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| Number | Title | Issue Date |
| 7722520 | Asbestos containment composition The compound is a clay aqueous suspension made of at least one 2:1 layer phyllosilicate clay mineral, at least one 1:1 layer phyllosilicate clay mineral, and water that can be used to sequester asbestos, such as chrysotile, as well as dust and other fibrous particle... | 05/25/2010 |
| 7658703 | Method of preventing exposure of asbestos-containing material, method of treating asbestos-containing waste material, method of melt treating asbestos-containing waste material, asbestos-containing waste material treated article, and asbestos-containing melt treated article The present invention relates to a series of techniques for treating a waste material of an asbestos-containing material, from emergency treatment, dismantling, or transportation of an already constructed asbestos-containing material to a heating and melting treatme... | 02/09/2010 |
| 7132583 | Transformation method of products containing amiantus A method for transforming a waste product containing or completely formed of amiantus comprising subjecting the waste product to several working phases and adding of components such as calcined alumina, clay and material having a given porosity so to produce a final... | 11/07/2006 |
| 6929200 | Method for preventing asbestos from freeing airborne particles The method for preventing asbestos from freeing airborne particles comprises sequentially heating and the asbestos in the following surrounding temperatures values and maintaining the asbestos in these surrounding temperature values until the asbestos changes to the... | 08/16/2005 |
| 6921553 | Non-ionic foam composition for treating asbestos-containing materials and method of using same A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fluoride ions... | 07/26/2005 |
| 6692715 | Silica nanofibers and method for preparing them Disclosed are novel silica gel nanofibers having an outer diameter lower than 100 nm, a length of up to 1 cm, a specific surface area of from 600 to 1000 m2 /g and pore diameters of from 2 to 10 nm. Also disclosed are novel silica glass nanofib... | 02/17/2004 |
| 6589156 | Non-ionic foam composition for treating asbestos-containing materials and method of using same A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fl... | 07/08/2003 |
| 6391271 | Process for the treatment of waste containing asbestos A method for processing asbestos-containing waste from a waste generating site, wherein the waste is transferred from the site to a processing reactor without exposing the waste to an external environment, a basic reaction solution is fed into the reactor... | 05/21/2002 |
| 6160195 | Use of reagents to convert chrysotile and amosite asbestos used as insulation or protection for metal surfaces A composition for converting asbestos-containing material, covering metal pipes or other metal surfaces, to non-regulated, environmentally benign-materials, and inhibiting the corrosion of the metal pipes or other metal surfaces. The composition comprises... | 12/12/2000 |
| 5753032 | Composition and method to remove asbestos A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of phosphoric acid, and from about 0.1 to about 4% by weight of a sou... | 05/19/1998 |
| 5753035 | Composition and method to remove asbestos A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an inorganic acid, and from about 0.1 to about 4% by weight of a t... | 05/19/1998 |
| 5753034 | Composition and method to remove asbestos A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of a hexafluorosilicate salt, and free of or having only small amount... | 05/19/1998 |
| 5753033 | Composition and method to remove asbestos A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of a boron tetrafluoride salt, free of or having only small amounts o... | 05/19/1998 |
| 5753031 | Composition and method to remove asbestos A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an inorganic acid, and from about 0.1 to about 4% by weight of a h... | 05/19/1998 |
| 5743841 | Foam composition for treating asbestos-containing materials and method of using same A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fl... | 04/28/1998 |
| 5741358 | Corrosion inhibiting composition for treating asbestos containing materials A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an acid component, optionally a source of fluoride ions, and a cor... | 04/21/1998 |
| 5683484 | Method and apparatus for separating out gall during glass melting processes An electrically heated tank furnace is used to melt glass whereby a floating gall layer is formed on the melt, in particular during the vitrification of hazardous materials such as asbestos, fly ash, filter dust, whereby the tank of the furnace is fitted ... | 11/04/1997 |
