公开(公告)号：US06750260B2

公开(公告)日：2004-06-15

申请号：US09796126

申请日：2001-02-28

申请人： Vahid Sendijarevic

发明人： Vahid Sendijarevic

IPC分类号： C08J1104

CPC分类号： C08J11/24 ,  C08G18/4837 ,  C08G18/831 ,  C08G65/2606 ,  C08G65/2609 ,  C08G2101/0008 ,  C08G2101/0083 ,  C08J2375/04 ,  Y02W30/706

摘要： A process of chemically recycling polyurethane-containing scrap. Polyurethane-containing scrap is subjected to a chemolysis reaction to produce chemolysis polyol products. The chemolysis polyol products are used as initiators in a reaction with alkylene oxide to produce oxyalkylated polyols for preparing polyurethanes.

摘要翻译： 化学回收含聚氨酯废料的方法。 对含聚氨酯的废料进行化学溶解反应以产生化学溶解多元醇产物。 化学溶解多元醇产物用作与烯化氧反应的引发剂，以制备用于制备聚氨酯的烷氧基化多元醇。

公开(公告)号：US06683119B1

公开(公告)日：2004-01-27

申请号：US09673304

申请日：2001-04-26

申请人： Gerhard Behrendt

发明人： Gerhard Behrendt

IPC分类号： C08J1104

CPC分类号： C08J11/24 ,  C08J11/18 ,  C08J2375/04 ,  Y02W30/706

摘要： The present invention provides an improved process for producing polyols from polyurethane wastes. The polyols produced by that process are further used to generate polyurethanes. According to the present invention polyurethane wastes are added to a mixture of at least one diol and at least one secondary alkyl amine and reacted at temperatures in the range of 120 to 220° to produce a mixture of polyether alcohols with a dissolved or dispersed mixture of substituted ureas.

摘要翻译： 本发明提供了由聚氨酯废物制备多元醇的改进方法。 通过该方法制备的多元醇进一步用于产生聚氨酯。 根据本发明，将聚氨酯废物加入到至少一种二醇和至少一种仲烷基胺的混合物中，并在120-220°的温度下反应，以产生聚醚醇与溶解或分散混合物的混合物 取代脲。

公开(公告)号：US06599950B2

公开(公告)日：2003-07-29

申请号：US09821181

申请日：2001-03-29

申请人： Bassam J. Jody ,  Edward J. Daniels ,  Joseph A. Pomykala, Jr.

发明人： Bassam J. Jody ,  Edward J. Daniels ,  Joseph A. Pomykala, Jr.

IPC分类号： C08J1104

CPC分类号： C08J11/06 ,  B03B5/442 ,  B29B17/02 ,  B29B17/0404 ,  B29B2017/0203 ,  B29B2017/0224 ,  B29B2017/0244 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2025/00 ,  B29K2055/02 ,  B29K2069/00 ,  B29K2105/065 ,  C08J2355/02 ,  C08J2369/00 ,  Y02W30/523 ,  Y02W30/524 ,  Y02W30/622 ,  Y02W30/625 ,  Y02W30/701

摘要： A method of separating a portion of acrylonitrile-butadiene-styrene (ABS) from a mixture containing ABS and for separating a portion of ABS and polycarbonate (PC) from a mixture of plastics containing ABS and PC is disclosed. The method includes shredding and/or granulating the mixture of plastics containing ABS and PC to provide a selected particle size; sequentially dispersing the shredded mixture of plastics in a series aqueous solutions having different specific gravities and separating the floating fraction until the desired separation is obtained. Surface tension and pH are also variable to be controlled.

