专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11999816B2 Thermoplastic polyurethane from recycled raw materials 有权
公开(公告)号：US11999816B2
公开(公告)日：2024-06-04
申请号：US16980084
申请日：2019-03-12
申请人： BASF SE
发明人： Frank Prissok , Elmar Poeselt , Dirk Kempfert , Lionel Gehringer , Juergen Weiser , Matthias Goldbeck
IPC分类号： C08G18/50 , C08F4/80 , C08G18/76 , C08J11/04
CPC分类号： C08G18/5045 , C08F4/80 , C08G18/7671 , C08J11/04 , C08J2375/04
摘要： The present invention relates to a process for producing a thermoplastic polyurethane reacting at least one thermoplastic polyurethane (TPU-1) or a polyurethane mixture comprising a thermoplastic polyurethane (TPU-1) with at least one compound (V1) comprising two hydroxyl groups to obtain a mixture (G-a) comprising a thermoplastic polyurethane (TPU-2) and the reaction of the mixture (G-a) with a mixture (G-b) comprising an isocyanate composition (ZI) comprising at least one diisocyanate and optionally and a polyol composition (ZP) comprising at least one polyol (P2) to obtain a thermoplastic polyurethane (TPU target), wherein the proportion of the employed components (ZI) and (ZP) is matched to the hard segment content of the employed thermoplastic polyurethane (TPU-1), (V1) and the hard segment content of the thermoplastic polyurethane (TPU target). The invention further relates to a thermoplastic polyurethane obtained or obtainable by such a process and to the use thereof for producing extruded, injection molded and pressed articles as well as foams, cable sheathings, hoses, profiles, drive belts, fibers, nonwovens, films, moldings, soles, sporting goods, shoes, plugs, housings, damping elements for the electricals industry, automotive industry, mechanical engineering, 3D printing, medicine and consumer goods.

2. 发明公开

US20230322972A1 Supported Catalyst Systems and Processes for Use Thereof 审中-公开
公开(公告)号：US20230322972A1
公开(公告)日：2023-10-12
申请号：US18043088
申请日：2021-09-29
申请人： ExxonMobil Chemical Patents Inc.
发明人： Matthew W. HOLTCAMP , Laughlin G. MCCULLOUGH , Kevin A. STEVENS , Dongming LI , Robert L. HALBACH , Ramyaa MATHIALAGAN , Charles J. HARLAN , Timothy M. BOLLER
IPC分类号： C08F4/76 , C08F4/02 , C08F4/80 , C08F210/16 , C08F2/34
CPC分类号： C08F4/76 , C08F4/025 , C08F4/80 , C08F210/16 , C08F2/34 , C08F2410/06 , C08F2420/08
摘要： This invention relates to a supported catalyst system comprising: (i) at least one first catalyst component comprising a group 4 metallocycle containing metallocene complex; (ii) at least one second catalyst component comprising a 2,6-bis(imino)pyridyl iron complex; (iii) activator; and (iv) support. The catalyst system may be used for preparing polyolefins, such a bimodal polyethylene, typically in a gas phase polymerization.

3. 发明授权

US11697698B2 Method for producing copolymer of allyl monomer having polar group 有权
公开(公告)号：US11697698B2
公开(公告)日：2023-07-11
申请号：US17046036
申请日：2019-03-07
申请人： The University of Tokyo , SHOWA DENKO K. K. , Japan Polyethylene Corporation
发明人： Kyoko Nozaki , Shingo Ito , Junichi Kuroda , Yoshikuni Okumura , Shinya Hayashi , Minoru Kobayashi , Yuichiro Yasukawa
IPC分类号： C08F4/80 , C08F4/52 , C08F210/02 , C08F218/12 , C08F4/70 , C08F218/10 , C08K5/00 , C08K5/55
CPC分类号： C08F210/02 , C08F4/52 , C08F4/7062 , C08F4/7098 , C08F4/80 , C08F218/10 , C08K5/0091 , C08K5/55
摘要： The present invention pertains to a method for producing a copolymer of ethylene and an allyl monomer having a polar group represented by general formula (1), or a copolymer of ethylene, an allyl monomer having a polar group represented by general formula (1), and other monomers, wherein the copolymer is produced in the presence of a boron compound having a boron-hydrogen bond or a boron-carbon bond (for example, a compound represented by general formula (2)) by using a metal complex represented by general formula (C1) as a polymerization catalyst (the symbols in the formulas are as described in the description). According to the present invention, a copolymer of ethylene and an allyl monomer can be efficiently produced with high catalytic activity, wherein the copolymer has a polar group and can be used in various applications.

