Patent classifications
B29K2105/0088
THREE-DIMENSIONAL BODY IMPLANTS
Three-dimensional body implants including a hydrogel, which includes cross-linked alginate and gelatin, and in particular breast implants. The hydrogel of the implants has a mechanical strength of 1 kPa to 1000 kPa, and the hydrogel of the implants may further include fibrinogen. The implants include a porous zone, and the implants are acellular, i.e., free of cells during their manufacture.
SINGLE-LAYER CONTAINER, MANUFACTURING METHOD THEREOF, AND RECYCLED POLYESTER MANUFACTURING METHOD
Provided is a single-layer container containing a polyester resin (X), a polyamide resin (Y), a blue colorant (A), and a red colorant (B). The content of the polyamide resin (Y) is from 0.05 to 7.0 mass%, and the content of the blue colorant (A) is from 1 to 40 ppm.
PIEZOELECTRIC COMPOSITES HAVING IMMISCIBLE POLYMER MATERIALS AND USE THEREOF IN ADDITIVE MANUFACTURING
Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer matrix comprising a first polymer material and a second polymer material that are immiscible with each other, and a plurality of piezoelectric particles located in at least a portion of the polymer matrix. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.
WATERPROOFING AND BREATHABLE POLYOLEFIN ROOFING MEMBRANE BY EXTRUSION LAMINATION AND SEQUENTIAL STRETCHING
Reinforced microporous polyolefin sheets comprise one or more layers of a microporous polyolefin and a non-woven fabric at least partially embedded in the microporous polyolefin. The reinforced microporous polyolefin sheet is made in an extrusion lamination process by which a polyolefin sheet and non-woven fabric are laminated, followed by sequential cold and hot stretching steps to produce the micropores.
PIEZOELECTRIC COMPOSITES COMPRISING COVALENTLY BONDED PIEZOELECTRIC PARTICLES AND USE THEREOF IN ADDITIVE MANUFACTURING
Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer material comprising at least one thermoplastic polymer, and a plurality of piezoelectric covalently bonded to the at least one thermoplastic polymer and dispersed in at least a portion of the polymer material. The compositions are extrudable and may be pre-formed into a form factor suitable for extrusion. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.
PIEZOELECTRIC COMPOSITES FEATURING NONCOVALENT INTERACTIONS AND USE THEREOF IN ADDITIVE MANUFACTURING
Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles non-covalently interacting with at least a portion of a polymer material via π-π bonding, hydrogen bonding, electrostatic interactions stronger than van der Waals interactions, or any combination thereof. The piezoelectric particles may be dispersed in the polymer material and remain substantially non-agglomerated when combined with the polymer material. The polymer material may comprise at least one thermoplastic polymer, optionally further including a polymer precursor. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.
Methods and apparatus to facilitate plastic film processing
A system includes a film processing module, a processor, and memory. The processor and memory are in communication with the film processing module. The processor is configured to dynamically coordinate movement of the film processing module relative to a moving web of film and to perform a function on the web of film with the film processing module.
EXTRUSION ADDITIVE MANUFACTURING PROCESS FOR PRODUCING POLYETHYLENE ARTICLES
An extrusion additive manufacturing process including the step of extruding a polyethylene composition having a melt flow index MIE of at least 0.1 g/10 min., the composition made from or containing: A) from 1% to 40% by weight of a polyethylene component having a weight average molar mass Mw, as measured by GPC (Gel Permeation Chromatography), equal to or higher than 1,000,000 g/mol; B) from 1% to 95% by weight of a polyethylene component having a Mw value from 50,000 to 500,000 g/mol; and C) from 1% to 59% by weight of a polyethylene component having a Mw value equal to or lower than 5,000 g/mol.
High-barrier biodegradable Doypack and preparation method therefor
A high-barrier biodegradable Doypack and a preparation method therefor. The Doypack consists of two parts, a high-barrier biodegradable self-sealing strip and a five-layered composite high-barrier biodegradable Doypack body. The main base materials of the high-barrier biodegradable self-sealing strip are PLGA and PPC that have excellent barrier performance; and the five-layered composite high-barrier biodegradable Doypack body consists of single side glossy white Kraft paper, a bonding layer, a first barrier layer, a second barrier layer, and a heat-sealing layer, which are integrally formed by using a process combining four-layer co-extrusion and lamination. Compared to conventional non-degradable Doypacks, the high-barrier biodegradable Doypack is substantially equivalent in terms of the physical and mechanical performance and heat-sealing performance, but has a superior barrier performance, and is biodegradable.
CORE-SHEATH FILAMENTS INCLUDING POLYISOBUTYLENE COMPOSITIONS AND METHODS OF PRINTING THE SAME
Provided are amorphous polyolefin compositions that can be dispensed digitally as the core in a core-sheath construction. These formulations provide dependable adhesion to both polar and non-polar surface in addition to providing a high barrier to air and moisture which is beneficial in many applications. These formulations and the method of processing these formulations provide many benefits, including low VOCs, avoiding die cutting, design flexibility, achieving intricate nonplanar bonding patterns, printing on thin and/or delicate substrates, and printing on an irregular and/or complex topography, no need for release liners or low-adhesion backsize, and no need for a post-processing step.