发明名称 |
Laser-sintering powder with PMMI, PMMA, and/or PMMI-PMMA copolymers, process for its preparation, and moldings produced from this laser-sintering powder |
摘要 |
The present invention relates to a sinter powder composed of polyamide which also comprises PMMI, PMMA, or copolymers with PMMI, in particular PMMI-PMMA copolymers, to the use of this sinter powder for laser-sintering, and also to moldings produced from this sinter powder. The moldings made from the powder of the invention have marked advantages over conventional products in their appearance and in their surface quality, especially as far as roughness and dimensional stability during selective laser sintering (SLS) are concerned. In addition, moldings produced from the sinter powder of the invention also have better mechanical properties than moldings based on conventional nylon-12 powders, in particular in terms of modulus of elasticity and tensile strength. These moldings also have a density close to that of injection moldings. |
申请公布号 |
US7135525(B2) |
申请公布日期 |
2006.11.14 |
申请号 |
US20040799875 |
申请日期 |
2004.03.15 |
申请人 |
DEGUSSA AG |
发明人 |
PETTER CHRISTOPH;GREBE MAIK;MONSHEIMER SYLVIA;BAUMANN FRANZ-ERICH |
分类号 |
C08J3/12;C08L77/00;B29C35/08;B29C67/00;C08K3/08;C08K3/34;C08L33/00;C08L33/12;C08L33/24;C08L35/00 |
主分类号 |
C08J3/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|