B29K309/08

Fibre reinforcement of reactive foams obtained by a moulding foam method

The present invention relates to a molding made of reactive foam, wherein at least one fiber (F) is arranged partially inside the molding, i.e. is surrounded by the reactive foam. The two ends of the respective fiber (F) not surrounded by the reactive foam thus each project from one side of the corresponding molding. The reactive foam is produced by a mold foaming process. The present invention further provides a panel comprising at least one such molding and at least one further layer (S1). The present invention further provides processes for producing the moldings according to the invention from reactive foam/the panels according to the invention and also provides for the use thereof as a rotor blade in wind turbines for example.

Fiber reinforced aerogel insulation

A fiberglass reinforced aerogel composite may include coarse glass fibers, glass microfibers, aerogel particles, and a binder. The coarse glass fibers may have an average fiber diameter between about 8 μm and about 20 μm. The glass microfibers may have an average fiber diameter between about 0.5 μm and about 3 μm. The glass microfibers may be homogenously dispersed within the coarse glass fibers. The aerogel particles may be homogenously dispersed within the coarse glass fibers and the glass microfibers. The fiberglass reinforced aerogel composite may include between about 50 wt. % and about 75 wt. % of the aerogel particles. The binder bonds the coarse glass fibers, the glass microfibers, and the aerogel particles together.

Low-dielectric resin composition, low-dielectric resin/metal composite material and preparation method thereof, and electronic equipment

A resin composition comprises, based on 100% by weight of the resin composition: 45-70 wt % of a main resin, 20-45 wt % of a chopped glass fiber, 1-3 wt % of a toughening resin, 0.2-0.5 wt % of an unmodified glycidyl methacrylate, and 0-10 wt % of an auxiliaries. The main resin is selected from at least one of PBT resin and PPS resin. The chopped glass fiber has a dielectric constant of 4.0 to 4.4 at 1 MHz.

Selective placement of advanced composites in extruded articles and building components

Embodiments herein include extruded articles, building components and methods of making the same. In an embodiment, an extruded article is included. The extruded article can include a body member including a first portion comprising a first composition, the first composition comprising a polymer resin. The extruded body member can also include a second portion comprising a second composition different than the first composition. The second composition can include a polymer resin, fibers, and at least one component selected from the group consisting of at least 1% by weight particles and at least 5 phr impact modifier. Other embodiments are also included herein.

System and method for using a VOC free low radiant flux LED UV curable composition
11738481 · 2023-08-29 ·

The present invention generally relates to a system and method for using a volatile organic compound (VOC) free low radiant flux LED UV curable composition, and more particularly to unique and novel uses of the composition such as one or two or more of a fire retardant, clear coat, composite material, resin, top coat, improved holdout coating, a sealant coat, and combinations of the same.

Panel with paint ready surface

In a preferred embodiment, a composite panel with a smooth outer surface, ready for painting with or without addition of primer, may be created by constructing a panel layup assembly upon a mold, the panel layup assembly including a composite panel having a core and a resin formulation, and a release film between the mold and the composite panel, where a smooth release surface of the release film is in contact with the composite panel upon construction; initiating curing of the composite panel at a first temperature within a lowermost ten percent of a curing temperature range of the resin formulation; continuing curing of the composite panel at a second temperature above the lowermost ten percent of the curing temperature range; and completing curing of the composite panel at a third temperature below the second temperature.

Thermoplastic powder composition and reinforced three-dimensional object produced by 3D printing of such a composition

The present invention relates to a reinforced thermoplastic powder composition, comprising: at least one polyamide powder with a d50 of less than 100 μm, from 5% to 70% by weight of at least one glass fiber: with a l50 within the range from 50 to 200 μm, with an lmax of less than 450 μm, with a d50 within the range from 4 to 40 μm, with a form factor F: l50/d50 of between 5 and 15, and from 0.05% to 5% of a pulverulent flow agent with a d50 of less than 20 μm; with regard to the total weight of the composition. The present invention relates in particular to the use of said composition in 3D printing processes for manufacturing reinforced three-dimensional objects.

Method and device for cutting off an extrudate

A process unit and methods are disclosed. One process unit including a pultrusion unit having a pultrusion channel, with the pultrusion channel being limited by at least one shaping wall. The process unit further includes an extrusion unit having an extrusion channel and an opening for removing the extrudate out of the extrusion channel, a cutting unit having a moving cutting element for cutting off the extrudate with the moving cutting element, and a conveying device for conveying a raw extrudate from the pultrusion unit into the extrusion unit. The cutting unit comprises a component that can be caused to move in a rotational manner and the component is mechanically coupled to the cutting element by a mechanical coupling device, such that the rotational movement of the component determines the movement of the cutting element.

Method for preparation of a moulded composite from a bulk moulding compound

A bulk moulding compound comprising one or more cyanate ester, a catalyst, a filler and reinforcement fibres is provide, whereby the one or more cyanate ester is independently selected from a difunctional cyanate ester compound and/or a polyfunctional cyanate ester and mixtures of these cyanate esters. Furthermore, the catalyst is independently selected from the group consisting of 4,4′ methylene-bis(2,6-diethylaniline) (M-DEA), 4,4′-methylene-bis(3-chloro-2,6-diethyl¬aniline) (M-CDEA), aluminum(III)acetylacetonate, and mixtures thereof.

Method for manufacturing a wind turbine blade and an apparatus for manufacturing a wind turbine blade
11745446 · 2023-09-05 · ·

A method for manufacturing a wind turbine blade includes the use of an apparatus having an engagement part. The engagement part has: a support element having a first support edge and a second support edge, a belt extending around the support element and forming a primary engagement edge of the engagement part along the first support edge of the support element. The method includes: providing one or more pre-shaped elements, including a first pre-shaped element, in a first element position, positioning the engagement part in a first position, moving the support element in a first direction with a first velocity to extend underneath the first pre-shaped element, and at the same time moving the belt relative to the support element around the first support edge in a primary direction from below the first support edge to above the first support edge with a primary velocity.