A method for extrusion coating or extrusion casting, a polymer sheet (4, 5) produced thereby, a roller (2) for use in extrusion coating or extrusion casting, and an apparatus comprising said roller (2), in which micro- and/or nanostructures provided on the surface of the roller (2) are transferred to the polymer sheet (4, 5), and which is applicable to the extrusion coating or extrusion casting of all types of thermoplastic polymer.

The present invention provides an aerospace or aircraft transparency which, generally, comprises a cast acrylic having a conductive acrylic incorporating a conductive ionic polymer is cast thereatop and cured. In a second embodiment hereof, a stretchable acrylic formulation having a conductive polymer admixed therewith along with a minor amount of a cross-linking agent cast atop a ply of unfilled stretchable acrylic. The stack is simultaneously cured and then stretched.

An example system for molding a photocurable material into a planar object includes a first mold structure having a first mold surface, a second mold structure having a second mold surface, and one or more protrusions disposed along at least one of the first mold surface or the second mold surface. During operation, the system is configured to position the first and second mold structures such that the first and second mold surfaces face each other with the one or more protrusions contacting the opposite mold surface, and a volume having a total thickness variation (TTV) of 500 nm or less is defined between the first and second mold surfaces. The system is further configured to receive the photocurable material in the volume, and direct radiation at the one or more wavelengths into the volume.

An example system for molding a photocurable material into a planar object includes a first mold structure having a first mold surface, a second mold structure having a second mold surface, and one or more protrusions disposed along at least one of the first mold surface or the second mold surface. During operation, the system is configured to position the first and second mold structures such that the first and second mold surfaces face each other with the one or more protrusions contacting the opposite mold surface, and a volume having a total thickness variation (TTV) of 500 nm or less is defined between the first and second mold surfaces. The system is further configured to receive the photocurable material in the volume, and direct radiation at the one or more wavelengths into the volume.

A casting mold for producing a casting having a front side and a rear side from a curable casting compound, including at least a first mold part shaping the front side and a second mold part shaping the rear side, the mold parts together delimiting a casting cavity. The first mold part has a first metal layer delimiting the casting cavity and the second mold part has a second metal layer delimiting the casting cavity. At least one metal layer is at least partially deformable for the purpose of changing the casting cavity volume. At least one mold part has an areal intermediate layer which is composed of an elastically deformable and compressible material and against which the metal layer of the mold part is movable with build-up of a restoring force on the part of the deforming intermediate layer.

An example system for molding a photocurable material into a planar object includes a first mold structure having a first mold surface, a second mold structure having a second mold surface, and one or more protrusions disposed along at least one of the first mold surface or the second mold surface. During operation, the system is configured to position the first and second mold structures such that the first and second mold surfaces face each other with the one or more protrusions contacting the opposite mold surface, and a volume having a total thickness variation (TTV) of 500 nm or less is defined between the first and second mold surfaces. The system is further configured to receive the photocurable material in the volume, and direct radiation at the one or more wavelengths into the volume.

An example system for molding a photocurable material into a planar object includes a first mold structure having a first mold surface, a second mold structure having a second mold surface, and one or more protrusions disposed along at least one of the first mold surface or the second mold surface. During operation, the system is configured to position the first and second mold structures such that the first and second mold surfaces face each other with the one or more protrusions contacting the opposite mold surface, and a volume having a total thickness variation (TTV) of 500 nm or less is defined between the first and second mold surfaces. The system is further configured to receive the photocurable material in the volume, and direct radiation at the one or more wavelengths into the volume.

The invention relates to a method for producing a polymethyl methacrylate plate, comprising the steps of providing a mould comprising at least one gasket which is enclosed between two substantially parallel mould parts, introducing liquid comprising methyl methacrylate prepolymer and/or methyl methacrylate monomer in the mould and enabling polymerization of the liquid methyl methacrylate. The invention also relates to a gasket for use in a mould for producing a polymethyl methacrylate plate.

A barrier wall is formed by rotating a mold to a horizontal orientation so that a rear wall of the mold is horizontally disposed and an encircling sidewall upstands from the rear wall, the floor and encircling sidewall at least partially bounding a compartment, an upper end of the encircling sidewall at least partially bounding a first access opening to the compartment. A first material is disposed into the compartment through the first access opening, at least a portion of the material being curable. A cover is placed over the first access opening to enclose the compartment. The mold is then rotated from the horizontal orientation to a vertical orientation. A portion of the sidewall is then moved to form a second access opening to the compartment. A second material is then dispensed into the compartment, at least a portion of the second material being curable.

A product and a method of manufacture and assembly of a prefabricated wall panel for construction is shown and described. The present invention is directed towards minimizing the labor of multiple additive steps using many layers and materials seen in many building envelopes.

In one example, the method comprises,

A series of prefabricated residential or commercial building panels made of any of varying materials such as hemperete, fiber, cellulose, plant material, bio-aggregate, aggregate, aerated concrete, composite or inorganic materials, of substantially solid body with channel shaped elongated voids substantially located at the vertical sides as well as horizontally across their top.

Said voids in one panel are a connected channel wrapping around 3 or more sides of the panel and exposed to the exterior of said panel. Said panels are placed side by side around the perimeter of a foundation aligning the channel shaped void in one panel with the respective channel shaped void in the panel beside it creating a concrete form, or form for a load bearing material. Said panels are left in place as an integral part of the wall system. Concrete or other load bearing material is placed in said voids substantially vertically between the panels and across their tops creating an air seal and a mechanical bond between panels. The resulting concrete shape inside the wall is a post and beam structure that is substantially equidistant from the interior and exterior of the wall minimizing heat transfer through thermal bridging and minimizing weathering to the concrete. Many of the requirements of a building's wall such as the insulation, the shear strength, the rough openings for windows and doors, the interior and exterior skin, utility chases, drip edges and trim details can be met by this series of prefabricated building blocks. A method of manufacture of the building panels, the product created by that manufacture, a method of panel assembly and integration with other building components, and the finished product created by the manufacture, assembly and integration with other building components are all shown in the present disclosure.