The present invention provides a sheet material having bi-directionally formed micropores, pertaining to the field of material structures. The sheet material comprises a basic half side and a protrusive half side extending from the basic half side. The basic half side is formed with multiple recesses extending along a first orientation; while the protrusive half side has multiple beams extending along a second orientation. Herein the second orientation extends at an angle with respect to the first orientation, and a bottom edge is respectively formed at the intersection of the beam and the neighboring beam; also, a hole is respectively formed at the crossing position of the bottom edge and the recess.

The invention relates to a method for creating a surface structure on a mold, wherein first structural elements are created using a laser structuring process in a first step, and second structural elements, which are smaller than the first structural elements, are created using an anodic oxidation process in another step following the laser structuring process. The invention further relates to a mold of said type and finally to a plastic film or a plastic component having a surface structure as well as to a method for the production thereof.

To provide a method for manufacturing a double-sided adhesive material suitable for the size and shape of various articles using a simple process without reducing the yield of the adhesive material that is used, and to provide an article with a double-sided adhesive material that uses the double-sided adhesive material obtained by this manufacturing method. [Resolution means] Liquid photo curing adhesive 12 is applied by direct drawing onto a specific region corresponding to the size and shape of an article to be used, on the surface of a first plate 10, using a robot. A sheet shaped second plate 20 is placed on the first plate 10 where the adhesive 12 was applied, such that the adhesive 12 is interposed between both plates. Light for curing the adhesive is then irradiated from both sides of the adhesive 12 so that the light will pass through both the first plate 10 and the second plate 20 and reach the adhesive 12.

A method for making a slip resistant mat can include assembling parts with predetermined geometries to form a mold that can be used for making slip resistant mats that have channels to account for moisture between the mat and the floor. The unique geometries of the parts which form the mold can be manufactured efficiently and with reduced costs. The mold of this invention can be used to make slip resistant mats with channels that can both dissipate water and offer a high degree of mat to floor surface contact.

A resin product wherein a resin B has pillar structures or lamellar structures inside a resin A is molded by kneading the resin A and the resin B that serves as a base material in an injection molding machine while heating both of the resins to at least a temperature at which both of the resins are melted at least partially. The resin product is soaked in a solution having higher erosion capability with respect to the resin A than the resin B, thereby dissolving the resin B and forming an uneven structure on the surface. As a result, an uneven structure having various shapes, densities or depths which are precisely adjustable can be formed at low cost. And provided are a resin structure and a production method thereof that can maintain wettability control or optical property control of the molded article over a long period of time.

A polyethylene microporous membrane has a Gurley air permeability of 1 to 1,000 sec/100 mL/25 m, wherein the total length of waviness widths in the width direction of the polyethylene microporous membrane is not more than one-third of the overall width of the microporous membrane. The polyethylene microporous membrane has excellent planarity without compromising any other important physical property such as permeability.

The present disclosure relates to a method for transferring an embossed structure to at least a part of a surface of a coating (B2), using a composite (F1B1) composed of a substrate (F1) and of an at least partially embossed and at least partially cured coating (B1), where the coating (B2) and the coating (B1) of the composite (F1B1) have embossed structures which are mirror images of one another. Also described herein is a composite (B2B1F1). Further described herein is a use of this composite for producing an at least partially embossed coating (B2) in the form of a free film or a composite (B2KF2) composed of a substrate (F2), at least one adhesive (K), and the coating (B2).

A stamp for micro-transfer printing includes a body and one or more posts extending from the body. At least one of the posts has a non-planar surface contour on the distal end of the post having a size, shape, or size and shape that accommodates a non-planar contact surface of a micro-transfer printable device.

A low cost transdermal patch comprises water soluble microneedles and has good performance. A transdermal patch comprises a microneedle sheet, which comprises a plurality of water soluble microneedles, moisture permeable sheet, wherethrough water vapor passes, and a reinforcing film. The reinforcing film is adhered, by an adhesive layer having an adhesive strength less than that of an adhesive layer, onto an outer surface of the moisture permeable sheet, which is the side opposite the skin opposing surface. The reinforcing film includes a water vapor barrier sheet, which blocks the passage of water vapor through at least a first area, and a removable portion around the water vapor barrier sheet. The removable portion is configured such that it can be separated from and peeled off the water vapor barrier sheet.

A substrate having an undulating surface forming a series of rounded peaks and valleys that produce a continuously curving surface across at least a portion of the substrate. The undulating surface defines a first set of micro features. A second set of micro features molded on the first set of micro features. The substrate is a compression molded polymeric material in which the first and second sets of micro features are formed on the substrate during a single molding step, and wherein the first and second sets of micro features cooperate to increase the surface area and affect at least one of adhesion, friction, hydrophilicity and hydrophobicity of the substrate.