are made of synthetic resin. A method for manufacturing the bracket (1) includes a step of injecting synthetic resin serving as the portion (10) and the ribs (30) into a mold cavity where a reinforcing member serving as the portion (20) is set.

Abstract: An easily tearable film includes polyamide resin components including more than 20 parts by mass and 70 parts by mass or less of a semi-aromatic polyamide resin A and less than 80 parts by mass and 30 parts by mass or more of an aliphatic polyamide resin B; wherein the semi-aromatic polyamide resin A is constituted of a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit; 60 mol % or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol % or more of the dicarboxylic acid-derived constituent units are derived from an ?,?-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; and the molar concentration of phosphorus atoms, the total molar concentration of alkali metal atoms and the total molar concentration of alkaline earth metal atoms, and Mn of the semi-aromatic polyamide resin satisfy predetermined relationships.

Abstract: Polymeric coating compositions and articles coated with the polymeric coating compositions are provided. The polymeric coating composition can include an ethylene-based polymer that exhibits desirable melting properties and molecular weight distribution. The polymeric coating composition can provide a thin coating layer on an article while still providing advantageous properties, such as seal strength.

Abstract: The invention relates to a three dimensional shaped article having an outer and inner surface, the outer surface comprising at least one fabric (100) of polyethylene fibers having a tensile strength of at least 1.5 GPa, the fabric is impregnated with an acrylic based thermoplastic material. The three dimensional shaped article may further comprise monolayers with unidirectional aligned fibers. The three dimensionally shaped article has an improved surface appearance which would therefore need little or no post treatment and has good adhesion to coatings and paints.

Abstract: The present invention refers to a composite material that comprises carbon fiber or sheet made from polyacrylonitrile (PAN) or lignin being indicated for the manufacture of several articles such as high resistance pressure cylinder. Said material presents several advantages such as, for example, to provide improved screening to the articles that comprise it. The referred composite comprises: a first inner layer of polytetrafluorethylene, covered by a second layer of high-density polyethylene, adhered to a third layer of composite containing carbon fiber or sheet made from polyacrylonitrile (PAN) or lignin immersed in cured epoxy resin from a polymeric matrix and a hardener; and a fourth outer layer of composite, comprising aramid fiber impregnated with a dilating fluid and cured epoxy resin from a polymeric matrix and a hardener.

Abstract: There is provided a decorative sheet having a three-dimensional effect by a tactile sense and a visual three-dimensional effect or texture and excellent in design properties. A decorative sheet (10) according to this embodiment is provided with a base material (1), an image design layer (2) provided on a front surface (1a) side of the base material (1), a transparent adhesive layer (3) provided on a front surface (2a) side of the image design layer (2), a transparent thermoplastic resin layer (4) provided on a front surface (3a) side of the transparent adhesive layer (3), and a surface protective layer (5) provided on a front surface (4a) side of the transparent thermoplastic resin layer (4).

Abstract: A preform configured to form a container. The preform includes a finish defining an opening and a top sealing surface configured to contact a closure to seal the opening closed. A body portion extends from the finish. A bottom portion is at an end of the preform opposite to the finish. A longitudinal axis of the preform extends through an axial center of the bottom portion. An oxygen barrier layer extends along the body portion to the bottom portion and across the bottom portion. A base layer includes an outer portion and an inner portion. The oxygen barrier layer is between the outer portion and the inner portion. The oxygen barrier layer extends along the body portion and the bottom portion.