Adhesive notepad
View Patent ↗A flexible adhesive notepad has a tacky elastomeric layer made of a naphthenic oil-impregnated thermoplastic rubber, and a face layer made of a polymer film permanently adhered to the elastomeric layer by an oil-based adhesive. The face layer has graphics to emulate a notebook. The graphics include an image of a blank sheet of a bound notebook. The face layer and elastomeric layer have a common periphery that emulates a notebook. The periphery has the shape of a bound notebook.
1. A notepad comprising:
an adhesive layer comprised of an oil-impregnated thermoplastic rubber having a thickness from 0.5 mm to 2.0 mm;
a face layer permanently adhered to the adhesive layer and having a planar outer dry-erase surface, the face layer comprising graphics which indicate a plurality of evenly spaced holes adjacent one edge thereof and which indicate a plurality of binder rings inserted through said holes to emulate a bound notebook; and
the adhesive and face layers together comprise a peripheral shape having a plurality of evenly-spaced rounded bumps protruding from said one edge adjacent said graphics, each of said rounded bumps surrounding one of said binder rings.
2. The notepad of claim 1 wherein the dry-erase surface comprises a polymer film from the group of materials including polycarbonate, polyethylene, and polyethylene-terephthalate.
3. The notepad of claim 2 wherein the thermoplastic rubber is from the group including styrene thermoplastic elastomer, styrene-butadiene-styrene block copolymer, and styrene-ethylene-butadiene-styrene block copolymer.
4. The notepad of claim 3 wherein the impregnating oil is from the group including hydrogenated naphthenic oil, mineral oil, and a combination of hydrogenated naphthenic oil and mineral oil.
5. The notepad of claim 4 wherein the adhesive layer comprises one-hundred parts thermoplastic rubber by weight, one-hundred to three-hundred parts hydrogenated naphthenic oil by weight, one-hundred to three-hundred parts mineral oil by weight, less than ten parts petroleum tackifier resin by weight, and one to five parts polypropylene resin by weight.
6. The notepad of claim 1 wherein the thy-erase surface comprises a polymer film from the group of materials including polycarbonate, polyethylene, and polyethylene-terephthalate.
7. The notepad of claim 6 wherein the thermoplastic rubber is from the group including styrene thermoplastic elastomer, styrene-butadiene-styrene block copolymer, and styrene-ethylene-butadiene-styrene block copolymer.
8. The notepad of claim 7 wherein the impregnating oil is from the group including hydrogenated naphthenic oil, mineral oil, and a combination of hydrogenated naphthenic oil and mineral oil.
9. The notepad of claim 8 wherein the adhesive layer comprises one-hundred parts thermoplastic rubber by weight, one-hundred to three-hundred parts hydrogenated naphthenic oil by weight, one-hundred to three-hundred parts mineral oil by weight, less than ten parts petroleum tackifier resin by weight, and one to five parts polypropylene resin by weight.
10. The notepad of claim 1 wherein the thermoplastic rubber is from the group including styrene thermoplastic elastomer, styrene-butadiene-styrene block copolymer, and styrene-ethylene-butadiene-styrene block copolymer.
11. The notepad of claim 10 wherein the impregnating oil is from the group including hydrogenated naphthenic oil, mineral oil, and a combination of hydrogenated naphthenic oil and mineral oil.
12. The notepad of claim 11 wherein the adhesive layer comprises one-hundred parts thermoplastic rubber by weight, one-hundred to three-hundred parts hydrogenated naphthenic oil by weight, one-hundred to three-hundred parts mineral oil by weight, less than ten parts petroleum tackifier resin by weight, and one to five parts polypropylene resin by weight.
13. The notepad of claim 1 wherein the impregnating oil is from the group including hydrogenated naphthenic oil, mineral oil, and a combination of hydrogenated naphthenic oil and mineral oil.
14. The notepad of claim 13 wherein the adhesive layer comprises one-hundred parts thermoplastic rubber by weight, one-hundred to three-hundred parts hydrogenated naphthenic oil by weight, one-hundred to three-hundred parts mineral oil by weight, less than ten parts petroleum tackifier resin by weight, and one to five parts polypropylene resin by weight.
15. A flexible adhesive notepad comprising:
a tacky elastomeric layer comprised of a naphthenic oil-impregnated thermoplastic rubber having a thickness from 0.5 mm to 2.0 mm;
a face layer comprised of a polymer film permanently adhered to the elastomeric layer by an oil-based adhesive;
wherein the face layer comprises graphics which indicate a plurality of evenly spaced holes adjacent one edge thereof and which indicate a plurality of binder rings inserted through said holes to emulate a bound notebook; and
the tacky elastomeric and face layers together comprise a peripheral shape having a plurality of evenly-spaced rounded bumps protruding from said one edge adjacent said graphics, each of said rounded bumps surrounding one of said binder rings.
16. A flexible adhesive notepad comprising:
a tacky elastomeric layer comprised of a naphthenic oil-impregnated thermoplastic rubber having a thickness from 0.5 mm to 2.0 mm;
a face layer comprised of a polymer film permanently adhered to the elastomeric layer by an oil-based adhesive;
wherein the face layer comprises graphics of a binding along one edge thereof to emulate a bound notebook; and
the tacky elastomeric and face layers together comprise a peripheral shape having a plurality of evenly-spaced rounded bumps protruding from said one edge adjacent said graphics, each of said rounded bumps surrounding one of said binder rings.