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公开(公告)号:US09902860B1
公开(公告)日:2018-02-27
申请号:US15252182
申请日:2016-08-30
Inventor: Jifan Li , Wai Yan Chan , Ka Kit Yee , Ka Leung Kevin Cheuk
IPC: C08F2/48 , C08F2/50 , C08G61/04 , C09D4/00 , C09D11/101
CPC classification number: C09D4/00 , C08F2222/1033 , C09D11/03 , C09D11/101 , C08F222/10 , C08F220/20 , C08F2220/1891
Abstract: The present invention provides photopolymer compositions for 3D printing which have low viscosity, proper curing rate, low volume shrinkage, and low ash content. Such compositions may be used in 3D printing for direct investment casting of products and rapid prototyping.