公开(公告)号：HK1135647A1

公开(公告)日：2010-06-11

申请号：HK10102301

申请日：2010-03-04

Applicant: 3D SYSTEMS INC

Inventor： ALAM AMIR A ,  SPRAUER JEAN J ,  BREDT JAMES F JF ,  CLARK NANETTE N ,  FLYNN MARY M ,  WILLIAMS DEREK X DX

IPC: B29C20060101 ,  B22F20060101 ,  B28B20060101 ,  C04B20060101

Abstract: A materials system and methods are provided to enable the formation of articles by three dimensional printing. The materials system includes particulate mixtures having a whitening agent and a solid particulate additive comprising an acid, the latter adapted for modifying a cure rate of an infiltrant. The materials system also includes aqueous fluids including optical brightening agents.