Polyoxymethylene compositions with branched polymers
    1.
    发明授权
    Polyoxymethylene compositions with branched polymers 有权
    具有支链聚合物的聚甲醛组合物

    公开(公告)号:US09109112B2

    公开(公告)日:2015-08-18

    申请号:US13703059

    申请日:2011-06-27

    Abstract: Polyoxymethylene compositions with polyoxymethylene polymers polymer/polyol additives having a core-link-arm structure. Upon molding, these compositions exhibit stable melt viscosity and simultaneous improvement in notched Izod impact strength and/or decreased relative apparent capillary melt viscosity, and/or increased elongation at break, relative to polyoxymethylene compositions lacking such core-link-arm structure additives.

    Abstract translation: 具有聚甲醛聚合物的聚甲醛组合物具有核心 - 连接臂结构的聚合物/多元醇添加剂。 在成型时,相对于缺乏这种核 - 链 - 臂结构添加剂的聚甲醛组合物,这些组合物显示出稳定的熔体粘度和同时改进的缺口伊佐德冲击强度和/或降低的相对表观毛细管熔融粘度和/或增加的断裂伸长率。

    Polyglycerol aldehydes
    2.
    发明授权
    Polyglycerol aldehydes 有权
    聚甘油醛

    公开(公告)号:US08680200B2

    公开(公告)日:2014-03-25

    申请号:US13258662

    申请日:2010-03-26

    CPC classification number: C08G65/34 C08G65/48

    Abstract: Novel polyglycerol aldehyde polymers are described. The polymers comprise glycerol monomers connected by ether linkages and have 3 to about 170 aldehyde groups per molecule. The polyglycerol aldehydes may be reacted with various amine-containing polymers to form hydrogel tissue adhesives and sealants that may be useful for medical applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures such as intestinal anastomosis and vascular anastomosis, tissue repair, preventing leakage of fluids such as blood, bile, gastrointestinal fluid and cerebrospinal fluid, ophthalmic procedures, drug delivery, and preventing post-surgical adhesions.

    Abstract translation: 描述了新的聚甘油醛聚合物。 聚合物包括通过醚键连接并且每分子具有3至约170个醛基的甘油单体。 聚甘油醛可以与各种含胺聚合物反应以形成水凝胶组织粘合剂和密封剂,其可用于医疗应用,例如伤口闭合,补充或替换内部手术操作如缝合吻合和血管吻合的组织或缝合物,组织 修复,防止液体如血液,胆汁,胃肠液和脑脊液的渗漏,眼科手术,药物递送和预防手术后粘连。

    Tissue adhesives with modified elasticity
    4.
    发明授权
    Tissue adhesives with modified elasticity 有权
    具有改性弹性的组织粘合剂

    公开(公告)号:US08202963B2

    公开(公告)日:2012-06-19

    申请号:US13102262

    申请日:2011-05-06

    CPC classification number: C08G73/024 C08L79/02

    Abstract: An embodiment of the invention is a water soluble chain-extended polyamine product made by a process comprising reacting a multi-arm polyether amine with a bifunctional crosslinker of the formula: X1—R—X2. Another embodiment is a water soluble chain-extended polyamine product made by a process comprising reacting a multi-arm polyether having at least three arms and three electrophilic endgroups with a primary diamine crosslinker of the formula: NH2—R2—NH2, followed by treating of the chain-extended product so as to convert the remaining electrophilic endgroups to amine endgroups. Crosslinking of the chain-extended polyamine products with an oxidized polysaccharide provides useful tissue adhesives with modified elasticity, that provides greater compliance to underlying tissue, and improved stability in aqueous environments.

    Abstract translation: 本发明的一个实施方案是通过包括使多臂聚醚胺与下式的双功能交联剂反应的方法制备的水溶性延伸链多胺产物:X1-R-X2。 另一个实施方案是通过包括使具有至少三个臂的多臂聚醚和三个亲电端基与下式的二胺交联剂:NH2-R2-NH2反应的方法制备的水溶性延伸链多胺产物, 链延长产物,以便将剩余的亲电端基转化为胺端基。 链延长的多胺产物与氧化多糖的交联提供了具有改进的弹性的有用的组织粘合剂,其提供对潜在组织的更大的依从性以及在水性环境中改善的稳定性。

    TISSUE ADHESIVE AND SEALANT COMPRISING POLYGLYCEROL ALDEHYDE
    5.
    发明申请
    TISSUE ADHESIVE AND SEALANT COMPRISING POLYGLYCEROL ALDEHYDE 有权
    组合粘合剂和密封剂包含聚乙二醇醛

    公开(公告)号:US20120014909A1

    公开(公告)日:2012-01-19

    申请号:US13258745

    申请日:2010-03-26

    Abstract: A tissue adhesives and sealant formed by reacting a polyglycerol aldehyde with a water-dispersible, multi-arm amine is described. The tissue adhesive and sealant may be useful for medical and veterinary applications, including, but not limited to, wound closure, supplementing or replacing sutures or staples in internal surgical procedures such as intestinal anastomosis and vascular anastomosis, tissue repair, preventing leakage of fluids such as blood, bile, gastrointestinal fluid and cerebrospinal fluid, ophthalmic procedures, drug delivery, and to prevent post-surgical adhesions.

    Abstract translation: 描述了通过使聚甘油醛与水分散性多臂胺反应形成的组织粘合剂和密封剂。 组织粘合剂和密封剂可用于医疗和兽医应用,包括但不限于在诸如肠内吻合和血管吻合的内部手术过程中的伤口闭合,补充或替换缝合线或缝钉,组织修复,防止流体渗漏 作为血液,胆汁,胃肠液和脑脊液,眼科手术,药物输送,并防止手术后粘连。

    Polyoxymethylene Compositions with Branched Polymers
    10.
    发明申请
    Polyoxymethylene Compositions with Branched Polymers 有权
    具有支化聚合物的聚甲醛组合物

    公开(公告)号:US20130142978A1

    公开(公告)日:2013-06-06

    申请号:US13703059

    申请日:2011-06-27

    Abstract: Polyoxymethylene compositions with polyoxymethylene polymers polymer/polyol additives having a core-link-arm structure. Upon molding, these compositions exhibit stable melt viscosity and simultaneous improvement in notched Izod impact strength and/or decreased relative apparent capillary melt viscosity, and/or increased elongation at break, relative to polyoxymethylene compositions lacking such core-link-arm structure additives.

    Abstract translation: 具有聚甲醛聚合物的聚甲醛组合物具有核心 - 连接臂结构的聚合物/多元醇添加剂。 在成型时,相对于缺乏这种核 - 链 - 臂结构添加剂的聚甲醛组合物,这些组合物显示出稳定的熔体粘度和同时改进的缺口伊佐德冲击强度和/或降低的相对表观毛细管熔融粘度和/或增加的断裂伸长率。

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