利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

166 条记录 (耗时 0.038 秒)

    POST-POLYMERIZATION AND POLYMERIC MATERIAL MODIFICATION THROUGH GOLD CATALYSIS AND POLYMERIC MATERIALS
    1.
    发明公开
    POST-POLYMERIZATION AND POLYMERIC MATERIAL MODIFICATION THROUGH GOLD CATALYSIS AND POLYMERIC MATERIALS 审中-公开

    公开(公告)号：US20230374178A1

    公开(公告)日：2023-11-23

    申请号：US18246884

    申请日：2021-10-25

    申请人： Jason D. Azoulay ,  Eric R. King ,  Samuel Hunt

    发明人： Jason D. Azoulay ,  Eric R. King ,  Samuel Hunt

    IPC分类号： C08F222/10 ,  C08F4/44 ,  C08F4/58 ,  C08F2/04

    CPC分类号： C08F222/10 ,  C08F4/44 ,  C08F4/58 ,  C08F2/04 ,  C08F2410/04

    摘要： The system provides new methods and processes for the reaction of polymeric/oligomeric substrates with reactants comprising alkyne/alkene and/or protic nucleophilic moieties to afford functionalized polymeric/oligomeric products through the utilization of homogenous and/or heterogenous gold catalysis. More specifically, the system provides routes for reaction of polymeric/oligomeric substrates comprising varying degrees of aromatic character with alkyne/alkene bearing molecules to afford a functionalized polymeric/oligomeric product. The system additionally provides pathways wherein the inverse methodology is realized, providing functionalized materials from the reaction of polymeric substrates bearing alkyne/alkene moieties with aromatic and/or protic nucleophilic reagents. Furthermore, in a tangential methodology, the system affords functionalized polymeric materials from the reaction of polymeric substrates bearing protic nucleophilic substituents with alkyne/alkene containing molecules. The system provides pathways for the facile modification of commodity polymer materials in order to produce value-added materials utilizing current polymer infrastructure, commodity polymer feedstocks, and post-consumer plastic waste.

    Waterborne azido-alkyne click compositions
    4.
    发明授权
    Waterborne azido-alkyne click compositions 有权

    公开(公告)号：US11261344B2

    公开(公告)日：2022-03-01

    申请号：US16694064

    申请日：2019-11-25

    申请人： Covestro LLC ,  The University Of Southern Mississippi

    发明人： Robson F. Storey ,  Alan Ekin ,  Jie Wu

    IPC分类号： C09D175/12 ,  C09J175/12 ,  C08G18/10 ,  C08G18/22 ,  C08G18/78 ,  C08G18/50 ,  C08G18/67 ,  C08G18/48 ,  C08G18/66 ,  C08G18/62 ,  C08G18/34 ,  C08G18/24 ,  C08G18/28 ,  C09D175/08 ,  C09D175/16

    摘要： A waterborne alternative polyurethane composition is provided which comprises a reaction product of: an azidated polyol; and a waterborne poly(alkynyl carbamate) prepolymer comprising a reaction product of a polyisocyanate and from 1 wt. % to 20 wt. % of an alkynol-polyether having a formula (I), R1—R2—O—R3—OH  (I), wherein, R1=a monovalent group selected from either HC≡C— or HC≡C—CO—, R2=a divalent alkylene group from 1 to 8 carbon atoms, and may be straight chain or branched and may contain cyclic moieties, and R3=a polyethylene glycol with number average molecular weight from 300-1,200 g/mol, wherein the wt. % is based on the weight of the prepolymer, wherein reaction of the azidated polyol and the waterborne poly(alkynyl carbamate) occurs at a temperature of from 20° C. to 200° C. and optionally in the presence of a catalyst. The inclusion of an alkynol-polyether does not materially alter the performance properties and reactivity of the waterborne polyurethane composition relative to a solventborne polyurethane control composition. Inclusion of the alkynol-polyether reduces the need for organic solvents by allowing for the use of water as a carrier. The inventive waterborne alternative polyurethane compositions may find use in or as coatings, adhesives, sealants, films, elastomers, castings, foams, and composites.