摘要翻译： 公开了一种从含有ABS的混合物中分离丙烯腈 - 丁二烯 - 苯乙烯（ABS）的一部分并将ABS和聚碳酸酯（PC）的一部分从含有ABS和PC的塑料的混合物分离的方法。 该方法包括将包含ABS和PC的塑料混合物切碎和/或造粒以提供所选择的粒度; 将切碎的塑料混合物依次分散在具有不同比重的一系列水溶液中并分离浮选级分直到获得所需的分离。 表面张力和pH也可以被控制。

公开(公告)号：US06562877B2

公开(公告)日：2003-05-13

申请号：US10016545

申请日：2001-12-11

申请人： Hussain Al Ghatta

发明人： Hussain Al Ghatta

IPC分类号： C08J1104

CPC分类号： C07C51/09 ,  C07C63/26

摘要： A method for the recovery of dicarboxylic aromatic acids, in particular terephthalic acid, from manufactured aromatic polyester-resin articles for recycling, wherein the article, fragmented into chip form, is reacted in solution in a carboxylic acid with 2-6 carbon atoms and with a pKa from 4 to 6, preferably glacial acetic acid, in the presence of catalytic quantities of a strong acid with a pKa of less than 1, preferably aqueous hydrochloric acid or sulfuric acid, operating at temperatures from 160° to 250° C.

摘要翻译： 从制造的用于再循环的芳族聚酯树脂制品中回收二羧酸芳香酸，特别是对苯二甲酸的方法，其中片断形式的制品在溶液中在具有2-6个碳原子的羧酸中反应，并且 存在催化量的pKa小于1的强酸，优选盐酸或硫酸水溶液存在下，优选冰醋酸的pKa为4至6，优选为冰醋酸，在160-250℃的温度下操作。

公开(公告)号：US06548561B1

公开(公告)日：2003-04-15

申请号：US09762040

申请日：2001-02-01

申请人： Peter Müller ,  Alexander Baron von Heyking ,  Jurgen Leitzke

发明人： Peter Müller ,  Alexander Baron von Heyking ,  Jurgen Leitzke

IPC分类号： C08J1104

CPC分类号： B03B5/34 ,  B03B1/04 ,  B29B17/02 ,  B29B2017/0231 ,  B29K2027/06 ,  B29K2313/00 ,  B29K2705/00 ,  B29K2711/12 ,  B29L2031/3462 ,  Y02W30/622

摘要： In a method for recovering pure PVC from pre-disintegrated PVC containing substance mixtures, the substance mixture is soaked in a swelling agent for PVC, is supplied under pressure into an arrangement of at least two sequential hydrocyclones, wherein, in the first hydrocyclone, a heavy fraction of impurities is separated in the sink flow and a light fraction of swelled PVC particles and light impurities and plastic particles are separated in the rising flow, wherein the pre-cleaned light fraction is sorted and the particle fraction comprising the swelled PVC particles and smaller plastic particles is fed to the second hydrocyclone in which the PVC particles are separated in the sink flow. The invention also describes a device for carrying out the method.

摘要翻译： 在从预分解的含PVC物质混合物中回收纯PVC的方法中，将物质混合物浸泡在PVC的溶胀剂中，在压力下被加入到至少两个顺序的水力旋流器的排列中，其中在第一个水力旋流器中， 杂质的重部分在水槽流中分离，并且在上升流中分离膨胀的PVC颗粒和轻质杂质和塑料颗粒的轻馏分，其中分选预清洁的轻馏分，并且包含溶胀的PVC颗粒的颗粒级分和 较小的塑料颗粒被供给到其中PVC颗粒在水槽流中分离的第二个水力旋流器。 本发明还描述了一种用于执行该方法的装置。

公开(公告)号：US06545061B1

公开(公告)日：2003-04-08

申请号：US09631053

申请日：2000-08-01

申请人： William Speight Murdoch

发明人： William Speight Murdoch

IPC分类号： C08J1104

CPC分类号： C08G63/183 ,  C08G63/78

摘要： Disclosed herein is a process for depolymerizing and purifying recyclable PET comprising the steps of: (a) conducting acetolysis on recyclable PET to form terephthalic acid and ethylene glycol diacetate; (b) reacting the terephthalic acid with methanol to form dimethyl terephthalate; and (c) reacting the dimethyl terephthalate with the ethylene glycol diacetate under transesterification and polycondensation conditions to form both a PET product with an unusually low concentration of copolymerized diethylene glycol and methyl acetate. Further disclosed is a process wherein the above process is efficiently combined with a process for producing cellulose acetate. In addition to steps (a)-(c), the combination process additionally comprises the steps of: (d) carbonylating the methyl acetate with carbon monoxide to form acetic anhydride; and (e) acetylating cellulose with the acetic anhydride to form cellulose acetate and acetic acid, with the acetic acid being useful in step (a).

