PROCESS AND APPARATUS FOR COATING WITH REDUCED DEFECTS
First Claim
1. A process for a polymer coating, comprising:
- coating a first solution comprising a polymerizable material in a solvent on a substrate;
polymerizing a first portion of the polymerizable material, forming a homogenous composition comprising a partially polymerized material in a second solution, wherein the second solution is partially depleted of the polymerizable material;
removing a major portion of the solvent from the homogeneous composition.
1 Assignment
0 Petitions
Accused Products
Abstract
A process and apparatus for producing a polymer coating with reduced defects is described. The process includes coating a solution of a polymerizable material and a solvent on a substrate, polymerizing a portion of the polymerizable material, and removing a major portion of the solvent after polymerization of the portion of polymerizable material. A further polymerization of any remaining polymerizable material can occur after removal of the solvent. The apparatus includes a webline for conveying a substrate from an unwind roll to a windup roll, a coating section proximate the unwind roll for coating a solution of a polymerizable material and a solvent on the substrate, a polymerization section downweb from the coating section for polymerizing a portion of the polymerizable material, and a solvent removal section downweb from the polymerization section for removing the solvent after polymerization of the portion of the polymerizable material.
-
Citations
35 Claims
-
1. A process for a polymer coating, comprising:
-
coating a first solution comprising a polymerizable material in a solvent on a substrate; polymerizing a first portion of the polymerizable material, forming a homogenous composition comprising a partially polymerized material in a second solution, wherein the second solution is partially depleted of the polymerizable material; removing a major portion of the solvent from the homogeneous composition. - View Dependent Claims (2, 3, 11, 12, 13, 15, 17, 20, 21, 25)
-
-
4-10. -10. (canceled)
-
14. The process of claim 13, wherein a substantial portion of the reactive nanoparticles form a chemical bond with the partially polymerized material.
-
16. (canceled)
-
18-19. -19. (canceled)
-
22-14. -14. (canceled)
-
26. An apparatus, comprising:
-
a webline for conveying a substrate downweb from an unwind roll to a windup roll; a coating section disposed proximate the unwind roll and capable of coating a first solution comprising a polymerizable material in a solvent onto the substrate; a polymerization section disposed downweb from the coating section and capable of polymerizing a first portion of the polymerizable material, forming a homogenous composition comprising a partially polymerized material in a second solution, wherein the second solution is partially depleted of the polymerizable material; a solvent removal section disposed downweb from the polymerization section, capable of removing a major portion of the solvent from the homogeneous composition. - View Dependent Claims (27, 28, 29, 30, 31, 33, 34)
-
-
32. (canceled)
-
35. (canceled)
Specification