Abstract:
A composition comprises a blend comprising (a) a binder comprising (i) C5 hydrocarbon resin or (ii) a resin comprising rosin acids, rosin esters, modified rosin acids, modified rosin esters or mixtures thereof, and (b) polydimethylsiloxane polyamide copolymer.
Abstract:
Hardenable dental compositions which include a fluorescent diether terephthalate and a resin system, such that when hardened, the compositions have a natural tooth fluorescence, methods of making the compositions, and dental articles made from the compositions are disclosed.
Abstract:
The invention features a dental composition containing a fluorescent organic pigment, e.g. a hydroxyl substituted aryl guanamine an or a fluorescent compound encapsulated in a thermo plastic or thermo set polymer, in an amount that provides the composition with fluorescence resembling that of natural teeth.
Abstract:
The invention features a dental composition containing a fluorescent organic pigment, e.g. a hydroxyl substituted aryl guanamine an or a fluorescent compound encapsulated in a thermo plastic or thermo set polymer, in an amount that provides the composition with fluorescence resembling that of natural teeth.
Abstract:
A composition including at least one moisture-curable, semi-crystalline (meth)acrylic oligomer represented by the formula: wherein R 1 is independently a C 16 to C 40 alkyl group; R 2 is independently a C 16 to C 40 alkyl group; each R 3 is independently a methyl, ethyl, or isopropyl group; X is a chain transfer agent as defined further below; Y is independently selected to be a methyl, ethyl, or isopropyl group; a, b and c are each independently selected to be an integer of at least 10, and a + b + c ≤ 1500; n ≥ 1; and p is 0, 1, 2, or 3. The oligomer may be used advantageously as a coating, primer or adhesion promoter in construction articles, for example, adhesives, caulks, grouts, pavement markings, paving materials, ceramic tiles, or roofing granules.
Abstract:
Orthodontic adhesives are claimed which use polymeric filler particles with defined particle size characteristics. The particle size characteristics are controlled such that these adhesives provide comparable mechanical retention and cohesive strength of conventional orthodontic adhesives when used to bond orthodontic appliances to teeth. Because polymeric fillers are generally softer than inorganic fillers, these adhesives are easier to remove from the tooth than conventional adhesives after debonding an orthodontic appliance. Embodiments of the invention include both self-curing and two-part adhesives, packaged adhesive-coated orthodontic appliances, and methods for removing a cured adhesive from a tooth surface.
Abstract:
Hardenable dental compositions which include a fluorescent diether terephthalate and a resin system, such that when hardened, the compositions have a natural tooth fluorescence, methods of making the compositions, and dental articles made from the compositions are disclosed.
Abstract:
Orthodontic adhesives are claimed which use polymeric filler particles with defined particle size characteristics. The particle size characteristics are controlled such that these adhesives provide comparable mechanical retention and cohesive strength of conventional orthodontic adhesives when used to bond orthodontic appliances to teeth. Because polymeric fillers are generally softer than inorganic fillers, these adhesives are easier to remove from the tooth than conventional adhesives after debonding an orthodontic appliance. Embodiments of the invention include both self-curing and two-part adhesives, packaged adhesive-coated orthodontic appliances, and methods for removing a cured adhesive from a tooth surface.