摘要翻译： 本文公开了一种解聚和提纯可回收PET的方法，包括以下步骤：（a）在可再循环PET上进行乙酰水解以形成对苯二甲酸和乙二醇二乙酸酯;（b）使对苯二甲酸与甲醇反应形成对苯二甲酸二甲酯; 和（c）在酯交换和缩聚条件下使对苯二甲酸二甲酯与乙二醇二乙酸酯反应以形成具有异常低浓度的共聚二乙二醇和乙酸甲酯的PET产物。进一步公开了一种方法，其中上述方法与 一种生产乙酸纤维素的方法。 除了步骤（a） - （c）之外，组合方法还包括以下步骤：（d）用一氧化碳羰基化乙酸甲酯以形成乙酸酐; 和（e）用乙酸酐乙酰化纤维素以形成乙酸纤维素和乙酸，其中乙酸在步骤（a）中是有用的。

公开(公告)号：US06465531B1

公开(公告)日：2002-10-15

申请号：US09661316

申请日：2000-09-13

申请人： Cao Minh Thai ,  Takeshi Gotanda

发明人： Cao Minh Thai ,  Takeshi Gotanda

IPC分类号： C08J1104

CPC分类号： C08G59/50 ,  C08G59/00 ,  C08J11/28 ,  Y02W30/706

摘要： A method of recycling a thermoset resin is provided, which involves contacting at least a portion of the thermoset resin with a decomposer having at least one functional group capable of reacting at a crosslink site on the thermoset resin, under conditions sufficient to break the crosslink site, to give a fluid thermoset preresin, wherein a plurality of chain ends of the preresin have functional groups thereon; and re-hardening the fluid thermoset preresin by reacting the plurality of chain ends with a rehardener having two or more groups reactive with the chain end functional groups.

摘要翻译： 提供了一种再循环热固性树脂的方法，其包括使至少一部分热固性树脂与具有至少一个能够在热固性树脂的交联部位反应的官能团的分解剂在足以破坏交联部位的条件下接触 以得到流体热固性预干燥物，其中所述前原料的多个链端在其上具有官能团; 通过使多个链端与具有两个或多个与链端官能团反应的基团的再固化剂反应来对流体热固性预干燥物进行硬化。

公开(公告)号：US06455598B1

公开(公告)日：2002-09-24

申请号：US09425389

申请日：1999-10-22

申请人： Michael Joseph Gerace ,  Yasminka Landaburu ,  Timothy P. Klosterman

发明人： Michael Joseph Gerace ,  Yasminka Landaburu ,  Timothy P. Klosterman

IPC分类号： C08J1104

CPC分类号： C08J11/00

摘要： A roof sealant composition and method for treating roof constructions is provided in which a roof sealant composition including from about 25 to 60% by weight recycled paint sludge is applied to a roof in a first coating followed by the application of a supportive mesh. A second coating of the sealant composition is applied as a top coat. Upon drying, a composite is formed which exhibits elongation of greater than 300% and a tensile strength of greater than 500 psi and provides resistance to cracking and leaks.

摘要翻译： 提供了一种用于处理屋顶结构的屋顶密封剂组合物和方法，其中将包含约25至60重量％的再循环油漆污泥的屋顶密封剂组合物施加到第一涂层中的屋顶，然后施加支撑网。 施加密封剂组合物的第二涂层作为顶涂层。 干燥后，形成复合材料，其表现出大于300％的伸长率和大于500psi的拉伸强度并且提供对裂纹和泄漏的抵抗性。

公开(公告)号：US06410607B1

公开(公告)日：2002-06-25

申请号：US09478018

申请日：2000-01-05

申请人： Michael Paul Ekart ,  William Speight Murdoch, Jr. ,  Thomas Michael Pell, Jr.

