Scratch resistant antireflective coatings for synthetic resins
US4719146A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1985 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Oct 21, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Scratch resistant and antireflective coatings for synthetic resins, said coatings having a refractive index differing from the value 1.45 by at least 0.01 unit and a thickness ranging from 1 to 40 microns and comprising PA0 (1) (a) an acrylate and/or methacrylate polymer, and/or PA0 (b) an organosilicon polymer, or PA0 (c) a melamine resin; and PA0 (2) from 0.1 to 10 weight percent of amorphous, porous silicic acid having a large pore volume from 0.1 to 5 ml/g and consisting of primary particles of an average diameter ranging from 1 to 50 microns; synthetic resin substrates having such a coating thereon; coating compositions for applying such a coating to a substrate; and methods for making such coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.