Two-stage photocuring process for a dental composition
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United States of America Patent
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Dec 5, 1995
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N/A
app pub date -
Jul 21, 1994
filing date -
Jan 20, 1988
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Abstract
The invention relates to photopolymerizable dental compositions of ethylenically unsaturated monomers and/or polymers thereof which are curable in two curing steps. Besides being comprised of fillers, said compositions also contain a photoinitiator component I having a light absorption maximum of <450 nm and a molar extinction of the light absorption of <10 at wavelengths of 470 nm or higher, and a photoinitiator component II having a molar extinction of the light absorption of >20 at least at one wavelength of at least >450 nm.
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