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公开(公告)号:US5952422A
公开(公告)日:1999-09-14
申请号:US768735
申请日:1996-12-18
申请人: Tak-lung Chang , Sheng-hung Kuo , Kishore Shah , Agis Kydonieus
发明人: Tak-lung Chang , Sheng-hung Kuo , Kishore Shah , Agis Kydonieus
IPC分类号: A61L15/58 , A61L24/04 , C08G18/10 , C08G18/48 , C08G18/72 , C08G18/82 , C09J175/04 , C09J175/08 , C08J3/00 , C08G18/00 , C08K3/20 , C08L75/00
CPC分类号: C09J175/08 , A61L15/58 , A61L24/046 , C08G18/10 , C08G18/4837 , C08G18/725 , C08G2170/40 , C08G2220/00
摘要: Method for forming a polyurethane based adhesive composition in which a reaction mixture of at least one NCO-terminated prepolymer and a polyhydroxy compound is heated at a temperature and for a length of time sufficient to provide a gel content of from about 30 to 42% by weight and a molecular weight of extractables of at least about 45,000. Polyurethane based adhesives prepared by the method and medical devices employing the same are also disclosed.
摘要翻译: 用于形成聚氨酯基粘合剂组合物的方法,其中将至少一种NCO-封端的预聚物和多羟基化合物的反应混合物在足以使凝胶含量为约30至42%的温度和长度的温度下加热, 重量和至少约45,000的可提取物的分子量。 还公开了通过该方法制备的聚氨酯类粘合剂和使用其的医疗装置。
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公开(公告)号:US5591820A
公开(公告)日:1997-01-07
申请号:US437069
申请日:1995-05-09
申请人: Agis Kydonieus , Ladislav Bastar , Kishore Shah , Khosrow Jamshidi , Tak-lung Chang , Sheng-hung Kuo
发明人: Agis Kydonieus , Ladislav Bastar , Kishore Shah , Khosrow Jamshidi , Tak-lung Chang , Sheng-hung Kuo
IPC分类号: A61K9/70 , A61F13/02 , A61L15/16 , A61L15/22 , A61L15/26 , A61L15/42 , A61L15/58 , A61L31/06 , A61L31/14 , C09J175/00 , C09J175/08 , C08G18/30
CPC分类号: A61L31/148 , A61L31/06 , C08G18/4804 , C08G18/73 , C08G18/76 , C09J175/08 , Y10S528/905 , Y10T428/31551
摘要: Pressure-sensitive adhesives which possess absorptivity and/or permeability properties to remove transepidermal water loss and/or other bodily fluids that come into contact with the adhesive, in combination with a fine balance of cohesion and adhesion properties, can be formulated by controlling the crosslinking of a polyurethane polymer having excess hydroxyl functionality, a glass transition temperature of less than about 0.degree. C., a moisture absorption of at least about 20% of its weight and/or a moisture vapor transmission rate of at least about 300 grams/meter.sup.2 /24 hours measured at 37.degree. C. and a 90% relative humidity gradient. Adhesives of these polymers possess a peel adhesion to human skin of between about 0.3 and 4 newtons/cm width of the polymer or adhesive.
摘要翻译: 具有吸收性和/或渗透性能以去除经表皮水分流失的粘合剂和/或与粘合剂接触的其它体液以及内聚力和粘合性质的良好平衡的压敏粘合剂可以通过控制交联 的具有过量羟基官能团的聚氨酯聚合物,玻璃化转变温度低于约0℃,其吸湿率至少为其重量的约20%和/或至少约300克/米2的湿气透过率 / 24小时,在37℃和90%相对湿度梯度下测量。 这些聚合物的粘合剂对聚合物或粘合剂的宽度约为0.3-4牛顿/厘米,具有对人体皮肤的剥离粘合性。
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公开(公告)号:US5527271A
公开(公告)日:1996-06-18
申请号:US220350
申请日:1994-03-30
CPC分类号: A61L15/60 , A61F13/00017 , A61F13/00042
摘要: A composite material for wound dressings having a fibrous wound-contacting substrate, such as cotton gauze, impregnated with a thermoplastic hydrogel forming polymer and methods of making the same.
摘要翻译: 一种用于伤口敷料的复合材料,其具有浸渍有热塑性水凝胶形成聚合物的纤维缠绕接触衬底(例如棉纱布)及其制备方法。
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