Urethane acrylate composition
AssigneeStratasys, Inc.
InventorLiang Chen
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Abstract
Provided is a photopolymerizable composition comprising a blend of: a) from 40 wt. % to 70 wt. % of at least one urethane component; b) from 25 wt. % to 70 wt % of at least one monofunctional reactive diluent; c) from 0.1 wt. % to 5 wt. % of at least one initiator; and d) from 2 wt. % to 10 wt % of an amine-functional (meth)acrylate monomer. Also provided is a process of producing a photopolymerizable composition by blending these ingredients. Further provided is a process of producing a three-dimensional object, by depositing the photopolymerizable composition atop a carrier; depositing additional photopolymerizable composition atop a previously applied layer wherein the depositing of the photopolymerizable composition comprises introducing energy.
Claims11
A photopolymerizable composition comprising a blend of:
- a) from 40 wt. % to 70 wt. % of at least one urethane component;
- b) from 25 wt. % to 70 wt % of at least one monofunctional reactive diluent;
- c) from 0.1 wt. % to 5 wt. % of at least one initiator;
- and
- d) from 2 wt. % to 10 wt % of at least one amine-functional (meth)acrylate monomer,
- e) optionally, at least one multiple-functional reactive diluent,
- f) optionally, from 0.001 wt. % to 1 wt. % of an inhibitor,
- wherein the wt. % in all instances is based on total weight of the photopolymerizable composition, and wherein the amine-functional (meth)acrylate monomer is selected from the group consisting of diethylaminoethyl methacrylate, diethylaminoethyl acrylate, dimethylaminoethyl methacrylate, 2-(diisopropylamino)ethyl methacrylate, and N-[3-(dimethylamino)propyl]methacrylamide.
Dependencies are inferred from the claim text.