Matting lacquer, paint and light-transmitting matte film
US4719141A · kind A · utility
Inventor
Key dates
| Filing date | Apr 21, 1987 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Apr 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/254
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A sprayable matting lacquer is preferably applied to a transparent or translucent polymeric base film to provide the composite film with desired non-streaking matte properties so that such film becomes suitable for use by artists and the like. The matting lacquer includes a plastic resin film-forming agent, a soft matting agent formed of discrete uniformly spherical, smooth-surfaced polyolefin, preferably polyethylene particles having an average diameter not in excess of about 40 microns and perferably 10-40 microns and in a ratio of 1-3:3-1 to the resin, a relatively hard matting agent composed of particles of silica, calcium cabonate or the like, in a concentration of about 10% that of the soft matting agent, an organic solvent for the film-former and a plasticizer. The aqueous paint which is utilizable on the matter film includes the described soft matting agent, a resinous film-forming binder and dispersing agent, as well as a transparent coloring agent. This composition without the coloring agent can be used as a diluent for the paint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.