A formulation for producing a polymeric material including polypropylene, a chemical blowing agent, and optional components as described.

A method of forming a three-dimensional object, wherein said three-dimensional object is an insert for use between a helmet and a human body, is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

The invention relates to a floor or wall panel and to a method of producing such panel. The panel comprise at least one core layer comprising at least one composite material, said composite material comprising at least one mineral filler, and at least one thermoplastic binder, which are present in a preferred ratio and composition such that a relatively light weight and rigid panel is obtained.

Methods of forming an article from a molten plastic composition comprising a polymer and a blowing agent. The methods include injecting the molten plastic composition into a mould, allowing the plastic composition to form a first solid skin adjacent to an in contact with a first cavity-forming surface of the mould and a second solid skin adjacent to and in contact with a second cavity-forming surface of the mould, and then opening the mould before the molten plastic composition between the first and second solid skins in at least one portion of the circumference of a region of the mould cavity defining an annular cross-section of the cavity has solidified.

The present invention relates to methods for forming a composite product having a patterned surface. A substrate including a porous structure (136), a sheet-form material (134) and a patterned sheet (131) are pressed together to form the composite product. In preferred examples, the patterned sheet is permeable to curable material in the sheet-form material.

The present invention discloses a multilayer composite rubber-plastic foam insulation material and a preparation method thereof. The composite rubber-plastic foam insulation material includes a two-layer structure; the two-layer structure includes an insulation layer and a first functional layer; the insulation layer and the first functional layer are both made of a rubber-plastic foam material; the first functional layer and the insulation layer are integrally molded by blending extrusion and vulcanization foaming, and the first functional layer and the insulation layer form an integral structure. The multilayer composite rubber-plastic foam insulation material provided by the present invention adopts a vulcanization foaming integral molding process, and not only ensures the thermal insulation property of the insulation layer, but also gives the functional layer corresponding functions by selecting different functional polymers, thereby satisfying a variety of personalized needs in engineering applications.

A resin molded article includes: a main body portion having a design face and an opposite face thereto, and having a first foamed layer formed inside the main body portion; a protruding portion that is provided at an edge portion of the main body portion, and that protrudes toward a side opposite from the design face in a thickness direction of the main body portion; and a concavity that is recessed from a surface of the opposite face toward a thickness direction side of the main body portion at a root portion of the protruding portion at the opposite face.

A steering wheel includes a core and a foamed polyurethane coating that covers a ring section of the core. The foamed polyurethane coating is formed by foam molding of a polyurethane material containing 91 parts by mass of a base polyol, 10 to 25 parts by mass of a pigment, 1 to 3 parts by mass of a benzotriazole ultraviolet absorber, 0.8 to 2.5 parts by mass of a hindered amine photostabilizer, and a polyisocyanate. A total amount of the ultraviolet absorber and the photostabilizer is 2.7 parts by mass or more. The foamed polyurethane coating is in the form of an integral skin foam including a highly foamed core foam and a lowly foamed skin layer. The surface of the skin layer is not provided with a coating film formed from a coating material, and serves as a product surface that assumes a color of the pigment.

Provided are a method for molding a foamed resin molded article having a mounting hole which is formed with good dimensional precision without occurrence of shape sag and which has an improved load resistance, a mold therefor, and a foamed resin molded article thereby. A method for molding a foamed resin molded article 1 including a mounting section 11 and a non-mounting section 12, using a mold 3 including a first mold 31 having a non-mounting-section mold portion 31a and a mounting-section mold portion 31b, a second mold 32, and a cavity 4 having a non-mounting-section cavity portion 42 for molding the non-mounting section 12 and a mounting-section cavity portion 41 for molding the mounting section 11. The method includes: a filling step of filling a material to be molded into at least the mounting-section cavity portion 41; and a core-back step of moving at least one of the non-mounting-section mold portion 31a, the mounting-section mold portion 31b, and the second mold 32 so that a cavity width of the non-mounting-section cavity portion 42 is increased while a cavity width of the mounting-section cavity portion 41 is constant, the filling step and the core-back step being sequentially performed.