Apparatus for determining resin gel time
US4947679A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Apr 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N11/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The specification discloses a method and apparatus for determining the gel time of thermoset resins by using a disposable vial, a disposable spindle for insertion into the vial, a locking collar releasably secured to the disposable vial for mounting the vial in a permanent sample cup and holding it against rotation with respect thereto, and a spindle adaptor releasably receiving the disposable spindle for mounting same to the spindle mount of a conventional viscometer. The thermoset resin is located in the disposable vial along with the disposable spindle. The permanent sample cup including the disposable vial and its contents is located in a heater and the spindle adaptor is secured to the spindle mount of the viscometer. The viscometer is operated and the gel time is determined as the length of time it takes until the viscosity of the heated resin sample begins to increase sharply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.