Abstract: Suture containing filaments of ultra-high molecular weight polyethylene (UHMwPE), characterized in that the suture contains a multi-filament yarn that is obtained by a process comprising the steps of: a) Providing a mixture containing UHMwPE, a spinning solvent and a pigment b) Spinning a multi-filament yarn from the mixture by the gel spinning process.

Abstract: Various embodiments herein each include at least one of systems, methods, software, and devices for precise location and projection by radio beacon signals. One such embodiment, in the form of a method that may be performed in whole on a mobile device or on a mobile device in communication with a server based system. The method includes iteratively determining an unfiltered location. The unfiltered location is determined based on at least three received beacon signals and beacon location data retrieved from a database for the beacons from which the beacon signals were received. The method then applies a triangulation algorithm to the beacon location data. The method may continue in some embodiments by then determining a filtered location based on recent unfiltered locations while disregarding unfiltered locations determined to be bad signals. A path may then be projected based on filtered and unfiltered locations.

Abstract: The invention relates to ballistic resistant article having a multilayered material sheet which includes a consolidated stack of unidirectional monolayers of drawn polymer, whereby the draw direction of two subsequent monolayers in the stack differs. At least one monolayer comprises a plurality of unidirectional tapes of the drawn polymer, aligned in the same direction, whereby adjacent tapes do not overlap. The invention also relates to a process for the preparation of the multilayered material sheet, and to a ballistic resistant article comprising the multilayered material sheet.

Abstract: The invention relates to a multistage drawing process for the drawing of polymeric elongated objects, containing a first drawing stage and a final drawing stage and optionally containing at least one intermediate drawing stage subsequent to the first drawing stage and prior to the final drawing stage, comprising in the following order the steps of: a. providing a polymeric elongated feed object; b. drawing the elongated object in the first drawing stage with a draw ratio of between 30% and 90% of the maximum drawing ratio achievable in the first drawing step; c. optionally drawing the elongated object in the at least one intermediate drawing stage with a draw ratio of between 30% and 90% of the maximum drawing ratio achievable in the at least one intermediate drawing step; d. drawing the elongated object in the final drawing stage with a draw ratio of at most 5, preferably of at most 3.

Abstract: Processes for removing residual spin solvent from a gel spun, UHMwPE filament having an effective diameter of above 16 ?m, comprise the steps of removing residual spin solvent from the filament to a level of below 100 ppm at elevated temperature, while keeping the filament taut. Gel spun UHMwPE filaments having an effective diameter of above 16 ?m and a residual spin solvent residue of less than 100 ppm are also provided. Preferably the filament has a creep rate, measured at 50° C., under a load, so that the initial stress is 600 MPa, of less than 5·10?6 sec?1.

Abstract: Process for removing residual spin solvent from a gel spun, UHMwPE filament having an effective diameter of above 16 ?m, comprising the steps of: removing residual spin solvent from the filament to a level of below 100 ppm at elevated temperature, while keeping the filament taut. The invention also relates to gel spun UHMwPE filament having an effective diameter of above 16 ?m and a residual spin solvent residue of less than 100 ppm. Preferably the filament has a creep rate, measured at 50° C., under a load, so that the initial stress is 600 MPa, of less than 510?6 sec?1.

Abstract: Gel-spinning processes for producing a high tensile strength ultra high molecular weight polyethylene (UHMWPE) multifilament yarn comprising ultra-low dtex filaments, include applying a draw ratio DRfluid to fluid filaments obtained by spinning a solution of UHMWPE through a spinneret and into an air gap, is at least 450, wherein DRfluid=DRsp×DRag, the DRsp and DRag being the draw ratios in the spinholes and in the air gap, respectively; and provided that DRag is at least 30. The UHMWPE multifilament yarns produced thereof were characterized by a tensile strength of at least 3.5 GPa and contained filaments having a dtex of at most 0.5. The invention further relates to products comprising said yarns, e.g. fabrics, medical devices and composite and ballistic articles.

Abstract: A technique is introduced that enables a server to establish trust of and a secure channel of communication with an unverified client computer, which can be on a different insecure network. To establish trust, the server needs to ensure that the client computer is legitimate, and the client computer similarly needs to ensure that the server is legitimate. With mutual trust established, a secure channel of communication is established between the server and the client computer. With mutual trust and a secure channel of communication established, the client computer can safely communicate with the server, for example, to download software that enables the client computer to join a central management system at the server.

Abstract: Gel-spinning processes for producing a high tensile strength ultra high molecular weight polyethylene (UHMWPE) multifilament yarn comprising ultra-low dtex filaments, include applying a draw ratio DRfluid to fluid filaments obtained by spinning a solution of UHMWPE through a spinneret and into an air gap, is at least 450, wherein DRfluid=DRsp×DRag, the DRsp and DRag being the draw ratios in the spinholes and in the air gap, respectively; and provided that DRag is at least 30. The UHMWPE multifilament yarns produced thereof were characterized by a tensile strength of at least 3.5 GPa and contained filaments having a dtex of at most 0.5. The invention further relates to products comprising said yarns, e.g. fabrics, medical devices and composite and ballistic articles.

Abstract: The invention relates to a process for making high-performance polyethylene multi-filament yarn comprising the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRfluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRsolid of at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DRfluid=DRsp*DRag of at least 150, wherein DRsp is the draw ratio in the spinholes and DRag is the draw ratio in the air-gap, with DRsp being greater than 1 and DRag at least 1.