    SELF-REPAIRING CYCLIC OXIDE-SUBSTITUTED CHITOSAN POLYURETHANE NETWORKS
    6.
    发明申请
    SELF-REPAIRING CYCLIC OXIDE-SUBSTITUTED CHITOSAN POLYURETHANE NETWORKS 有权
    自行修复循环氧化物替代的CHITOSAN POLYURETHANE网络

    公开(公告)号：US20140127420A1

    公开(公告)日：2014-05-08

    申请号：US14152023

    申请日：2014-01-10

    申请人： The University of Southern Mississippi

    发明人： Marek W. Urban ,  Biswajit Ghosh

    IPC分类号： C09D175/04

    CPC分类号： C08B37/003 ,  A61K31/722 ,  A61K31/727 ,  A61K31/732 ,  A61K31/738 ,  C08B37/0045 ,  C08B37/0075 ,  C08G18/4081 ,  C08G18/4833 ,  C08G18/6484 ,  C08G18/792 ,  C09D175/04

    摘要： Thermosetting polymeric compositions, such as polyurethane compositions, and related methods are provided. The invention relates to coating and polymer compositions and related methods derived from a biodegradable natural polysaccharide compound such as chitosan, pectin, heparin, and combinations thereof reacted to a cyclic oxide compound, such as an oxetane, oxolane or oxepane compound. The compositions and methods of the present invention exhibit self-repairing properties upon exposure to ultraviolet (UV) light. The compositions and methods of the present invention can be used in many coating applications, such as the transportation, packaging, fashion, and biomedical industries.

    摘要翻译： 提供热固性聚合物组合物，例如聚氨酯组合物和相关方法。 本发明涉及衍生自可生物降解的天然多糖化合物如壳聚糖，果胶，肝素及其组合与环氧化物化合物如氧杂环丁烷，氧杂环丁烷或氧杂环丁烷化合物反应的涂料和聚合物组合物和相关方法。 本发明的组合物和方法在暴露于紫外（UV）光下时显示出自修复性。 本发明的组合物和方法可以用于许多涂料应用中，例如运输，包装，时尚和生物医学工业。

    Preparation of transition metal nanoparticles and surfaces modified with (co)polymers synthesized by RAFT
    7.
    发明授权
    Preparation of transition metal nanoparticles and surfaces modified with (co)polymers synthesized by RAFT 有权
    制备用RAFT合成的（共）聚合物改性的过渡金属纳米粒子和表面

    公开(公告)号：US08084558B2

    公开(公告)日：2011-12-27

    申请号：US12176670

    申请日：2008-07-21

    申请人： Charles L. McCormick, III ,  Andrew B. Lowe ,  Brent S. Sumerlin

    发明人： Charles L. McCormick, III ,  Andrew B. Lowe ,  Brent S. Sumerlin

    IPC分类号： C08F214/06

    CPC分类号： B82Y30/00 ,  C01G5/00 ,  C01G7/00 ,  C01G55/00 ,  C01P2004/64 ,  C08F2/38 ,  C08F2/44 ,  C08F4/00 ,  C09C3/10 ,  Y10T428/31

    摘要： A new, facile, general one-phase method of generating thiol-functionalized transition metal nanoparticles and surfaces modified by (co)polymers synthesized by the RAFT method is described. The method includes the steps of forming a (co)polymer in aqueous solution using the RAFT methodology, forming a colloidal transition metal precursor solution from an appropriate transition metal; adding the metal precursor solution or surface to the (co)polymer solution, adding a reducing agent into the solution to reduce the metal colloid in situ to produce the stabilized nanoparticles or surface, and isolating the stabilized nanoparticles or surface in a manner such that aggregation is minimized. The functionalized surfaces generated using these methods can further undergo planar surface modifications, such as functionalization with a variety of different chemical groups, expanding their utility and application.

