公开(公告)号：US20090286894A1

公开(公告)日：2009-11-19

申请号：US12296177

申请日：2007-04-05

Applicant: Justin John Cooper-White ,  Yang Cao ,  Andrew Stewart Rowlands

Inventor： Justin John Cooper-White ,  Yang Cao ,  Andrew Stewart Rowlands

IPC: C08J9/00

CPC classification number: C08J9/28 ,  C08J2201/052

Abstract: A porous polymer blend, and a method of producing a porous polymer blend from at least two immiscible polymers. The at least two immiscible polymer being blended together and exhibiting the absence of complete phase separation. The method of producing a porous polymer blend comprising: forming a liquid composition comprising at least two immiscible polymers dissolved in a common solvent; subjecting the liquid composition to a reduction in temperature to cause at least two immiscible polymers to phase separate into a common polymer rich phase and a common polymer poor phase; solidifying the at least two immiscible polymers in the common polymer rich phase so as to avoid complete phase separation of the at least two immiscible polymers; and removing the common polymer pore phase to provide a blend of the at least two immiscible polymers having a porous morphology.

Abstract translation: 多孔聚合物共混物，以及从至少两种不混溶聚合物制备多孔聚合物共混物的方法。 将至少两种不混溶的聚合物混合在一起并表现出不完全的相分离。 制备多孔聚合物共混物的方法，包括：形成液体组合物，其包含溶解在常见溶剂中的至少两种不混溶的聚合物; 使液体组合物经历温度降低，使至少两种不混溶的聚合物相分离成常见的富聚合物相和常见的聚合物不良相; 在常见的富聚合物相中固化至少两种不混溶的聚合物，以避免至少两种不混溶的聚合物的完全相分离; 并除去常见的聚合物孔相以提供具有多孔形态的至少两种不混溶聚合物的共混物。

公开(公告)号：US5180492A

公开(公告)日：1993-01-19

申请号：US716287

申请日：1991-06-17

Applicant: Makoto Ohnishi ,  Kenichi Shimura

Inventor： Makoto Ohnishi ,  Kenichi Shimura

IPC: C08J7/18 ,  C08J9/28 ,  C08J9/40

CPC classification number: C08J9/28 ,  C08J7/18 ,  C08J9/405 ,  C08J2201/03 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/12 ,  Y10T428/249979

Abstract: A .gamma.-ray-sterilizable hydrophilic porous material has been found which includes a continuous layer made of a synthetic polymer compound forming a porous substrate and a hydrophilic and .gamma.-ray-resistant polymer supported on at least part of the surface of the porous substrate in an amount not less than 5% by weight, based on the porous substrate. The hydrophilic porous material has an average pore diameter in the range of 0.02 to 20 .mu.m, a porosity in the range of 10 to 90% and a wall thickness in the range of 10 .mu.m to 5.0 mm.

Abstract translation: 已经发现了一种γ-射线消毒的亲水性多孔材料，其包括由形成多孔基材的合成高分子化合物制成的连续层，以及负载在多孔基材表面的至少部分表面上的亲水性和耐γ射线抗性聚合物 基于多孔基材的量不小于5重量％。 亲水性多孔质材料的平均孔径为0.02〜20μm，孔隙率为10〜90％，壁厚在10〜5.0mm的范围内。

公开(公告)号：US4863792A

公开(公告)日：1989-09-05

申请号：US257949

申请日：1988-10-14

Applicant: James S. Mrozinski

Inventor： James S. Mrozinski

IPC: C08J9/26 ,  B01D67/00 ,  B01D69/12 ,  B32B5/32 ,  B32B27/32 ,  C08J5/12 ,  C08J9/28 ,  C08J9/36 ,  H01M2/16

CPC classification number: H01M2/1653 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/12 ,  B01D71/26 ,  B32B27/32 ,  B32B5/32 ,  C08J5/122 ,  C08J9/28 ,  H01M2/1686 ,  B01D2323/16 ,  B01D2325/022 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249981

Abstract: Multi-layer, microporous polyolefin sheet materials are provided. The sheet materials comprise at least two microporous polyolefin layers, the layers being autogenously bonded and having substantially the same porosity as prior to bonding.

