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    Process for the removal of the solvent from a polymeric solution
    62.
    发明授权
    Process for the removal of the solvent from a polymeric solution 有权
    从聚合物溶液中除去溶剂的方法

    公开(公告)号：US09090746B2

    公开(公告)日：2015-07-28

    申请号：US14357585

    申请日：2012-11-23

    Applicant: VERSALIS S.P.A.

    Inventor： Maria Parisi ,  Piero Maestri

    IPC: C08C2/06 ,  C08J3/00 ,  C08C2/00 ,  C08F6/10 ,  C08C2/04

    CPC classification number: C08J3/00 ,  C08C2/00 ,  C08C2/06 ,  C08F6/10 ,  C08J2309/06

    Abstract: A process for the removal of solvent from a polymeric solution including at least one elastomeric polymer. The polymeric solution is subjected to a stripping step by means of water vapor, in the presence of a dispersant system including: from 0.005% by weight to 1% by weight, with respect to the total weight of the dry elastomeric polymer, of at least one lamellar material; from 0.0005% by weight to 1% by weight, with respect to the total weight of the dry elastomeric polymer, of at least one cationic surfactant.

    Abstract translation: 用于从包含至少一种弹性体聚合物的聚合物溶液中除去溶剂的方法。 在分散剂体系存在下，通过水蒸汽对聚合物溶液进行汽提步骤，包括：相对于干弹性体聚合物的总重量为0.005重量％至1重量％，至少 一层薄片材料 至少一种阳离子表面活性剂，相对于干燥的弹性体聚合物的总重量为0.0005重量％至1重量％。

    PROCESS FOR THE PREPARATION OF FUNCTIONALIZED AND BRANCHED ELASTOMERIC COPOLYMERS AND USE THEREOF IN VULCANIZABLE ELASTOMERIC COMPOSITIONS
    63.
    发明申请
    PROCESS FOR THE PREPARATION OF FUNCTIONALIZED AND BRANCHED ELASTOMERIC COPOLYMERS AND USE THEREOF IN VULCANIZABLE ELASTOMERIC COMPOSITIONS 有权
    制备功能化和分支的弹性体共聚物的方法及其在可再生弹性体组合物中的用途

    公开(公告)号：US20150183913A1

    公开(公告)日：2015-07-02

    申请号：US14404703

    申请日：2013-06-10

    Applicant: Versalis S.P.A.

    Inventor： Luca Soddu

    IPC: C08F236/10 ,  C08K3/04 ,  C08K3/36

    CPC classification number: C08F236/10 ,  C08C19/44 ,  C08F212/08 ,  C08F2810/40 ,  C08K3/04 ,  C08K3/36 ,  C08L9/00 ,  C08L9/06 ,  C08L15/00 ,  C08L81/04 ,  C08L91/00 ,  C08F4/08

    Abstract: A process for the preparation of a functionalized and branched elastomeric copolymer comprising the following steps: (a) anionic copolymerization of at least one conjugated diene monomer and at least one vinyl arene, in the presence of at least one hydrocarbon solvent, of at least one lithium-based initiator, and of at least one polar modifier, obtaining a solution comprising an elastomeric copolymer; (b) reacting at least 10% by weight, preferably from 20% by weight to 100% by weight, of the polymeric chains present in the elastomeric copolymer obtained in step (a) with at least one compound having at least one functional group selected from: epoxides, ketones, esters, aldehydes, obtaining a solution comprising a functionalized elastomeric copolymer; (c) adding a quantity of lithium-based initiator to the solution obtained in step (b), from 1 to 4 times, preferably from 1.5 to 3 times, the molar quantity of lithium-based initiator used in step (a) and a compound of bromine having general formula (I): R—Br (I) wherein R represents a linear or branched C1-C30, preferably C2-C10, alkyl group, a C3-C30, preferably C4-C10, cycloalkyl group, a C6-C30, preferably C6-C12, aryl group.

    Abstract translation: 一种制备官能化和支化的弹性体共聚物的方法，包括以下步骤：（a）至少一种共轭二烯单体和至少一种乙烯基芳烃在至少一种烃溶剂的存在下至少一种 锂基引发剂和至少一种极性改性剂，得到包含弹性体共聚物的溶液; （b）使在步骤（a）中获得的弹性共聚物中存在的至少一种具有至少一个官能团的化合物选自至少10重量％，优选20重量％至100重量％的聚合物链 从：环氧化物，酮，酯，醛，得到包含官能化弹性体共聚物的溶液; （c）在步骤（b）中获得的溶液中加入一定量的锂基引发剂，为步骤（a）中使用的锂基引发剂的摩尔量和a（a）的摩尔量的1至4倍，优选1.5至3倍 具有通式（I）的溴化合物：R-Br（I）其中R表示直链或支链C 1 -C 30，优选C 2 -C 10烷基，C 3 -C 30，优选C 4 -C 10环烷基，C 6 -C30，优选C6-C12，芳基。

    METHOD FOR PREPARING AMIDINES
    69.
    发明公开
    METHOD FOR PREPARING AMIDINES 审中-公开

    公开(公告)号：US20240166656A1

    公开(公告)日：2024-05-23

    申请号：US18549412

    申请日：2022-03-03

    Applicant: VERSALIS S.P.A.

    Inventor： Nicola VECCHINI ,  Federico MONDINI

    IPC: C07D487/04 ,  B01J21/04

    CPC classification number: C07D487/04 ,  B01J21/04

    Abstract: A method for preparing amidines or derivatives thereof includes the step of subjecting N-(amino-alkyl) lactams to dehydration in the presence of a heterogeneous catalyst selected from a Lewis acid or an acid resin. The process includes selecting an acid catalyst from heterogeneous acid catalysts selected from Lewis acids or Lewis acids with Bronsted acid components, or heterogeneous acid catalysts based on acid resins.

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