Patent application number | Description | Published |
20100159197 | ULTRASONIC INJECTION MOLDING ON A WEB - Injection molding, parts onto a carrier web ( | 06-24-2010 |
20120041337 | METHODS OF MAKING HOLLOW MICRONEEDLE ARRAYS AND ARTICLES AND USES THEREFROM - A method of making hollow microneedle arrays is described. Also described are the articles therefrom and the use of the articles in applications such as delivering fluid to and/or extracting body fluid from a subject. | 02-16-2012 |
20120258284 | MOLDING THERMOTROPIC LIQUID CRYSTALLINE POLYMERS AND ARTICLES MADE THEREFROM - A method of molding a composition comprising a thermotropic liquid crystalline polymer (TLCP) comprising mesogens; providing a mold having a mold cavity, with a feature cavity ( | 10-11-2012 |
20120262796 | ULTRASONIC INJECTION MOLDING ON BOTH SIDES OF A WEB - Injection molding parts onto a carrier web located between mold halves, each mold half having a cavity, resulting in molded articles having parts on both sides of the carrier web. Polymer flow into the cavities is assisted by application of ultrasonic energy to the mold. After the molding operation, mold halves are separated, and the carrier web is advanced, or indexed, to a next position for another molding sequence. Articles produced include lenses with part of the carrier web between lens halves, and a carrier web bearing an array of molded parts. | 10-18-2012 |
20120263919 | ARTICLES INJECTION MOLDED ON A WEB - Articles enabled by an injection molding process that molds parts on a carrier web located between mold halves and uses ultrasonic energy to assist flow of polymer melt into the mold cavity. One such article is a carrier web having a high density of molded parts, i.e., bearing an array of molded articles adhered to the web in rows and columns, the articles being spaced closer (center-to-center or edge-to-edge) than the diagonal spacing between articles in the next adjacent row and next adjacent column. Another such article is a microneedle array on a land no more than 250 μm thick on which at least 60% of the microneedles across the array are filled (i.e., completely formed). | 10-18-2012 |
20130236705 | Web With Molded Articles On Both Sides - Injection molding parts onto a carrier web located between mold halves, each mold half having a cavity, resulting in molded articles having parts on both sides of the carrier web. Polymer flow into the cavities is assisted by application of ultrasonic energy to the mold. After the molding operation, mold halves are separated, and the carrier web is advanced, or indexed, to a next position for another molding sequence. Articles produced include lenses with part of the carrier web between lens halves, and a carrier web bearing an array of molded parts. | 09-12-2013 |
20130253446 | LIQUID CRYSTALLINE POLYMER MICRONEEDLES - Thermotropic liquid crystalline polymer microneedles ( | 09-26-2013 |
20130307189 | Injection Molding Apparatus and Method - A heatsink for use in injection molding, with at least one load-bearing path with a rearward segment, wherein at least a portion of at least one non-load-bearing, dynamic heat-transfer zone of the heatsink is laterally offset from the rearward segment of the load-bearing path. | 11-21-2013 |
20130345384 | ULTRASONIC-ASSISTED MOLDING OF PRECISELY-SHAPED ARTICLES AND METHODS - An ultrasonic-assisted injection molding system and method for making precisely-shaped articles. A source of ultrasonic energy is positioned to apply vibrational energy to a mold cavity connected to at least one gate in flow communication with a source of molten (co)polymer. The mold is heated to a temperature of 104-116° C., and the molten (co)polymer is injected into the mold cavity. After cooling the mold until the molten (co)polymer within the gate has solidified, ultrasonic energy is applied to the mold without remelting the solidified (co)polymer within the gate until the temperature increases to 116-122° C., thereby substantially relieving flow induced stresses. The mold is then cooled until the temperature decreases to 101-107° C., and is thereafter heated until the temperature increases to 116-122° C., thereby substantially relieving any thermally induced stresses. The mold is cooled until the molten (co)polymer has solidified, thereby forming a precision molded plastic optical element. | 12-26-2013 |
20140128811 | Microneedle Arrays - Microneedle arrays made by an injection molding process that uses ultrasonic energy to assist flow of polymer melt into a mold cavity, said microneedles having a high proportion (at least 60%) of fill, i.e., completely formed microneedles across the array. Microneedle array can be on a base or land no more than 250 μm thick. | 05-08-2014 |