Method of multilayer die coating using viscosity adjustment techniques
US5962075A · kind A · utility
27Cited by
51References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/74
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for simultaneously coating multiple thin layers of relatively viscous fluids comprises the relative adjustment of the viscosity of the fluids in order to achieve a viscosity ratio in the optimum range without adversely affecting the adhesive properties of the fluids. In the preferrred method, viscosity is adjusted by varying the temperature of one or both fluids prior to coating and/or by reformulating the liquids to vary their relative viscosities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.