An integrating sphere includes twelve pentagonal spherical shells and twenty hexagonal spherical shells. The hexagonal spherical shell includes a first circular spherical shell having a first diameter and six first auxiliary spherical shells formed by cutting the first circular spherical shell. The pentagonal spherical shell includes a first circular spherical shell having the first diameter and five second auxiliary spherical shell formed by cutting a second circular spherical shell having a second diameter.

The invention disclosed herein is an automotive acoustic panel including a porous sound-absorption material made from a polymer and an expanded perlite. One or more silane compounds may be coupled or coated onto the expanded perlite while a coupling agent and a chemical foaming agent may additionally be added to the automotive acoustic panel.

The invention disclosed herein is an automotive acoustic panel including a porous sound-absorption material made from a polymer and an expanded perlite. One or more silane compounds may be coupled or coated onto the expanded perlite while a coupling agent and a chemical foaming agent may additionally be added to the automotive acoustic panel.

Plant (2) for the production of slabs made of composite stone material from a mix (M) containing granules of stone or ceramic or glass material and a binder, comprising at least one temporary support or mould (S), a distributor for the mix (M) designed to distribute a layer of mix (M) on the temporary support or mould (S), a station (4) for performing compaction by means of vacuum vibro-compression of the mix (M) arranged on the temporary support or mould (S) and a station for hardening the mix (M) so as to form the finished slabs. The plant (2) comprises a device (1) positioned downstream of the distributor and upstream of the compaction station (4) and comprising means (16) which act on the top surface of the mix (M) for pre-compaction and levelling of the mix (M) arranged on the temporary support or mould (S). The invention also relates to a method for the production of slabs of composite stone material from a mix (M).

A compression moulding tool for manufacturing a fibrous pulp tray having a floor portion and walls extending from the floor portion. The tool comprises a first female mould element comprising a plurality of first recessed portions, a water permeable filter arranged in the first female mould element and configured to follow the surface of the female mould element, a second female mould element comprising a plurality of second recessed portions at locations corresponding to the first recessed portions and smaller than the first recessed portions, and a male mould element configured to press against the first and second female mould elements to compress a fibrous pulp product located therebetween, the male mould element having a surface profile free from macroscopic features at locations corresponding to the first and second recessed portions of the first and second female mould.

The invention disclosed herein is an automotive acoustic panel including a porous sound-absorption material made from a polymer and an expanded perlite. One or more silane compounds may be coupled or coated onto the expanded perlite while a coupling agent and a chemical foaming agent may additionally be added to the automotive acoustic panel.

A method for recycling prepreg materials including the steps of: a) providing at least one prepreg material including a first thermosetting polymer resin, partially crosslinked, and a weave including fibers, b) applying a vitrimerization reaction mixture to the at least one prepreg material, c) placing the at least one prepreg material coated with the vitrimerization reaction mixture on a mold of a predefined shape, d) applying a thermocompression to the at least one prepreg material at a temperature (T1) greater than or equal to the glass transition temperature (Tg) of the first resin, so as to activate the reaction between the vitrimerization reaction mixture and the thermosetting polymer leading to the formation of a vitrimer polymer and the transformation of the at least one prepreg material into a vitrimer composite material of the predefined shape.

The present disclosure concerns a molding apparatus including: a first thermally conductive flange and a second thermally conductive flange, said first and second thermally conductive flanges delimiting a cavity configured to receive thermoplastic pre-impregnated textiles, a mold thermally conductive and thermoregulated by a heat transfer fluidcomprising an upper impression and a lower impression, said upper and lower impressions being configured to receive said first and second thermally conductive flanges.

There is disclosed a method of manufacturing a composite component. A preform for the component is laid-up on a lay-up tool so that a first surface of the preform conforms to a lay-up profile of the tool. The preform is transferred to a forming tool comprising opposing first and second forming surfaces, each having a near net shape profile corresponding to a respective side of the component. The preform is formed in the forming tool to a near net shape of the component. The preform has a preform bulk in excess of the near net shape of the component prior to forming, and the lay-up profile is offset relative to the near net shape profile of the first forming surface to accommodate a proportion of the preform bulk. Accordingly, both the first surface and an opposing second surface of the preform displace during forming to conform to the respective near net shape profiles of the forming surfaces.

The mat of the present invention includes a main body integrally formed by a plastic material. The main body at least has a first surface and a second surface adjacent to the first face. The first face and the second face have different surface physical characteristics. The first surface and the second surface are shaped into a third surface and a fourth surface respectively. The third surface and the fourth surface have a substantially same surface physical characteristic. An angle between the third surface and the fourth surface outside the main body is a specific value.