Low shear process for producing polymer composite fibers
US10137617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2015 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Mar 1, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2101/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for producing a polymer composite fiber comprised of a polymer matrix with filaments incorporated therein whose lengthwise dimensions are substantially oriented with the axial dimension of the composite fiber, the method comprising subjecting a melt comprised of a polymer matrix and filaments to an extrusion process in which the melt is extruded into a fibrous form in the absence of screw extruders and in the substantial absence of shear forces that result in breakage of the filaments, followed by cooling and solidification of the extruded melt to provide the polymer composite fiber. Integration of these polymer composite fibers with additive manufacturing technologies, particularly rapid prototyping methods, such as FFF and 3D printing, are also described. The resulting polymer composite fibers and articles made thereof are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.