Cyanate ester dual cure resins for additive manufacturing
AssigneeCarbon, Inc.
InventorsMatthew S. Menyo, Jason P. Rolland
Life of this patent
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Abstract
A method of forming a three-dimensional object is carried out by: (a) providing a cyanate ester dual cure resin; (b) forming a three-dimensional intermediate from said resin, where said intermediate has the shape of, or a shape to be imparted to, said three-dimensional object, and where said resin is solidified by exposure to light; (c) optionally washing the three-dimensional intermediate, and then (d) heating and/or microwave irradiating said three-dimensional intermediate sufficiently to further cure said resin and form said three-dimensional object. Compositions useful for carrying out the method, and products made from the method, are also described.
Claims15
A method of forming a three-dimensional object, comprising:
- (a) providing a cyanate ester dual cure resin;
- (b) forming, by additive manufacturing, a three-dimensional intermediate from said resin, where said intermediate has the shape of, or a shape to be imparted to, said three-dimensional object, and wherein said resin is solidified by exposure to light;
- (c) optionally washing the three-dimensional intermediate, and then
- (d) heating and/or microwave irradiating said three-dimensional intermediate sufficiently to further cure said resin and form said three-dimensional object;
- wherein said cyanate ester dual cure resin comprises:
- (i) a photoinitiator;
- (ii) monomers and/or prepolymers that are polymerizable by exposure to actinic radiation or light;
- (iii) optionally, a light absorbing pigment or dye;
- (iv) a metal catalyst;
- (v) at least one cyanate ester compound, and/or a prepolymer thereof, each said cyanate ester compound independently having a structure of Formula I:
- RO·C≡Nm (I)
- wherein m is 2, 3, 4, or 5, and R is an aromatic or aliphatic group;
- and
- (vi) optionally a filler;
Dependencies are inferred from the claim text.