Radiation curable compositions useful in image projection systems
Assignee3D Systems, Inc.
InventorPingyong Xu
Life of this patent
Estimating the term…
Abstract
A radiation curable composition comprising: A) at least one urethane poly(meth) acrylate compound; B) at least one poly(meth)acrylate compound; C) at least one polyester poly(meth)acrylate compound; D) at least one silicone poly(meth)acrylate compound; E) at least one visible light range free radial photopolymerization initiator; and F) at least one UV light range free radical polymerization initiator.
Claims21
A radiation curable composition comprising:
- A) at least one urethane poly(meth)acrylate compound;
- B) at least one poly(meth)acrylate compound;
- C) at least one polyester poly(meth)acrylate compound;
- D) at least one silicone poly(meth)acrylate compound;
- E) at least one visible light range free radial photopolymerization initiator;
- and
- F) at least one UV light range free radical polymerization initiator.
The composition of claim 20 wherein the colorant(s) is at least one pigment.
A radiation curable composition useful for the production of three-dimensional solid articles by visible light projection systems, said composition comprising:
- (A) about 10% to about 30% by weight of at least one urethane poly(meth)acrylate compound;
- (B) about 20% to about 40% by weight of at least diacrylate monomer;
- (C1) about 5% to about 20% by weight of at least one amine-modified polyester polyacrylate compound;
- (C2) about 15% to about 30% by weight of at least one polyester polyacrylate compound;
- (D) about 0.1% to about 3% by weight of at least one silicone polyacrylate compound;
- (E) about 0.5% to about 7% by weight of at least one visible light range free radical polymerization initiator;
- and
- (F) about 0.5% to about 7% by weight of at least one UV light range free radical polymerization initiator;
- wherein all of the weight percentages are based on total weight of the composition.
Dependencies are inferred from the claim text.