摘要:
Disclosed is a method of forming a structured sintered article including providing a mixture comprising a sinterable particulate material and a binder, the binder comprising, as a function of total resin content of the binder, at least 50% by weight of a thermoplastic binder material and at least 5% by weight of a radiation-curable binder material; shaping the mixture with a mold to form a structure; setting the structure by cooling the structure or by allowing the structure to cool; separating the structure from the mold; irradiating the structure so as to at least partially cure the radiation-curable binder material, and debinding and sintering the structure so as to form a structured sintered article. Shaping may include forming a structure having one or more open channels, and sintering may include sintering in together in contact with at least one additional structure so as to cover or enclose the channels.
摘要:
A method for cleaning batch material from an extrusion die includes introducing at least one gel composition into the die in a manner sufficient to purge the batch material from the die. After the batch material is purged from the die, the die can be treated further so that the gel composition is liquefied and flows from the die.
摘要:
The present invention provides optical fiber coating systems and coated optical fibers. According to one embodiment of the invention, a coated optical fiber includes an optical fiber having a core and a cladding; and a primary coating encapsulating the optical fiber, the primary coating having a Young's modulus of about 5 MPa or less, the primary coating being the cured reaction product of a primary curable composition having a gel time less than about 1.4 seconds at a UV intensity of 3.4 mW/cm2.
摘要翻译:本发明提供了光纤涂层系统和涂覆光纤。 根据本发明的一个实施例,涂覆光纤包括具有芯和包层的光纤; 以及包封所述光纤的初级涂层,所述初级涂层的杨氏模量为约5MPa或更低,所述初级涂层是在UV强度下具有凝胶时间小于约1.4秒的主要可固化组合物的固化反应产物 3.4mW / cm 2。
摘要:
Polymeric compositions having a polymeric component and an inorganic filler which undergoes a crystal (phase) inversion within the operating temperature range of the composition are provided. The present invention relates to a method for reducing the water sensitivity of particles of a crystallized phosphate glass. The particles are composed of P.sub.2 O.sub.5 and one or more cations selected from the group consisting of magnesium, cobalt, arsenic, zinc, iron, aluminum, and zirconium. The method includes nitriding the particles.
摘要:
A method of encapsulating an optical component, the component comprising at least partially uncoated organic material, the method comprising: placing molten metal around the optical component, and solidifying the metal. The invention includes encapsulating a segment or element of an optical component, such as, for example, an optical junction or a surface. An encapsulated optical component and optical components having sealed or encapsulated elements are also provided.
摘要:
A heat release decal, for decorating a shaped surface of an article, is disclosed. The decal includes a stretchable web, a meltable release layer on the web and a design layer thereover. When heated, the release layer melts, thereby releasing the design layer therefrom. When the decal is heated to above the melt point of the release layer, the design layer becomes tacky. The design layer sticks to the article upon intimate contact. The web, the design layer and release layer are formed of materials which do not migrate into each other upon formation of the decal, or upon application to the article. Each are stretchable to allow the decal to conform to the shape of the article to be decorated.
摘要:
A ceramic precursor batch composition comprising inorganic ceramic-forming ingredients, a hydrophobically modified cellulose ether binder having a molecular weight less than or equal to about 300,000 g/mole and an aqueous solvent is provided. The ceramic precursor batch composition has a ratio of binder to aqueous solvent of less than about 0.32. The ceramic precursor batch composition may be used to increase the rate of extrusion of the composition. A method for increasing a rate of extrusion of a ceramic precursor batch composition is also disclosed.
摘要:
The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the sane; Z is Se, Te, or a mixture of Se+Te; and Y and Z are present in amounts (in atomic/element percent) in the range of Y=15-70% and Z=30-85%. The chalcogenide glasses of the invention have a 10,000 poise temperature of 400° C. and are resistant to crystallization when processed at high shear rates at their 10,000 poise temperature. The glasses can be used to make, among other items, molded telecommunication elements, lenses and infrared sensing devices.
摘要:
There are disclosed thermoplastic inks in the nature of high viscosity, tacky pastes which exhibit high cohesive strength, high pressure sensitivity at low temperatures, high thermal stability and low affinity for silicone surfaces. These properties make the inks particularly useful in those printing processes involving multiple elastomeric transfer members, in particular, those processes wherein silicone transfer members print successive colors onto a silicone collector which in turn transfers the multicolored print in a single step to ware or decal paper. The ink formulations consist essentially, in weight percent, of:(a) 50-80% of a pigmented, vitreous, inorganic flux;(b) 2-20% of a selected organic polymer;(c) 5-25% of a selected plasticizer;(d) 2-20% of a selected amorphous tackifying resin; and optionally,(e) up to 20% of an organic wax.
摘要:
Disclosed are compositions for applying to honeycomb bodies. The compositions can be used as plugging mixtures for forming a ceramic wall flow filter. Alternatively, the compositions can be used to form skin coatings on exterior portions of a honeycomb body. The disclosed compositions include an inorganic powder batch composition, an organic binder, a liquid vehicle, and a rheology modifier. The compositions exhibit improved rheological properties, including an increased yield strength and reduced viscosity under shear, which, among various embodiments, can enable the manufacture of sintered phase end plugs having reduced levels of dimple and pinhole formations in the final dried and fired end plugs as well as end plugs having relatively uniform and desired depths. Also disclosed are methods for forming end plugged ceramic wall flow filters from the plugging mixtures disclosed herein.