A surfboard having a core, a first elongate spring member located adjacent an upper side of the core, and a second elongate spring member located adjacent a lower side of the core, wherein the first elongate spring member extends substantially from a nose portion of the surfboard to a tail portion of the surfboard.

Provided in the embodiments of the present disclosure are a support sheet for supporting a flexible display screen, a flexible display screen and an electronic device. The flexible display screen support sheet includes a carbon fiber substrate and an epoxy resin adhesive. The carbon fiber substrate includes first carbon fibers in a first direction and a second carbon fibers in a second direction, and the first direction being different from and angled with the second direction.

The present invention is directed to an article, especially a door and a door component, such as a door facing (or door skin), having a pattern, preferably a woodgrain pattern. This invention also is directed to a method of making the door and the door component such as the door facing (or door skin) by inkjet printing of a pattern on the door facing (or door skin). The printing direction and ink droplets are provided to deliver a high quality image.

Building panels with a homogenous decorative surface having a wear layer comprising fibres, binders and wear resistant particles. A building panel including a surface layer and a core, the core including wood fibres, and the surface layer including a substantially homogenous mix of wood fibres, a binder and wear resistant particles, the substantially homogenous mix of wood fibres including natural resins.

The present invention relates to a phosphazene compound containing an ester group having a structure of formula (I). The present invention grafts ester groups to phosphazene compounds and makes terminal grafted hydroxyl and carboxyl groups reacted with polymer matrix, producing an improvement of flame retardancy and a reduction of dielectric constant at the same time when the phosphazene compound is introduced into polymer matrix. Since N and P atoms are directly bonded into the polymer matrix by a reaction rather than addition and combination means in the prior art, there is no reduced mechanical properties of the matrix due to the addition of flame retardants.

A seamless tubular liner for repairing an underground or surface pipe is disclosed, including circumferential wefts consisting of slivers comprising a plurality of staple fibers bundled together, the slivers adapted to elongate through disentanglement of the bundled staple fibers when the seamless tubular liner is subjected to an inflation pressure such that the diameter of the tubular liner is able to expand to accommodate variations of diameter of the pipe being repaired.

Curable prepregs possessing enhanced ability for the removal of gases from within prepregs and between prepreg plies in a prepreg layup prior to and/or during consolidation and curing. Each curable prepreg is a resin-impregnated, woven fabric that has been subjected to a treatment to create an array of openings in at least one major surface. Furthermore, the location of the openings is specific to the weave pattern of the fabric.

The present invention relates to a molding made of expanded bead foam, wherein at least one fiber (F) is partly within the molding, i.e. is surrounded by the expanded bead foam. The two ends of the respective fibers (F) that are not surrounded by the expanded bead foam thus each project from one side of the corresponding molding. The present invention further provides a panel comprising at least one such molding and at least one further layer (S1). The present invention further provides processes for producing the moldings of the invention from expanded bead foam or the panels of the invention and for the use thereof, for example as rotor blade in wind turbines.

A component of a vehicle structure is obtained by a hot forming operation on a hybrid panel having a sheet element of light alloy and a sheet of plastic material. The hybrid panel is hot formed by pressing it against a forming surface of a mould element by a pressurized gas or by a second mould element. Following this operation, the hybrid panel assumes a configuration corresponding to the forming surface, whereas the light alloy sheet element and the plastic material sheet constituting the hybrid panel adhere to each other following softening by heat of the plastic material. Before the hot forming step, a surface of said light alloy sheet element which must contact the plastic material sheet is subjected to a roughening treatment, thereby defining surface asperities between which the plastic material of the plastic material sheet is inserted when it is softened by heat.

The present invention provides a resin composition comprising a cyanate compound (A); and an epoxy resin (B) represented by general formula (1):

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wherein a plurality of R each independently represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, and an alkoxy group having 1 to 6 carbon atoms.