Mottle prevention film or coating

Details Mottle prevention film or coating Mottle prevention film or coating

1995-02-24

1997-03-18

Davis, Jenna

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Protective layer

428 418, 428352, 428354, C09J 702

Patent

active

056121075

ABSTRACT:
A composite construction is described which comprises (A) a layer of plasticized polymer film having a face side and a back side; (B) a release-coated liner having one surface in contact with the back side of the layer of plasticized polymer film; and either (C) a plasticizer-resistant polymer backcoating on the other surface of the release-coated liner (B) which is essentially impervious to the plasticizer in (A); or (D) a removable plasticizer-resistant polymer film in contact with the face side of the layer of plasticized polymer film (A). Such composite constructions are capable of being wound upon themselves in roll form and may be readily unwound for use. When unwound, the presence of mottling on the surface of the vinyl film is observed to be minimized or eliminated.
The invention also relates to a method of preventing the formation of mottling when composites comprising at least a layer of plasticized polymer film and a release-coated liner are either wound upon themselves to form a roll or stacked upon each other. The method comprises applying a plasticizer-resistant polymer backcoating on the surface of the release-coated liner which is not in contact with the plasticized polymer film, or contacting the surface of the plasticized polymer film opposite the release-coated liner with a removable plasticizer-resistant polymer film.

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High Solids Amino Crosslinking Agents, American Cyanamid Company.

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