Method and apparatus for evaluating the degree of cure in polymeric composites
US4874948A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1987 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Dec 28, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C35/0288
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The degree of cure in a polymeric composite is evaluated in a simple, rapid and non-destructive manner by heating a surface portion of the polymeric composite to substantially curing temperature, over a predetermined period of time, and continuously monitoring with a non-contact temperature sensor temperature fluctuations of the heated surface portion during the predetermined period of time to obtain data comprising surface temperature values measured as a function of time. By processing such data including comparing with a calibration reference, for example by providing a curve of the measured surface temperature values against time and comparing with a reference curve, one can evaluate the degree of cure of the polymeric composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.