B29K2995/0039

RESIN MOLDED BODY AND METHOD FOR PRODUCING RESIN MOLDED BODY

A resin molded body, includes: a polyolefin element including a crystalline region and an amorphous region; and a hydrophilic polymer contained in a region from a surface of the polyolefin element to part of the amorphous region located below the surface. Or, a method for producing a resin molded body, includes: preparing a polyolefin element including a crystalline region and an amorphous region; forming a coating of a hydrophilic polymer on a surface of the polyolefin element; and applying heat treatment to the polyolefin element on which the coating of the hydrophilic polymer is formed, wherein by applying the heat treatment, the coating of the hydrophilic polymer is immersed in a region from the surface to part of the amorphous region located below the surface.

Three-Dimensional Shaping Device
20240131791 · 2024-04-25 ·

A three-dimensional shaping device includes a stage, an ejection portion configured to selectively eject, as a shaping material, a first material containing a crystalline resin and a second material containing an amorphous resin to an upper side of the stage, a moving portion configured to relatively move the stage and the ejection portion, and a control unit. The control unit executes first stacking processing when a plurality of slice layers are stacked using the first material as the shaping material and executes second stacking processing when a plurality of slice layers are stacked using the second material as the shaping material. The first stacking processing includes first slice layer forming processing, first ejection stop processing, first temperature detection processing, and second slice layer forming processing, and the second stacking processing includes third slice layer forming processing, second ejection stop processing, first determination processing, and fourth slice layer forming processing.

CONTINUOUS COMPRESSION MOLDING MACHINES AND METHODS OF CONTINUOUS COMPRESSION MOLDING A CONSOLIDATED THERMOPLASTIC MATRIX COMPOSITE MATERIAL

Continuous compression molding machines (CCMMs) and methods of continuous compression molding a consolidated thermoplastic matrix composite material are disclosed herein. The CCMMs include a mold, a heat zone heating structure, a consolidation zone heating structure, and a stress relaxation zone heating structure. The CCMMs also include a press structure, a demold structure, and a supply structure. The methods include providing a thermoplastic matrix composite material (TMCM) that includes a thermoplastic material to a CCMM. During the providing, the methods also include heating the TMCM within a heat zone of the CCMM, cooling and consolidating the TMCM within a consolidation zone of the CCMM, relaxing stress within the TMCM within a stress relaxation zone of the CCMM, demolding the TMCM within a demold zone of the CCMM at a mold temperature that is greater than a glass transition temperature of the thermoplastic material, and periodically compressing the TMCM.

3D printing system for preparing a three-dimensional object with a surface melting section

A three-dimensional (3D) printing system for preparing an object made at least partially of an expanded polymer including: a printing device for transporting and depositing a strand of expanded polymer including a blowing agent onto a surface and a 3D movement device for adjusting the position of the printing device in a predefined matrix allowing deposit of the strand of expanded polymer at a predetermined time and precise position within the matrix, the printing device includes: a feed section, a transporting section, a surface melting section, and a terminal printing head section for depositing the expanded polymer strand onto the surface, and all of sections have the same inner diameter, and the surface melting section including a solid-state welding element, a laser beam, a generator of hot gas or liquid and/or a generator of heat.

Thermal switch based on polymer compound

The present invention relates to an article suitable to act as a thermal switch device, the article having a surface resistance of more than 10.sup.5 ohms and formed from a polymer composition comprising from 50 to 99.9 wt % relative to the total weight of the polymer composition, of a polymer being selected from an amorphous polymer having a glass transition temperature Tg, a semi-crystalline polymer having a melting temperature Tm or a mixture thereof, and from 0.1 to 50 wt % relative to the total weight of the polymer composition, of a conductive material, wherein the surface resistance of the article is divided by at least 10, preferably by at least 100, when said article is submitted for a determined period of time of less than 5 minutes to a temperature of switch i) ranging from Tg+10 C. to Tg+250 C. if the polymer composition comprises an amorphous polymer, or ii) ranging from Tm80 C. to Tm+250 C. if the polymer composition comprises a semi-crystalline polymer.

Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force

A process for manufacturing finished wire and cable having reduced coefficient of friction and pulling force during installation, includes providing a payoff reel containing at least one internal conductor wire; supplying the at least one internal conductor wire from the reel to at least one extruder; providing the least one extruder, wherein the at least one extruder applies an insulating material and a polymerized jacket composition over the at least one internal conductor wire, wherein the polymerized jacket composition comprises a predetermined amount by weight of nylon; and at least 3% by weight of a silica providing a cooling device for lowering the temperature of the extruded insulating material and the polymerized jacket composition and cooling the insulating material and the polymerized jacket composition in the cooling device; and, reeling onto a storage reel the finished, cooled, wire and cable for storage and distribution.

MULTIPLE AXIS ROBOTIC ADDITIVE MANUFACTURING SYSTEM AND METHODS
20190262986 · 2019-08-29 ·

A multiple axis robotic additive manufacturing system includes a robotic arm movable in six degrees of freedom. The system includes a build platform movable in at least two degrees of freedom and independent of the movement of the robotic arm to position the part being built to counteract effects of gravity based upon part geometry. The system includes an extruder mounted at an end of the robotic arm. The extruder is configured to extrude at least part material with a plurality of flow rates, wherein movement of the robotic arm and the build platform are synchronized with the flow rate of the extruded material to build the 3D part.

Manufacturing process for polymeric stents

Methods and systems of fabricating a polymeric stent are disclosed herein.

Method for producing expanded thermoplastic elastomer particles
10392488 · 2019-08-27 · ·

A process for production of expanded thermoplastic elastomer beads in the presence of a gaseous medium that surrounds thermoplastic elastomer beads. The process comprises a) an impregnating step, in which the gaseous medium has an impregnating temperature T.sub.a, and the absolute pressure of the gaseous medium is greater than ambient pressure, the thermoplastic elastomer beads impregnated with a blowing agent, b) an expanding step, in which the thermoplastic elastomer beads expand as they are exposed to a pressure reduction at a first expanding temperature T.sub.b, and c) optionally a fusing step, in which the expanded thermoplastic elastomer beads are fused together at a fusing temperature T.sub.c to form at least one shaped part.

OPTICAL LAMINATE, METHOD FOR PRODUCING SAME, POLARIZING PLATE, AND DISPLAY DEVICE
20190255820 · 2019-08-22 · ·

An optical layered body including: a substrate layer formed of a resin containing a crystallizable polymer A; and a first surface layer formed of a resin containing an amorphous polymer B, wherein a glass transition temperature TgA of the crystallizable polymer A and a glass transition temperature TgB of the amorphous polymer B satisfy TgB>TgA, a crystallization temperature TcA of the crystallizable polymer A and the glass transition temperature TgB of the amorphous polymer B satisfy TcA10 C.TgBTcA60 C., the first surface layer has a plane orientation coefficient P that satisfies P0.01, and a ratio of a thickness of the substrate layer relative to a total thickness of the optical layered body is 25% or more.