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US 11,590,255 B2Granted
Rubber-based soft gel skin adhesives
AssigneeAvery Dennison Corporation
InventorsXianbo Hu, Neal Carty
Life of this patent
Estimating the term…
Abstract
Adhesives comprising rubber, tackifier, oil, and optionally absorbent and active ingredient are described. The adhesives are suitable for medical applications as they are repositionable on skin. Also described are medical articles using the adhesives.
Claims10
A rubber-based skin adhesive consisting of:
- from about 7% to about 33% of at least one rubber component selected from the group consisting of a linear or radial A-B-A block copolymer, linear or radial A-B block copolymer, branched block copolymer, olefinic block copolymer and combinations thereof;
- from about 15% 45% of at least one tackifier selected from the group consisting of a hydrogenated pentaerythritol rosin ester, a hydrogenated hydrocarbon resin, a styrenated terpene resin, and combinations thereof;
- from about 15% about 60% of at least one mineral oil;
- and
- from about 30% to about 40% of at least one absorbent;
- at least one additive selected from the group consisting of a natural clay, a synthetic clay, a micro fibers, nano fibers, fibrils of fibers, an antioxidant, a stabilizer, and combinations thereof;
- optionally, at least one active ingredient;
- wherein the adhesive exhibits a soft, gel-like consistency and is repositionable on skin;
- and
- wherein the ratio of the amount of the tackifier to the amount of the rubber component ranges from 1:1 to 2.4:1;
- and
- wherein the ratio of the amount of the oil to the amount of the rubber component ranges from 1.3:1 to 2.6:1.
9 more elements
Dependencies are inferred from the claim text.