公开(公告)号：US20150203641A1

公开(公告)日：2015-07-23

申请号：US14670742

申请日：2015-03-27

Applicant: DSM IP ASSETS B.V.

Inventor： Harold Jan SMELT ,  Pieter GIJSMAN ,  Martin VAN DUIN

IPC: C08J3/28

CPC classification number: C08J3/24 ,  A61L27/16 ,  A61L27/505 ,  C08F8/00 ,  C08J3/28 ,  C08J2323/06 ,  C08J2323/36 ,  C08K5/3435 ,  C08K5/3492 ,  C08K5/34926 ,  C08L23/06 ,  C08L2201/08 ,  C08L2203/02 ,  C08L2207/068 ,  C08L2666/02 ,  C08F110/02

Abstract: The invention relates to a process for producing an (ultra) high molecular weight polyethylene (HMWPE) article comprising: incorporating into the HMWPE resin a Hindered Amine Light Stabilizer (HALS) and cross-link the (U)HMWPE during or after molding the (U)HMWPE resin. In particular the invention relates to a process comprising the following steps: a) incorporating into (U)HMWPE resin a Hindered Amine Light Stabilizer (HALS) according to one of the following general formulas or combinations hereof:  wherein R1 up to and including R5 are herein independent substituents; for example containing hydrogen, ether, ester, amine, amide, alkyl, alkenyl, alkynyl, aralkyl, cycloalkyl and/or aryl groups, which substituents may in turn contain functional groups, for example alcohols, ketones, anhydrides, imines, siloxanes, ethers, carboxyl groups, aldehydes, esters, amides, imides, amines, nitriles, ethers, urethanes and any combination thereof; b) molding the (U)HMWPE resin comprising the HALS, resulting in an article; c) cross-linking and sterilizing the article via gamma radiation or electron beam radiation; d) optionally, if step b results in a stock shape, machining the stock shape into an article; wherein step c and step d can be performed in either order.

Abstract translation: 本发明涉及一种用于生产（超）高分子量聚乙烯（HMWPE）制品的方法，其包括：在成型期间或之后，将（UALS）掺杂到HMWPE树脂中并与（U）HMWPE交联， U）HMWPE树脂。 具体而言，本发明涉及一种包括以下步骤的方法：a）根据以下通式或其组合之一将（U）HMWPE树脂掺入到受阻胺光稳定剂（HALS）中：其中R 1直至并包括R 5为 本文独立取代基; 例如含有氢，醚，酯，胺，酰胺，烷基，烯基，炔基，芳烷基，环烷基和/或芳基，该取代基又可包含官能团，例如醇，酮，酸酐，亚胺，硅氧烷，醚 羧基，醛，酯，酰胺，酰亚胺，胺，腈，醚，氨基甲酸酯及其任何组合; b）模制包含HALS的（U）HMWPE树脂，得到制品; c）通过伽马辐射或电子束辐射对制品进行交联和灭菌; d）任选地，如果步骤b导致坯料形状，将坯料加工成制品; 其中步骤c和步骤d可以以任何顺序执行。

公开(公告)号：US20140288224A1

公开(公告)日：2014-09-25

申请号：US14294086

申请日：2014-06-02

Applicant: DSM IP ASSETS B.V.

Inventor： Pieter GIJSMAN ,  Wilhelmus J.M. SOUR ,  Rudy RULKENS ,  Robert H.C. JANSSEN

IPC: C08K3/08 ,  B29C45/00 ,  C08L77/02

CPC classification number: C08K3/08 ,  B29C45/0001 ,  C08K2003/0856 ,  C08L77/00 ,  C08L77/02 ,  C08L2201/08 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2666/20

Abstract: Non-fibrous-reinforced thermoplastic moulding compositions comprising a metal powder as a heat stabilizer are provided. The metal powder has a weight average particle size (dm) of at most 1 mm and the metal in the metal powder is selected from the group consisting of elementary metals from Group VB, VIIB, VIIB and VIIIB of the Periodic Table, and mixtures thereof. A thermoplastic polyamide is also provided with an Mw of at most 50,000 g/mol, or a blend of at least two thermoplastic polymers with Tmelt or Tg differing by at least 20° C., or a second thermostabilizer. The invention also relates to the use of these compositions in high temperature applications.

Abstract translation: 提供了包含金属粉末作为热稳定剂的非纤维增强热塑性模塑组合物。 金属粉末的重均粒径（dm）至多为1mm，金属粉末中的金属选自元素周期表第VB，VIIB，VIIB和VIIIB族的元素金属，以及它们的混合物 。 热塑性聚酰胺还具有至多50,000g / mol的Mw，或Tmelt或Tg至少为20℃的至少两种热塑性聚合物的共混物，或第二热稳定剂。 本发明还涉及这些组合物在高温应用中的用途。

公开(公告)号：US20140275385A1

公开(公告)日：2014-09-18

申请号：US14288174

申请日：2014-05-27

Applicant: DSM IP ASSETS B.V.

Inventor： Pieter GIJSMAN ,  Wilhelmus J.M. SOUR ,  Rudy RULKENS ,  Robert H.C. JANSSEN

IPC: C08L77/00

CPC classification number: C08L77/00 ,  C08K3/014 ,  C08K3/22 ,  C08K5/005 ,  C08K3/0041

Abstract: A thermostabilized thermoplastic moulding composition includes a) a thermoplastic polyamide composition which consists of a blend of at least two polyamides. The at least two polyamides include a1) at least 50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a first polyamide (PA-1) selected from the group consisting of polyamide-4,6, polyamide-6,6 and semi-aromatic polyamides and mixtures thereof; and a2) an amount of 1-50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a second polyamide (PA-2) selected from the group consisting of polyamide-6 and copolymers thereof. The composition also contains b) 0.001-3 mass %, relative to the total mass of the thermoplastic polyamide composition, of a copper salt; and c) 0.01-10 mass %, relative to the total mass of the thermoplastic polyamide composition, of iron oxide. The moulding composition exhibits reduced deterioration when exposed to an elevated temperature of 230° C. for a prolonged time period of 1000 hours as compared to an identical moulding composition including a Cul/KI stabilization system but not including the iron oxide.

Abstract translation: 热稳定的热塑性模塑组合物包括：a）由至少两种聚酰胺的共混物组成的热塑性聚酰胺组合物。 所述至少两种聚酰胺包括a1）相对于热塑性聚酰胺组合物的总质量为至少50质量％的选自聚酰胺-4,6，聚酰胺-6，聚酰胺-6的聚酰胺（PA-1） 6和半芳族聚酰胺及其混合物; 和a2）相对于热塑性聚酰胺组合物的总质量为1-50质量％的选自聚酰胺-6及其共聚物的第二聚酰胺（PA-2）的量。 组合物还含有相对于热塑性聚酰胺组合物的总质量为0.001-3质量％的铜盐; 和c）相对于热塑性聚酰胺组合物的总质量为0.01-10质量％的氧化铁。 与包含Cul / KI稳定体系但不包含氧化铁的相同的成型组合物相比，当与230℃的升高的温度相比长时间的1000小时时，模塑组合物显示出降低的劣化。