Polyurethane elastomer dental appliance
OwnerLi Luo Skelton, Danielle Ruggieroinventors
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Abstract
A dental jacket made of a hard, solvent free, substantially non-hydrophilic polyurethane elastomer. The jacket elastomer has a hardness of not less than about Shore D65. A polyester or polyether polyol with a functionality greater than two and a molecular weight greater than one hundred is reacted with an isocyanate prepolymer prepared from one or more branched polyester or polyether polyols with a functionality greater than two; and then blending prepolymer and first polyester or polyether polyol with nanoparticles. In one embodiment, the polypropylene glycol triether and the isocyanate prepolymer comprises dicyclohexylmethane 4,4′-diisocyanate.
Claims10
A dental appliance made of a hard, solvent free, substantially non-hydrophilic polyurethane, elastomer having a hardness of not less than about Shore D65 comprising:
- a polyester or polyether polyol with a functionality greater than two and a molecular weight greater than one hundred reacted with an isocyanate prepolymer prepared from one or more branched polyester or polyether polyols with a functionality greater than two, said prepolymer and first polyester or polyether polyol blended with nanoparticles.
A synthetic resin-based dental jacket made of a composition comprising:
- a hard, solvent free, substantially hydrophilic polyurethane elastomer incorporating nanoparticles, said elastomer having a hardness of not less than about Shore D65, said hard elastomer consisting essentially of the reaction product of a polyester or polyether polyol with a functionality greater than two and a molecular weight greater than one hundred and an isocyanate prepolymer prepared from one or more branched polyester or polyether polyols, said prepolymer with a functionality greater than two, said isocyanate being either aliphatic or aromatic.
Dependencies are inferred from the claim text.