发明名称 |
Adhesives, their preparation and use |
摘要 |
Skin friendly pressure sensitive adhesives in the form of inherently tacky polyurethane-containing gells may be prepared by reacting an isocyanate prepolymer, which is itself the reaction product of poly-functional isocyanate and polyoxyalkylene diol monoalkyl ether, with a hydroxyl-containing ester of acrylic or methacrylic acid and optionally other hydroxyl containing compounds and then cross-linking the polymer so formed by means of irradiation. The proportion of acrylate chosen is such that it will react with at least 15 to 25% of the free isocyanate groups in the prepolymer and the remainder react with the other hydroxyl containing compound. The adhesives are capable of absorbing up to 95%, typically from 35 to 95% by weight of water when hydrated. The use of the adhesive in highly moisture vapor permeable dressings is also disclosed.
|
申请公布号 |
US4914173(A) |
申请公布日期 |
1990.04.03 |
申请号 |
US19880271096 |
申请日期 |
1988.11.14 |
申请人 |
SMITH AND NEPHEW ASSOCIATE COMPANIES PLC |
发明人 |
ANSELL, CHRISTOPHER W. G. |
分类号 |
A61B19/08;A61F13/00;A61F13/02;A61L15/58;C08G18/28;C08G18/67;C09J4/00;C09J155/00;C09J175/00;C09J175/04;C09J175/16 |
主分类号 |
A61B19/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|