High strength polymeric networks derived from (meth) acrylate resins with organofluorine content and process for preparing same
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United States of America Patent
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Feb 6, 2001
Grant Date -
N/A
app pub date -
Nov 12, 1997
filing date -
Nov 14, 1996
priority date (Note) -
Expired
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Abstract
Disclosed are fluorinated materials for use in dental uses and non-dental uses, e.g., adhesives or coatings. Multifunctional monomers and prepolymers with pendant (meth)acrylate groups were prepared from epoxide ring-opening reactions. Resins based on the fluorinated monomers and prepolymers with diluent comonomers, were photocured as composites with particulate fillers. Fluorine contents of the prepolymers ranged from 15 to 65%. Composites with high transverse strength (up to 120 MPa), low water sorption (as low as 0.11 mass %) and extremely low polymerization shrinkage (as low as 3.4% by volume) were obtained. The fluorinated resins may be employed to produce hydrophobic dental composite materials with high strength and low polymerization shrinkage.
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