03-10-2013 дата публикации
Номер: US20130260134A1
Принадлежит:
An adhesive for use on skin comprises acid-functionalized polyacrylate, one or more polyvinylpyrrolidones, and a low softening point resin. 1. An adhesive comprising:an acid-functionalized polyacrylate, one or more polyvinylpyrrolidones, and a low softening point resin.2. The adhesive of claim 1 , wherein the polyacrylate comprises monomers of acrylic acid and acrylic or meth(acrylic) esters.3. The adhesive of claim 2 , wherein the polyacrylate is present in about 60% to 94% by weight claim 2 , the one or more polyvinylpyrrolidones are present in about 3% to 20% by weight claim 2 , and the low softening point resin is present in about 5% to 20% by weight.4. The adhesive of claim 3 , wherein the polyacrylate is present in about 70% to 80% by weight.5. The adhesive of claim 3 , wherein the one or more polyvinylpyrrolidones are present in about 5% to 10% by weight6. The adhesive of claim 5 , wherein the adhesive comprises one polyvinylpyrrolidone.7. The adhesive of claim 6 , wherein the wherein the polyvinylpyrrolidone has a molecular weight of about 2 claim 6 ,000 g/mol to 3 claim 6 ,000 g/mol.8. The adhesive of claim 6 , wherein the wherein the polyvinylpyrrolidone has a molecular weight of about 28 claim 6 ,000 g/mol to 34 claim 6 ,000 g/mol.9. The adhesive of claim 6 , wherein the wherein the polyvinylpyrrolidone has a molecular weight of about 1 claim 6 ,000 claim 6 ,000 g/mol to 1 claim 6 ,500 claim 6 ,000 g/mol.10. The adhesive of claim 5 , wherein the adhesive comprises more than one polyvinylpyrrolidone.11. The adhesive of claim 3 , wherein the low softening point resin is a copolymer of acrylamide and ethylhexyl acrylate.12. The adhesive of claim 3 , wherein the adhesive at about a 2 mil thickness has an adhesion value to steel between about 0.2 lb/linear inch and 4.0 lb/linear inch.13. The adhesive of claim 3 , wherein the adhesive at about a 2 mil thickness has an adhesion value to polypropylene between about 0.2 lb/linear inch and 1.5 lb/linear inch.14. ...
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