Method for in-situ differential melting of polymers and parts formed therefrom
US11534987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2020 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Feb 25, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2101/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming a composite part involves forming a layup comprising (a) preforms/flat form-factor feedstock, either of which includes a plurality of fibers and a matrix precursor, and (b) a differential-melt polymer. The matrix precursor and the differential-melt polymer differ as to at least one of thermal properties and rheological properties. The layup is subjected to controlled application of heat and pressure to melt the matrix precursor and differential-melt polymer. The polymers are then cooled to form a composite part that displays properties attributable to all the constituents. As a function of a variety of factors, the resulting part can be homogenous or heterogenous, and the properties can be localized or global throughout the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.