Abstract: A cutting mechanism includes electrodes that are utilized to cut or score a non-conductive outer material of a filament or sheet. The electrodes contact a conductive reinforcing material of the filament or sheet to complete an electric circuit. Electric current flows through and heats the conductive material to oxidize or otherwise separate/cut the conductive material and any remaining non-conductive material.

Abstract: A method of fabricating (printing) parts utilizing flexible filaments includes anchoring a portion of a flexible filament to a substrate. A length of flexible filament is extended over the substrate while the flexible filament is in tension to thereby avoid buckling of the flexible filament. The flexible filament may comprise a thermoplastic material and fibers or other reinforcing materials whereby composite 3D parts can be fabricated.

Abstract: A method of fabricating composite articles includes supplying electrical current to an electrically conductive filament. The electrically conductive filament may include a first material that is electrically conductive and a polymer second material. The polymer second material comprises at least one of a thermoplastic polymer and a partially cured thermosetting polymer. The heated filament is deposited according to a predefined pattern in successive layers to adhere the polymer material of the layers together and build up a three dimensional article. The article includes strands of the first material embedded in a substantially continuous polymer matrix of the second material.

Abstract: A method of controlling an additive fabrication process includes providing a primary substrate and a test substrate. Polymer test material is extruded onto the test substrate utilizing an extrusion head. The extrusion head is moved relative to the test substrate, and a force required to move the extrusion head relative to the test substrate is measured to thereby generate test data. A part is fabricated by extruding polymer material onto the primary substrate utilizing the extrusion head. The test data is utilized to control at least one process parameter associated with extruding polymer material onto the primary substrate.

Abstract: A method of fabricating (printing) parts utilizing flexible filaments includes anchoring a portion of a flexible filament to a substrate. A length of flexible filament is extended over the substrate while the flexible filament is in tension to thereby avoid buckling of the flexible filament. The flexible filament may comprise a thermoplastic material and fibers or other reinforcing materials whereby composite 3D parts can be fabricated.

Abstract: A method of controlling an additive fabrication process includes providing a primary substrate and a test substrate. Polymer test material is extruded onto the test substrate utilizing an extrusion head. The extrusion head is moved relative to the test substrate, and a force required to move the extrusion head relative to the test substrate is measured to thereby generate test data. A part is fabricated by extruding polymer material onto the primary substrate utilizing the extrusion head. The test data is utilized to control at least one process parameter associated with extruding polymer material onto the primary substrate.

Abstract: A method of fabricating composite articles includes supplying electrical current to an electrically conductive filament. The electrically conductive filament may include a first material that is electrically conductive and a polymer second material. The polymer second material comprises at least one of a thermoplastic polymer and a partially cured thermosetting polymer. The heated filament is deposited according to a predefined pattern in successive layers to adhere the polymer material of the layers together and build up a three dimensional article. The article includes strands of the first material embedded in a substantially continuous polymer matrix of the second material.

Abstract: A cutting mechanism includes electrodes that are utilized to cut or score a non-conductive outer material of a filament or sheet. The electrodes contact a conductive reinforcing material of the filament or sheet to complete an electric circuit. Electric current flows through and heats the conductive material to oxidize or otherwise separate/cut the conductive material and any remaining non-conductive material.

Abstract: Epoxy resin compositions prepared using amino terminated fluoro alkyl ethers. The epoxy resin compositions exhibit low surface adhesion properties making them useful as coatings, paints, moldings, adhesives, and fiber reinforced composites.

Abstract: Epoxy resin compositions prepared using amino terminated fluoro alkyl ethers. The epoxy resin compositions exhibit low surface adhesion properties making them useful as coatings, paints, moldings, adhesives, and fiber reinforced composites.

Abstract: Inkjet ink compositions and methods for increasing inkjet ink particle stability are disclosed herein. In an embodiment, a latex polymer-containing inkjet ink composition comprises a secondary alcohol ethoxylate and a fluoro-surfactant at a concentration ratio effective to increase particle stability of the inkjet ink composition when the pigment particles are substantially electrostatically dispersed. In another embodiment, an inkjet ink composition comprises a latex dispersion having a conductivity of no more than about 1.5 mS/cm.

