A long fiber-reinforced polymer composition is disclosed having excellent flame retardant properties. The flame retardant composition can include a flame retardant system comprised of a metal phosphinate in combination with elevated levels of a synergist, such as a polyphosphate. The composition can display excellent flame resistant properties at extremely small thicknesses.

A method of making a fiber preform for ceramic matrix composite (CMC) fabrication comprises laminating an arrangement of fibers between polymer sheets comprising an organic polymer, which may function as a fugitive binder during fabrication, to form a flexible prepreg sheet. A plurality of the flexible prepreg sheets are laid up in a predetermined geometry to form a stack, and the stack is heated to soften the organic polymer and bond together the flexible prepreg sheets into a bonded prepreg structure. Upon cooling of the bonded prepreg structure, a rigid preform is formed. The rigid preform is heated at a sufficient temperature to pyrolyze the organic polymer. Thus, a porous preform that may undergo further processing into a CMC is formed.

A structure for use in a compressible resilient pad. The structure contains both axially elastomeric strands and relatively inelastic strands co-extruded in various patterns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.

The invention provides a laminate having high elastic modulus retention even at high temperature and having moderate hardness. The laminate includes a layer (A) formed from a fluororesin and a layer (B) formed from a polyamide resin. The fluororesin is a copolymer containing a copolymerized unit of tetrafluoroethylene and a copolymerized unit of vinylidene fluoride, and has a storage elastic modulus (E) of 60 to 400 MPa measured by dynamic mechanical analysis at 170 C.

A structure for use in a compressible resilient pad. The structure contains both axially elastomeric strands and relatively inelastic strands co-extruded in various patterns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.

The present invention provides an adhesive film having an adhesive layer on at least one surface of a heat-resistant layer, in which the heat-resistant layer contains a thermoplastic resin having an aromatic ring in a monomer unit as an essential component, a heat deflection temperature of the heat-resistant layer is 100? C. or higher, and the adhesive layer contains a modified polyolefin resin as an essential component and, furthermore, contains at least one resin having a styrene structure or a cyclic hydrocarbon structure.

An extrusion die makes a structuring fabric which has structuring-beads resting on sublayer-beads. The extrusion die has a flat first surface and a flat second surface, the first and second surfaces contact each other along a contact line. The first and second surfaces are inclined with respect to each other. The first surface has a first nozzle of a pair of nozzles for extruding a sublayer-bead and the second surface has a second nozzle of the pair of nozzles for extruding a structuring-bead on top of the sublayer-bead. The first nozzle has a substantially rectangular shape and the second nozzle has a shape that resembles a square with all four side edges bulged inwardly. Both the first nozzle and the second nozzle are located in close proximity to the contact line. The first nozzle has a first symmetry axis that is perpendicular to the contact line.

In a system and method for making a capped structure having a variegated cap layer a layer of cap materials is applied to a substrate and pin stripes are applied onto the cap layer through an extrusion die. After these materials exit the extrusion die they are passed through a single opening in a die plate to create a capped structure having a variegated appearance. This capped structure has a smooth surface that enables an embosser to create a consistent embossing pattern on the entire surface.

The present invention relates to a process for the production of a panel for floor or wad coverings comprising the steps of mixing and homogenising raw materials, thereby obtaining a dryblend, extruding said dryblend, thereby obtaining one or more thermoplastic layers, laminating the afore-mentioned thermoplastic layers, thereby obtaining a laminate, and profiling said laminate, thereby obtaining a panel for floor or wall coverings, wherein at least one thermoplastic layer is extruded by means of a co-rotating twin-screw extruder with pressure element.

A multilayer film can comprise: a plurality of layers, preferably 4 layers to 128 layers, comprising: a polymer A layer comprising a polycarbonate copolymer and a polymer B layer comprising a semi-crystalline biaxially-oriented polyester; and an inter-diffusion region between each polymer A layer and polymer B layer; wherein a differential solubility parameter of polymer A towards polymer B (??.sub.AB) is 2.6 MPa.sup.1/2???.sub.AB?3.0 MPa.sup.1/2. Each polymer B layer has a particular crystallinity. The multilayer film can exhibit a combination flexibility and impact resistance.