4. 发明申请

US20220363784A1 Use of Latent Metathesis Polymerization Systems for Photopolymerization-Based Additive Manufacturing 有权
公开(公告)号：US20220363784A1
公开(公告)日：2022-11-17
申请号：US17830632
申请日：2022-06-02
申请人： National Technology & Engineering Solutions of Sanda, LLC
发明人： Samuel Leguizamon , Leah Appelhans
IPC分类号： C08F2/50 , B33Y10/00 , B33Y70/00 , C08F32/08 , C08F4/80
摘要： Recent progress in photoinitiated ring-opening metathesis polymerization (photo-ROMP) has enabled the lithographic production of patterned films from olefinic resins. The use of a latent ruthenium catalyst (e.g., HeatMet) in combination with a photosensitizer (e.g., 2-isopropylthioxanthone) to rapidly photopolymerize metathesis-monomers (e.g., dicyclopentadiene (DCPD)) upon irradiation with UV light has previously been demonstrated. See U.S. application Ser. No. 17/677,558. In addition to the exemplary catalysts and photosensitizers described in that work, a variety of alternative catalysts and photosensitizers are commercially available that allows for tuning of thermomechanical properties, potlifes, activation rates, and irradiation wavelengths. As an example, fourteen catalysts and eight photosensitizers were surveyed for the photo-ROMP of DCPD and the structure-activity relationships of the catalysts examined. Properties relevant to photopolymerization-based additive manufacturing—potlifes, printing irradiation dose, conversion—were characterized to develop catalyst and photosensitizer libraries. Two optimized catalyst/photosensitizer systems were demonstrated in the rapid stereolithographic printing of complex, multidimensional pDCPD structures with microscale features under ambient conditions.

5. 发明申请

US20220098353A1 PROCESS FOR PREPARING WATERBORNE DISPERSION 有权
公开(公告)号：US20220098353A1
公开(公告)日：2022-03-31
申请号：US17426799
申请日：2020-01-29
申请人： COVESTRO (NETHERLANDS) B.V.
发明人： Michael Arnoldus Jacobus SCHELLEKENS , Johannes Hendrikus DE BONT , Gerardus Cornelis OVERBEEK
IPC分类号： C08F293/00 , C08F4/80 , C09D153/00 , C09J153/00 , C09D133/04 , C09J133/04 , C08F2/38
摘要： The present invention relates to a process for preparing a waterborne dispersion comprising amphiphilic block copolymer comprising at least blocks [A] and [B], and polymer P comprising ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (iii)), whereby the amount of block copolymer is higher than 0.5 and lower than 50 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P, wherein the process comprises at least the following steps: (I) subjecting at least ethylenically unsaturated monomer(s) (i) bearing acid-functional groups to a free-radical polymerization process in an aqueous medium in the presence of a free radical initiator and a cobalt chelate complex to obtain block [A], (II) subjecting at least ethylenically unsaturated monomer(s) (ii) different from monomer(s) (i) to an emulsion polymerization process in aqueous medium in the presence of block [A] and a free radical initiator, whereby the amount of ethylenically unsaturated monomer(s) (ii) in block [B] is at least 70 wt. %, relative to the total weight amount of monomers used to prepare block [B] and whereby the ethylenically unsaturated monomer(s) (ii) is (are) selected from the group consisting of methacrylic acid esters, dialkyl esters of itaconic acid, methacrylonitrile, α-methyl styrene and any mixture thereof, (III) subjecting at least ethylenically unsaturated monomer(s) (iii) different from monomer(s) (i) to an emulsion polymerization process in aqueous medium at a pH in the range of from 5 to 10 in the presence of the amphiphilic block copolymer to obtain the block copolymer-polymer P, and the process further comprises deactivating the cobalt chelate complex, which remains from step (I), prior to and/or during step (II).

