公开(公告)号：US20070254060A1

公开(公告)日：2007-11-01

申请号：US10596069

申请日：2004-11-26

Applicant: John Errington ,  Anya Hornsey ,  Timothy Chapman ,  Maria Wake ,  Philip Quinn

Inventor： John Errington ,  Anya Hornsey ,  Timothy Chapman ,  Maria Wake ,  Philip Quinn

IPC: B29C35/08

CPC classification number: B29C44/588 ,  B29C44/105 ,  B29C44/3402 ,  B29K2995/0059 ,  B29K2995/006 ,  C08J9/122 ,  C08J9/125 ,  C08J2201/032

Abstract: Methods, associated products and apparatus are described for the production of biodegradable foam products using a controlled pressure increase due to compressed air and a controlled pressure decrease in pressure as key variables during a microwave heating cycle to produce a foamed product. The biodegradable product formed has improved characteristics including a density from 10 to 100 kg/m3; a soft and resilient structure; cushioning G-value characteristics to cushion an object with a fragility of 15 to 115; and a surface abrasion comparable to polystyrene.

Abstract translation: 描述了用于生产可生物降解的泡沫产品的方法，相关产品和设备，其使用由压缩空气控制的压力增加和在微波加热循环期间作为关键变量的受压压力降低来生产发泡产品。 形成的可生物降解的产品具有改进的特性，包括10至100kg / m 3的密度; 柔软弹性结构; 缓冲G值特征，缓冲物体，脆度为15〜115; 和与聚苯乙烯相当的表面磨损。

公开(公告)号：US20070054032A1

公开(公告)日：2007-03-08

申请号：US11598484

申请日：2006-11-09

Applicant: Jurgen Heidlas ,  Zhengfeng Zhang ,  Kurt Stork ,  Johann Wiesmuller ,  Martin Ober ,  Johann Obersteiner

Inventor： Jurgen Heidlas ,  Zhengfeng Zhang ,  Kurt Stork ,  Johann Wiesmuller ,  Martin Ober ,  Johann Obersteiner

IPC: A61L33/00 ,  B05D1/18 ,  B05D3/00

CPC classification number: C08J9/122 ,  A01C1/06 ,  A01N25/00 ,  A23K40/00 ,  A23L5/00 ,  A23L5/30 ,  A23V2002/00 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2203/08 ,  Y02P20/544 ,  A23V2300/44

Abstract: The invention relates to a method for impregnating a support matrix with solid and/or liquid compounds using a compressed gas or a compressed mixture of gases at densities ranging from 0.15 to 1.3 kg/l and at least two unsymmetrical pressure changes (pulsations). The method is further characterized in that both a multitude of impregnating substances such as biologically active compounds, technical materials or metal-organic compounds, as well as support matrices of biological origin and organic or inorganic substances can be used that have large inner surfaces and/or inner surfaces that are difficult to access.

Abstract translation: 本发明涉及一种使用压缩气体或压缩的浓度为0.15-1.3kg / l和至少两个不对称压力变化（脉动）的气体的固体和/或液体化合物浸渍载体基质的方法。 该方法的特征还在于，可以使用诸如生物活性化合物，工业材料或金属有机化合物的许多浸渍物质，以及生物来源的支持基质和有机或无机物质，其具有大的内表面和/ 或难以进入的内表面。

公开(公告)号：US20040198853A1

公开(公告)日：2004-10-07

申请号：US10486241

申请日：2004-02-09

Inventor： Hiromu Saito ,  Takafumi Oda ,  Hiroshi Kawato ,  Toshitaka Kanai ,  Nobuhiro Watanabe ,  Takehito Konakazawa

IPC: C08J009/00 ,  C08K003/00 ,  B32B003/26 ,  B29C039/00 ,  B29C044/00

CPC classification number: C08J9/122 ,  B29C44/3446 ,  B29C44/348 ,  C08J2201/032 ,  C08J2203/08 ,  C08J2383/04 ,  G02B5/08 ,  G02B5/12

