Thermal treatment of glass
US4372774A · kind A · utility
25Cited by
4References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1981 |
| Grant date | Feb 8, 1983 |
| Priority date | — |
| Expiry date | Jul 21, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B27/052
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The thermal treatment of glass is effected by contacting the glass, when it is hot, with a gas-fluidized mixture of particulate materials, at least one of which is selected to have gas-generating properties when heated by the hot glass. The materials are mixed in selected pre-determined proportions which impart to the mixture a thermal capacity and flowability which are such that a required thermal treatment is achieved. The method is particularly suitable for the thermal toughening of glass sheets for vehicle windscreens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.