Abstract translation: 提供多层微孔聚烯烃片材。 片材包含至少两个微孔聚烯烃层，这些层是自粘结的并且具有与粘接前基本相同的孔隙率。

公开(公告)号：US4655769A

公开(公告)日：1987-04-07

申请号：US811015

申请日：1985-12-18

Applicant: Anagnostis E. Zachariades

Inventor： Anagnostis E. Zachariades

IPC: A61F2/00 ,  A61L27/16 ,  A61L27/50 ,  B29C43/00 ,  B29C43/20 ,  B29C55/00 ,  C08J9/28 ,  A61F2/06 ,  B29C55/22

CPC classification number: C08J9/28 ,  A61L27/16 ,  A61L27/507 ,  B29C43/203 ,  B29C55/005 ,  B29C43/00 ,  B29K2023/06 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/06

Abstract: A pseudo-gel comprising a suitable solvent in an amount of 99 to 90 percent by weight and an ultra-high-molecular-weight polyethylene in an amount of 1 to 10 percent by weight, said polyethylene being a semicrystalline network with adjustable crystalline morphology comprising randomly dispersed and oriented chain-folded single crystals, stacks of single crystals, spherulite crystals, and extended-chain shish-kebab-type of fibrils with lengths up to a few millimeters and widths up to 20 .mu.m. Also, the semicrystalline ultra-high molecular-weight polyethylene obtained by removal of said solvent from the pseudo-gel. Further, a method for making the pseudo-gel and the ultra-high-molecular-weight polyethylene product.

Abstract translation: 一种假凝胶，其包含99至90重量％的合适溶剂和1-10重量％的超高分子量聚乙烯，所述聚乙烯是具有可调结晶形态的半结晶网络，包括 随机分散和取向的链折叠单晶，单晶的堆叠，球晶，延伸链条的肠丝织物型原纤维，长度可达几毫米，宽度可达20微米。 此外，通过从假凝胶中除去所述溶剂获得的半结晶超高分子量聚乙烯。 另外，制造假凝胶和超高分子量聚乙烯制品的方法。

公开(公告)号：US4490431A

公开(公告)日：1984-12-25

申请号：US438823

申请日：1982-11-03

Applicant: Gunter H. Vitzthum ,  Michael A. Davis

Inventor： Gunter H. Vitzthum ,  Michael A. Davis

IPC: B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  C08J9/00 ,  C08J9/28 ,  B32B3/00 ,  B29D27/04

CPC classification number: C08J9/28 ,  B01D67/003 ,  B01D69/02 ,  B01D71/26 ,  C08J2201/03 ,  C08J2201/052 ,  C08J2201/0542 ,  C08J2323/12 ,  Y10T428/249979

Abstract: There is disclosed a substantially skinless microporous polypropylene membrane characterized by having(a) a bubble point of about 25 to about 50 psi;(b) a thickness of about 3 to about 7 mils;(c) a nitrogen flow rate of at least 0.5 liters per square centimeter-minute;(d) a burst strength of at least 10 psi; and(e) an S value of about 15, or less.There is also disclosed a method of preparing a microporous polypropylene membrane comprising heating a mixture of about 30 percent polypropylene and about 70 percent, N,N-bis(2-hydroxyethyl)tallowamine, by weight, to a temperature and for a time sufficient to form a homogeneous solution, casting or extruding said solution at a thickness of about 3 to about 7 mils, onto a chill roll maintained at a temperature of from about 50.degree. to about 80.degree. C., allowing said solution to solidify on said chill roll to form a solid sheet, removing said solid sheet from said chill roll and removing at least a substantial portion of the liquid from said sheet to form the microporous polypropylene membrane.

Abstract translation: 公开了一种基本上无皮的微孔聚丙烯膜，其特征在于具有（a）约25至约50psi的起泡点; （b）约3至约7密耳的厚度; （c）至少0.5升/平方厘米分钟的氮气流量; （d）至少10psi的爆裂强度; 和（e）约15或更小的S值。 还公开了一种制备微孔聚丙烯膜的方法，其包括将约30％聚丙烯和约70％重量的N，N-双（2-羟乙基）牛油胺的混合物加热到足以使 形成均匀的溶液，将所述溶液以约3至约7密耳的厚度浇铸或挤出到保持在约50℃至约80℃温度的冷却辊上，使所述溶液在所述冷却辊上固化 以形成固体片材，从所述冷却辊中除去所述固体片材并从所述片材中除去至少大部分的液体以形成微孔聚丙烯膜。

