Abstract:
A patterned film is disclosed. The patterned film includes at least a first patterned region and a non-patterned region juxtaposed with the first patterned region on a first surface of the patterned film. The patterned region has a series of substantially parallel peaks separated from each other by a series of substantially parallel valleys. The first patterned region and the non-patterned region extend side-by-side for the length of the patterned film in the machine direction, and the parallel peaks and parallel valleys in the first patterned region extend at an angle of at least five degrees to the machine direction. An article including an airfoil or hydrofoil have a seamless portion of the patterned film on its surface is also disclosed.
Abstract:
Composite layer having a length and width and comprising a first plurality of repeating, three-dimensional structures having peaks and valleys, comprising a first polymeric material and a second plurality of repeating, three-dimensional structures having peaks and valleys that is adjacent to, and the inverse of, the first plurality of repeating, three-dimensional structures, and comprising a second polymeric material. There is a distance between adjacent peaks comprising the first polymeric material. There is an average of said distances between adjacent peaks comprising the first polymeric material. Any of said distances between adjacent peaks comprising the first polymeric material is within 20 percent of said average distance between adjacent peaks comprising the first polymeric material.
Abstract:
A process to mark a multilayered article having a release layer and an adhesive layer, using a laser to produce markings within more than one layer of the article. The process includes providing a multilayered article including a laser-markable release liner having a release layer, and a laser-markable adhesive film; and marking the laser-markable release liner and the laser-markable adhesive film by directing laser radiation from at least a first source of laser radiation into the multilayered article through at least the first release layer to induce an interaction between a first light-sensitive pigment and a first organic polymer in the laser-markable release liner, and a second light-sensitive pigment and a second organic polymer in the laser-markable adhesive film, to form at least one visually perceptible marking in each of the laser-markable release liner and the laser-markable adhesive film. The release layer is substantially transparent to the laser radiation. Multilayered articles having multi-layer laser markings are also disclosed.
Abstract:
An article including an airfoil or hydrofoil is disclosed. On at least a portion of a surface of the airfoil or hydrofoil there is a seamless film having a series of substantially parallel peaks separated from each other by a series of substantially parallel valleys on a patterned first surface of the film, wherein the seamless film has a long dimension that is at least two meters long substantially aligned with the span of the airfoil or hydrofoil, and wherein an angle between the parallel peaks and valleys to the long dimension of the seamless film is at least five degrees. Methods of making the article are also disclosed.
Abstract:
A process to mark a multilayered article having a release layer and an adhesive layer, using a laser to produce markings within more than one layer of the article. The process includes providing a multilayered article including a laser-markable release liner having a release layer, and a laser-markable adhesive film; and marking the laser-markable release liner and the laser-markable adhesive film by directing laser radiation from at least a first source of laser radiation into the multilayered article through at least the first release layer to induce an interaction between a first light-sensitive pigment and a first organic polymer in the laser-markable release liner, and a second light-sensitive pigment and a second organic polymer in the laser-markable adhesive film, to form at least one visually perceptible marking in each of the laser-markable release liner and the laser-markable adhesive film. The release layer is substantially transparent to the laser radiation. Multilayered articles having multi-layer laser markings are also disclosed.
Abstract:
The present application is directed to a method of manufacturing an adhesive article. The method comprises providing a first extrudable feedstock comprising a pressure sensitive adhesive and providing a second extrudable feedstock comprising a polyolefin polymer having a density of no greater than 0.91 g/cc. The first extrudable feedstock and the second extrudable feedstock are coextruded in contact with each other to form a coextruded film. The method also comprises cooling the coextruded film.
Abstract:
The present application is directed to a method of manufacturing an adhesive article. The method comprises providing a first extrudable feedstock comprising a pressure sensitive adhesive and providing a second extrudable feedstock comprising a polyolefin polymer having a density of no greater than 0.91 g/cc. The first extrudable feedstock and the second extrudable feedstock are coextruded in contact with each other to form a coextruded film. The method also comprises cooling the coextruded film.
Abstract:
An article including an airfoil or hydrofoil is disclosed. On at least a portion of a surface of the airfoil or hydrofoil there is a seamless film having a series of substantially parallel peaks separated from each other by a series of substantially parallel valleys on a patterned first surface of the film, wherein the seamless film has a long dimension that is at least two meters long substantially aligned with the span of the airfoil or hydrofoil, and wherein an angle between the parallel peaks and valleys to the long dimension of the seamless film is at least five degrees. Methods of making the article are also disclosed.
Abstract:
An extrusion die (20) and method for co-extruding a first molten polymeric material and a second molten polymeric material. The die includes a first die portion (20), a second die portion and a shim separating the first die portion and the second die portion. The shim has a first side and a second side, the first side of the shim forming a boundary of the first die portion and defining a first die cavity (38), the second side of the shim forming a boundary of the second die portion and defining a second die cavity (40). A dispensing edge (36) is provided having a plurality of first and second extrusion openings, a plurality of first feed channels connecting the first die cavity to the first extrusion openings along the dispensing edge, and a plurality of second feed channels connecting the second die cavity to the second extrusion openings along the dispensing edge. The first and second extrusion openings arranged along the dispensing edge to provide an interfacial zone having portions of the first extrusion openings disposed between portions of the second extrusion openings. The die is used in an extrusion system and a method for making a multilayered article.