知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

453 条记录 (耗时 0.035 秒)

    PROCESS FOR THE MANUFACTURING OF A POLYMER WITH URETHANE GROUPS
    1.
    发明公开
    PROCESS FOR THE MANUFACTURING OF A POLYMER WITH URETHANE GROUPS 审中-公开

    公开(公告)号：US20240279199A1

    公开(公告)日：2024-08-22

    申请号：US18595535

    申请日：2024-03-05

    申请人： BASF SE

    发明人： Peter RUDOLF ,  Indre Thiel ,  Hans-Josef Thomas ,  Hannes Blattmann

    IPC分类号： C07D327/04 ,  C08G71/04

    CPC分类号： C07D327/04 ,  C08G71/04

    摘要： A process for the manufacturing of a polymer with urethane groups can be performed. In a first alternative a five-membered cyclic monothiocarbonate, a compound with at least two amino groups selected from primary or secondary amino groups, and a compound with at least two function groups that react with a —SH group are reacted. In a second alternative a five-membered cyclic monothiocarbonate and a compound with at least one primary or secondary amino group, and at least one function group that reacts with an —SH group are reacted.

    Process for the manufacturing of a polymer with urethane groups
    3.
    发明授权
    Process for the manufacturing of a polymer with urethane groups 有权

    公开(公告)号：US11958823B2

    公开(公告)日：2024-04-16

    申请号：US16639339

    申请日：2018-08-07

    申请人： BASF SE

    发明人： Peter Rudolf ,  Indre Thiel ,  Hans-Josef Thomas ,  Hannes Blattmann

    IPC分类号： C07D327/04 ,  C08G71/04

    CPC分类号： C07D327/04 ,  C08G71/04

    摘要： Object of the invention is a process for the manufacturing of a polymer with urethane groups, wherein in a first alternative A) a five-membered cyclic monothiocarbonate B) a compound with at least two amino groups, selected from primary or secondary amino groups, and C) a compound which at least two functional groups that react with a group —SH or, in case of a carbon-carbon triple bond as functional group that react with a group —SH, a compound with at least one carbon-carbon triple bond are reacted or wherein in a second alternative A) a five-membered cyclic monothiocarbonate and D) a compound with at least one primary or secondary amino group and at least one functional group that reacts with a group —SH.

    NON-ISOCYANATE POLYURETHANES FROM BIO-BASED POLYOLS
    5.
    发明公开
    NON-ISOCYANATE POLYURETHANES FROM BIO-BASED POLYOLS 审中-公开

    公开(公告)号：US20230340200A1

    公开(公告)日：2023-10-26

    申请号：US18007992

    申请日：2021-06-03

    申请人： CLEMSON UNIVERSITY RESEARCH FOUNDATION

    发明人： SRIKANTH PILLA ,  JAMES SCOTT STERNBERG

    IPC分类号： C08G71/04

    CPC分类号： C08G71/04 ,  C08G2101/00

    摘要： Bio-based polymer precursors and non-isocyanate polyurethanes (NIPU) and non-isocyanate polyurethane foams (NIPUF) that can be formed from the precursors, as well as methods for the synthesis of the precursors and the polyurethane products are described. The bio-based polymer precursors are formed through functionalization of a bio-based polyol, e.g., lignin, with cyclic carbonates. The bio-based polyol starting materials need not be pre-processed and can include Kraft lignin. NIPU/NIPUF can be synthesized through a ring opening curing reaction of cyclic carbonates of the bio-based polyol precursor with diamines. The carbonates and diamines can include non-toxic bio-based carbonates.