Phase change solid imaging material
Assignee3D Systems, Inc.
InventorsMy T. Nguyen, Vu Doan, Kelly Kwo, Loc V. Bui
Life of this patent
Estimating the term…
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.
Claims39
A formulation for use in jetting from a print head comprising:
- (a) a component to control the viscosity of the formulation, the component being a linear alkyl urethane;
- (b) a component to promote adhesion to a substrate;
- (c) a component to impart toughness to the formulation;
- and
- (d) a component to control shrinkage of the jetted formulation.
A solid imaging material for use in three-dimensional model rapid prototyping comprising:
- a component to control the viscosity of the material, the component being a linear alkyl urethane;
- a component to promote adhesion to a substrate;
- a component to impart toughness to the material;
- and
- a component to control thermal runaway in a three-dimensional build object formed of the jetted material.
A formulation for use in jetting from a print head comprising:
- (a) a component to impart toughness to the formulation;
- (b) a component to promote adhesion;
- (c) a component to control shrinkage of the jetted formulation;
- and
- (d) a component to control the viscosity of the formulation, the component being compatible with the components in a, b, and c above and having a viscosity of less than about 5 cPs.
Dependencies are inferred from the claim text.