Flexible polyolefins masking film
AssigneeTredegar Film Products Corporation
InventorFarid F. Ghiam
Life of this patent
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Abstract
An improved masking film provides an adequate level of protection to relatively smooth surfaces by providing an adjustable and controlled level of adhesion between the masking film and the surface to be protected without the use of corona treatment or an adhesive under a variety of production and application conditions. The use of varying blends of materials and percentages thereof allows for control of the adhesion level produced between the improved masking film and the substrate surface to be protected. Using the improved masking film of the present invention, the masking film can be customized for a set of production conditions and desire application and will remain removably adhered to the substrate following a heat-loading process such as thermoforming, drape-forming or heat-bending.
Claims14
A masking film, comprising:
- a first side having a smooth surface;
- a second side having a rough surface;
- said smooth surface of the first side capable of removably adhering to a relatively smooth surface of a substrate due to intimate contact therewith;
- said first side further comprising one or more components preselected to affect the amount of adhesion produced between the smooth surface of the first side and the relatively smooth surface of the substrate at a given temperature include at least one primary component and at least one secondary component.
A masking film, comprising:
- a first side having a smooth surface;
- a second side having a rough surface;
- said smooth surface of the first side capable of removably adhering to a relatively smooth surface of a substrate due to intimate contact therewith;
- said first side further comprising at least one primary component and at least one secondary component preselected to affect the amount of adhesion produced between the smooth surface of the first side and the relatively smooth surface of the substrate at a given temperature;
- wherein the at least one primary component is a flexible polyolefin (FPO);
- and
- wherein the at least one secondary component is selected from the group consisting of polyolefins (homopolymer or copolymer), styrenes, butylenes, polyvinyl alcohols, nylons, polyesters, polyvinyl chlorides, polymethylpentene, polyoximethylene, and blends thereof.
Dependencies are inferred from the claim text.