Gel casting method and apparatus
US5061336A · kind A · utility
156Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 1989 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | May 1, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gel casting method and apparatus are used to cause a pre-gelled liquid mixture to gel sequentially in a given travelling direction, allowing still-liquid material to flow to the gelling front, replacing volume lost due to shrinkage during the change of state from a liquid to a gel. The differential gelling method provides stress-free gels free of voids common to highly stressed gels, and the method is applicable to column and slab gels, and particularly to capillary columns and very thin slab gels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.