In one embodiment, a method to form a downhole element is disclosed, including weaving a continuous glass filament and a continuous degradable thermoplastic filament to form a commingled glass fiber. In another embodiment, a commingled glass fiber is disclosed, including a continuous glass filament, and a continuous degradable thermoplastic filament interwoven with the continuous glass filament. In another embodiment, a downhole element is disclosed, including a commingled glass fiber. The commingled glass fiber includes a continuous glass filament, and a continuous degradable thermoplastic filament interwoven with the continuous glass filament.

A multilayered polymer composite film includes a water-soluble polymer matrix and a plurality of fibers embedded within the water soluble polymer matrix. The fibers include a water insoluble polymer material and at least one of a non-polymeric hydrophobic therapeutic agent or a non-polymeric hydrophobic cosmetic agent incorporated in the water insoluble polymer material. The fibers have a rectangular cross-section, and extend the entire length of the multilayered polymer composite film.

A laundry bead molding mold is disclosed, including a first mold cavity and a second mold cavity which are separated from each other and could be filled with detergent or detergent additives to meet different washing demands. The first mold cavity has two opposite side walls at a certain angle, which could ensure the shape of the bead product is a preset shape. The mold could be used to mold a laundry bead having at least two cavities, and could obtain a multifunctional laundry bead, has a simple structure and a high yield of the formed bead. A laundry bead formed by the mold is also disclosed, including a plurality of beads, which facilitates the washing process. A laundry bead molding method is also disclosed.

An object of the present invention is to provide a shape supporting support material which can be efficiently removed after molding in addition manufacturing and an active energy ray-curable resin composition used for forming the support material. An active energy ray-curable resin composition containing the ionic monomer (A), the nonionic water-soluble monomer (B), the nonpolymerizable compound (C), and the photopolymerization initiator (D), and/or the polyfunctional monomer (E) is used. The support material can be thereby efficiently removed from the formed roughly modeled product. Furthermore, a three-dimensional modeled product having a non-contaminated surface and high molding accuracy can be obtained.

A method of making a blind hole in a wall of a multi-section tank during manufacture includes inserting a thin, flexible composite spacer ring in a hole in a composite material between mating parts of a soluble tool. The composite spacer ring is cured to the composite material during curing and maintains the hole between sections of the tank once completed.

A mold configuration for forming a pocket in a film comprising: a film support surface; a perimeter edge at said film support surface; wall surfaces inward of the perimeter edge defining a mold cavity; the wall surfaces including transition wall surfaces extending to a bottom wall surface; and a plateau surface inward of the perimeter edge. In one form, the perimeter edge includes sharp corner profile perimeter edge portions defining at least one sharp corner profile. A method of forming a pouch, includes using the disclosed mold configuration. A resultant pouch has a perimeter seal seam having at least one sharp corner profile.

A water-soluble packaging film according to the present invention is a water-soluble packaging film comprising a polyvinyl alcohol resin, and has, on a film surface, irregularities having a surface roughness (Ra) of 0.3 to 1 m and a maximum height (Rz) of 3 to 9 m.

A method of producing a three-dimensional shaped article includes a step of forming particle layers by arranging particles containing a material for forming a shaped article and particles containing a material having higher solubility in fluid than the material for forming the shaped article, a step of forming a stack by melting and stacking the particle layers, and a step of removing the material having higher solubility in the fluid than the material for forming the shaped article from the stack by dissolving the material having higher solubility in the fluid than the material for forming the shaped article in the fluid.

A water-soluble film contains a polyvinyl alcohol resin (A), and has a complete dissolution time (T) and a curl area percentage (S), wherein a product (TS) of the complete dissolution time (T) and the curl area percentage (S) satisfies the following expression (1):
1000(Complete dissolution time (T))(Curl area percentage (S))7000(1)
The water-soluble film satisfies contradictory property requirements, i.e., satisfactory solubility and curl suppressing property, for example, even if being formed by using an acid-modified PVA resin.

A microneedle includes a substrate, and projections which extend from a surface of the substrate. Each of the projections includes layers separated from each other in a direction in which the projection extends. The layers include a first layer which contains a polymer which is soluble in water and poorly soluble in oil and a second layer which contains a polymer that is soluble in oil. The first layer and the second layer are adjacent to each other and are formed in the order of the first layer and the second layer from the projection to the substrate.