A mold for a wire grid polarizer includes a hard mold and a soft mold, in which the hard mold includes a main body, an oxidization layer provided on the main body, and a SAM layer provided on the oxidization layer and including an additive, the soft mold includes a substrate, and a protrusions and depressions portion including a polymerized releasing agent, and a region that is hydrophobic in the polymerized releasing agent is arranged on a surface of the protrusions and depressions portion.

The disclosure relates to a method for producing molding and/or drying modules for the production of containers comprising fibers by means of the molding and/or drying modules, wherein the method comprises producing a molding and/or drying module, wherein at least a part of the molding and/or drying module is produced by means of an additive manufacturing method, for example by means of 3D printing. The disclosure further relates to a device for carrying out the method for producing molding and/or drying modules for the production of containers comprising fibers, a molding and/or drying module produced by means of this method, a method for producing a container comprising fibers using a molding and/or drying module which has been produced by means of the method for producing molding and/or drying modules for the production of containers comprising fibers, and a device for producing containers comprising fibers.

A composite material forming device includes a pressurizing unit, heating unit, a movement mechanism, and a control unit. The device processes a composite material in which reinforced fibers have been impregnated with a thermosetting resin from a softened state or semi-cured state into a cured state while forming the composite material into a prescribed size and prescribed shape. The pressurizing unit applies pressure to a prescribed region of the composite material. The heating unit applies a magnetic field to the prescribed region of the composite material to which pressure has been applied by the pressurizing unit, thereby heating a prescribed region of the composite material. The movement mechanism causes the pressurization region and heating region to synchronously move by simultaneously changing the position of a first member relative to the composite material and the position of the heating unit relative to the composite material.

Benzyl ether-type phenolic resins are useful in either a phenolic resin polyurethane cold-box (PUCB) process or a phenolic resin polyurethane no-bake (PUNB) process. The benzyl ether-type phenolic resins contain at least one formaldehyde scavenger in the form of a beta-dicarbonyl compound, and an alpha-carbonyl-carboxyl compound, particularly glyoxylic acid, binders based on these phenolic resins, and isocyanate compounds having at least two isocyanate groups. The resins having the inventive concept exhibit low free formaldehyde content. The inventive concept extends to molding material blends containing the binder, and a method for producing cores, molds or risers.

Provided are a production method of a mold having a recessed pattern, and a manufacturing method of a pattern sheet having good accuracy and excellent productivity. The production method of a mold includes: a step of preparing an electroform having a protruding pattern and a mold having a first mold and a second mold forming a cavity; a step of fixing the electroform excluding an end portion of the electroform to the first mold; a clamping step of clamping the electroform excluding the end portion of the electroform and a region of the protruding pattern between the first mold and the second mold to form the cavity; and an injection step of filling the cavity with a resin.

A device and method for locally reinforcing and forming an elastic mold for micro-fluidic chips are provided. The device comprises a processing recess provided to a lathe, and a mold master pattern with a clamp installed in the processing recess through the mold master pattern clamp. The cathode of an electrophoresis auxiliary system is connected with a shaft of the lathe, and the output of the electrophoresis auxiliary system is simultaneously connected with the cathode and clamp of the mold master pattern, so that an auxiliary electric field can be formed between the mold master pattern and the cathode, so that a granular colloidal circulation system enables the mixed colloid produced by mixing reinforcing particles and filler colloid to deposit on the region to be reinforced of the elastic mold. A vacuum temperature control system is configured to heat and solidify the mixed colloid formed.

In order to well perform recoating regardless of the type of granular material and reuse a refractory aggregate in an unprinted portion without any regeneration process in the manufacture of a three-dimensional lamination-shaped mold, this invention provides a granular material for use in shaping a three-dimensional laminated mold, which is coated with an acid as a catalyst which activates and cures an organic binder for binding the granular material. The acid contains at least one of sulfuric acid, phosphoric acid, a sulfonic acid and a carboxylic acid, and is one of a mixture of sulfuric acid and another acid, phosphoric acid only, a mixture of phosphoric acid and another acid, sulfonic acid only, a mixture of sulfonic acid and another acid and a mixture of a carboxylic acid and another acid.

A method of manufacturing a self-supporting, monolithic fuselage body, including engaging peripheral mandrel sections around at least one central mandrel section, placing uncured composite material on the mold surface, curing the composite material on the mold surface, and sliding the central mandrel section(s) out of engagement with the peripheral mandrel sections and disengaging the peripheral mandrel sections from the cured composite material without collapsing the mandrel sections. The peripheral mandrel sections each include a shape-retaining core of a thermally insulating material and an outer layer on an outer surface of the shape-retaining core. The outer layer has a coefficient of thermal expansion within the range of variation of that of the coefficient of thermal expansion of the composite material. A mandrel for layup and cure of a predetermined composite material in the manufacture of a monolithic fuselage is also discussed.

According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.

According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.