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公开(公告)号:US20240182665A1
公开(公告)日:2024-06-06
申请号:US18285684
申请日:2022-04-05
IPC分类号: C08J11/24 , B01J31/02 , B01J31/22 , C07C29/128 , C07C67/475 , C08J11/14 , C08J11/28
CPC分类号: C08J11/24 , B01J31/0237 , B01J31/2226 , C07C29/1285 , C07C67/475 , C08J11/14 , C08J11/28 , B01J2231/005 , B01J2531/26 , C08J2367/02 , C08J2367/04 , C08J2377/06
摘要: The disclosure relates to a method for chemically recycling a condensation polymer, which includes melt-processing a mixture including a condensation polymer and an internal catalyst to increase the amorphous content of the polymer, followed by depolymerizing polymer in a reaction medium with a reactive solvent. Melt-processing and quenching of a condensation polymer generally reduces the crystalline content of the polymer and correspondingly increases the amorphous content of the polymer, which makes the polymer more amenable to subsequent depolymerization. Inclusion of the internal catalyst, for example a volatile organic catalyst, during melt-processing not only improves the relative degree of amorphization during melt-processing, but it also enhances the rate and conversion of the depolymerization stage that would otherwise be rate-limited by mass transport of an external catalyst from the bulk reaction medium to the polymer surface for depolymerization.
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公开(公告)号:US11866404B2
公开(公告)日:2024-01-09
申请号:US17350979
申请日:2021-06-17
申请人: 9449710 CANADA INC.
发明人: Adel Essaddam , Fares Essaddam
IPC分类号: C07C69/82 , C08L101/00 , C07C29/09 , C07C29/128 , C07C31/20 , C07C51/09 , C07C67/08 , C08F8/50 , C08J7/02 , C08J11/24 , C08J11/26 , C08K5/05 , C08L67/03
CPC分类号: C07C69/82 , C07C29/095 , C07C29/1285 , C07C31/202 , C07C51/09 , C07C67/08 , C08F8/50 , C08J7/02 , C08J11/24 , C08J11/26 , C08K5/05 , C08L67/03 , C08L101/00 , C08J2367/03 , C07C29/1285 , C07C31/202 , C07C67/08 , C07C69/82
摘要: The present disclosure relates to the formation of terephthalate esters. The present invention also relates to the depolymerization of polyethylene terephthalate (PET) or poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate) and the recovery of terephthalate esters
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公开(公告)号:US20210114953A1
公开(公告)日:2021-04-22
申请号:US16972291
申请日:2019-06-07
申请人: Amyris, Inc.
IPC分类号: C07C1/32 , C12P5/02 , C07C209/60 , C07C17/093 , C07C67/10 , C07C29/128 , C07C315/00 , C07C315/04 , A61K39/39
摘要: The present disclosure provides methods for preparing polyunsaturated hydrocarbons, such as E,E-farnesol, farnesyl acetate and squalene, by base catalyzed addition of a dialkylamine to a 3-methylene-1-alkene, such as farnesene. The present disclosure also provides compositions including one more farnesene derivatives prepared using the disclosed methods.
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公开(公告)号:US10131620B2
公开(公告)日:2018-11-20
申请号:US15285024
申请日:2016-10-04
发明人: Chien Fu Huang , Yi Ta Tsai
摘要: The present disclosure relates to a recycling method for producing dimethyl carbonate and dimethyl carbonate derivatives. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.
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公开(公告)号:US20180170845A1
公开(公告)日:2018-06-21
申请号:US15736999
申请日:2016-06-27
发明人: Jonathan M. CURTIS , Tolibjon S. OMONOV , Ereddad KHARRAZ , Xiaohua KONG , Hossein M. TAVASSOLI-KAFRANI
CPC分类号: C07C29/48 , B01J31/0212 , B01J41/08 , C07C29/1285 , C07C29/132 , C07C31/205 , C07C67/02 , C07C67/31 , C07D301/12 , C08G18/36 , C11C3/003 , C11C3/006 , C11C3/06 , C07C69/708
摘要: A method for preparation of polyols from an unsaturated TAG oil that involves first epoxidizing the unsaturated TAG oil; then subjecting the epoxidized TAG oil to transesterification using a diol and/or triol in the presence of a catalyst to produce hydroxyalkyl esters of fatty acid epoxides; and finally hydroxylating the transesterification product using a diol and/or triol and a solid acid catalyst to obtain a polyol with relatively high hydroxyl value and low viscosity.
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公开(公告)号:US09611279B2
公开(公告)日:2017-04-04
申请号:US14769147
申请日:2014-03-27
发明人: Takashi Ohshima , Ryo Yazaki , Yuki Yokote , Yoshimasa Matsushima
IPC分类号: C07F3/06 , C07D233/61 , C07C53/18 , B01J31/16 , B01J31/18 , B01J31/22 , C07B41/12 , C07C29/128
CPC分类号: C07F3/06 , B01J31/1691 , B01J31/181 , B01J31/1815 , B01J31/182 , B01J31/2208 , B01J31/2226 , B01J2231/49 , B01J2531/0205 , B01J2531/0216 , B01J2531/26 , C07B41/12 , C07C29/1285 , C07C53/18 , C07D233/61 , C07C33/22
摘要: A zinc complex characterized in exhibiting an octahedral structure and being configured from repeating units represented by general formula (I): wherein L represents a linker region, and R1 represents a C1-4 alkyl group, which can have a halogen atom.
