Low refractive index glass microsphere coated article having a smooth surface and a method for preparing same
US5620775A · kind A · utility
77Cited by
10References
43Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Nov 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/268
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to glass microsphere (bead) coated articles having an upper surface comprising a layer of low refractive index transparent glass microspheres such as those made from recycled ordinary glass. The articles of the invention have an extremely smooth tactile feel and a low friction surface even though they can be prepared from glass microspheres intermixed with abrasive irregularly shaped glass particles. The invention also relates to the method making the bead coated articles of the invention and transfer articles that can be used to make the bead coated articles of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.