公开(公告)号：AT229415T

公开(公告)日：2002-12-15

申请号：AT00301387

申请日：2000-02-22

Applicant: 3D SYSTEMS INC

Inventor： BUI LOC V ,  DOAN VU ,  KWO KELLY

IPC: B29C41/00 ,  B29C67/00 ,  B29K77/00 ,  B29K91/00 ,  C08K5/103 ,  C08K5/12 ,  C08K5/20 ,  C08L23/16 ,  C08L77/06 ,  C08L91/06 ,  C08L93/04 ,  C09D11/00

Abstract: Phase change compositions that are solid at ambient temperature and liquid at an elevated temperature above ambient temperature are disclosed for advantageous use in selective deposition modeling methods for building three-dimensional objects. A phase change composition according to the disclosed invention is a semi-crystalline component mixture having a freezing point of at least about 68 DEG C., a melting point of at least about 88 DEG C. and a viscosity of about 13 centipoise at 135 DEG C. The composition includes a plurality of waxes having a broad melting point range and molecular weight range. Three-dimensional objects having minimal curl, delamination and stress cracks can be produced at a faster rate than heretofore known by using selective deposition modeling techniques employing the disclosed composition.

公开(公告)号：AT397046T

公开(公告)日：2008-06-15

申请号：AT00310066

申请日：2000-11-13

Applicant: 3D SYSTEMS INC

Inventor： NGUYEN MY T ,  DOAN VU ,  KWO KELLY ,  BUI LOC V

IPC: B41J2/01 ,  C09D11/00 ,  B41M5/00 ,  C08G18/28 ,  C08G18/38 ,  C08G18/71 ,  C08G69/34 ,  C08K5/00 ,  C08K5/205 ,  C08K5/29 ,  C08L77/00 ,  C08L91/06 ,  C08L93/04 ,  C08L101/00

Abstract: A component to control the viscosity of phase change material formulations is made by reacting selected nucleophiles, including fatty acid/alcohol reactants with an isocyanate, is disclosed. The addition of the isocyanate and the different nucleophiles will create a viscosity modifying component of low viscosity that can be formulated with higher molecular weight polyamide resins to achieve increased toughness in phase change solid imaging materials and carrier compositions used to make phase change ink jet inks.

公开(公告)号：DE60000946T2

公开(公告)日：2003-10-02

申请号：DE60000946

申请日：2000-02-22

Applicant: 3D SYSTEMS INC

Inventor： BUI LOC V ,  DOAN VU ,  KWO KELLY

IPC: B29C41/00 ,  B29C67/00 ,  B29K77/00 ,  B29K91/00 ,  C08K5/103 ,  C08K5/12 ,  C08K5/20 ,  C08L23/16 ,  C08L77/06 ,  C08L91/06 ,  C08L93/04 ,  C09D11/00

Abstract: Phase change compositions that are solid at ambient temperature and liquid at an elevated temperature above ambient temperature are disclosed for advantageous use in selective deposition modeling methods for building three-dimensional objects. A phase change composition according to the disclosed invention is a semi-crystalline component mixture having a freezing point of at least about 68 DEG C., a melting point of at least about 88 DEG C. and a viscosity of about 13 centipoise at 135 DEG C. The composition includes a plurality of waxes having a broad melting point range and molecular weight range. Three-dimensional objects having minimal curl, delamination and stress cracks can be produced at a faster rate than heretofore known by using selective deposition modeling techniques employing the disclosed composition.

公开(公告)号：DE60039017D1

公开(公告)日：2008-07-10

申请号：DE60039017

申请日：2000-11-13

Applicant: 3D SYSTEMS INC

Inventor： NGUYEN MY T ,  DOAN VU ,  KWO KELLY ,  BUI LOC V

IPC: B41J2/01 ,  C09D11/00 ,  B41M5/00 ,  C08G18/28 ,  C08G18/38 ,  C08G18/71 ,  C08G69/34 ,  C08K5/00 ,  C08K5/205 ,  C08K5/29 ,  C08L77/00 ,  C08L91/06 ,  C08L93/04 ,  C08L101/00

Abstract: A component to control the viscosity of phase change material formulations is made by reacting selected nucleophiles, including fatty acid/alcohol reactants with an isocyanate, is disclosed. The addition of the isocyanate and the different nucleophiles will create a viscosity modifying component of low viscosity that can be formulated with higher molecular weight polyamide resins to achieve increased toughness in phase change solid imaging materials and carrier compositions used to make phase change ink jet inks.

公开(公告)号：DE60000946D1

公开(公告)日：2003-01-23

申请号：DE60000946

申请日：2000-02-22

Applicant: 3D SYSTEMS INC

Inventor： BUI LOC V ,  DOAN VU ,  KWO KELLY

IPC: B29C41/00 ,  B29C67/00 ,  B29K77/00 ,  B29K91/00 ,  C08K5/103 ,  C08K5/12 ,  C08K5/20 ,  C08L23/16 ,  C08L77/06 ,  C08L91/06 ,  C08L93/04 ,  C09D11/00

Abstract: Phase change compositions that are solid at ambient temperature and liquid at an elevated temperature above ambient temperature are disclosed for advantageous use in selective deposition modeling methods for building three-dimensional objects. A phase change composition according to the disclosed invention is a semi-crystalline component mixture having a freezing point of at least about 68 DEG C., a melting point of at least about 88 DEG C. and a viscosity of about 13 centipoise at 135 DEG C. The composition includes a plurality of waxes having a broad melting point range and molecular weight range. Three-dimensional objects having minimal curl, delamination and stress cracks can be produced at a faster rate than heretofore known by using selective deposition modeling techniques employing the disclosed composition.