A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 15/58 (2006.01) A61L 15/24 (2006.01) C09J 7/02 (2006.01) C09J 133/08 (2006.01) C08L 53/00 (2006.01)
Patent
CA 2238327
The invention provides a pressure-sensitive adhesive composition for medical applications comprising a blend of at least two components comprised of about 5 to about 95 % by weight of a first component comprised of at least one acrylic pressure-sensitive adhesive and about 5 to about 95 % by weight of a second component comprised of either (a) at least one elastomer with a tackifying resin, or (b) at least one thermoplastic elastomer, wherein the resulting pressure-sensitive adhesive demonstrates a T0 of at least 1 N/dm and a T48 of less than 12 N/dm when adhered to skin. The pressure-sensitive adhesive composition is prepared either in the presence of a solvent or is alternatively prepared by melt blending. A method of preparing such an adhesive is also disclosed.
L'invention concerne une composition autoadhésive à usage médical comprenant un mélange d'au moins deux composants, avec entre environ 5 et environ 95 % en poids d'un premier composant constitué d'au moins un premier autoadhésif acrylique et entre environ 5 et environ 95 % en poids d'un second composant constitué de (a) au moins un élastomère avec une résine collante ou (b) au moins un élastomère thermoplastique, l'adhésif obtenu présentant une valeur T¿0? d'au moins 1 N/dm et une valeur T¿48? d'au moins 12 N/dm, quand il est appliqué sur la peau. La composition autoadhésive est préparée à l'aide d'un solvant ou par mélange après fusion. L'invention concerne également un procédé de préparation d'un tel adhésif.
Hyde Patrick D.
Krueger Dennis L.
Lau Felix P.
Pyun Eumi
Tucker Pamela S.
Smart & Biggar
The Minnesota Mining & Manufacturing Company
LandOfFree
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