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1.发明申请MELT-SPUN POLYSULFONE SEMIPERMEABLE MEMBRANES AND METHODS FOR MAKING THE SAME 审中-公开MELT-SPUN POLYSULFONE可切割膜及其制造方法
公开(公告)号：WO2004058385A9
公开(公告)日：2004-11-25
申请号：PCT/US0340499
申请日：2003-12-18
Applicant: BAXTER INT , BAXTER HEALTHCARE SA
Inventor： HAN WENLI , KETTERER MARTIN , LEE JONNIE , NGUYEN THANH , WASHINGTON GEORGE , JORDAN DELORES , DE DIBYENDU
CPC classification number: B01D71/68 , A61M1/16 , B01D67/0011 , B01D67/002 , B01D67/0027 , B01D67/003 , B01D69/02 , B01D69/08 , B01D69/087 , B01D2325/34 , B01D2325/36 , C08J3/091 , C08J2381/06
Abstract: The present invention provides, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the polysulfone semipermeable membrane comprising a mixture of: an ultra-high-molecular-weight hydrophilic polymer, a polysulfone compound and a solvent for the polysulfone compound, and the polysulfone semipermeable membrane having a homogeneous structure such that the polysulfone semipermeable membrane has a substantially uniform structure. Another aspect of this invention discloses methods for fabricating semipermeable membranes by homogeneously mixing the composition, melting the composition, and melt-spinning the molten composition. Another aspect of the present invention includes homogeneous, melt-spun, semipermeable membranes useful for liquid separation processes, such as, but not limited to, microfiltration, ultrafiltration, dialysis, and reverse osmosis.
Abstract translation: 本发明尤其提供了一种用于制备均匀的半透膜的组合物，该组合物包含聚砜半透膜，聚砜半透膜包含以下混合物：超高分子量亲水聚合物，聚砜化合物 和聚砜化合物的溶剂，聚砜半透膜具有均匀的结构，使得聚砜半透膜具有基本均匀的结构。 本发明的另一方面公开了通过均匀混合组合物，熔融组合物和熔融组合物熔融纺制制造半透膜的方法。 本发明的另一方面包括用于液体分离过程的均匀的熔纺的半透膜，例如但不限于微滤，超滤，透析和反渗透。
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Patent Agency Ranking
公开(公告)号：CA2297914A1
公开(公告)日：1999-02-04
申请号：CA2297914
申请日：1998-07-22
Applicant: BAXTER INT
Inventor： CARPENTIER ALAIN , CARPENTIER ALEXANDRE , LAM HUNG , NGUYEN THANH , HUYNH VAN LE , CUNANAN CRYSTAL
Abstract: An expandable annuloplasty ring which may either expand spontaneously, in situ, as the patient grows or be expanded by surgical intervention by balloon dilatation. The distensible annuloplasty ring of the invention may be usable in pediatric patients whose growth, subsequent to surgical implantation of the ring, will necessitate subsequent enlargement of the ring to accommodate growth of the annulus. The ring may include relatively expandable segments to enable the enlargement thereof. The ring segments may include engaging teeth which cooperate with notches or slots formed in the tubes to provide some resistance to ring distention, while preventing collapse of the ring in the opposite direction. The teeth may be of different sizes or shapes to regulate the amount of force needed to expand the ring at different stages of the patient's growth. Alternatively, the adjustable ring includes a solid core of non-elastic material which plastically retains its shape upon natural expansion of the annulus, or after surgical expansion. In one embodiment, segments are coupled together with a discontinuity around the ring periphery. Pivot regions are provided between adjacent segments that, along with the discontinuity, enable the ring to expand upon annulus growth. The discontinuity may be positioned along the anterior side of the ring or around the posterior side. A further version makes use of telescoped segments with no discontinuity. The segments are coupled together with tubular sheaths, and expand without decoupling. A fabric covering may be omitted.
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公开(公告)号：CA2511116A1
公开(公告)日：2004-07-15
申请号：CA2511116
申请日：2003-12-18
Applicant: BAXTER INT , BAXTER HEALTHCARE SA
Inventor： HAN WENLI , LEE JONNIE , NGUYEN THANH , KETTERER MARTIN , JORDAN DELORES , WASHINGTON GEORGE , DE DIBYENDU
Abstract: The present invention provides, inter alia, a composition useful for produci ng a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the polysulfone semipermeable membrane comprising a mixture of: an ultra-high-molecular-weight hydrophilic polymer, a polysulfone compound and a solvent for the polysulfone compound, and the polysulfone semipermeable membrane having a homogeneous structure such that the polysulfone semipermeable membrane has a substantially uniform structure . Another aspect of this invention discloses methods for fabricating semipermeable membranes by homogeneously mixing the composition, melting the composition, and melt-spinning the molten composition. Another aspect of the present invention includes homogeneous, melt-spun, semipermeable membranes useful for liquid separation processes, such as, but not limited to, microfiltration, ultrafiltration, dialysis, and reverse osmosis.
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公开(公告)号：AU2003301102A1
公开(公告)日：2004-07-22
申请号：AU2003301102
申请日：2003-12-18
Applicant: BAXTER HEALTHCARE SA , BAXTER INT
Inventor： HAN WENLI , KETTERER MARTIN , LEE JONNIE , NGUYEN THANH , WASHINGTON GEORGE , JORDAN DELORES , DE DIBYENDU
Abstract: The present invention provides, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the polysulfone semipermeable membrane comprising a mixture of: an ultra-high-molecular-weight hydrophilic polymer, a polysulfone compound and a solvent for the polysulfone compound, and the polysulfone semipermeable membrane having a homogeneous structure such that the polysulfone semipermeable membrane has a substantially uniform structure. Another aspect of this invention discloses methods for fabricating semipermeable membranes by homogeneously mixing the composition, melting the composition, and melt-spinning the molten composition. Another aspect of the present invention includes homogeneous, melt-spun, semipermeable membranes useful for liquid separation processes, such as, but not limited to, microfiltration, ultrafiltration, dialysis, and reverse osmosis.
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公开(公告)号：AU5724898A
公开(公告)日：1998-07-31
申请号：AU5724898
申请日：1997-12-30
Applicant: BAXTER INT
Inventor： NGUYEN THANH , JAANINE HAMID , RUZIUS KEES , CHIANG CHUNG-YUAN , MELUCH TIMOTHY B , SILVA LALITH K , RADOVICH JOHN M , WASHINGTON GEORGE
Abstract: The present invention discloses, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising (1) a polysulfone compound, (2) a solvent, such as sulfolane, antypyrine, delta -valerolactam, diethyl phthalate, and mixtures thereof, and (3) a non-solvent, such as poly(ethylene glycol), di(ethylene glycol), tri(ethylene glycol), glycerol, and mixtures thereof. Another aspect of this invention discloses methods for fabricating semipermeable membranes by homogeneously mixing the composition of the polysulfone compound, solvent, and non-solvent, melting the composition, and melt-spinning the molten composition. Another aspect of the present invention includes homogeneous, melt-spun, semipermeable membranes useful for liquid separation processes, such as, but not limited to, microfiltration, ultrafiltration, dialysis, and reverse osmosis.
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公开(公告)号：AU8497498A
公开(公告)日：1999-02-16
申请号：AU8497498
申请日：1998-07-22
Applicant: BAXTER INT
Inventor： CARPENTIER ALEXANDRE , CARPENTIER ALAIN , LAM HUNG , NGUYEN THANH , HUYNH LE VAN , CUNANAN CRYSTAL
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