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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7897683 B1

PDFFull Text
Date of Patent:
Mar. 01, 2011

Filed:

May. 21, 2007

Medical adhesive and medical adhesive tape or sheet

Applicants:

Atsushi Hamada, Osaka, JP;

Tomonari Naito, Osaka, JP;

Namiko Murayama, Osaka, JP;

Miki Funahashi, Osaka, JP;

Jun Ishikura, Osaka, JP;

Inventors:

Atsushi Hamada, Osaka, JP;

Tomonari Naito, Osaka, JP;

Namiko Murayama, Osaka, JP;

Miki Funahashi, Osaka, JP;

Jun Ishikura, Osaka, JP;

Assignee:

Nitto Denko Corporation, Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Vasu Jagannathan

Assistant Examiner:

Karuna P Reddy

Int. Cl.
CPC ...
C08L 33/00 (2006.01); C08L 43/04 (2006.01); C08L 31/02 (2006.01); C08F 2/16 (2006.01); C08F 2/22 (2006.01); C08K 5/00 (2006.01); B32B 7/12 (2006.01); B32B 9/04 (2006.01); A61F 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a medical adhesive and a medical adhesive tape or sheet superior in the fixing performance, particularly perspiration-resistant fixing, which shows low skin irritation and suitable adhesive strength. The present invention provides a medical adhesive containing a water-dispersed copolymer obtained by copolymerizing 100 parts by weight of a monomer mixture containing (meth)acrylic acid alkyl ester and 0.005-2 parts by weight of a silane monomer copolymerizable with the ester, and an organic liquid component compatible with the copolymer; a medical adhesive containing a water-dispersed copolymer obtained by copolymerizing a monomer mixture containing (meth)acrylic acid alkyl ester and a silane monomer copolymerizable with the ester, and an organic liquid component compatible with the copolymer, wherein the gel fraction after crosslinking of the copolymer is 40-80 wt %, and the weight average molecular weight of a sol component after crosslinking is not less than 300000; and a medical adhesive tape or sheet having the medical adhesive at least on one surface of a support.

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