Acrylic polymer coating compositions for coats and films that have reduced surface resistivity
First Claim
1. Coating compositions which produce clear film coatings with reduced surface resistivities from 106 to 1012 ohm/square comprising a choline based antistate in an amount of at least about 5% by weight, colloidal silica in an amount less than about 30% by weight, and a film-forming binder which is an acrylic or methacrylic polymer having a quaternary ammonium salt moiety in the polymeric molecule wherein the said quaternary ammonium moiety is present in the polymer at an amount of from about 5 to about 45 mole percent and a solvent-carrier material.
1 Assignment
0 Petitions
Accused Products
Abstract
Coating compositions for making films having reduced surface resistivity are described herein. These compositions are clear and produce films that are clear and transparent enough to read newsprint through the films. The compositions include colloidal silica, a choline based antistat, and a film-forming binder which is a (meth)acrylic polymer having a quaternary ammonium salt moiety in the polymeric molecule.
-
Citations
13 Claims
- 1. Coating compositions which produce clear film coatings with reduced surface resistivities from 106 to 1012 ohm/square comprising a choline based antistate in an amount of at least about 5% by weight, colloidal silica in an amount less than about 30% by weight, and a film-forming binder which is an acrylic or methacrylic polymer having a quaternary ammonium salt moiety in the polymeric molecule wherein the said quaternary ammonium moiety is present in the polymer at an amount of from about 5 to about 45 mole percent and a solvent-carrier material.
-
13. A coating composition which produces clear film coatings with reduced surface resistivities from 106 to 1012 ohm/square comprising a choline based antistat in an amount of from about 5 to about 9% by weight, colloidal silica in an amount of from about of from about 5 to about 30% by weight, and a film-forming binder which is an acrylic or methacrylic polymer having a quaternary ammonium salt moiety in the polymeric molecule wherein the said quaternary ammonium moiety is present in the polymer at an amount of from about 5 to about 45 mole percent and a solvent-carrier material, wherein further, the coating composition has a percent transmittance that is about 47% or greater at 400 nanometers of light.
Specification