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公开(公告)号：WO2017102618A1
公开(公告)日：2017-06-22
申请号：PCT/EP2016/080569
申请日：2016-12-12
申请人： DSM IP ASSETS B.V.
发明人： ENGELS, Tom, Antonius, Philomena , DE CREMER, Gert , BERTHOUD, Romain , STEPANYAN, Roman , ROOZEMOND, Peter , OOSTERLINCK, Filip, Stefan, Emiel , SEVERN, John, Richard
摘要： The invention relates to a process for the preparation of a gel spun UHMWPE fiber comprising the steps of providing an ultra high molecular weight polyethylene composition having an intrinsic viscosity (IV) of at least 8 dl/g, a co- monomer content (CBR) of a least 0.05 SCB/1000TC, a mass averaged distribution of the co-monomer (CMAD) of at least 0.05, wherein the co-monomer has at least 4 carbon atoms, dissolving the composition in a solvent to form a polymer solution having a UHMWPE concentration of between 2 and 40 wt%, spinning the polymer solution through a multi orifice die plate to form a solution fibers, cooling the solution fiber to below 80°C to form a gel fiber, drawing the fiber in at least one step to form a drawn fiber, removing at least a portion of the solvent before, during or after the drawing, wherein the ratio CMAD to CBR is greater than 1.0. The invention further relates to a gel- spun UHMWPE fiber obtainable by the process and products comprising said gel-spun UHMWPE fiber.
摘要翻译： 本发明涉及一种制备凝胶纺UHMWPE纤维的方法，该方法包括以下步骤：提供特性粘度（IV）至少为8dl / g的超高分子量聚乙烯组合物， 至少0.05 SCB / 1000TC的共聚单体含量（CBR），至少0.05的共聚单体的质量平均分布（CMAD），其中共聚单体具有至少4个碳原子，将组合物溶解于 溶剂混合以形成UHMWPE浓度为2-40wt％的聚合物溶液，通过多孔模板将聚合物溶液纺丝以形成溶液纤维，将溶液纤维冷却至80℃以下以形成凝胶纤维，绘制 纤维在至少一个步骤中形成拉伸纤维，在拉伸之前，之中或之后除去至少一部分溶剂，其中CMAD与CBR的比率大于1.0。 本发明进一步涉及可通过该方法获得的凝胶纺UHMWPE纤维和包含所述凝胶纺UHMWPE纤维的产品。
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公开(公告)号：WO2020127757A1
公开(公告)日：2020-06-25
申请号：PCT/EP2019/086337
申请日：2019-12-19
申请人： DSM IP ASSETS B.V.
摘要： The invention relates to a foam comprising thermoplastic copolyester elastomer in an amount of at least 60 wt% with respect to the total weight of the foam, wherein the thermoplastic copolyester elastomer has a number average molecular weight (Mn) of at least 34000 g/mol and a shore D hardness measured at 3 s of between 28 to 50. The invention further relates to a process for preparing the foam and articles comprising the foam.
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公开(公告)号：WO2020127753A1
公开(公告)日：2020-06-25
申请号：PCT/EP2019/086333
申请日：2019-12-19
申请人： DSM IP ASSETS B.V.
摘要： The invention relates to a foamed composition comprising a thermoplastic copolyester elastomer, wherein the foamed composition has a relative solution viscosity of at least 4.1 as measured according to ISO 1628-5:2015 and wherein the thermoplastic copolyester elastomer comprises hard segments built up from polyester repeating units derived from at least one aliphatic diol and at least one aromatic dicarboxylic acid or an ester thereof and soft segments being polytetramethylene oxide. The invention also relates to a process for preparing the foamed composition.
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