Multi-component composition for additive manufacturing

Patent metadata

Field	Value
Publication number	US-12084588-B2
Application number	US-202117558850-A
Country	US
Kind code	B2
Filing date	Dec 22, 2021
Priority date	Dec 23, 2020
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

A multi-component composition for additive manufacturing, and related methods, are generally described.

First claim

What is claimed is:

1. A multi-component composition for additive manufacturing, the composition comprising:
at least one cyanate ester-containing compound;
an epoxy-containing compound, wherein the epoxy-containing compound comprises a bisphenol epoxy-containing compound, a novolac epoxy-containing compound, a glycidyl ether epoxy-containing compound, a cycloaliphatic epoxy-containing compound, and/or mixtures thereof; and
an acrylate- or methacrylate-containing compound,
wherein a combined amount of the at least one cyanate ester-containing compound and the epoxy-containing compound is greater than 60 wt. % and less than or equal to 80 wt. % based on a total weight of the composition.

2. The composition of claim 1 , comprising the at least one cyanate ester-containing compound in an amount between greater than or equal to 20 wt. % and less than or equal to 50 wt. % based on the total weight of the composition.

3. The composition of claim 1 , comprising the epoxy-containing compound in an amount between greater than or equal to 10 wt. % and less than or equal to 50 wt. % based on the total weight of the composition.

4. The composition of claim 1 , comprising the acrylate- or methacrylate-containing compound in an amount between greater than or equal to 10 wt. % and less than or equal to 70 wt. % based on the total weight of the composition.

5. The composition of claim 1 , further comprising a photoinitiator.

6. The composition of claim 5 , wherein the photoinitiator comprises diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO) and/or phenylbisphosphine oxide (BAPO).

7. The composition of claim 5 , comprising the photoinitiator in an amount between greater than or equal to 0.1 wt. % and less than or equal to 2 wt. % based on the total weight of the composition.

8. The composition of claim 1 , further comprising a catalyst.

9. The composition of claim 8 , comprising the catalyst in an amount less than or equal to 1 wt. % based on the total weight of the composition.

10. The composition of claim 1 , wherein the at least one cyanate ester-containing compound comprises a bisphenol-A cyanate ester-containing compound, a bisphenol-E cyanate ester-containing component, a bisphenol-F cyanate ester-containing component, a bisphenol-M cyanate ester-containing compound, a novolac cyanate ester-containing compound, and/or mixtures thereof.

11. The composition of claim 1 , wherein the acrylate- or methacrylate-containing compound comprises ethyl acrylate; 2-hydroxyethyl methacrylate; phenoxyethyl (meth)acrylate; 2-hydroxyethyl (meth)acrylate; octadecyl acrylate; cyclic trimethylolpropane formal acrylate; 2[[(butylamino)carbonyl]oxy]ethyl acrylate; lauryl acrylate; bisphenol A-glycidyl methacrylate; 2(2-ethoxyethoxy) ethyl acrylate; isobornyl (meth)acrylate ; caprolactone acrylate; 1,6 hexanediol di(meth)acrylate; tricyclodecane dimethanol di(meth)acrylate; tripropylene glycol diacrylate; urethane dimethacrylate (UDMA); ethoxylated trimethylolpropane triacrylate;
trimethylolpropane triacrylate; tris (2-hydroxy ethyl) isocyanurate triacrylate; pentaerythritol tetraacrylate; dipentaerythritol pentaacrylate; dendritic acrylates; and/or mixtures thereof.

Assignees

• Formlabs Inc

Inventors

• Arndt Eric
• Kwisnek Luke
• Morin Michael

Classifications

• C08G59/685

  Carboxylates · CPC title

• B29C64/30

  Auxiliary operations or equipment · CPC title

• B33Y40/20

  Post-treatment, e.g. curing, coating or polishing · CPC title

• B33Y70/00 Primary

  Materials specially adapted for additive manufacturing · CPC title

• B29K2063/00

  Use of {EP, i.e.} epoxy resins {or derivatives thereof}, as moulding material · CPC title