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    • 34. 发明专利
    • Selective sintering of structurally modified polymer
    • 结构改性聚合物的选择性烧结
    • JP2010006057A
    • 2010-01-14
    • JP2009120514
    • 2009-05-19
    • Eos Gmbh Electro Optical Systemsイーオーエス ゲゼルシャフト ミット ベシュレンクテル ハフツング イレクトロ オプティカル システムズ
    • PFISTER ANDREASMUELLER FRANKLEUTERER MARTIN
    • B29C67/00C08G65/48
    • B29C67/0077B29C64/153B29C2035/0838B29K2071/00B33Y70/00C08J3/28C08L77/06
    • PROBLEM TO BE SOLVED: To provide an improvement of a process for manufacturing a three-dimensional object by selective sintering by means of electromagnetic radiation of polymer powders, which results in improved mechanical properties of the manufactured objects. SOLUTION: The powder including a polymer or copolymer having at least one of the following structural characteristics is used: (1) a structure wherein at least one branching group is provided in the backbone chain of the polymer or copolymer, and in the case of the use of poly aryl ether ketones (PAEK), the branching group is an aromatic structural unit in the backbone chain of the polymer or copolymer; (2) a structure wherein at least one end group of the backbone chain of the polymer or copolymer is modified; (3) a structure wherein at least one bulky group within the backbone chain of the polymer of copolymer is provided, and in the case of the use of poly aryl ether ketones (PAEK), the bulky group is not selected from the group consisting of phenylene, biphenylene, naphthalene and CH 2 - or isopropylidene-linked aromatics; (4) a structure wherein at least one aromatic group non-linearly linking the backbone chain is provided. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过聚合物粉末的电磁辐射的选择性烧结来提高制造三维物体的方法,这导致制造物体的机械性能的改善。 溶液:使用包含具有以下结构特征中的至少一种的聚合物或共聚物的粉末:(1)其中在聚合物或共聚物的主链中提供至少一个支化基团的结构,并且在 使用聚芳基醚酮(PAEK)的情况下,支链基团是聚合物或共聚物的主链中的芳族结构单元; (2)其中聚合物或共聚物的主链的至少一个端基被修饰的结构; (3)其中提供共聚物聚合物的主链内的至少一个庞大的基团,在使用聚芳基醚酮(PAEK)的情况下,该大体积基团不选自 亚苯基,亚联苯基,萘和CH 2 -S-或异亚丙基连接的芳族化合物; (4)提供了至少一个非线性连接主链的芳族基团的结构。 版权所有(C)2010,JPO&INPIT