A polymer composition comprises a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A molded article comprises at least one wall defining a cavity, the wall having an opening therein permitting access to the cavity. The wall comprises a polymer composition comprising a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A method for molding a polymer composition is also provided.

A polymer composition comprises a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A molded article comprises at least one wall defining a cavity, the wall having an opening therein permitting access to the cavity. The wall comprises a polymer composition comprising a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A method for molding a polymer composition is also provided.

In order to provide a thermally conductive polymer based filament that may be printed using additive manufacturing techniques, a composition includes a thermoplastic polymer and/or elastomer that is soft and pliable, a polar polymeric thermoplastic, and a thermally conductive filler. The composition includes from 15 to 80 weight percentage of a thermoplastic polymer and/or a thermoplastic elastomer, from 20 to 85 weight percentage of a thermally conductive filler, and from 0 to 25 weight percentage of a thermoplastic polymer having polarity on a main chain of a molecule that results in a dipole moment. The thermoplastic polymer and/or the thermoplastic elastomer has a combined Notched Izod impact strength greater than or equal to 300 J/m and a flexural modulus less than 3 GPa. The filler has an intrinsic thermal conductivity greater than or equal to 1 W/m-K. The composition is characterized by a thermal conductivity of at least 0.75 W/m-K and an Izod notched impact strength of at least 100 J/m.

In order to provide a thermally conductive polymer based filament that may be printed using additive manufacturing techniques, a composition includes a thermoplastic polymer and/or elastomer that is soft and pliable, a polar polymeric thermoplastic, and a thermally conductive filler. The composition includes from 15 to 80 weight percentage of a thermoplastic polymer and/or a thermoplastic elastomer, from 20 to 85 weight percentage of a thermally conductive filler, and from 0 to 25 weight percentage of a thermoplastic polymer having polarity on a main chain of a molecule that results in a dipole moment. The thermoplastic polymer and/or the thermoplastic elastomer has a combined Notched Izod impact strength greater than or equal to 300 J/m and a flexural modulus less than 3 GPa. The filler has an intrinsic thermal conductivity greater than or equal to 1 W/m-K. The composition is characterized by a thermal conductivity of at least 0.75 W/m-K and an Izod notched impact strength of at least 100 J/m.

A responsive material having an elastomeric matrix in which ferromagnetic particles are dispersed so as to have a predetermined magnetization pattern which, when exposed to an external magnetic field, changes the shape of the responsive material from an initial shape to a predetermined transformed shape dictated by the magnetization pattern. An initial shape of the responsive material is formed by direct ink printing while applying magnetic fields to a dispensing nozzle to align the particles and gives rise to the desired magnetization pattern.

A responsive material having an elastomeric matrix in which ferromagnetic particles are dispersed so as to have a predetermined magnetization pattern which, when exposed to an external magnetic field, changes the shape of the responsive material from an initial shape to a predetermined transformed shape dictated by the magnetization pattern. An initial shape of the responsive material is formed by direct ink printing while applying magnetic fields to a dispensing nozzle to align the particles and gives rise to the desired magnetization pattern.

A method for forming an annealed thermoplastic tape is disclosed. The method includes supplying continuous fibers to an extrusion device, supplying a thermoplastic feedstock to the extrusion device, wherein the feedstock comprises a thermoplastic polymer, pre-heating, tensioning, spreading, and flattening the continuous fibers, extruding the continuous fibers and the feedstock within an impregnation die to form an extrudate in which the continuous fibers are embedded with a matrix of the thermoplastic polymer while under continuous tension and heat, and maintaining the continuous tension on the extrudate until cooled to a solid thermoplastic tape. The resulting annealed thermoplastic tape is formed of a plurality of unidirectional fibers, and a thermoplastic resin.

A method for forming an annealed thermoplastic tape is disclosed. The method includes supplying continuous fibers to an extrusion device, supplying a thermoplastic feedstock to the extrusion device, wherein the feedstock comprises a thermoplastic polymer, pre-heating, tensioning, spreading, and flattening the continuous fibers, extruding the continuous fibers and the feedstock within an impregnation die to form an extrudate in which the continuous fibers are embedded with a matrix of the thermoplastic polymer while under continuous tension and heat, and maintaining the continuous tension on the extrudate until cooled to a solid thermoplastic tape. The resulting annealed thermoplastic tape is formed of a plurality of unidirectional fibers, and a thermoplastic resin.

Magnetic fiber structures include a fiber and a plurality of permanent magnet particles carried by the fiber.

Magnetic fiber structures include a fiber and a plurality of permanent magnet particles carried by the fiber.