Multilayer graphic article with color layer
AssigneeMinnesota Mining and Manufacturing Company
InventorsChia-Tie Ho, Carl W. McMullen, Raymond M. Sawka
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Abstract
A multilayer graphic article comprises a substrate, at least one color layer disposed on the substrate, and a protective surface layer that overlies the substrate and the color layer. The color layer is visible through the surface layer and comprises a color agent in a copolymeric binder. The binder comprises the copolymerization product of an olefinic monomer and a second monomer having a pendant carboxyl group. The substrate may be a polymeric film, an adhesive or a temporary, removable liner. The protective surface layer may be formulated to impart interior surface protection properties to the graphic article or it may be formulated to render the graphic article weatherable and resistant to chemical exposure.
Claims35
A multilayer graphic article comprising a substrate, at least one color layer disposed on the substrate, and a protective surface layer that overlies the substrate and the color layer, the color layer being intermediate the substrate and the surface layer and visible through the surface layer, wherein the substrate is a polymeric film formed from a material selected from the group consisting of alpha-olefins, ethylene-modified copolymers and terpolymers, polyurethanes and rubbery polymers, and further wherein the color layer comprises a color agent in a crosslinked copolymeric binder that is blended or supplemented with a polyurethane dispersion secondary binder, the copolymeric binder comprising the copolymerization product of an olefinic monomer and a second monomer having a pendant carboxyl group, the copolymeric binder having the formula:
- ##STR2## wherein R.sub.1 is selected from the group consisting of hydrogen and C.sub.1-6 alkyl groups;
- R.sub.2 is selected from the group consisting of H, C.sub.1-6 alkyl groups, R.sub.3 --COOH wherein R.sub.3 is any alkyl group, --CN, and ester groups;
- X and Y are independently selected from the group consisting of residues of the olefinic monomer and residues of the second monomer;
- n is a number selected such that the olefinic monomer provides 99 to 70 mol-% of the copolymeric binder:
- and m is a number selected such that the second monomer correspondingly provides 1 to 30 mol-% of the copolymeric binder;
- the formula including basic salts thereof.
A multilayer graphic article comprising a pressure sensitive adhesive layer for bonding the multilayer graphic article to a surface, at least one color layer disposed on the pressure sensitive adhesive layer, a polymeric film layer disposed over the color layer, and a protective surface layer that overlies the polymeric film layer, the color layer being visible through the polymeric film layer and the protective surface layer, wherein the color layer comprises a color agent in a crosslinked copolymeric binder that is blended or supplemented with a polyurethane dispersion secondary binder, the copolymeric binder comprising the copolymerization product of an olefinic monomer and a second monomer having a pendant carboxyl group, the copolymeric binder having the formula:
- ##STR3## wherein R.sub.1 is selected from the group consisting of hydrogen and C.sub.1-6 alkyl groups;
- R.sub.2 is selected from the group consisting of H, C.sub.1-6 alkyl groups, R.sub.3 --COOH wherein R.sub.3 is any alkyl group, --CN, and ester groups;
- X and Y are independently selected from the group consisting of residues of the olefinic monomer and residues of the second monomer;
- n is a number selected such that the olefinic monomer provides 99 to 70 mol-% of the copolymeric binder;
- and m is a number selected such that the second monomer correspondingly provides 1 to 30 mol-% of the copolymeric binder;
- the formula including basic salts thereof.
Dependencies are inferred from the claim text.