A versatile silicone resin reflective substrate which exhibits high reflectance of high luminance light from an LED light source over a wide wavelength from short wavelengths of approximately 340-500 nm, which include wavelengths from 380-400 nm near lower limit of the visible region, to longer wavelength in the infra-red region. The silicone resin reflective substrate has a reflective layer which contains a white inorganic filler powder dispersed in a three-dimensional cross linked silicone resin, the inorganic filler powder having a high reflective index than the silicone resin. The reflective layer is formed on a support body as a film, a solid, or a sheet. The silicone resin reflective substrate can be easily formed as a wiring substrate, a packaging case or the like, and can be manufactured at low cost and a high rate of production.

A method for hydroforming a composite precursor material includes forming a composite precursor material comprising an original spun bonded nonwoven web and a polymer film layer. The method also includes applying a plurality of pressurized liquid jets onto an outer surface of the original spun bonded nonwoven web while the composite precursor material passes over a forming structure to push and reorient a plurality of spun bonded fibers from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed composite material comprising an expanded spun bonded nonwoven layer having a loft of at least about 1.3 times greater than the original loft of the original spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web.

A die-formed chamfered plastic floor and a preparation method thereof are disclosed. The method includes: mixing raw materials for preparing a plastic floor matrix to obtain a mixed material; subjecting the mixed material to an extrusion, a laminating-embossing treatment, a die forming-chamfering treatment, a coating with an ultraviolet curable paint, a slicing, and a tenoning in sequence, to obtain the die-formed chamfered plastic floor. In the disclosure, a die forming-chamfering treatment is set between a laminating-embossing treatment and a coating with an ultraviolet curable paint, and thereby a chamfer embossing could be formed on the surface of the workpiece through pressing.

A method for the manufacture of a polymer strip useful to secure information contained on a face of a card includes the steps of extruding a polymer resin to form an optically transparent strip and then embossing an optically variable device into a first surface of this optically transparent strip. A time from when the optically transparent strip exits an extruder until embossing is effective to prevent the optically transparent strip from cooling to a temperature below 120 C. Subsequent to embossing, the optically variable device may be entirely or partially metalized. Alternatively, or in addition, to the metallization, security features may be formed into that first surface.

The embodiments provide a process for preparing a polishing sheet, a polishing pad using the same, and a process for preparing a semiconductor device using the same. The process for preparing a polishing sheet comprises forming a pattern on the surface of a polymer sheet and winding the patterned polymer sheet to form a wound roll in a cylindrical shape. Thus, there are great advantages in that it is possible to control the size and distribution ratio of a fine and uniform pattern at a desired location in an economical and efficient way and to freely design the type, size, structure, physical properties, and the like of the polishing sheet according to the purpose, whereby the application field can be expanded, and a bulk structure can be manufactured.

The present disclosure relates to a method to produce a wear resistant layer (1) and a method to produce a building panel (10) including a wear resistant layer (1). The wear resistant layer (1) includes a thermoplastic material. The wear resistant layer (1) is provided with portions (5, 6) having different gloss levels. The disclosure also relates to such a building panel (10).

[Problem] The objective of the present invention is to provide a sheet expressing a good tactile sensation and a molded product thereof. [Solution] A sheet expressing a good tactile sensation and a molded product thereof are provided by configuring a thermoplastic resin sheet having a base layer and hairlike bodies arranged regularly on at least one surface thereof, wherein a continuous phase is formed without a structural boundary between the base layer and the hairlike bodies.

A molding apparatus (10) for forming a retaining device. The molding apparatus (10) comprises a molding strip (12) and a molding support (24). The molding strip (12) has an inside face (14), an outside face (16), and a plurality of through cavities (18) extending from the outside face (16) to the inside face (14), the molding strip (12) extending in a longitudinal direction (X) and presenting both a transverse direction (Y) perpendicular to the longitudinal direction (X), and also a height direction (Z) perpendicular to the longitudinal direction (X) and to the transverse direction (Y). The inside face (14) is configured to press against a molding face (26) of the molding support (24), wherein the inside face (14) of the molding strip (12) and/or the molding face (26) of the molding support (24) includes an array of passages, the array of passages forming vents and connecting together the cavities (18) when the molding strip (12) is pressed against the molding support (24).

The invention provides a process to orient a high molecular weight polymer film, formed from molten, dispersed or dissolved state, characterised in that as a start of this orientation process the film becomes embossed in a pattern of closely spaced dots or thin short lines, 5 thereby becoming oriented within these embossments, whereafter the orientation process is continued in one or more steps by m.d. stretching, t.d. stretching, or combined m.d. and t.d. stretching, whereby the embossed and oriented dots or lines gradually grow and develop until essentially the entire film has become oriented.

A method for preparing an unsintered PTFE film capable of being continuously formed and with uniform density distribution and high density. The method for preparing the unsintered PTFE film includes filling a mixture obtained by adding a forming aid to PTFE fine powder in an extrusion forming die, extruding the filled mixture from the extrusion forming die to produce an extrusion forming body, rolling the extrusion forming body with a roll to produce a forming aid-removed film without the forming aid, and pinching the forming aid-removed film into a pinch roll made of a rubber roll formed by coating rubber on a metal shaft core at room temperature and compressing the forming aid-removed film so that thickness of the forming aid-removed film is reduced and density thereof is above 2.0 g/cm.sup.3.