    摘要翻译： 描述了通过RAFT方法合成的由（共）聚合物修饰的产生巯基官能化的过渡金属纳米颗粒和表面改性的新的，简单的通用单相方法。 该方法包括使用RAFT方法在水溶液中形成（共）聚合物的步骤，从合适的过渡金属形成胶态过渡金属前体溶液; 将金属前体溶液或表面添加到（共）聚合物溶液中，向溶液中加入还原剂以原位还原金属胶体以产生稳定的纳米颗粒或表面，并以这样的方式分离稳定的纳米颗粒或表面，使得聚集 被最小化。 使用这些方法产生的功能化表面可以进一步进行平面表面改性，例如用各种不同化学基团进行功能​​化，扩展它们的用途和应用。

    Preparation of exo-olefin terminated polyolefins via quenching with alkoxysilanes or ethers
    8.
    发明授权
    Preparation of exo-olefin terminated polyolefins via quenching with alkoxysilanes or ethers 有权
    通过用烷氧基硅烷或醚猝灭制备外烯烃封端的聚烯烃

    公开(公告)号：US08063154B2

    公开(公告)日：2011-11-22

    申请号：US12145460

    申请日：2008-06-24

    申请人： Robson F. Storey ,  Lisa K. Kemp

    发明人： Robson F. Storey ,  Lisa K. Kemp

    IPC分类号： C08F8/00

    CPC分类号： C08F8/00 ,  C08F8/26 ,  C08F110/10 ,  C08F2810/30 ,  C08F2810/40 ,  C08F4/16 ,  C08F2/38

    摘要： Provided herein are methods for preparing a polyolefin containing one or more exo-olefinic end groups on the polyolefin chain, comprising quenching an ionized polyolefin with an alkoxysilane or an ether. In some embodiments, the methods are represented by the following scheme: In some embodiments, the alkoxysilane or ether compound has the formula: wherein Y is carbon or silicon; R1 is hydrocarbyl; and R2-R4 are each, independently, hydrogen or hydrocarbyl.

    摘要翻译： 本文提供了制备在聚烯烃链上含有一个或多个外烯烃端基的聚烯烃的方法，包括用烷氧基硅烷或醚淬灭电离聚烯烃。 在一些实施方案中，所述方法由以下方案表示：在一些实施方案中，烷氧基硅烷或醚化合物具有下式：其中Y是碳或硅; R1是烃基; 和R 2 -R 4各自独立地为氢或烃基。

    Monomers and Polymers with Covalently - Attached Active Ingredients
    10.
    发明申请
    Monomers and Polymers with Covalently - Attached Active Ingredients 审中-公开
    具有共价连接活性成分的单体和聚合物

    公开(公告)号：US20090208553A1

    公开(公告)日：2009-08-20

    申请号：US12369125

    申请日：2009-02-11

    申请人： Lisa Kay Kemp ,  NIcholas Lee Hammond

    发明人： Lisa Kay Kemp ,  NIcholas Lee Hammond

    IPC分类号： A61L27/54 ,  C08L53/00 ,  A61L29/16 ,  A61L31/16

    CPC分类号： A61K31/74 ,  A61L27/34 ,  A61L29/085 ,  A61L31/10 ,  C08L53/02

    摘要： Methods to form an active agent modified monomer comprising a ring opening cyclic monomer linked to an active agent via a degradable covalent linkage. Methods to form a polymer or copolymer comprising an active agent modified monomer. Methods to form an active agent modified monomer comprising combining a ring opening cyclic monomer with a first functional group (X) and an active agent with a second functional group (Y) to form an active agent modified monomer, wherein the first (X) and second (Y) functional groups are complementary functional groups that form a degradable linkage. The active agent modified monomer can also comprise a non-degradable linkage. The method can form a ring opening cyclic monomer that includes a cyclic carbonate, cyclic epoxide, lactam, lactone, lactide anhydride, cyclic carbamate, cyclic phosphoester, or siloxane. Apparatus that includes a medical device that comprises a polymer or copolymer that comprises an active agent modified monomer.

    摘要翻译： 形成活性剂改性单体的方法，所述单体包含通过可降解共价键与活性剂连接的开环环状单体。 形成包含活性剂改性单体的聚合物或共聚物的方法。 形成活性剂改性单体的方法，包括将开环环状单体与第一官能团（X）和活性剂与第二官能团（Y）组合以形成活性剂改性单体，其中第一（X）和 第二（Y）官能团是形成可降解键的互补官能团。 活性剂改性单体还可以包含不可降解的键。 该方法可以形成环状环状单体，其包括环状碳酸酯，环状环氧化物，内酰胺，内酯，丙交酯酐，环状氨基甲酸酯，环状磷酸酯或硅氧烷。 包括包含聚合物或共聚物的医疗装置的装置，其包含活性剂改性单体。