Abstract: An inkjet ink set includes eleven colored inks and a surface enhancing ink. The eleven colored inks include a magenta ink, a light magenta ink, a yellow ink, a cyan ink, a light cyan ink, a medium gray ink, a light gray ink, a photo black ink, a red ink, a green ink, and a blue ink. The surface enhancing ink is configured to enhance gloss of an image formed with at least one of the eleven colored inks.

Abstract: Inkjet ink compositions and methods for increasing inkjet ink particle stability are disclosed herein. In an embodiment, a latex polymer-containing inkjet ink composition comprises a secondary alcohol ethoxylate and a fluoro-surfactant at a concentration ratio effective to increase particle stability of the inkjet ink composition when the pigment particles are substantially electrostatically dispersed. In another embodiment, an inkjet ink composition comprises a latex dispersion having a conductivity of no more than about 1.5 mS/cm.

Abstract: The present invention is drawn to versatile ink-jet inks, ink-jet ink sets, and methods of printing images with improved quality when printed on both glossy coated media and on plain paper. In accordance with these embodiments, an ink-jet ink formulated for printing on plain paper and glossy coated media can comprise a liquid vehicle including water, an organic solvent, and an organic amine; and a polymer-encapsulated, acid-sensitive pigment colorant dispersed the liquid vehicle.

Abstract: An inkjet ink set includes eleven colored inks and a surface enhancing ink. The eleven colored inks include a magenta ink, a light magenta ink, a yellow ink, a cyan ink, a light cyan ink, a medium gray ink, a light gray ink, a photo black ink, a red ink, a green ink, and a blue ink. The surface enhancing ink is configured to enhance gloss of an image formed with at least one of the eleven colored inks.

Abstract: A colorless ink jet ink composition is provided for printers for printing on both porous and hybrid glossy or semi-glossy media. The ink composition comprises a water soluble polymer or dispersed latex. The ink formulation provides substantially air fast, stain resistant, and light fastness to the printed image. Further, the ink formulation evidences improved overall image quality.

Abstract: An exemplary embodiment of the invention relates to a method, system, and storage medium for gathering, developing, and disseminating announcement and offering information in a collaborative network environment. The method comprises gathering offering information during initial stages of the offering development cycle; collaboratively reviewing the offering information among individuals assigned to a pre-defined set of business roles; and disseminating final offering information to individuals assigned to a pre-defined set of business roles as a result of the collaborative review. The collaborative review is performed at a desired time period during the offering development cycle. Other embodiments include a system and a storage medium.

Abstract: The present invention provides ink-jet inks for ink-jet printing, comprising from 0.1% to 5% by weight of at least one dye; from 8% to 20% by weight of a diol selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, and combinations thereof; from 0.1% to 5% by weight of an aliphatic alcohol or aliphatic alcohol mixture; and from 0.1% to 1.5% by weight of at least one component independently selected from the group consisting of buffers, biocides, and metal chelators, with the proviso that no surfactant is present in the ink-jet ink composition. The ink-jet inks formulated according to the present invention provide good dot size, color-to-color bleed alleviation, improved coalescence, less chia, and improved print head materials compatibility.

Abstract: The present invention provides ink-jet inks for ink-jet printing, comprising from 0.1% to 5% by weight of at least one dye; from 8% to 20% by weight of a diol selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, and combinations thereof; from 0.1% to 5% by weight of an aliphatic alcohol or aliphatic alcohol mixture; and from 0.1% to 1.5% by weight of at least one component independently selected from the group consisting of buffers, biocides, and metal chelators, with the proviso that no surfactant is present in the inkjet ink composition. The ink-jet inks formulated according to the present invention provide good dot size, color-to-color bleed alleviation, improved coalescence, less chia, and improved print head materials compatibility.