Low stress flowable compositions
OwnerXiaoming Jin, Paul D. Hammesfahrinventors
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Abstract
A photopolymerizable and photocleavable (P&P) resin monomer is derived from a reactive photoresponsible moiety via various linkages to form photopolymerizable monomers and/or oligomers.
Claims7
A method of reducing stress during curing of a polymerizable material of the type having a cross-linked network with a pre-gel phase and a post-gel phase, the improvement comprising selectively breaking at least a portion of the cross-link network thereby inducing a stress-relief period.
A dental material comprising a photopolymerizable and photocleavable resin, wherein said resin forms a cross-linked network upon curing and which as a pre-gel and post-gel phase;
- at least a portion of said cross-linked network being breakable upon exposure to light.
Dependencies are inferred from the claim text.