Abstract:
An extruded composite (10) adapted for use as a building material includes a core (12) having a base polymer and a filler material in a substantially homogeneous mixture and a polymeric capstock (14) modified with an elastomer and/or a plastomer. To improve adherence of the polymeric capstock to the base polymer, the capstock can include a capstock polymer that is similar or substantially similar the base polymer. Additionally, various additives may be mixed with the capstock material to improve visual aesthetics of the product and performance of the building material, especially over time.
Abstract:
An extruded composite adapted for use as a building material includes a core having a base polymer and a filler material in a substantially homogeneous mixture and a polymeric capstock modified with an elastomer and/or a plastomer. To improve adherence of the polymeric capstock to the base polymer, the capstock can include a capstock polymer that is similar or substantially similar the base polymer. Additionally, various additives may be mixed with the capstock material to improve visual aesthetics of the product and performance of the building material, especially over time.
Abstract:
A coextrusion process for coextruding a thermoplastic elastomer with two outer layers of adhesive to form a film, and a laminate comprising a plurality of layers including an adhesive layer, a sublayer and a barrier layer. The barrier layer comprises a dynamically vulcanized thermoplastic elastomer composition present in one or more plies of the barrier layer. The sublayer comprises a first ply of a first adhesive composition joining the barrier layer and a second ply, and the adhesive layer comprises the second ply, which is vulcanizable with diene-based rubber. The sublayer of the adhesive can be laid down in contact with the relatively hot thermoplastic elastomer to moderate the temperature of the outer layer of the adhesive, whereby the outer layer of the adhesive at least is protected from scorching and can be co-vulcanized with rubber in a tire building process.
Abstract:
An elongated composite element (10) includes an elongated form comprising a flexible material (12) and having a plurality of holes (18) or a plurality of indentations (114a) or the like established thereat, and a core material (14) that either (a) substantially fills an interior cavity of an elongated tubular form and that protrudes at least partially through the holes established in the elongated tubular form, or (b) is disposed along and over a plurality of elongated members and is at least partially received in indentations to adhere the core material to the plurality of elongated wire members. An outer layer (16) may substantially encase the elongated form and the core material to provide an outer surface of the composite tubular element. The elongated composite element may include strengthening elements and the polymeric core portion may be disposed along and over the plurality of strengthening elements.
Abstract:
The invention relates to a method and device for producing a composite profile made of extrudable plastics, wherein a first profile (1) is first extruded and then cooled in a calibration fixture until a dimensionally stable state is reached, then extrusion coated in an extrusion coating zone (3, 18, 19) by at least one second profile (2), characterized by treating by a mechanical and/or chemical pretreatment, by changing the ambient pressure in a pretreatment zone (4, 14, 15) and/or by irradiation by laser radiation (40) for heating the first profile (1), wherein said treatment is upstream of the extrusion coating zone (3, 18, 19) in the direction of extrusion (E).
Abstract:
Disclosed are multilayer film structures having annular profiles, and methods and apparatus of making the structures disclosed. The annular multilayer articles have a uniform thickness, at least four layers and comprise overlapped and non-overlapped circumferential areas; wherein the layer structure of the non-overlapped area is doubled in the overlapped layer. A method of making the structure includes providing a multilayer flow stream with at least four layers of thermoplastic resinous materials; feeding the multilayer flow stream to a distribution manifold of an annular die to form an annular multilayer flow stream; and removing the annular multilayer flow stream from the annular die to form the annular multilayer structure. Also disclosed is an apparatus, comprising: a feedblock, with optional layer multiplier, that provides a multilayer flow stream of at least four layers to the manifold of an annular die; and an annular die having at least one distribution manifold that extrudes a multilayer flow stream.
Abstract:
The present invention relates to an apparatus for manufacturing a stratified structure, said apparatus being a mass production apparatus capable of forming high performance stratified micro-units on a flexible substrate. To this end, the apparatus for manufacturing a stratified structure according to the present invention releases micro-units arranged on a dummy substrate made of hard materials and stacks the micro-units on a target substrate made of soft materials, said apparatus comprising a conveyor stage which supports and flat-line conveys the dummy substrate; and a main roller which winds up and rolls the target substrate such that the dummy substrate and the target substrate are pressed against each other, and thus the micro-units of the dummy substrate are stacked on the target substrate.