Abstract:
The present invention provides novel compositions prepared from a first oligomer containing reactive functional groups capable of reaction at effective rates (at normal processing temperatures) with a co-reactive second component possessing functionality that is complementary to that of the first oligomer. The compositions may be used as coatings, including hard surface coatings, clear coatings, powder coatings and pattern coatings; as adhesives, including pressure sensitive adhesives and not melt adhesives; as sealants; as optical coatings; as blown microfibers (BMF); as high refractive index optical materials; as barrier films; in microreplication; as low adhesion backsizes, (LABs) and release coatings.
Abstract:
The disclosed structured retroreflective article includes a symbol aligned with raised regions of the structured retroreflective article through an orientation mark which aligns the symbol to the raised region. In one embodiment, the retroreflective article comprises a substrate comprising a background surface and a raised region, a retroreflective film comprising a first symbol and an orientation mark, wherein the retroreflective film is applied to the substrate and the orientation mark aligns the first symbol to the raised region.
Abstract:
The disclosed aliphatic thermoplastic polyurethane composition is well suited for use in thin, flexible light directing articles to impart flexibility, toughness, or protection to the light directing articles that contain optically active elements. The disclosed aliphatic thermoplastic polyurethanes have improved thermostability at higher temperatures. Specifically, the disclosed aliphatic thermoplastic polyurethanes have a cross-over temperature greater than 110°C. In one embodiment, the cross-over temperature is greater than 130°C. In one embodiment, the cross-over temperature is less than 170°C and a Tg greater than 35C and less than 70C.
Abstract:
An article may include a biodata page defining a perimeter including an edge and a hinge layer attached to at least a portion of the biodata page. The hinge layer comprises a cross-linked polyurethane. In some examples, the hinge layer may include a cross-linked thermoset polyurethane.
Abstract:
Provided are methods of improving the wear resistance and aesthetic properties of dental articles, as well as dental articles having an abrasion resistant polymeric coating thereon.
Abstract:
A dental article includes an external layer formed of a self-supporting hardenable preformed material having a dental article shape defined by an external layer surface. The external layer defines an interior volume. An interior material is disposed within the interior volume. The interior material is different than the external hardenable preformed material and the interior material has a yield stress value of 100 dyn/cm2 or greater.
Abstract translation:牙科用品包括由具有由外层表面限定的牙科物品形状的自支撑可硬化预成型材料形成的外层。 外层定义内部体积。 内部材料设置在内部容积内。 内部材料与外部可硬化预成型材料不同,内部材料的屈服应力值为100dyn / cm 2以上。
Abstract:
A solid dental crown and methods of using the solid dental crown are disclosed. The solid dental crown includes, a self-supporting solid hardenable preformed dental crown having an external crown shape defined by an external crown surface. The external crown surface defines a crown volume that is substantially filled with a hardenable composition. The hardenable composition has sufficient malleability so that the solid preformed dental crown can be pressed onto a prepared tooth surface to form a recess in the solid preformed dental crown defined by a recess surface that is complimentary to the prepared tooth surface.
Abstract:
An article may include a biodata page defining a perimeter including an edge and a hinge layer attached to at least a portion of the biodata page. The hinge layer comprises a cross-linked polyurethane. In some examples, the hinge layer may include a cross-linked thermoset polyurethane.
Abstract:
Protected hardenable dental article comprising a hardenable dental article comprising a base and at least one outer surface extending from the base, wherein at least the base and the at least one outer surface of the hardenable dental article comprise a hardenable dental material; and a multi-layer polymeric film in contact with at least a portion of the at least one outer surface; wherein the multi-layer polymeric film comprises at least two dissimilar polymers in separate layers; kits including the protected hardenable dental article; and methods of making hardenable dental articles are disclosed.
Abstract:
A solid dental crown and methods of using the solid dental crown are disclosed. The solid dental crown includes, a self-supporting solid hardenable preformed dental crown having an external crown shape defined by an external crown surface. The external crown surface defines a crown volume that is substantially filled with a hardenable composition. The hardenable composition has sufficient malleability so that the solid preformed dental crown can be pressed onto a prepared tooth surface to form a recess in the solid preformed dental crown defined by a recess surface that is complimentary to the prepared tooth surface.