Ernest P. Guter - Newark OH, US Russell M. Potter - Hebron OH, US Michael E. Evans - Granville OH, US
Assignee:
Owens Corning Intellectual Capital, LLC - DE
International Classification:
C03C 13/00 C03C 13/06
US Classification:
501 36, 501 35, 428171
Abstract:
The present invention relates to fiberglass loose-fill insulation that is insensitive to the content of boron in the composition of the glass. It has been discovered that the level of boron in the glass used for the manufacture of loose-fill glass wool can be substantially reduced without degrading thermal performance. The lowered amount of boron provides for a lower cost batch composition and increased furnace life. The glass composition of the present invention includes a substantially reduced content of boron and preferably an increased amount of sodium dioxide. The primary phase of these glass compositions is typically devitrite (NaCaSiO). The glass of the present invention provides a glass fiber blowing wool that does not require an increase in pack density to compensate for the reduced boron content while achieving the similar thermal conductivity. The glass of the present invention is also suitable for use in acoustic insulation.
Method Of Providing Flexible Duct Having Different Insulative Values
Methods of providing flexible duct are provided. The methods include the steps of providing an inner core, the inner core having a cylindrical shape and an outer surface, providing a layer of insulation having a constant uncompressed thickness, fiber diameter and density, wrapping the layer of insulation around the outer surface of the inner core thereby forming a layered assembly, selecting an outer jacket from a set of outer jackets of different diameters, the selected outer jacket configured to compress the layer of insulation to a desired thickness and inserting the layered assembly into the selected outer jacket thereby forming flexible duct. The thickness of the compressed layer of insulation provides a desired insulative value. The outer jackets included in the set of outer jackets are configured to compress the layer of insulation into a plurality of flexible duct having different insulative values from each other.
Microorganism Resistant Shingle And Method Of Making Same
David Aschenbeck - Newark OH, US Russell Potter - Hebron OH, US
International Classification:
E04D001/00
US Classification:
052518000, 052741100
Abstract:
A method of manufacturing a roofing shingle includes coating a continuously supplied shingle mat with roofing asphalt to make an asphalt coated sheet. A first portion of granules is applied onto the asphalt coated sheet, wherein the first portion contains substantially no anti-microorganism granules. A second portion of granules is applied over the first portion of granules, wherein the second portion of granules comprises granules and anti-microorganism granules. The granules and anti-microorganism granules which are not adhered to the asphalt coated sheet are the removed.
Phosphate Coating For Glass Wool Insulation For Use As Flexible Duct Media
Patrick F. Aubourg - Granville OH, US Russell M. Potter - Hebron OH, US
International Classification:
F16L 59/147 F16L 59/153 F16L 9/14
US Classification:
4282921, 138145, 138149, 138146, 138128
Abstract:
A rotary fibrous insulation product for use as flexible duct media is provided. The fibrous insulation product includes a fibrous insulation pack that is at least partially coated on one major surface with a phosphorus coating layer. The phosphorus coating layer may be formed of one or more phosphorus-containing compound that forms a protective coating over the fibrous pack when sufficient heat is applied. In exemplary embodiments, mono-aluminum phosphate is applied to a major surface of the fibrous pack. The phosphorus-containing compound may be applied to the surface of the fibrous pack in an amount from about 3.0 g P/mto about 10.0 g P/m. In an alternate embodiment, the phosphorus-containing compound is distributed throughout the insulation pack. A flexible insulated duct formed from the fibrous insulation product is also provided. The flexible insulated duct meets the UL-181 Standard flame penetration test without the need for a scrim layer.
High Thermal Resistivity Insulation Material With Opacifier Uniformly Distributed Thoughout
A fibrous insulation product with improved thermal resistance and method of making it are provided. A plurality of base fibers (e.g. glass) are formed into an insulation product, which may be bindered or unbonded. At least one infrared opacifying agent, such as soot, carbon black or graphite, is applied to the fibrous insulation product such that the base fibers are substantially uniformly coated with opacifying agent. The opacifying agent may be applied, for example, from a fluid suspension or by pulling the fiber through a sooty flame. When opacifying agent applied via a suspension and a binder is desired, it is preferable to avoid binder dispersions that can dislocate the opacifying agent. Alternative binder applications may include co-mingling of base fibers with binder fibers, or other physical or mechanical distributions.
Systems And Methods For Manufacturing Fibers With Enhanced Thermal Performance
In a method of producing fibers having property enhancing inclusions, a molten material is supplied to a fiber forming apparatus. A controlled amount of particulate is added to the molten material. The molten material with the added particulate is formed into fibers. An undissolved portion of the added particulate forms inclusions in the fibers, the inclusions having an absorption index in a 2-7 μm wavelength region that is greater than a corresponding absorption index of the material.
Glass Compositions For Producing Dual-Glass Fibers
Owens Corning Fiberglas Technology, Inc. - Summit IL
International Classification:
C03C 1300 C03C 3085 B32B 700
US Classification:
501 35
Abstract:
Compositions for producing irregularly-shaped dual-glass fibers include a first glass composition and a second glass composition, the first and second glass compositions having nonidentical coefficients of thermal expansion, the difference between the coefficients of thermal expansion being greater than about 2. 0 ppm/. degree. C.
Irregularly Shaped Glass Fibers And Insulation Therefrom
Charles F. Rapp - Newark OH Russell M. Potter - Hebron OH
Assignee:
Owens-Corning Fiberglas Technology, Inc. - Summit IL
International Classification:
C03C 1300 C03C 3085
US Classification:
501 35
Abstract:
Irregularly shaped glass fibers and insulation therefrom comprise two different glasses having differing coefficients of thermal expansion. These glasses also have physical properties which allow current processes to fabricate them into insulation. The glasses also meet German recommendations regarding a KI value of 40 or above.
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