Molded polymer foam articles are described as having a novel foam structure. The polymer foam articles include a continuous polymer matrix defining a plurality of pneumatoceles therein which is present throughout the entirety of the article. The surface region is further characterized as having compressed pneumatoceles. The novel foam structure is achieved even when molding polymer foam articles comprising a shape and volume wherein a sphere having a diameter between 2 cm and 1000 cm would fit within the article in at least one location without protruding from a surface of the article, and the article further has a total volume of more than 1000 cm.sup.3. Methods of making a stabilized molten polymer foam, and of making a molded polymer foam article using the stabilized molten polymer foam are also described.

Provided is a foamable polyamide composition comprising a) at least one polyamide comprising at least one carboxylic group; b) at least one thermoplastic rubber; and c) at least one compound having at least one isocyanate group; and optionally d) at least one filler and e) at least one additive.

Molded polymer foam articles are described as having a novel foam structure. The polymer foam articles include a continuous polymer matrix defining a plurality of pneumatoceles therein which is present throughout the entirety of the article. The surface region is further characterized as having compressed pneumatoceles. The novel foam structure is achieved even when molding polymer foam articles comprising a shape and volume wherein a sphere having a diameter between 2 cm and 1000 cm would fit within the article in at least one location without protruding from a surface of the article, and the article further has a total volume of more than 1000 cm.sup.3. Methods of making a stabilized molten polymer foam, and of making a molded polymer foam article using the stabilized molten polymer foam are also described.

A container (1) for storing a bodily fluid, for example a blood collection tube (2), comprising: an interior space (4) configured to store the bodily fluid; and a wall (5) enveloping the interior space, wherein a surface of the wall (5) facing the interior space (4) of the container (1) forms a contact surface (6), wherein at least a portion of the contact surface (6) is provided with a primer coating (7), wherein the primer coating (7) is formed from a perfluorophenyl azide (PFPA) including an azide group (9) and a functional group (10), and wherein a co polymer made from poly (N-vinylamine-co-N-vinyl acetamide) is bonded to the functional group (10) of the primer coating (7). The invention also relates to a method for coating a contact surface (6) of a container (1) for storing a bodily fluid.

An example of a multi-fluid kit for three-dimensional (3D) printing includes an elasticity agent to be applied to at least a portion of a build material composition during 3D printing and a fusing agent to be applied to the at least the portion of the build material composition during 3D printing. The elasticity agent includes a plasticizer having: a formula (I): wherein n is an integer ranging from 3 to 8; or a formula (II): wherein m is an integer ranging from 3 to 8. The fusing agent includes an energy absorber.

A gas barrier film including a substrate film containing a resin, and a gas barrier layer that has oxygen barrier properties and is in contact with at least one surface of the substrate film, a surface of the gas barrier layer has a flat portion, and a plurality of protrusions that protrude from the flat portion. The number of protrusions that satisfy the following formula (1) is 0 to 200 per mm.sup.2, and the number of protrusions that satisfy the following formula (2) is 20 or more per mm.sup.2; d×2≤f(1); and 0.2≤f<d×2(2), where d represents a thickness (μm) of the gas barrier layer, and f represents a height (μm) of each of the plurality of protrusions.

A partially separated fiber bundle includes separation-processed sections and not-separation-processed sections that are alternately formed along the lengthwise direction of a fiber bundle that includes a plurality of single fibers, wherein the separation-processed sections include a plurality of divided fiber bundles that have been divided by separation processing. The partially separated fiber bundle is characterized in that the numbers of single fibers of the divided fiber bundles in the separation-processed section are nonuniform.

According to the present invention, there is provided a prepreg characterized by including a reinforcing fiber substrate composed of a reinforcing fiber, and an epoxy resin composition with which the reinforcing fiber substrate is partially or wholly impregnated, in which the epoxy resin composition includes, as an essential component, an epoxy resin, an amine-based curing agent, and a polyamide particle, the epoxy resin composition includes, as an optional component, an epoxy resin-soluble thermoplastic resin; and an epoxy group is introduced to the surface of the polyamide particle, and/or at least one of the epoxy resin, the amine-based curing agent, and the epoxy resin-soluble thermoplastic resin, included in the epoxy resin composition, partially permeates into the polyamide particle.

A polymer material suitable for three-dimensional printing that may include at least one of polyether block amide, thermoplastic polyurethane, and thermoplastic olefin. The polymer is formed through chemical precipitation forming a precipitated pulverulent polymer which possesses increased operating window characteristics selected from the group consisting at least one of a wider than typical range between and among the melting and recrystallization temperatures, a larger enthalpy upon melting, and a low volumetric change during recrystallization.

A thermoplastic elastomer composition for overmolding a predominantly polyamide substrate, a method for the preparation of an overmolded article, and an overmolded article having a layer of thermoplastic elastomer is provided. The thermoplastic elastomer composition comprises a thermoplastic vulcanizate, an olefinic block copolymer, and a maleated functionalized polyolefin copolymer. The method for the preparation of the overmolded article comprises heating the thermoplastic elastomer composition followed by applying the heated composition to at least a portion of the predominantly polyamide substrate.