Pigment-free coating compositions
US3986997A · kind A · utility
318Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Jun 25, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An acidic dispersion of colloidal silica and hydroxylated silsesquioxane in an alcohol-water medium is coated onto solid substrates, such as acrylic lenses, to provide an abrasion resistant coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.