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公开(公告)号:US20160264498A1
公开(公告)日:2016-09-15
申请号:US15162805
申请日:2016-05-24
申请人: PROMERUS, LLC
发明人: ANDREW BELL , DANE JABLONSKI
IPC分类号: C07C29/128 , B01J31/04 , C07F7/18 , C07C67/293 , C07C67/54
CPC分类号: C07C29/1285 , B01J31/04 , B01J2231/44 , B01J2531/004 , C07C67/02 , C07C67/293 , C07C67/54 , C07C2602/42 , C07C2603/40 , C07C2603/54 , C07F7/1804 , C07F7/188 , C07C69/145 , C07C33/12
摘要: A process for the preparation of a variety of high purity norbornene alkanol monomers and their derivatives is disclosed and claimed. Specifically, a process for the preparation of industrial scale high purity norbornene methanol and its silyl ether derivative is disclosed and claimed. The high purity monomers prepared in accordance with the process of this invention are useful in a variety of applications including but not limited to the preparation of high quality and high purity polynorbornenes having utility in a variety of electronic applications, among various other applications.
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公开(公告)号:US20160145167A1
公开(公告)日:2016-05-26
申请号:US14888512
申请日:2014-05-02
IPC分类号: C07B41/12 , B01D15/18 , C07B41/02 , C07C67/03 , C07C29/128
CPC分类号: C07B41/12 , B01D15/1821 , B01D15/1857 , B01D15/363 , B01D15/3857 , C07B41/02 , C07C29/1285 , C07C67/03 , Y02P20/127 , C07C69/14
摘要: The present disclosure provides for a process for an equilibrium limited reaction using reactive chromatography unit (RCU) in which a first organic donor reactant (FODR) and a second organic acceptor reactant (SOAR) react to form a product mixture of a first acceptor product (FAP) and a second donor co-product (SDCP). The equilibrium-limited reaction does not produce water. The RCU has separation media to separate the product mixture into a raffmate and an extract. The FODR is in a stoichiometric deficit relative to the SOAR for the equilibrium limited reaction, so that the SOAR acts as the eluent for both the raffmate and the extract, and so as not to produce an azeotrope of FODR and the SDCP in the extract.
摘要翻译: 本公开提供使用反应性色谱单元(RCU)的平衡限制反应的方法,其中第一有机供体反应物(FODR)和第二有机受体反应物(SOAR)反应以形成第一受体产物( FAP)和第二供体共同产物(SDCP)。 平衡有限的反应不产生水。 RCU具有分离介质,以将产物混合物分离成拉夫特和提取物。 FODR相对于SOAR为平衡有限反应的化学计量缺口,使得SOAR作为萃取物和萃取物的洗脱液,并且不产生FODR的共沸物和萃取物中的SDCP。
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公开(公告)号:US20160052844A1
公开(公告)日:2016-02-25
申请号:US14882569
申请日:2015-10-14
IPC分类号: C07C29/128 , C09D175/04 , C08F20/02 , C07C31/00 , C08G18/32 , C07C57/04
CPC分类号: C09D175/04 , C08G18/3203 , C08G18/3206 , C08G18/6446 , C08G18/6511 , C08G18/7664 , C08G2101/0025 , C08G2105/02 , C08J9/141 , C08J2201/022 , C08J2203/14 , C08J2205/06 , C08J2205/10 , C08J2375/04
摘要: The present invention relates to the chemical digestion of keratin, such as avian feathers and wool. The digestion product is made by heating the feathers or wool with a solvent selected from glycols, alkanolamines, polyamines, and combinations thereof. The resulting digested keratin product is a keratin-derived polyol useful for making polymeric materials such as polyurethanes. The digestion products provide a sustainable alternative to petrochemical based intermediates.
摘要翻译: 本发明涉及角蛋白的化学消化,例如禽类羽毛和羊毛。 消化产物通过用选自二醇,烷醇胺,多胺及其组合的溶剂加热羽毛或羊毛制成。 所得消化的角蛋白产品是用于制备聚合物材料如聚氨酯的角蛋白衍生的多元醇。 消化产品为石化基中间体提供了可持续的替代方案。
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公开(公告)号:US09156770B2
公开(公告)日:2015-10-13
申请号:US14125876
申请日:2012-06-28
申请人: Anthony A. Birkbeck
发明人: Anthony A. Birkbeck
IPC分类号: C07C67/293 , C07C67/297 , C07C67/00 , C07C67/283 , C07C69/16 , C07C69/28 , C07C69/63 , C07C29/128 , C07C47/21 , C07C69/145 , C07C69/602
CPC分类号: C07C69/602 , C07C29/1285 , C07C29/132 , C07C47/21 , C07C67/00 , C07C67/283 , C07C67/293 , C07C67/297 , C07C69/145 , C07C69/16 , C07C69/28 , C07C69/63 , C07C2602/42 , C07C69/24 , C07C33/14
摘要: The present invention concerns a process for the preparation of a compound of formula (I) in the form of any one of its stereoisomers or mixtures thereof, wherein R represents a C2-C10 group of formula CORa wherein Ra is an alkyl or alkenyl group optionally comprising one or two ether functional groups or is a phenyl or benzyl group optionally substituted by one to three alkyl, alkoxyl, carboxyl, acyl, amino or nitro groups or halogen atoms.
摘要翻译: 本发明涉及制备其任何一种立体异构体或其混合物形式的式(I)化合物的方法,其中R表示式CORa的C 2 -C 10基团,其中R a为任选的烷基或烯基 包括一个或两个醚官能团,或是任选被一至三个烷基,烷氧基,羧基,酰基,氨基或硝基或卤素原子取代的苯基或苄基。
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