6. 发明授权

US11274170B2 Polymerization process 有权
公开(公告)号：US11274170B2
公开(公告)日：2022-03-15
申请号：US16336987
申请日：2017-09-07
申请人： ExxonMobil Chemical Patents Inc.
发明人： Corrine L. Brandl , Fred D. Ehrman , James R. Lattner
IPC分类号： C08F210/16 , C08F2/34 , C08K5/01 , C08F210/02 , C08F2/00 , C08F4/14 , C08F4/24 , C08F4/80
摘要： A process including contacting one or more monomers, at least one catalyst system, and at least two condensing agents under polymerizable conditions to produce a polyolefin polymer is provided where the vapor pressure of the condensing agents is ±4 bara of the optimum vapor pressure given by the formula: optimum vapor pressure=614−716*D+2.338*P+3.603*ln(MI), where the optimum vapor pressure has units (bara), D is the polyolefin polymer density with units (g/cc), P is the polymerization condition pressure with units (barg), and MI is the polyolefin polymer melt index with units (g/10 min). The invention also relates to a process where at least three condensing agents are used.

7. 发明申请

US20220017364A1 NOVEL METAL HYDRIDES AND THEIR USE IN HYDROGEN STORAGE APPLICATIONS 有权
公开(公告)号：US20220017364A1
公开(公告)日：2022-01-20
申请号：US17301137
申请日：2021-03-26
申请人： USW Commercial Service, Ltd.
发明人： David Antonelli
IPC分类号： C01B3/00 , C01B6/00 , C01B6/02 , C08F4/76 , C08F4/78 , C08F4/80 , H01M4/90
摘要： This disclosure relates to novel metal hydrides, processes for their preparation, and their use in hydrogen storage applications.

8. 发明授权

US11136426B2 Cyclopentene monomers and methods of polymerization 有权
公开(公告)号：US11136426B2
公开(公告)日：2021-10-05
申请号：US16223391
申请日：2018-12-18
申请人： Florida State University Research Foundation, Inc.
发明人： Justin G. Kennemur
IPC分类号： C08F232/04 , C08F4/80 , C08F216/16 , C08F216/10 , C08G61/08 , B01J31/22
摘要： Cyclopentene monomers and methods of polymerization, including the polymerization of the cyclopentene monomers. The cyclopentene monomers include allylic substituted cyclopentene monomers that may be racemic or enantiopure. The methods of polymerization may permit the resulting polymers to have one or more desirable structural features.

9. 发明授权

US10370521B2 Methods for synthesis of polyolefin-containing block copolymers 有权
公开(公告)号：US10370521B2
公开(公告)日：2019-08-06
申请号：US15809847
申请日：2017-11-10
申请人： The Board of Trustees of the University of Illinois
发明人： Damien S. Guironnet , Dylan J. Walsh
IPC分类号： C08F293/00 , C08K5/541 , C08K5/54 , C08F10/02 , C08F20/06 , C08F4/80 , C08F110/02 , C08F110/06 , C08G81/02 , C08G83/00
摘要： A methodology is described for the synthesis of polyolefin containing block-copolymers using a catalytic postpolymerization modification strategy. Common polyolefin grades may be converted into macroinitiators using a cross-metathesis reaction. The functionalized polyolefins may then be used to initiate living: coordinative ring opening polymerization of cyclic ester monomer, anionic ring opening polymerization of epoxide monomer, and radical polymerization of vinylic monomer, to yield the corresponding block copolymers.

10. 发明授权

US10301401B2 Olefin polymerization catalyst and method for producing olefin polymer 有权
公开(公告)号：US10301401B2
公开(公告)日：2019-05-28
申请号：US15328196
申请日：2015-07-23
申请人： JAPAN POLYETHYLENE CORPORATION , JAPAN POLYPROPYLENE CORPORATION
发明人： Yohei Konishi , Yasuo Maruyama , Naomasa Sato , Akio Tanna
IPC分类号： C08F4/70 , C08F4/80 , C08F4/02 , C08F10/02
摘要： An object of the present invention is to provide a novel catalyst for olefin (co)polymer production, which has high activity without using a large amount of a cocatalyst and is aimed for obtaining a particulate olefin (co)polymer. The invention relates to an olefin polymerization catalyst which comprises: a solid carrier (1) that has been brought into contact with a specific compound; and a metal catalyst component (2) that contains a transition metal compound (C) containing a transition metal M belonging to Group 9, 10, or 11 of the periodic table and has a reactive group Ra.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式