Abstract: Carbon dioxide in a supercritical state is caused to permeate into a resin composition formed by sufficiently kneading a thermoplastic copolymer having a polysiloxane structure at recurring units. Subsequently, the resin composition is degassed by cooling and/or pressure reduction. As a result of degassing, a resin foam body 1 having a fine and uniform micro-cellular foam structure is obtained. The resin foam body 1 has a cyclic structure in which a resin phase 2 and a pore phase 3 are continuous and intertwined. The resin foam body 1 shows an excellent reflectivity relative to rays of light and is highly nonflammable, while it is very strong and lightweight.

Abstract translation: 使超临界状态的二氧化碳渗透到通过充分捏合具有聚硅氧烷结构的热塑性共聚物的重复单元形成的树脂组合物中。 随后，通过冷却和/或减压来使树脂组合物脱气。 作为脱气的结果，得到具有微细且均匀的微孔泡沫结构的树脂发泡体1。 树脂发泡体1具有树脂相2和细孔相3连续缠结的环状结构。 树脂发泡体1相对于光线显示出优异的反射率，并且是非常不易燃的，而它非常坚固和轻便。

公开(公告)号：US06790870B1

公开(公告)日：2004-09-14

申请号：US09516482

申请日：2000-03-01

Applicant: Joseph M. DeSimone ,  Saad A. Khan ,  Joseph R. Royer ,  Richard J. Spontak ,  Teri Anne Walker ,  Yvon J. Gay ,  Srinivas Siripurapu

Inventor： Joseph M. DeSimone ,  Saad A. Khan ,  Joseph R. Royer ,  Richard J. Spontak ,  Teri Anne Walker ,  Yvon J. Gay ,  Srinivas Siripurapu

IPC: C08J900

CPC classification number: C08J9/122 ,  B29C44/348 ,  B29C70/521 ,  B29K2101/12 ,  C08J2201/032 ,  C08J2203/08

Abstract: A method of producing a foamed material comprises contacting a mixture comprising a first thermoplastic polymer and a second thermoplastic polymer with a blowing agent, wherein the first thermoplastic polymer has a higher percent crystallinity that the second thermoplastic polymer; and subjecting the mixture to conditions sufficient to create a thermodynamic instability in the blend foam the mixture, wherein the mixture comprising the first and second thermoplastic polymers has a percent crystallinity lower than the first thermoplastic polymer.

Abstract translation: 一种生产泡沫材料的方法包括将包含第一热塑性聚合物和第二热塑性聚合物的混合物与发泡剂接触，其中第一热塑性聚合物具有比第二热塑性聚合物高的结晶度百分比; 并使混合物经受足以在混合物泡沫中产生热力学不稳定性的条件，其中包含第一和第二热塑性聚合物的混合物的结晶度百分比低于第一热塑性聚合物。

公开(公告)号：US06673286B2

公开(公告)日：2004-01-06

申请号：US09947182

申请日：2001-09-04

Applicant: Hsi-Hsin Shih ,  Kuang-Rong Lee ,  Huey-Min Lai ,  Chin-Chin Tsai ,  Yuan-Chia Chang

Inventor： Hsi-Hsin Shih ,  Kuang-Rong Lee ,  Huey-Min Lai ,  Chin-Chin Tsai ,  Yuan-Chia Chang

IPC: B29C4402

CPC classification number: C08J9/122 ,  A61L27/56 ,  A61L27/58 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2389/00 ,  Y02P20/544

Abstract: A method of making a porous biodegradable polymer is disclosed, which comprises (a) placing a biodegradable polymer and a solvent in a chamber; (b) adding a supercritical fluid to the chamber and maintaining the chamber at a predetermined temperature for a sufficient period of time to allow the supercritical fluid to dissolve into the biodegradable polymer with the help of the solvent; and (c) venting the supercritical fluid and the solvent by reducing the pressure in the chamber, thereby obtaining a porous biodegradable polymer.

