发明名称 |
WATER-SOLUBLE PRESSURE-SENSITIVE MUCOADHESIVE |
摘要 |
Water-soluble pressure-sensitive adhesives include a water-soluble polymer t hat is made tacky at room temperature by addition of a water-soluble plasticizer that is miscible with the polymer. Suitable poly mers are solid at room temperature; and have a hydrophil icity as measured by water uptake greater than about 25 %; they are liquid at room temperature and have a boiling point higher than about 80 .degree.C. The adhesives according to the invention may conveniently be prov ided in dry film form. Preferred water-soluble pressure- sensitive adhesives of the invention adhere both to mucosal surfaces and to a variety of materials that may constitute a part of a device or p rosthesis to be held in a body cavity that has a mucosal lining. Also, a laminated device for the controlled release of a substance within a muco sa-lined body cavity includes the substance dissolved or dispersed in either or both of a water-soluble pressure-sensitive adhesive layer and optionally one or more water-soluble polymer layers. Also, devices for administering a substance over an extended time for relief of sore throa t or cough, or for administering a breath freshening agent, particularly a mint o dorant, include a water soluble polymer film layer conta ining the active ingredient, and a water soluble pressure sensitive mucoadhesive l ayer. |
申请公布号 |
CA2169729(C) |
申请公布日期 |
2001.04.03 |
申请号 |
CA19942169729 |
申请日期 |
1994.08.19 |
申请人 |
CYGNUS THERAPEUTIC SYSTEMS |
发明人 |
BIEGAJSKI, JAMES E.;VENKATRAMAN, SUBBU S.;SCOTT, ANN M. |
分类号 |
A61K9/70;A61F6/06;A61F13/00;A61F13/02;A61K6/00;A61K9/00;C08K5/10;C09J9/00;C09J101/08;C09J103/00;C09J103/02;C09J105/00;C09J107/00;C09J129/04;C09J133/02;C09J137/00;C09J139/06;C09J171/00;C09J171/02;C09J189/00;C09J193/00;C09J201/00 |
主分类号 |
A61K9/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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