摘要:
Hardenable and hardened dental compositions, and articles including such hardenable and hardened compositions, are provided. In some embodiments, the hardenable dental compositions include an acid-generating component and an acid-reactive component including one or more acid-reactive groups. Upon irradiating, and optionally heating, the hardened compositions are useful, for example, for reducing the bond strength of orthodontic appliances adhered to tooth structures with the hardened compositions.
摘要:
Carbosilane-containing polymers (including oligomers) having the following structural features: greater than one repeat unit; at least 4 Si-arylene bonds; at least 1 (meth)acrylate moiety, Si—H moiety, or both; no Si—O bonds; preferably at least 4 silicon atoms; wherein 2 silicon atoms are separated by one arylene group in each repeat unit.
摘要:
An adhesive composition comprising an emulsion polymer which comprises a (meth)acrylate copolymer and silica nanoparticles is described. The addition of the nanoparticles results in a significant increase in the overlap shear properties.
摘要:
A pre-adhesive syrup copolymer composition comprising an acid functional acrylate solute copolymer, a monomer solvent mixture, and a polyaziridine crosslinking agent is disclosed.
摘要:
The present invention provides crosslinkable compositions useful in the preparation of hydrophilic gels, and are prepared from polymers having pendent hydrophilic groups, and pendant Michael donor groups, and crosslinked by polyacryl Michael acceptor compounds.
摘要:
The present invention provides crosslinkable compositions useful in the preparation of hydrophilic gels, and are prepared from oligomers having pendent hydrophilic, poly(alkylene oxide) groups, pendent photoinitiator groups, and optionally polymerizable functional groups, and crosslinked by polyfunctional poly(alkylene oxides).
摘要:
Initiators for atom transfer radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
摘要:
Described is a pre-adhesive, curable composition comprising an acid-functional (meth)acrylate copolymer and a novel (meth)acryloyl-aziridine crosslinking agent, which when crosslinked provides a pressure-sensitive adhesive composition.
摘要:
The invention features compositions comprising at least one monomer that comprises a cyclic dithiane moiety attached to a (meth)acryloyl moiety. The composition may optionally contain additional polymerizable compounds, such as ethylenically unsaturated compounds, that are typically used in dental compositions.
摘要:
Initiators for atom transfer radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.