Abstract translation: 公开了制备多孔生物可降解聚合物的方法，其包括（a）将可生物降解的聚合物和溶剂置于室中; （b）将超临界流体加入到室中并将室维持在预定温度足够的时间以允许超临界流体借助溶剂溶解到可生物降解的聚合物中; 和（c）通过降低室中的压力来排出超临界流体和溶剂，从而获得多孔生物可降解聚合物。

公开(公告)号：US20030181559A1

公开(公告)日：2003-09-25

申请号：US10362284

申请日：2003-02-25

Inventor： Shigeo Nishikawa ,  Eiichi Sugihara ,  Yoko Shimada

IPC: C08K003/00

CPC classification number: C08K3/22 ,  B29C44/3403 ,  B29C44/3453 ,  C08J9/122 ,  C08J2201/032

Abstract: A polymer composition (A) characterized by comprising a polymer (b) and at least one kind of substance (a) having a critical temperature of 0 to 150null C. and a critical pressure of 3 to 10 MPa, the initial content of the substance (a) in the polymer composition being 2 to 70 parts by weight relative to 100 parts by weight of the polymer (b), wherein the release duration time of the substance (a) is at least 100 hours at atmospheric pressure at 25null C.

Abstract translation: 一种聚合物组合物（A），其特征在于包含聚合物（b）和至少一种临界温度为0〜150℃，临界压力为3〜10MPa的物质（a），初始含量 聚合物组合物中的物质（a）相对于100重量份的聚合物（b）为2〜70重量份，其中物质（a）的释放持续时间在25℃的大气压下为至少100小时 C。

公开(公告)号：US06555589B1

公开(公告)日：2003-04-29

申请号：US09239618

申请日：1999-01-29

Applicant: Seng C. Tan

Inventor： Seng C. Tan

IPC: C08J914

CPC classification number: C08J9/122 ,  B29C44/348 ,  C08J2201/032 ,  C08J2371/12

Abstract: A novel class of transparent polymeric foams comprising submicron cells and a process for their production is described. The polymers are preferably high glass transition materials and the process comprises saturating a consolidated polymer shape with an inert gas at a temperature above the glass transition temperature of the polymer and under a pressure of at least 9000 psi for a period adequate to dissolve the gas in the polymer shape and then controllably cooling the polymer shape to produce the submicron cell structure.

Abstract translation: 描述了包含亚微米细胞的新一类透明聚合物泡沫及其生产方法。 聚合物优选是高玻璃化转变材料，并且该方法包括在高于聚合物的玻璃化转变温度的温度下并且在至少9000psi的压力下用惰性气体饱和固化的聚合物形状足以溶解气体的时间 聚合物形状，然后可控制地冷却聚合物形状以产生亚微米细胞结构。

公开(公告)号：US06503427B1

公开(公告)日：2003-01-07

申请号：US09588240

申请日：2000-06-06

Applicant: Takayuki Yamamoto ,  Amane Mochizuki ,  Takami Hikita ,  Tomohiro Taruno ,  Tomohide Banba ,  Mitsuhiro Kanada

Inventor： Takayuki Yamamoto ,  Amane Mochizuki ,  Takami Hikita ,  Tomohiro Taruno ,  Tomohide Banba ,  Mitsuhiro Kanada

IPC: B32B1508

CPC classification number: C08J9/12 ,  B29C44/348 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2379/08 ,  Y10T428/31681

Abstract: A heat-resistant polymer foam is disclosed which has excellent heat resistance, a fine cellular structure, and a low apparent density. The heat-resistant polymer foam comprises a heat-resistant polymer having a glass transition point of 120° C. or higher, e.g., a polyimide or polyether imide, and has an average cell diameter of from 0.01 &mgr;m to less than 10 &mgr;m. This heat-resistant polymer foam can be produced by, for example, impregnating a heat-resistant polymer under pressure with an non-reactive gas such as carbon dioxide, which is in, e.g., a supercritical state, reducing the pressure, and then heating the polymer at a temperature exceeding 120° C. to foam the polymer.

