Smooth compliant belt for use with molding roller
View Patent ↗The invention relates to an apparatus and method of making a solid film. Viscous material ( 163 ) is input into a nip between a patterned roller ( 165 ) and a belt ( 167 ). The nip between the patterned roller ( 165 ) and belt ( 167 ) is facilitated by a compliant roller ( 169 ). Accordingly, a film may be produced that has discrete optical elements and a smooth backside.
1. A compliant pressure belt comprising an endless belt comprising at least one elastomeric layer and one metal layer, wherein the outside surface of said belt has a roughness average less than 50 nanometers and a hardness between 90 Shore A and 50 Shore D, wherein said at least one elastomeric layer comprises a first elastomeric layer and a second elastomeric layer; said first elastomeric layer and said second elastomeric layer differ in hardness; and said first elastomeric layer is toward the inside of the belt in relation to the second elastomeric layer.
2. The compliant pressure belt of claim 1 , wherein said at least one metal layer is on the outside of said belt.
3. The compliant pressure belt of claim 2 , comprising a metal layer on the inside of said belt.
4. The compliant pressure belt of claim 1 , wherein the first elastomeric layer has a greater hardness than the second elastomeric layer.
5. The compliant pressure belt of claim 1 , wherein the second elastomeric layer has a greater hardness than the first elastomeric layer.
6. The compliant pressure belt of claim 1 wherein said at least one elastomeric layer comprises nanoclay particles in an amount of between 0.2 and 5 weight percentage in the layer having particles present.
7. The compliant pressure belt of claim 1 , wherein said belt has a circumference between 0.75 and 10 meters and a width between 0.5 and 2 meters.
8. The compliant pressure belt of claim 1 , wherein said at least one elastomeric layer is on the outside of said belt and said at least one elastomeric layer comprises between 1 and 10 percentage by weight of a polymer having a surface energy between 22 and 35 dynes per square centimeter.
9. The compliant pressure belt of claim 1 , wherein said belt is provided with timing protuberances on the inside of said belt.
10. The compliant pressure belt of claim 1 , wherein said metal layer is provided with a three-dimensionalpattern.
11. A compliant pressure belt comprising an endless belt comprising at least one elastomeric layer and one metal layer, wherein the outside surface of said belt has a roughness average less than 50 nanometers and a hardness between 90 Shore A and 50 Shore D, wherein said at least one elastomeric layer comprises reinforcing fibers substantially oriented in one direction.