A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 24/04 (2006.01) A61L 15/24 (2006.01) A61L 15/58 (2006.01) A61L 24/06 (2006.01) C09J 7/02 (2006.01)
Patent
CA 2399344
The present invention provides a medical adhesive composition containing a copolymer obtained by copolymerization of a monomer mixture containing an acrylic acid alkyl ester having C4 - C12 alkyl group, a (meth)acrylic acid, and a methacrylic acid alkyl ester having C1 - C4 alkyl group, which mixture is free of a multifunctional monomer having two or more unsaturated double bonds in a molecule, wherein the copolymer has a gel-sol ratio of 35:65 to 55:45 and a weight average molecular weight of the sol portion of 300,000 to 500,000, or a copolymer obtained by copolymerization of the above-mentioned monomer mixture and having a gel fraction of 35 to 55% and a swelling ratio of a gel portion of 50 to 90 times. The medical adhesive of the present invention is superior in the balance between adhesiveness and cohesiveness and can be preferably used for various medical adhesive tapes or sheets.
Kasahara Tsuyoshi
Konishi Takahisa
Kuniya Masayoshi
Sasaki Yasuyuki
Fetherstonhaugh & Co.
Nitto Denko Corporation
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