Patent classifications
B29K2105/0038
THREE-DIMENSIONAL PRINTING WITH DUCTILITY AGENTS
The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of three-dimensional printing. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a ductility agent. The fusing agent can include water and electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The ductility agent can include water, a water-soluble pore-generating compound that chemically reacts at an elevated temperature to generate a gas, and a plasticizer. The plasticizer can have formula (I) wherein n is an integer ranging from 3 to 8; or formula (II) wherein m is an integer ranging from 3 to 8.
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Composition for Production of Polyvinylidene Chloride Monolayer Film with Improved Shrinkage and Food Wrapping Package Including Same
Provided is a monolayer film containing a vinylidene chloride-based copolymer composition containing a vinyl chloride comonomer-containing first polyvinylidene chloride copolymer (PVDC-VC); and a methyl acrylate comonomer-containing second polyvinylidene chloride copolymer (PVDC-MA), A crystallinity of the vinylidene chloride-based copolymer composition is 25 to 45%, Also provided is a container including the same, and a method for producing a monolayer film
Extrusion Die and Extrusion Method of Sheet Using the Same
The present invention relates to an extrusion die and a method for extruding a sheet using the same, and according to one aspect of the present invention, there is provided an extrusion die comprising a storage part configured to hold a raw material, the storage part defining a first width, a pressure part configured to move the raw material through the storage part, a first die defining a second width less than the first width, such that a flow width of the raw material becomes narrower, a second die in fluid communication with the first die, the second die defining a width that increases from the second width to a third width, such that the flow width of the raw material passing through the first die becomes wider and a flow thickness becomes smaller, and a heating part configured to heat the raw material passing through the second die.
POLYMER-BASED RESIN COMPOSITIONS DERIVED FROM CELLULOSE AND ARTICLES MADE USING THESE COMPOSITIONS
An injection molded article comprising a thin-walled body portion formed from a polymer-based resin derived from cellulose, wherein the thin-walled body portion comprises: i. a gate position; ii. a last fill position; iii. a flow length to wall thickness ratio greater than or equal to 100, wherein the flow length is measured from the gate position to the last fill position; and iv. a wall thickness less than or equal to about 2 mm; and wherein the polymer-based resin has an HDT or at least 95 C., a bio-derived content of at least 20 wt %, and a spiral flow length of at least 3.0 cm, when the polymer-based resin is molded with a spiral flow mold with the conditions of a barrel temperature of 238 C., a melt temperature of 246 C., a molding pressure of 13.8 MPa, a mold thickness of 0.8 mm, and a mold width of 12.7 mm.
POLYMER-BASED RESIN COMPOSITIONS DERIVED FROM CELLULOSE AND ARTICLES MADE USING THESE COMPOSITIONS
A shaped article comprising a polymer-based resin derived from cellulose, wherein the polymer-based resin has an HDT of at least 95 C., a bio-derived content of at least 20 wt %, a notched izod impact strength of greater than 80 J/m and at least one of the following properties chosen from: flexural modulus of greater than 1900 MPa; a spiral flow length or at least 3.0 cm; a flex creep deflection of less than 12 mm; a transmission of at least 70%; a E value of less than 25; or an L* color of at least 85.
Composition Of A Thin-Wall Extruded Device And A Method Of Producing The Thin-Wall Extruded Device
A composition including a biodegradable resin; a plant-based filler present in an amount of about 20 percent or more based on a total weight of the composition; one or more compatibilizers; and a plasticizer, a lubricant, or both; wherein the composition is configured to be extruded so that the composition forms a wall having a thickness from about 0.1 mm to 0.22 mm.
Extruded tubular films and processes for manufacturing tubular films
A process for manufacturing a tubular film such as an edible casing film or a packaging film. The process includes the steps of providing a preblended powder composition containing a polymer matrix, a plasticizer, and water; feeding the preblended powder composition to an extruder; heating the preblended powder composition to a temperature above 100 degrees Celsius for a sufficient time to fully hydrate the polymer matrix and to convert the powder composition to a flowable mass; and extruding the flowable mass through a tubular die of the extruder to form the tubular film. The tubular film comprises: about 40-75 wt % polymer matrix; about 10-35 wt % plasticizer; and about 10-35 wt % water. The polymer matrix component is fully hydrated under the temperature, pressure and shear conditions inside the extruder, and may have a component which is only fully hydrated at temperatures above about 100 degrees Celsius.
Fungal textile materials and leather analogs
Textile compositions comprising at least one filamentous fungus are disclosed, as are methods for making and using such textile compositions. Embodiments of the textile compositions generally include at least one of a plasticizer, a polymer, and a crosslinker, in addition to the filamentous fungus. The disclosed textile compositions are particularly useful as analogs or substitutes for conventional textile compositions, including but not limited to leather.
PRINTING OF BIOPOLYMERS FROM IONIC LIQUID
Compositions and methods of printing a three-dimensional (3D) article from a printing composition comprising a biopolymer are described. In addition to the biopolymer, the printing composition includes an ionic liquid solvent and optionally, a synthetic polymer. The method of printing the 3D article includes extruding the printing composition from a deposition nozzle moving relative to a substrate, depositing one or more layers comprising the printing composition in a predetermined pattern on the substrate, and treating the one or more layers to form the 3D article. The one or more layers deposited on the substrate can exhibit sufficient stiffness to maintain its shape once deposited, thus depositing the printing composition into a mold is not required. Treating the one or more layers can comprise coagulating the biopolymer and/or removing the ionic liquid solvent using an aqueous solvent.
THERMALLY STABLE CELLULOSE ESTER COMPOSITIONS AND ARTICLES MADE USING THESE COMPOSITIONS
A cellulose ester composition with heat distortion temperatures greater than 90 C. is provided comprising at least one cellulose ester and optionally at least one plasticizer. The cellulose ester compositions are useful for making articles such as eyeglass frames, automotive parts, and toys are also provided.