Class 162/171 - Bitumen

Subclass of Class 162 - Paper making and fiber liberation
Definition: Processes and products which include a bituminous material
No. of patents: 20
Last issue date: 11/15/2011

Number	Title	Issue Date
8057638	Wet-end manufacturing process for bitumen-impregnated fiberboard A process for manufacturing fiberboard by preparing a fiber slurry mixture including containing cellulose fibers and water then atomizing a liquid bituminous material, such as asphalt. The liquid bituminous material is atomized by mixing it with a pressurized gas, s...	11/15/2011
8038845	Wet-end manufacturing process for bitumen-impregnated fiberboard A process for manufacturing fiberboard by preparing a fiber slurry mixture including containing cellulose fibers and water then atomizing a liquid bituminous material, such as asphalt. The liquid bituminous material is atomized by mixing it with a pressurized gas, s...	10/18/2011
7815772	Wet-end manufacturing process for bitumen-impregnated fiberboard A process for manufacturing fiberboard by preparing a fiber slurry mixture including containing cellulose fibers and water then atomizing a liquid bituminous material, such as asphalt. The liquid bituminous material is atomized by mixing it with a pressurized gas, s...	10/19/2010
7354503	Fire retardant composite panel product and a method and system for fabricating same In one embodiment, a fire retardant composite panel material is fabricated. A water-based slurry comprising partially soluble boric acid and borax pentahydrate solids is created. An adhesive used in the composite panel fabrication process is added to fibers. The wat...	04/08/2008
6737443	Lignin based colloidal compositions Methods for making the stable dispersion of lignin components of black liquor in bitumen. Representative methods comprising converting an aqueous colloidal dispersion of lignin in spent pulping liquor to an anhydrous colloidal dispersion of lignin in a lubricating o...	05/18/2004
6488811	Multicomponent mats of glass fibers and natural fibers and their method of manufacture The invention relates to a method of forming a multicomponent mat, the multicomponent mat which is formed from glass fibers and natural fibers and methods of making a multicomponent mat. Initially in the method of forming a multicomponent mat, a natural f...	12/03/2002
6149831	Perlite-based insulation board An insulation board suitable for use as a roof insulating board has a density between about 8 and about 15 pounds per cubic foot; a MOR/density ratio of at least 10.5 to 1 and includes, by dry weight, between about 45% and about 76% expanded perlite; betw...	11/21/2000
6068804	Process for making expansion joint material A process of producing an asphalt-impregnated fiberboard comprises the steps of forming an aqueous slurry of a fibrous material and asphalt, the solids content of the slurry being less than about 8 weight percent, mixing the slurry to uniformly distribute...	05/30/2000
5749954	Perlite-based insulation board A perlite-based insulation board includes, by dry weight, between about 50% and about 76% expanded perlite; between about 15% and about 45% fibers; between about 1% and about 5% starch; between about 2% and about 9% bituminous material; and about 0% to ab...	05/12/1998
5066984	Decurler A device is disposed in the path of paper sheets leaving a printing unit or processor such as an office copier or non-impact printer and has an arcuate concave guide and a roll spaced from the guide to form a sheet path which is curved or arched oppositel...	11/19/1991
4759977	Flexible carbon material A flexible carbon material is produced by carbonizing a composite material comprising carbon fibers having an average length of 6 to 50 mm and a binding agent. Carbon lumps are derived from the binding agent and are dispersed in a matrix of the carbon fib...	07/26/1988
4587070	Method for manufacture of waterproof fibrous plate This invention provides a method for the manufacture of a fibrous plate rich in water resistance, which comprises the steps of uniformly mixing and dispersing fibrous raw material and finely divided bituminous substance in water, molding the resultant aqu...	05/06/1986
4543158	Sheet type felt Sheet type felt material comprising 5-20 wt % glass fibers, 40-80 wt % cellulose fibers, 5-25 % binder and 3-20 wt % asphalt. The felt is made on conventional felt making equipment and may be used as siding or roofing underlayment or as facer for foam ins...	09/24/1985
4472243	Sheet type roofing Sheet type felt material and sheet type roofing material such as shingles and rolls made therefrom. The felt comprises 10-60 wt % glass fibers of varying lengths, 15-80 wt % cellulosic fiber and 5-25% binder. The roofing material is felt of the invention ...	09/18/1984
4284470	High-strength roofing products using novel glass fiber mats High strength roofing products using a novel glass fiber mat are described herein. The roofing products include shingles and built up roofing membranes and systems....	08/18/1981
4126512	Perlitic insulating board A thermal insulating board product, comprising expanded perlite, fibers, and bituminous material, also includes a relatively small amount of starch binder....	11/21/1978
4118273	Manufacture of perlite insulating board on a cylinder machine Perlite insulation board is produced on a rotary vacuum forming machine utilizing an aqueous slurry containing ultrafine perlite particles. The fine perlite particles slow down the rate of stock deposition on the facing wire of the rotary vacuum former, a...	10/03/1978
3988199	Perlite insulation board and method of making the same A perlite insulation board is disclosed herein and includes, as conventional ingredients, expanded perlite, organic fiber and binder, the perlite, being the largest single ingredient, by dry weight, in the board. The insulation board also includes gypsum ...	10/26/1976
3985610	Water-resistant asbestos-cement An improved low density asbestos-cement product and the process whereby it is produced wherein an asphalt emulsion is combined with the formulation from which the product is made, which asphalt emulsion has an asphalt phase which asphalt has a softening p...	10/12/1976
3943269	Paper felt and process for making the same The process for producing roofing felt which is softer, more flexible and more fire-resistant than such felt commonly produced by the prior art and which consists of permeating the felt stock with a treating fluid comprising a mixture of oil and soda lade...	03/09/1976

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Class 162/171 - Bitumen