B29C45/0005

Two-part composite scope

A method of producing a rifle scope and a rifle scope including a conical objective bell, a main tube, and a connector. The objective bell is made of composite materials and increasing in diameter as the bell extends distally from its proximal to its distal end, with the proximal end being adjacent to the distal end of the main tube. The main tube, also constructed of composite materials, is a hollow cylinder. The connector is positioned about the distal end of the main tube with an exterior surface that conforms and is adhered to the interior surface of the proximal end of the objective bell and the interior surface of the distal end of the main tube, thereby joining together the objective bell and the main tube.

INJECTION-MOLDED ARTICLE AND METHOD FOR MANUFACTURING SAME

This injection-molded article is an injection-molded article using a cellulosic fiber composite resin, including: a resin insert piece including a colorant or a cellulose fiber; a first region formed of the cellulosic fiber composite resin; and a second region formed along a weld line of the cellulosic fiber composite resin extending from the resin insert piece, in which the first region and the second region have different color tones.

METHOD FOR MANUFACTURING FIBER REINFORCED RESIN MOLDED ARTICLE, AND MANUFACTURING DEVICE THEREOF
20210299919 · 2021-09-30 · ·

Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively reducing the occurrence of a preform with poor resin impregnation, and such a manufacturing device thereof. After it is detected that a predetermined amount (the same amount) of resin has been individually poured into a plurality of cavities provided in a mold, the fiber layers of preforms are impregnated (compressively filled) with resin. Pressure sensors for detecting a resin injection amount are used. When closing runners, a small gap is formed in the runners.

Expansion reservoir of polypropylene with glass fibers

The present invention relates to a container, preferably a cooling fluid expansion reservoir prepared from a thermoplastic composition comprising from 95-70 wt. % based on the weight of the thermoplastic composition of a polypropylene composition having a total amount of comonomer of at most 3 wt. % based on the weight of the polypropylene composition and comprising a random propylene copolymer having a comonomer content from 0.2 to 5 wt. % based on the weight of the random propylene copolymer and the random propylene copolymer having a melt flow index of at most 0.7 g/10 min determined in accordance with ISO 1133 (2.16 kg, 230° C.), from 5-30 wt. % based on the weight of the thermoplastic composition of reinforcing fibres, from 0-5 wt. % based on the weight of the thermoplastic composition of additives.

Method for producing a shaped bar from fiber composite material

A method for producing a shaped bar from fiber composite material uses a bonding tool which has a heating-up portion. The method includes the steps that a number of fiber tapes provided with a thermoplastic matrix are fed in parallel to the bonding tool, are brought together and heated and bonded in the heating-up portion to form a fiber cord. The fiber cord is subsequently placed by the bonding tool directly into a processing tool or a depositing device designed to place the fiber cord into the processing tool.

PROCESS FOR MANUFACTURING COMPOSITE ARTICLES

The present invention relates to the use of thermoplastic polymer compositions for impregnating reinforcing materials in the form of fabric or industrial fabrics for the manufacture of composite materials. The field of the invention is that of composite materials as well as molding/consolidation processes and obtained parts. The invention more particularly relates to a method of manufacturing a composite article by injection molding comprising at least the steps of introducing at least one reinforcement fabric into a preheated mold, partial closure of the mold, a temperature rise step of the mold, optionally a step of maintaining the temperature of the mold before injection of a thermoplastic polymer composition, a step of injecting a thermoplastic polymer composition into the mold, a step of mold closure to the final part thickness allowing the flow of the resin through the reinforcing fabric, a cooling step and a recovery step of the obtained composite article.

Fluorinated copolymer composition

A fluorinated copolymer composition includes a thermoplastic resin A and a fluorinated elastomer B dispersed within thermoplastic resin A. Thermoplastic resin A has a shear stress (τ.sub.A) of greater than 0.11 MPa when measured with a capillary rheometer at a shear rate of 243 sec.sup.−1 and at 360° C. in accordance with ASTM D3835. Fluorinated elastomer B dispersed within thermoplastic resin A has an average dispersed particle size of less than 50 μm.

METHOD FOR THE PRODUCTION OF PLASTIC MOULDED PARTS
20210187807 · 2021-06-24 ·

A method is described for producing fibre-reinforced plastic moulded parts, wherein endless fibre strands are fed by a fibre braking device and/or cut fibres via a gravimetric metering device, and a plastic material to be melted, by a volumetric metering device are fed to a single-screw plasticizing unit. Plastic material which is molten and is mixed with fibre material is injected into a moulding tool by an injection stroke of the plasticizing screw. According to the application, the ACTUAL mass flow of the plastic material is calculated from the ACTUAL volume flow of the plastic material and from the ACTUAL mass flow of the fibre material. The ACTUAL mass flow of the plastic material is compared to a TARGET mass flow of the plastic material, and the rotation speed n.sub.d of the rotary drive of the metering element of the metering device is adapted.

FLOOR PANEL FOR AN AIRCRAFT OR SPACECRAFT, AIRCRAFT OR SPACECRAFT, AND METHOD FOR PRODUCING A FLOOR PANEL
20210285238 · 2021-09-16 ·

A floor panel for an aircraft or spacecraft. The floor panel has a panel-like portion and an additional structure. A first side of the panel-like portion forms part of a floor surface in the aircraft or spacecraft. The additional structure is connected to the panel-like portion on a second side of the panel-like portion that is opposite the first side. The panel-like portion and the additional structure each comprise a matrix material formed by a thermoplastic material. Endless reinforcing fibers are embedded in the matrix material of the panel-like portion. Discontinuous reinforcing fibers are embedded in the matrix material of the additional structure. An aircraft or spacecraft may have a floor area which is formed by a planar arrangement of floor panels of this type. The method for producing a floor panel for an aircraft or spacecraft is provided.

INJECTION MOLDED HOSE CONNECTIONS FOR BLOW MOLDED TUBES
20210285582 · 2021-09-16 · ·

A hose cell assembly system for fabricating hoses with integrated hose connections is disclosed. The hose cell assembly system includes an injection mold; and an injection molding machine configured to form an integrated hose connection onto an end of a plastic tubing using an injection molding process using the injection mold, where the plastic tubing is formed by a blow molding process.