公开(公告)号：US4247498A

公开(公告)日：1981-01-27

申请号：US963628

申请日：1978-11-24

Applicant: Anthony J. Castro

Inventor： Anthony J. Castro

IPC: A01N25/10 ,  B41N7/00 ,  C08J9/28 ,  C09K3/14 ,  B29D27/04

CPC classification number: C09K3/149 ,  A01N25/10 ,  B41N7/00 ,  C08J9/28 ,  B41N2207/02 ,  B41N2207/14 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546

Abstract: Novel microporous polymers in forms ranging from films to blocks and intricate shapes from synthetic thermoplastic polymers, such as, olefinic, condensation, and oxidation polymers, are disclosed. In one embodiment the microporous polymers are characterized by a relatively homogeneous, three-dimensional cellular structure having cells connected by pores of smaller dimension. Also disclosed is a process for making microporous polymers from such thermoplastic polymers by heating a mixture of the polymer and a compatible liquid to form a homogeneous solution, cooling said solution under non-equilibrium thermodynamic conditions to initiate liquid-liquid phase separation, and continuing said cooling until the mixture achieves substantial handling strength. Also disclosed are microporous polymer products which contain relatively large amounts of functionally useful liquids and behave as solids.

Abstract translation: 公开了从合成热塑性聚合物（例如烯烃，缩合和氧化聚合物）的薄膜到块状和复杂形状的新型微孔聚合物。 在一个实施方案中，微孔聚合物的特征在于具有通过较小尺寸的孔连接的细胞的相对均匀的三维细胞结构。 还公开了一种通过加热聚合物和相容液体的混合物以形成均匀溶液从这种热塑性聚合物制备微孔聚合物的方法，在非平衡热力学条件下冷却所述溶液以引发液 - 液相分离，并且继续所述 冷却直到混合物达到显着的处理强度。 还公开了含有相对大量功能上有用的液体并表现为固体的微孔聚合物产品。

公开(公告)号：US3589929A

公开(公告)日：1971-06-29

申请号：US3589929D

申请日：1968-05-13

Applicant: ALGEMENE KUNSTZIJDE UNIE NV

Inventor： SMOLDERS CORNELIS A ,  GEUSGENS JOSEPH T V M

IPC: C08J9/26 ,  C08J9/28 ,  D04H1/4258 ,  D04H1/4309 ,  D04H1/482 ,  D04H1/488 ,  D04H1/587 ,  D04H1/645 ,  D06N3/00 ,  B29D27/04 ,  B44D1/44

CPC classification number: D04H1/4309 ,  C08J9/26 ,  C08J9/28 ,  C08J2201/052 ,  D04H1/4258 ,  D04H1/482 ,  D04H1/488 ,  D04H1/587 ,  D04H1/645 ,  D06N3/0052 ,  Y10S428/904 ,  Y10T428/249953 ,  Y10T442/2033 ,  Y10T442/2139

Abstract: A PROCESS FOR THE MANUFACTURE OF A POROUS SHEET MATERIAL WHICH COMPRISES THE STEPS OF APPLYING A LIQUID HOMOGENEOUS MIXTURE OF A POLYMER, E.G., A POLYURETHANE, AND AN AUXILIARY SUBSTANCE, E.G., CAPROLACTAM, TO A SUBSTRATE, COOLING THE MIXTURE TO A TEMPERATURE AT WHICH THERE IS FORMED A SOLID PHASE SUBSTANTIALLY COMPRISING THE POLYMER, THE AUXILIARY SUBSTANCE COMPRISING A SOLVENT FOR THE POLYMER WHICH UPON COOLING OF THE MIXTURE PRECIPITATES FROM THE MIXTURE INTO A SEPARATE SOLID PHASE BEFORE THE FORMATION OF THE SOLID POLYMER PHASE IS COMPLETED, AND THEREAFTER REMOVING THE AUXILIARY SUBSTANCE TO FORM A HOMOGENEOUS UNIFORM POROUS SHEET MATERIAL.

