Abstract:
A system comprises a slot die including an applicator slot extending about a width of the slot die, wherein the applicator slot is in fluid communication with a fluid flow path through the slot die, and a plurality of actuators spaced about the width of the slot die, wherein each actuator in the plurality of actuators is operable to adjust a cross-directional thickness of the fluid flow path at its respective location to provide a local adjustment of fluid flow through the applicator slot. The system further comprises a controller configured to set the position of each actuator according to one of a plurality of discrete settings for operation of the slot die. The controller is further configured to, using fluid dynamics and a digital model of the die, predict a set of discrete settings from the plurality of discrete settings corresponding to a preselected cross-web profile for the extrudate.
Abstract:
A composite sheet material and method for forming the same is provided that includes a substrate, a matrix, and a cover sheet. The substrate has a first face surface, a second face surface, and a plurality of edges, and includes a thermoplastic material. The matrix is attached to the substrate. The matrix includes a support component having a first melting point, and a thermoplastic component having a second melting point. The second melting point is less than the first melting point. The cover sheet imparts one or more surface characteristics to the composite sheet material during thermo-pressure formation of the composite sheet material.
Abstract:
A method (400) of additively manufacturing a composite part (102) comprises applying a photopolymer resin (252) to a non-resin component (108) while pushing a continuous flexible line (106) through a delivery assembly (266). The continuous flexible line (106) comprises the non-resin component (108) and a photopolymer-resin component (110) that comprises at least some of the photopolymer resin (252) applied to the non-resin component (108). The method (400) also comprises depositing, via the delivery assembly (266), a segment (120) of the continuous flexible line (106) along a print path (122). The method (400) further comprises delivering curing energy (118) to at least a portion (124) of the segment (120) of the continuous flexible line (106) deposited along the print path (122).
Abstract:
A method (300) of additively manufacturing composite part (102) comprises depositing a segment (120) of a continuous flexible line (106) along a print path (122). The continuous flexible line (106) comprises a non-resin component (108) and further comprises a photopolymer-resin component (110) that is uncured. The method (300) further comprises delivering a predetermined or actively determined amount of curing energy (118) at least to a portion (124) of the segment (120) of the continuous flexible line (106) at a controlled rate while advancing the continuous flexible line (106) toward the print path (122) and after the segment (120) of the continuous flexible line (106) is deposited along the print path (120) to at least partially cure at least the portion (124) of the segment (120) of the continuous flexible line (106).
Abstract:
A product, generally in sheet form, allowing adjustment in positioning on installation and subsequent removal, including a layer comprising crumb-rubber material, and having a first side and a second side. A coating of a low-grab pressure sensitive adhesive is applied directly to at least part of the exposed surface of the crumb-rubber material. The adhesive is determined to be a low-grab adhesive if, after 24 hours adhesive binding dwell-time, a 90° peel adhesion at 300 mm/minute, as measured by FINAT Test Method No. 2, of between 1.77 and 3.96 Newtons/25 mm width at room temperature (23° C.±1° C.) and at a relative humidity of 50%±5%.
Abstract:
The present invention concerns a coated substrate comprising a substrate and an extrusion coated PVdC layer with a thickness of less than 10 micrometres.
Abstract:
A method of manufacturing a polymer-insulated conductor. The method includes the steps of a) providing a conductor having a first cross-sectional shape, b) passing the conductor through a conductor-shaping die to shape the conductor such that the conductor obtains a second cross-sectional shape, wherein frictional heat is developed in the conductor, thereby setting the conductor in a heated state, c) applying molten polymer to the conductor when the conductor is in the heated state to obtain a polymer-coated conductor, and d) shaping the polymer-coated conductor by means of a polymer-shaping die to thereby obtain the polymer-insulated conductor.
Abstract:
A thermally insulating stretchable down feather sheet and its method of manufacture is described. The core of the sheet is comprised of down feathers mixed with a binder which exhibits elastic properties. The core is sandwiched between a top and bottom stretchable elastomeric sheet having multi-directional stretchability. The core down feathers and the binder as well as the elastomeric sheet and bound together by heat treatment to provide a down feather insulating sheet which is stretchable in all directions without fractioning the sheet.
Abstract:
Herein are disclosed a pressure-sensitive adhesive layer on a substrate, the adhesive layer containing stripes of first and second pressure-sensitive adhesives. The surface of the adhesive layer that faces the substrate is surface-enriched with the first pressure-sensitive adhesive. Methods of making are disclosed.
Abstract:
A composite part is fabricated by rastering a deposition head over a substrate, and additively forming part features by extruding a polymer having an entrained continuous nanotube reinforcement from the deposition head onto a substrate.