A structure, such as a tabletop, may be constructed from blow-molded plastic. The tabletop may include an upper surface, a lower surface, and a hollow interior portion disposed between the upper surface and the lower surface. A lip may extend downwardly relative to the lower surface of the tabletop, and the lip including an outer surface and an inner surface. One or more supports may be disposed in the inner surface of the lip, and one or more joints may be disposed in the inner surface of the lip. A joint may be disposed between adjacent supports, and a distal portion of the lip may include a compression edge. A lower portion of the supports may contact the compression edge, and/or a lower portion of the joints may contact the compression edge.

The present disclosure provides a light curing non-transparent material for 3D printing and a preparation method thereof, a 3D printed product and a 3D printer. The light curing non-transparent material for 3D printing provided by the present disclosure can be used to print non-transparent 3D printed products without adding white pigments such as white pigments powder, and therefore has the characteristic of high stability, and also ensures fluency of the 3D printing process, good quality of the 3D printed products, as well as good performances of the 3D printer that containing light curing non-transparent material for 3D printing.

A composite structure that includes a multi-layer laminate including a plurality of layers of material, and at least one crack barrier layer extending within the plurality of layers of material. The multi-layer laminate is folded to define a first web region and a second web region in a face-to-face relationship, and a folded tip region defined between the first web region and the second web region. The at least one crack barrier layer is configured to restrict crack propagation from spreading through the plurality of layers of material in the folded tip region.

The present invention relates to a polylactic acid resin composition and a molded product using same. Since the polylactic acid resin composition according to the present invention has excellent environmental friendliness and biodegradability, has excellent heat resistance characteristics due to high heat deformation temperature (HDT), and may be injection molded within a commercially reasonable cycle time due to high crystallinity and crystallization rate, it is suitable for the preparation of a molded product.

Disclosed is a friction-reducing and anti-wear composite material for a wading kinematic pair and a method of preparing the same. The friction-reducing and anti-wear composite material is prepared from carbon fiber (CF) among inorganic fillers, polyimide (PI) and polyether ether ketone (PEEK). These three materials are wet-mixed, dried and placed in a mold followed by curing by a heat press. The cured product is cooled and demolded to obtain the CF/PI/PEEK friction-reducing and anti-wear composite material for a wading kinematic pair. Tribological properties of the PEEK material are enhanced due to synergistic effect arising from hybrid organic-inorganic filling. The friction-reducing and anti-wear composite material provided in the invention has significantly reduced friction coefficient and wear volume loss under the seawater environment.

Preform assembly for blow moulding a container, comprising at least a first and a second perform, wherein the first perform is positioned inside the second perform before blow moulding the performs into the container, wherein each perform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm.

A resin composition useful for making an inside door handle with a skin-core structure made by using co-injection, an inside door handle manufactured using the resin composition, and a method for manufacturing such a door handle are provided herein.

Thermally conductive compositions include from about 20 wt. % to about 80 wt. % of a polycarbonate polymer, from about 0.5 wt. % to about 30 wt. % of an impact modifier, and a thermal conductivity modifier. The thermal conductivity modifier includes from about 0.5 wt. % to about 10 wt. % of a high density polyethylene polymer, from about 0.5 wt. % to about 10 wt. % of a maleic anhydride type copolymer, or from about 0.01 wt. % to about 10 wt. % of an acid component. In some aspects the thermally conductive compositions have a notched Izod impact strength of at least about 30 J/m, a through-plane thermal conductivity of at least about 0.4 W/mK and/or an in-plane thermal conductivity of at least about 1.0 W/mK. Methods for making the compositions and articles formed according to the methods are also described.

A multilayer tube for guiding fuel fluid or brake fluid. The multilayer tube comprises an outer protection layer, a barrier layer radially within the outer protection layer, an intermediate layer radially within the barrier layer, and an inner layer radially within the intermediate layer. At least two of the layers are co-extruded layers. Each of the barrier layer and the inner layer comprises a partially aromatic polyamide.

An epoxy dual cure resin useful for additive manufacturing of three-dimensional objects includes:(i) a photoinitiator; (ii) monomers and/or prepolymers that are polymerizable by exposure to actinic radiation or light; (iii) optionally, a light absorbing pigment or dye; (iv) an epoxy resin; (v) optionally, but in some embodiments preferably, an organic hardener co-polymerizable with the epoxy resin; (vi) optionally but preferably a dual reactive compound having substituted thereon a first reactive group reactive with said monomers and/or prepolymers that are polymerizable by exposure to actinic radiation or light, and a second reactive group reactive with said epoxy resin (e.g., an epoxy acrylate); (vii) optionally a diluent; (viii) optionally a filler; and (ix) optionally, a co-monomer and/or a co-prepolymer. Methods of using the same in additive manufacturing are also described.