Abstract translation: 公开了一种耐热聚合物泡沫体，其具有优异的耐热性，细微结构和低表观密度。 耐热聚合物泡沫体包含玻璃化转变点为120℃以上的耐热聚合物，例如聚酰亚胺或聚醚酰亚胺，平均泡孔直径为0.01〜10μm。 该耐热性聚合物泡沫体可以通过例如在耐压聚合物中用非反应性气体如二氧化碳浸渍，例如二氧化碳，例如超临界状态，降低压力，然后加热 聚合物在超过120℃的温度下使聚合物发泡。

公开(公告)号：US06451965B1

公开(公告)日：2002-09-17

申请号：US09987050

申请日：2001-11-13

Applicant: Mitsuhiro Kanada ,  Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka

Inventor： Mitsuhiro Kanada ,  Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka

IPC: C08F600

CPC classification number: H05K1/0346 ,  C08J9/26 ,  C08J2201/032 ,  C08J2201/042 ,  C08J2203/08 ,  C08J2379/08 ,  Y02P20/544

Abstract: A method of efficiently removing a low molecular weight substance from a polyimide precursor or polyimide in which the low molecular weight substance is dispersed as micro-domains, without using a large amount of an organic solvent. The method of removing a low molecular weight substance comprises subjecting either a polymer composition having a micro-domain structure made up of a continuous phase comprising a polyimide precursor and, dispersed therein, a discontinuous phase comprising a low molecular weight substance or a polyimide composition obtained from the polymer composition by converting the polyimide precursor into a polyimide to extraction with a combination of supercritical carbon dioxide and a co-solvent to thereby remove the low molecular weight substance. The co-solvent is preferably an aprotic polar solvent, more preferably a nitrogen compound solvent or a sulfur compound solvent.

Abstract translation: 从低分子量物质作为微区域分散的聚酰亚胺前体或聚酰亚胺有效地除去低分子量物质的方法，而不使用大量的有机溶剂。 除去低分子量物质的方法包括使具有由包含聚酰亚胺前体的连续相构成的微区结构的聚合物组合物和分散在其中的包含低分子量物质的不连续相或获得的聚酰亚胺组合物 通过将聚酰亚胺前体转变为聚酰亚胺，通过超临界二氧化碳和共溶剂的组合提取，从而从聚合物组合物中除去低分子量物质。 共溶剂优选为非质子极性溶剂，更优选为氮化合物溶剂或硫化合物溶剂。

公开(公告)号：US20020045672A1

公开(公告)日：2002-04-18

申请号：US09939714

申请日：2001-08-28

Applicant: The Regents Of The University Of Michigan

Inventor： Leatrese J. Harris ,  David J. Mooney ,  Lonnie Shea

IPC: C08J009/26 ,  C08J009/00

CPC classification number: C08J9/26 ,  A61K9/204 ,  B29C44/3446 ,  B29C67/202 ,  C08J9/122 ,  C08J9/18 ,  C08J2201/032 ,  C08J2201/0446 ,  C08J2203/06 ,  C08J2205/05 ,  C08J2367/02 ,  C08J2367/04

Abstract: The invention is directed to a process for preparing porous polymer materials by a combination of gas foaming and particulate leaching steps. The invention is also directed to porous polymer material prepared by the process, particularly having a characteristic interconnected pore structure, and to methods for using such porous polymer material, particularly for tissue engineering.

Abstract translation: 本发明涉及通过气体发泡和微粒浸出步骤的组合制备多孔聚合物材料的方法。 本发明还涉及通过该方法制备的多孔聚合物材料，特别是具有特征互连孔结构，以及使用这种多孔聚合物材料，特别是用于组织工程的方法。