发明人： Michael Paul Ekart ,  William Speight Murdoch, Jr. ,  Thomas Michael Pell, Jr.

IPC分类号： C08J1104

CPC分类号： C08J11/24 ,  C08G63/90 ,  C08J2367/02 ,  Y02W30/706

摘要： Disclosed herein is a process for depolymerizing and purifying contaminated post-consumer polyester. In the process, depolymerization is effected by way of glycolysis in an agitated reactor vessel. The process includes the steps of contacting a contaminated polyester with an amount of a glycol to provide a molar ratio of greater than about 1 to about 5 total glycol units to total dicarboxylic acid units at a temperature between about 150 to about 300° C. and an absolute pressure of about 0.5 to about 3 bars. This reaction is conducted for a time sufficient to produce, in the reactor, an upper layer having a relatively low density contaminant floating on top of a lower layer which includes a relatively high density depolymerized oligomer of the polyester, and separating the upper layer from the lower layer. The layers may be separated by removing the upper layer from the reactor in a first stream and removing said lower layer from the reactor in a second stream.

摘要翻译： 本文公开了一种解聚和净化受污染的消费后聚酯的方法。 在该过程中，通过在搅拌反应器容器中的糖酵解进行解聚。 该方法包括以下步骤：将受污染的聚酯与一定量的二醇接触，以在约150至约300℃之间的温度下提供大于约1至约5个总二醇单元与总二羧酸单元的摩尔比，和 约0.5至约3巴的绝对压力。 该反应进行足以在反应器中产生漂浮在下层顶部上的较低密度污染物的上层的时间，该下层包括聚酯的相对高密度解聚的低聚物，并将上层与 下层。 可以通过以第一流从反应器中除去上层并且以第二流从反应器中除去所述下层来分离这些层。

公开(公告)号：US06387965B1

公开(公告)日：2002-05-14

申请号：US09711799

申请日：2000-11-13

申请人： David Andrew Benko ,  Roger Neil Beers

发明人： David Andrew Benko ,  Roger Neil Beers

IPC分类号： C08J1104

CPC分类号： C08J11/22 ,  C08J2319/00 ,  C08J2321/00 ,  Y02W30/706

摘要： This invention discloses a process for devulcanizing the surface of reclaimed rubber crumb into surface devulcanized reclaimed rubber crumb that is suitable for being recompounded and recured into high performance rubber products, said process comprising the steps of (1) heating the reclaimed rubber crumb to a temperature which is within the range of about 150° C. to about 300° C. under a pressure of at least about 3.4×106 Pascals in the presence of a solvent selected from the group consisting of alcohols and ketones, wherein said solvent has a critical temperature, which is within the range of about 200° C. to about 350° C., to devulcanize the surface of the rubber crumb thereby producing a slurry of the surface devulcanized reclaimed rubber crumb in the solvent, wherein the reclaimed rubber crumb has a particle size which is within the range of about 325 mesh to about 20 mesh, and (2) separating the surface devulcanized reclaimed rubber crumb from the solvent.

摘要翻译： 本发明公开了一种将再生橡胶碎屑的表面脱硫成表面脱硫再生橡胶屑的方法，该方法适用于重新混合再生成高性能橡胶制品，所述方法包括以下步骤：（1）将再生橡胶碎屑加热至 在选自醇和酮的溶剂的存在下，在至少约3.4×10 6帕斯卡的压力下在约150℃至约300℃的范围内，其中所述溶剂具有临界温度 ，其在约200℃至约350℃的范围内，以使橡胶屑的表面脱硫，由此在溶剂中产生表面脱硫的再生橡胶碎屑的浆料，其中回收的橡胶屑具有颗粒 尺寸在约325目至约20目的范围内，和（2）将表面脱硫的再生橡胶碎屑与溶剂分离。