摘要:
A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.
摘要:
Methods of manufacturing hardenable dental articles, packaged hardenable dental articles, and methods of packaging hardenable dental articles are disclosed. In various embodiments, the manufacturing may involve molding a hardenable dental material in a mold cavity that may be lined with a mold liner. The mold body may also form the package of the hardenable dental article formed within the mold cavity. In other embodiments, the hardenable dental articles may be provided in mold cavities located in sacrificial mold bodies that may be torn, stretched, softened, dissolved, etc. to release the hardenable dental articles in the mold cavities.
摘要:
Thermosettable PSA compositions of the invention comprise a major proportion of the adhesive component of at least one acidic polymer and at least one amine-containing compound capable of reacting with acidic functional groups on the acidic polymer to cure the thermosettable PSA composition into a thermoset adhesive. The thermosettable PSA compositions are particularly useful for forming semi-structural or structural bonds. Thermoset adhesives therefrom and methods of forming the thermoset adhesives are also disclosed.
摘要:
A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.
摘要:
A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.
摘要:
A curable pressure sensitive adhesive having long shelf stability comprising (a) at least one free radically polymerized polymer; (2) at least one cationically-polymerizable monomer; (3) a photo-activatable catalyst system for the cationically-polymerizable monomer comprising either at least one organometallic complex salt or at least one onium salt; and (4) optionally, a monohydric or polyhydric alcohol, wherein there is essentially no conversion of the cationically-polymerizable monomer of the curable pressure sensitive adhesive when stored in a manner to exclude actinic radiation, and methods of making the same.
摘要:
A pressure-sensitive film composite ideally suited for providing a graphic or decorative pattern to a plasticized polyvinyl chloride surface, comprising a polymeric film containing a pressure-sensitive adhesive on a surface thereof, the adhesive comprising at least one nitrile butadiene rubber.
摘要:
A method of making a multi-chromatic dental appliance. A first article can be formed of a first material based on a first digital surface representation having a desired outer shape of the dental appliance. A portion of the first article can then be removed to form an outer layer of the dental appliance comprising a cavity dimensioned to accommodate an inner layer. A second article can be formed by filling the cavity of the first article with a second material. The second material can have at least one different optical property than the first material. The second article can be further processed, as desired. For example, a desired inner shape of the dental appliance can be formed in the second article. Such a desired inner shape can be based on a second digital surface representation of a dental object configured to receive the dental appliance.
摘要:
Disclosed is a curable silicone composition for preparing release layers and pressure sensitive adhesives, and to substrates bearing a layer of the cured composition. More specifically, this invention relates to a silicone composition, curable in the absence of both catalysts and actinic radiation comprising a cyclic anhydride copolymer and an amine-terminated polysiloxane.
摘要:
Presently described are dental implant articles, including kits, methods of making dental implant articles and methods of use. The dental implant articles (200) described herein comprise preformed dental implant abutment (210) integrated therein. The preformed dental implant abutment comprises a subgingival implant anchor-receiving end and an opposing end wherein the opposing end is permanently bonded within a sufficiently malleable dental material, which preferably comprises tooth-shaped gingival exterior surfaces (201).