PHOTOPOLYMERIZABLE COMPOSITIONS FEATURING NOVEL AMINE ACCELERATOR FOR IMPROVED COLOR STABILITY AND REDUCED POLYMERIZATION STRESS THEREBY

摘要

A photopolymerization accelerator composition improving color stability and controlling polymerization shrinkage stress of cured resin and/or the resulting composite paste thereby feature by tertiary twisted biphenyldiamine with the general formula I:;R2 and R3 are each independently alkyl having from 1 to 5 carbon atoms; R and R1 are each independently hydrogen or halogen; alkyl, alkoxy, or alkylthio having from 1 to 18 carbon atoms; or phenyl and/or substituted phenyl alkoxy, or alkylthio having from 1 to 18 carbon atoms. It can be used in part with conventional photosensitizers and radically polymerizable monomers.

主权项

1. A photopolymerizable composition comprising:
a 2-substituted biphenyl tertiary diamine having a twisted biphenyl moiety; a photosensitizer; and at least one polymerizable resin consisting of at least one of a monofunctional (meth)acrylate monomer and a polyfunctional (meth)acrylate monomer.