B29C70/68

Method for producing fiber-reinforced plastic components

Disclosed is a method for producing components from fiber-reinforced thermoplastic on the basis of fiber tapes impregnated with matrix material. The method includes manufacturing a multitude of semi-finished products, each of which has a plurality of non-consolidated layers of fiber tapes. The semi-finished products are placed in a consolidation device in such a way that the semi-finished products are in direct contact with one another. The semi-finished products are then consolidated using the consolidation device and the semi-finished products are at least partially joined to one another during the consolidation process. The joined semi-finished products are then cut apart using a cutting device.

Method for producing fiber-reinforced plastic components

Disclosed is a method for producing components from fiber-reinforced thermoplastic on the basis of fiber tapes impregnated with matrix material. The method includes manufacturing a multitude of semi-finished products, each of which has a plurality of non-consolidated layers of fiber tapes. The semi-finished products are placed in a consolidation device in such a way that the semi-finished products are in direct contact with one another. The semi-finished products are then consolidated using the consolidation device and the semi-finished products are at least partially joined to one another during the consolidation process. The joined semi-finished products are then cut apart using a cutting device.

Method for Preparing a Composite Product

A method is provided for preparing a composite product, the method comprising: forming a core structure having a plurality of layers, each layer being build by an additive manufacturing process; wherein the core structure has a shell substantially enclosing an internal chamber of the core structure, wherein the shell is fluid-impermeable, and wherein the outer surface of the shell has a predefined shape; introducing a fluid into the chamber of the core structure; arranging the core structure and reinforcement fibers in a mould, wherein the mould is arranged to accommodate the core structure including the reinforcement fibers, and wherein the reinforcement fibers and the outer surface of the shell are arranged in contact with each other; providing the reinforcement fibers and a resin on the outer surface of the shell of the core structure; and solidifying the resin to form the composite product inside the mould at a moulding pressure P.sub.m, while controlling the fluid pressure P.sub.F of the fluid in the core structure.

METHOD FOR IN-SITU DIFFERENTIAL MELTING OF POLYMERS AND PARTS FORMED THEREFROM

A method for forming a composite part involves forming a layup comprising (a) preforms/flat form-factor feedstock, either of which includes a plurality of fibers and a matrix precursor, and (b) a differential-melt polymer. The matrix precursor and the differential-melt polymer differ as to at least one of thermal properties and rheological properties. The layup is subjected to controlled application of heat and pressure to melt the matrix precursor and differential-melt polymer. The polymers are then cooled to form a composite part that displays properties attributable to all the constituents. As a function of a variety of factors, the resulting part can be homogenous or heterogenous, and the properties can be localized or global throughout the part.

METHOD FOR IN-SITU DIFFERENTIAL MELTING OF POLYMERS AND PARTS FORMED THEREFROM

A method for forming a composite part involves forming a layup comprising (a) preforms/flat form-factor feedstock, either of which includes a plurality of fibers and a matrix precursor, and (b) a differential-melt polymer. The matrix precursor and the differential-melt polymer differ as to at least one of thermal properties and rheological properties. The layup is subjected to controlled application of heat and pressure to melt the matrix precursor and differential-melt polymer. The polymers are then cooled to form a composite part that displays properties attributable to all the constituents. As a function of a variety of factors, the resulting part can be homogenous or heterogenous, and the properties can be localized or global throughout the part.

Thermoplastic polymer composition and molded article

The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block composed of a conjugated diene unit having 40% by mole or more of 1,2-bonds and 3,4-bonds in total, or a hydrogenated product of the block copolymer (provided that a thermoplastic polymer composition containing 1 part by mass or more of a polyvinyl acetal resin is excluded). This thermoplastic polymer composition is able to be bonded with a ceramic, a metal or a synthetic resin without requiring a primer treatment, and has excellent flexibility, mechanical characteristics, moldability, heat resistance and storage stability.

Thermoplastic polymer composition and molded article

The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block composed of a conjugated diene unit having 40% by mole or more of 1,2-bonds and 3,4-bonds in total, or a hydrogenated product of the block copolymer (provided that a thermoplastic polymer composition containing 1 part by mass or more of a polyvinyl acetal resin is excluded). This thermoplastic polymer composition is able to be bonded with a ceramic, a metal or a synthetic resin without requiring a primer treatment, and has excellent flexibility, mechanical characteristics, moldability, heat resistance and storage stability.

Silane-terminated adhesive for joining joints in the naval field
10745600 · 2020-08-18 · ·

An adhesive which includes at least one silane-functional polymer P; at least one catalyst for crosslinking silane-functional polymers, the catalyst being selected from the group including organo-titanate, organo-zirconate, and organo-aluminate; at least one base; and at least one adhesive selected from alkoxy mercaptosilane and amino alkoxysilane, for filling wood joints. The adhesive filled into the joints is preferably sanded after the curing process. The adhesive exhibits a high UV stability and a stability against warm humid climates. The adhesive is therefore suitable for naval applications in particular, such as in the construction of boats and ships. The adhesive can be formulated so as to be black, white, or gray for example.

METHOD FOR OPERATING AN APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS
20200254521 · 2020-08-13 · ·

Method for operating an apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy source, comprising the steps: Arranging at least one prefabricated product (12) in a build plane (11), Layerwise applying build material (3) in a manufacturing region (16) that is delimited by at least a first side (14) of the prefabricated product (12) or the build plane (11), particularly bottom sides, and at least one second side (15) of the prefabricated product (12), particularly a side wall of the prefabricated product (12) Selective consolidation of at least one consolidation zone in the manufacturing region (16) dependent on a geometry of an object (2) to be additively built on the prefabricated product (12) Repeating the layerwise application and consolidation until the object (2) is finished

COLLAPSIBLE SHAPE-RETAINING CONTAINERS
20200255183 · 2020-08-13 ·

Collapsible containers and a method of their manufacture are disclosed herein. The collapsible containers have one or more collapsible wall sections and a stiff upper and lower tier. The wall sections have living hinges and three or more tiers between the hinges. A thermoplastic elastomer layer may join separately made portions of the container together. The containers may be made by molding and overmolding. The containers include inter alia bulk liquid containers, jugs, tubs, baskets, bottles, and food containers. The method of manufacturing includes placing a container component and a matching container body comprising a stiff first tier, a stiff second tier, and a collapsible wall section in a mold; assembling the container body with the container component to close one end of the container body; and overmolding a thermoplastic layer around the container body and the container component.