Abstract:
Apparatuses and methods for monitoring curing of photocurable material are disclosed. The methods generally include directing an ultraviolet cure light into a photocurable material, wherein the ultraviolet cure light causes the photocurable material to cure; directing a probe light into the photocurable material through an optical fiber during the cure; collecting a back reflection signal from the photocurable material with the optical fiber; and determining a refractive index change of the photocurable material during the cure.
Abstract:
A radiation curable composition is disclosed that includes a curable cross-linker essentially free of urethane and urea functional groups, a curable diluent, and a non-radiation curable component comprising (thio)urethane and/or urea groups. Coated optical fibers having a primary coating formed from this radiation curable composition, as well as optical fiber ribbons that contain the coated optical fibers are disclosed. Methods of making the optical fibers and ribbons are also disclosed.
Abstract:
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.
Abstract:
A cell culture article comprises virgin polystyrene disposed over at least a portion of a surface of an article main body. The article main body may be formed from polyethylene terephthalate (PET) such as reground or recycled polyethylene terephthalate. Methods of making such a cell culture article include applying a composition to a surface of an article main body, where the composition comprises virgin polystyrene having a thickness of 1 to 500 microns and the article main body is formed from glass, ceramic, metal or polymer.
Abstract:
A cell culture article comprises virgin polystyrene disposed over at least a portion of a surface of an article main body. The article main body may be formed from polyethylene terephthalate (PET) such as reground or recycled polyethylene terephthalate. Methods of making such a cell culture article include applying a composition to a surface of an article main body, where the composition comprises virgin polystyrene having a thickness of 1 to 500 microns and the article main body is formed from glass, ceramic, metal or polymer.
Abstract:
A coating composition containing a radiation-curable component, a photoinitiator, and a UV absorber is described. The coating composition may be applied to an optical fiber and cured to form a coating. The UV absorber provides a protective function by inhibiting unintended curing of the coating that may occur upon exposure of the fiber to UV light during fiber processing. The spectral overlap of the photoinitiator and UV absorber is minimized to permit efficient photoinitiation of the curing reaction over one or more wavelengths. Photoinitiation may be excited by an LED source with a peak emission wavelength in the range from 360 nm-410 nm.
Abstract:
Fiber coatings with low Young's modulus, high tear strength, and/or high critical stress are realized with coating compositions that include an oligomeric material formed from an isocyanate, a hydroxy acrylate compound and a polyol. The oligomeric material includes a polyether urethane acrylate and a di-adduct compound. The reaction mixture used to form the oligomeric material includes a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where when p is 2, n is in the range from 3.0 to 5.0 and m is in the range from 1.50n-3 to 2.50n-5. Control of the n:m:p ratio leads to compositions that, when cured, provide coatings and cured products having high critical stress, high tear strength, and a high ratio of tear strength to Young's modulus.
Abstract:
A radiation curable composition is disclosed that includes a curable cross-linker essentially free of urethane and urea functional groups, a curable diluent, and a non-radiation curable component comprising (thio)urethane and/or urea groups. Coated optical fibers having a primary coating formed from this radiation curable composition, as well as optical fiber ribbons that contain the coated optical fibers are disclosed. Methods of making the optical fibers and ribbons are also disclosed.
Abstract:
Described herein are laminate structures with enhanced sound-damping properties and mechanical properties. The laminates are composed of an interlayer structure disposed between a first glass substrate and a second glass substrate, wherein the interlayer is composed of a polymer layer designed such that sound attenuation or damping by the laminate is optimized. The laminates described herein may be used in vehicles or architectural panels. In one or more embodiments, the laminate may be disposed in an opening of a vehicle body. Where the vehicle body is an automobile, the laminate could be used as a windshield, a side window, sunroof or rear windshield. The body of some embodiments may include railcar body, or an airplane body. In other embodiments, the laminate may be used in architectural panels, which may include a window, an interior wall panel, a modular furniture panel, a backsplash, a cabinet panel, or an appliance panel.
Abstract:
Laminated glass-based articles are provided. The glass-based articles include at least a first glass-based layer, a second glass-based layer, and a polymer layer disposed between the first and second glass-based layers. The first glass-based layer includes a compressive stress. A difference between the coefficient of thermal of expansion of the first glass-based layer and the coefficient of thermal of expansion of the second glass-based layer is greater than or equal to 0.4 ppm/° C. Methods of producing the laminated glass-based articles are also provided.