Abstract: The invention relates to a process for producing gel-spun ultra high molecular weight polyethylene (UHMWPE) fibres having high tensile strengths and improved creep rates wherein the UHMWPE used in said process is characterized by a difference in the phase angle according to Formula 1 ??=?0.001??100??(1) of at most 42°, wherein ?0.001 is the phase angle at an angular frequency of 0.001 rad/sec; and ?100 is the phase angle at an angular frequency of 100 rad/sec as measured with a frequency sweep dynamic rheological technique at 150° C. on a 10% solution of UHMWPE in paraffin oil, provided that ?100 is at most 18°. The invention further relates to gel-spun UHMWPE fibres produced thereof. The gel-spun UHMWPE fibres of the invention have a tensile strength of at least 4 GPa, and a creep rate of at most 5×10?7 sec?1 as measured at 70° C. under a load of 600 MPa.

Abstract: The invention relates to a process for producing gel-spun ultra high molecular weight polyethylene (UHMWPE) fibres having high tensile strengths and improved creep rates wherein the UHMWPE used in said process is characterized by a difference in the phase angle according to Formula (1) ??=?0.001??100 of at most 42°, wherein ?0.001 is the phase angle at an angular frequency of 0.001 rad/sec; and ?100 is the phase angle at an angular frequency of 100 rad/sec as measured with a frequency sweep dynamic rheological technique at 150° C. on a 10% solution of UHMWPE in paraffin oil, provided that ?100 is at most 18°. The invention further relates to gel-spun UHMWPE fibres produced thereof. The gel-spun UHMWPE fibres of the invention have a tensile strength of at least 4 GPa, and a creep rate of at most 5×10?7 sec?1 as measured at 70° C. under a load of 600 MPa.

Abstract: Ballistic-resistant assemblies include monolayers formed of high-performance polyethylene multi-filament yarns. The assemblies have an areal density of at least 1.5 kg/m2 and a specific energy absorption of at least 300 J·m2/kg as measured against a 9*19 mm FMJ Parabellum bullet according to a test procedure based on Stanag 2920.

Abstract: The invention relates to a multistage drawing process for the drawing of polymeric elongated objects, containing a first drawing stage and a final drawing stage and optionally containing at least one intermediate drawing stage subsequent to the first drawing stage and prior to the final drawing stage, comprising in the following order the steps of: a. providing a polymeric elongated feed object; b. drawing the elongated object in the first drawing stage with a draw ratio of between 30% and 90% of the maximum drawing ratio achievable in the first drawing step; c. optionally drawing the elongated object in the at least one intermediate drawing stage with a draw ratio of between 30% and 90% of the maximum drawing ratio achievable in the at least one intermediate drawing step; d. drawing the elongated object in the final drawing stage with a draw ratio of at most 5, preferably of at most 3.

Abstract: A shade matching device for at least one artificial tooth or crown restoration is disclosed comprising eight shade guides held by three gingival colored holders. The shade guides are grouped by value and arranged within a particular value by chroma. A method for determining natural tooth shade is also disclosed. Images of the target tooth are captured with the shade guides placed adjacent to the target tooth. Preferably, additional images are captured to provide additional data, including images when the patient's lips are formed in a smile; in the M position; and retracted. A close-up image of the patient's teeth is also captured along with an image that includes the patient's full face.

Abstract: The invention relates to a multilayered material sheet comprising a consolidated stack of unidirection monolayers of drawn ultra high molecular weight polyolefine. The draw direction of two subsequent monolayers in the stack differs. Moreover the thickness of at least one monolayer does not exceed 50 ?m, and the strength of at least one monolayer is comprised between 1.2 GPa and 3 GPa. The invention also relates to a ballistic resistant article comprising the multilayered material sheet and to a process for the preparation of the ballistic resistant article.

Abstract: The invention relates to a multilayered material sheet comprising a consolidated stack of unidirectional monolayers of drawn polymer, whereby the draw direction of two subsequent monolayers in the stack differs. At least one monolayer comprises a plurality of unidirectional tapes of the drawn polymer, aligned in the same direction, whereby adjacent tapes do not overlap. The invention also relates to a process for the preparation of the multilayered material sheet, and to a ballistic resistant article comprising the multilayered material sheet.

Abstract: The invention relates to a multilayered material sheet comprising a consolidated stack of unidirectional monolayers of drawn polymer, whereby the draw direction of two subsequent monolayers in the stack differs. At least one monolayer comprises a plurality of unidirectional tapes of the drawn polymer, aligned in the same direction, whereby adjacent tapes do not overlap. The invention also relates to a process for the preparation of the multilayered material sheet, and to a ballistic resistant article comprising the multilayered material sheet.

Abstract: The invention concerns a high performance polyethylene (HPPE) member comprising at least 5 wt-% of a radiopaque component, the HPPE member is biocompatible and the radiopaque component is a particulate at least partially arranged inside a HPPE filament of the HPPE member. Furthermore, the radiopaque component has a particle size of at most 1 ?m, preferably the radiopaque component has a particle size if at most 0.5 ?m. The invention also concerns a method of making the HPPE member and various medical devices and repair products comprising the HPPE member.

Abstract: Processes for making high-performance polyethylene multi-filament yarns include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRfluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRsolid of at least 4.