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US 12,168,713 B2Granted
Materials for photoinitiated cationic ring-opening polymerization and uses thereof
AssigneeInkbit, LLC
InventorsGregory Ellson, Scott Twiddy
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to materials for photoinitiated cationic ring-opening polymerization (ROP). The present disclosure also relates to uses of the materials, e.g., in 3D printing.
Claims31
A combination comprising:
- (i) a ring-containing agent comprising an oxirane agent and an oxetane agent;
- (ii) a polyol comprising a polytetrahydrofuran diol;
- (iii) a sulfonium curing catalyst;
- (iv) a stabilizer comprising a sulfide compound;
- and
- (v) a sensitizer comprising 9,10-diethoxyanthracene, 9,10-dibutoxyanthracene, or a combination thereof;
- wherein:
- the sensitizer is present at a concentration of up to 0.5% w/w;
- and
- the combination is configured to be suitable for inkjet 3D printing with a viscosity of about 100 cp or less as measured at a temperature of about 70° C.
7 more elements
A combination comprising:
- a ring-containing agent comprising:
- (3-4-epoxycyclohexane)methyl 3′-4′-epoxycyclohexyl-carboxylate present at a concentration of 45±15% w/w;
- 3-ethyloxetane-3-methanol present at a concentration of 15±5% w/w;
- and
- an oxirane agent comprising a bisphenol moiety or an oxetane agent comprising a bisphenol moiety;
- a dialkyl sulfide present at a concentration of about 0.2% w/w;
- a polytetrahydrofuran diol present at a concentration of about 20±10% w/w;
- 9,10-diethoxyanthracene present at a concentration of up to about 0.2% w/w;
- and
- (sulfanediyldibenzene-4,1-diyl)bis(diphenylsulfonium) bis(hexafluoroantimonate) present at a concentration of 2±0.2% w/w;
- wherein the combination is configured to be suitable for inkjet 3D printing with a viscosity of about 100 cp or less as measured at a temperature of about 70° C.
8 more elements
Dependencies are inferred from the claim text.