公开(公告)号：US09789456B2

公开(公告)日：2017-10-17

申请号：US14436099

申请日：2013-10-15

Applicant: INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE—INRA

Inventor： Isabelle Capron ,  Herve Bizot ,  Bernard Cathala

IPC: A61K31/722 ,  A61K8/06 ,  A61K9/107 ,  B01F17/00 ,  C08J9/28 ,  C08J9/30

CPC classification number: B01F17/005 ,  C08J9/28 ,  C08J9/30 ,  C08J2201/028 ,  C08J2201/052 ,  C08J2305/08

Abstract: The composition, advantageously an emulsion or a foam, includes an internal phase dispersed in a hydrophilic continuous phase, the percentage of the internal phase being higher than 50%. The emulsion composition contains nanocrystals of a polysaccharide other than cellulose, advantageously chitin, that are located at the interface between the internal phase and the hydrophilic continuous phase.

公开(公告)号：US20150057382A1

公开(公告)日：2015-02-26

申请号：US14384088

申请日：2013-03-13

Applicant: Mitsubishi Rayon Co., Ltd.

Inventor： Ali Rizvi ,  Chul Park ,  Masayuki Yamaguchi

IPC: C08J9/12 ,  C08J9/00

CPC classification number: C08J9/122 ,  C08J9/0061 ,  C08J9/283 ,  C08J2201/03 ,  C08J2201/05 ,  C08J2201/052 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2205/05 ,  C08J2205/052 ,  C08J2323/02 ,  C08J2323/12 ,  C08J2427/18

Abstract: The present invention relates to a method for producing a resin composition foam comprising dissolving a supercritical fluid in a resin composition containing polytetrafluoroethylene and another resin other than polytetrafluoroethylene at a temperature equal to or higher than a glass transition point of the other resin, then foaming the resin composition by removing the supercritical fluid at a temperature lower than a temperature obtained by adding 15° C. to a thermal deformation starting temperature of the other resin, and subsequently cooling. In addition, the present invention relates to a resin composition foam, wherein the resin composition foam has a pore size of less than 50 μm, and the resin composition foam is any one of an open cell, a closed cell and a monolith type.

Abstract translation: 本发明涉及一种树脂组合物发泡体的制造方法，其特征在于，在超过所述其他树脂的玻璃化转变温度以上的温度下，将超临界流体溶解在含有聚四氟乙烯和聚四氟乙烯以外的其他树脂的树脂组合物中， 树脂组合物，其在低于通过将15℃加热到另一种树脂的热变形起始温度而获得的温度的温度下除去超临界流体，然后冷却。 此外，本发明涉及一种树脂组合物泡沫体，其中，所述树脂组合物泡沫的孔径小于50μm，所述树脂组合物泡沫是开孔，闭孔和整体式中的任一种。

公开(公告)号：US08293046B2

公开(公告)日：2012-10-23

申请号：US12518386

申请日：2008-03-24

Applicant: Toshinobu Sajiki ,  Satoshi Hirai

Inventor： Toshinobu Sajiki ,  Satoshi Hirai

IPC: B29C65/00

CPC classification number: C08J9/28 ,  A61L27/56 ,  C08J9/0061 ,  C08J2201/052 ,  C08J2367/04 ,  C08J2467/00

Abstract: A process for producing a porous body with different physical properties in desired regions is provided by pore forming treatment, not by bonding two or more materials made porous beforehand, with, for example, an adhesive. Raw materials are prepared, each of which contains a polymer and a raw material preparation solvent. At least two types of the raw materials having different compositions are prepared. Thereafter, the respective raw materials are frozen into desired shapes to form frozen bodies thereof. The frozen bodies thus formed are brought into contact with each other to form an assembly thereof, the assembly is exposed to a condition under which the frozen bodies begin to melt, and the assembly is then freeze-dried. Thus, a porous body having regions different in physical properties can be obtained. Such a porous body can be used as, for example, an adhesion inhibitory material or a scaffold for a cell culture.

Abstract translation: 通过成孔处理提供了在所需区域中生产具有不同物理性质的多孔体的方法，而不是通过使用例如粘合剂将两种或更多种预先多孔的材料接合。 制备原料，每种原料含有聚合物和原料制备溶剂。 制备至少两种具有不同组成的原料。 然后将各原料冷冻成所需形状，形成冷冻体。 如此形成的冷冻体彼此接触以形成其组件，该组件暴露于冷冻体开始融化的状态下，然后将组件冷冻干燥。 因此，可以获得具有物理性质不同的区域的多孔体。 这样的多孔体可以用作例如粘附抑制物质或细胞培养用支架。