公开(公告)号：US20240052162A1

公开(公告)日：2024-02-15

申请号：US17766330

申请日：2020-10-12

Applicant: DSM IP ASSETS B.V.

Inventor： Katarina TOMIC ,  Rudy RULKENS ,  Michael Hubertus, Helena MEUWISSEN

IPC: C08L77/06

CPC classification number: C08L77/06 ,  C08L2205/02 ,  C08L2207/04

Abstract: The invention relates to a thermoplastic composition for use in a sliding element comprising a first polyamide being a polyamide of AA-BB, a second polyamide being a polyamide of AB type and a functional group-modified polyolefin. The invention also relates to a sliding element comprising said thermoplastic composition. The invention further relates to a sliding element comprising said thermoplastic composition for use in a lubricated sliding system, for example in a chain transmission apparatus.

公开(公告)号：US20190263966A1

公开(公告)日：2019-08-29

申请号：US16346269

申请日：2017-12-08

Applicant: DSM IP Assets B.V.

Inventor： Rudy RULKENS

IPC: C08G69/26 ,  C08L77/06 ,  C08K7/06 ,  C08K7/14

Abstract: The invention relates to a thermoplastic composition comprising (A) a semi-aromatic copolyamide comprising repeat units derived from diamine consisting primarily of tetramethylene diamine and hexamethylene diamine, or pentamethylene diamine and hexamethylene diamine, and dicarboxylic acid consisting primarily of terephthalic acid, having a VN of at least 100 ml/g; and (B) a reinforcing agent. The invention also relates to a plastic part made of the thermoplastic composition. The invention further relates to an automotive vehicle comprising a structural part made of the thermoplastic composition and to an electrical assembly comprising a plastic component made of the thermoplastic composition.

公开(公告)号：US20170152382A1

公开(公告)日：2017-06-01

申请号：US15321406

申请日：2014-06-26

Applicant: DSM IP Assets B.V.

Inventor： Johannes HOEKSTRA ,  Rudy RULKENS ,  Hans Klaas DIJK,VAN

IPC: C08L77/06 ,  B29B7/82 ,  B29C45/72 ,  B29B7/00 ,  B29C45/00

CPC classification number: C08L77/06 ,  B29B7/002 ,  B29B7/82 ,  B29C45/0001 ,  B29C45/72 ,  B29K2077/10 ,  C08G69/265 ,  C08G69/28 ,  C08G69/30 ,  C08G81/00 ,  C08K3/40 ,  C08K7/14 ,  C08L77/00 ,  C08L2205/025

Abstract: The invention relates to a process for the preparation of a semi-crystalline semi-aromatic polyamide copolymer (Co-PA) having a melting temperature (Tm-Co-PA) of at least 300° C., comprising steps of (a) preparing a first semi-crystalline semi-aromatic polyamide (A), having a melting temperature (Tm-A) of at least 310° C.; and consisting of repeat units derived from 45-50 mol % terephthalic acid; 47.5-50 mol % of diamine; and 0-5 mol % of one or more other amine and/or acid group containing components; the mol % being relative to the total molar amount of said amine and/or acid group containing components; and wherein poly-amide (A) is prepared by a process comprising direct solid-state polymerization of a diamine-dicarboxylic acid salt of the terephthalis acid and the diamine; (b) providing a polyamide (B), being an amorphous polyamide having a glass transition temperature (Tg-B) below Tm-A, or a second semi-crystalline polyamide having a melting temperature (Tm-B) below Tm-A, or a combination of the amorphous polyamide and the second semi-crystalline polyamide; (c) heating and melt-mixing polyamide (A) and polyamide (B), thereby obtaining a miscible polymer melt with a temperature (T-melt) above Tm-A; and (d) cooling the melt to a temperature below the solidification temperature of the melt, thereby obtaining a solid semi-crystalline semi-aromatic polyamide copolymer.

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。