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US 2019/0338066 A1Published application
Plasticized thermoset resin, and associated cured resin, method of curing, and article comprising cured resin
AssigneeUniversity of Massachusetts
InventorsShaw Ling Hsu, Jigneshkumar P. Patel
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Abstract
A curable composition includes a hydrogen-bonded prepolymer, a plasticizer that includes an alkyl benzoate or an alkyl phenyl ketone, and, optionally, a crosslinking agent. The plasticizer promotes a high extent of crosslinking and provides a more positive health and safety profile than the incumbent plasticizer, furfural. A cured resin and a method of forming it are described.
Claims34
A curable composition, comprising:
- a hydrogen-bonded prepolymer, wherein the hydrogen-bonded prepolymer is a phenol-formaldehyde prepolymer, phenol-furfural prepolymer, aniline-formaldehyde prepolymer, urea-formaldehyde prepolymer, cresol-formaldehyde prepolymer, resorcinol-formaldehyde prepolymer, melamine-formaldehyde prepolymer, polyimide, polyurethane, epoxy resin, or a combination thereof;
- a plasticizer comprising a C1-12-alkyl benzoate, a C1-12-alkyl phenyl ketone, a C1-12-alkyl phenylacetaldehyde, a C1-12-alkyl benzaldehyde, or a combination thereof, preferably wherein the plasticizer comprises a C1-12-alkyl benzoate, a C1-12-alkyl phenyl ketone, or a combination thereof;
- and
- optionally, a crosslinking agent.
1 more element
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A crosslinked composition, comprising:
- a hexamethylenetetramine-crosslinked phenol-formaldehyde resin;
- and
- a plasticizer comprising a C1-12-alkyl benzoate, a C1-12-alkyl phenyl ketone, a C1-12-alkyl phenylacetaldehyde, a C1-12-alkyl benzaldehyde, or a combination thereof, preferably wherein the plasticizer comprises a C1-12-alkyl benzoate, a C1-12-alkyl phenyl ketone, or a combination thereof.
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Dependencies are inferred from the claim text.