| 5676750 | Process of treatment and environment-friendly utilization of asbestos-cement products The invention refers to a process of treatment and environment-friendly utilization of asbestos-cement products including a thermal process to transform the asbestos component. Inventively, this is achieved by a coarse reduction of the asbestos-cement pro... | 10/14/1997 |
| 5614452 | Method of converting asbestos cement into a harmless product Asbestos cement may be converted to a harmless product by melting at a melt temperature of 1400° to 1700° C. a blend of 50 to 85% by weight asbestos cement with 15 to 50% by weight of additives that include naturally occurring silicate material such tha... | 03/25/1997 |
| 5562585 | Process for disposal of asbestos or substances containing it In a process for disposal of asbestos or substances containing it, the initial material is converted by very fine grinding together with at least one material OH- -ions in water in aqueous suspension into a material having non-fibrous stable mi... | 10/08/1996 |
| 5516973 | Method for treating asbestos A method for rendering asbestos in an asbestos-containing material harmless comprises wetting the material with an aqueous solution containing about 1 to 25% by weight of an organic acid, such as trifluoroacetic acid and at least 1% by weight of a source ... | 05/14/1996 |
| 5466489 | Environmental non-toxic encasement systems for covering in-place asbestos and lead paint A method of coating a substrate, for example, to abate asbestos or lead paint by encasement, includes dispersing particulate solids in at least one liquid thermosetting resin, about 100% of said solids having a U.S. Standard mesh size of about 225 mesh or... | 11/14/1995 |
| 5445849 | Process for the manufacture of safe and easy-to-transport pellets of chrysotile asbestos Disclosed is a process for manufacturing of pellets of chrysotile asbestos fibers, wherein asbestos fibers containing from 5 to 20% by weight of water are pelletized to form wet pellets that are subsequently dried until their residual water content reache... | 08/29/1995 |
| 5439322 | Asbestos abatement Asbestos products installed in buildings are treated by application of an aqueous solution that coalesces anti/or encapsulates the asbestos fiber and dust content thereof. Textured asbestos containing materials are thereby rendered safe in an economical, ... | 08/08/1995 |
| 5264655 | Method and products for treating asbestos A method for rendering asbestos in an asbestos-containing material harmless comprises wetting the material with an aqueous solution containing about 1 to 25% by weight of an organic acid, such as trifluoroacetic acid and at least 1% by weight of a source ... | 11/23/1993 |
| 5258131 | Products for treating asbestos Treatment solutions for removing asbestos containing materials from substrates and for converting asbestos-containing materials to a non-asbestos material, which comprises an aqueous solution containing about 1 to 25% by weight of an acid and 1 to 10% by ... | 11/02/1993 |
| 5258562 | Method for treating asbestos A method for treating asbestos-containing material for removing such material from a substrate where it is installed and for destroying the asbestos in such asbestos-containing material, comprising wetting the material with an aqueous solution containing ... | 11/02/1993 |
| 5100453 | Method for recycling scrap mineral fibers A method and apparatus for recycling scrap mineral fibers (42) having an organic binder coating in a highly stirred glass melter (16) wherein the organic binder coating is decomposed by applying heat. Carbon from the organic binder coating is oxidized on ... | 03/31/1992 |
| 5096692 | Mineralogical conversion of asbestos waste There is provided a process for the mineralogical conversion of waste asbestos to a non-asbestos product. The waste asbestos is treated with a mineralizing agent and then heated for a period of time sufficient to convert the asbestos to the non-asbestos p... | 03/17/1992 |
| 5016314 | Asbestos-containing materials removal assembly An ACM removal assembly is disclosed, including: a nozzle for directing a pressurized fluid against ACM for dislodging the ACM; a fluid supply reservoir connected to the nozzle; a housing which supports the nozzle and capturingly receives spent fluid and ... | 05/21/1991 |
| 4678493 | Vitrification of asbestos waste Waste asbestos is converted into a glass by maintaining within an electrical glass melting furnace a body of molten glass at a temperature above the decomposition temperature of asbestos; supplying asbestos to the furnace; and withdrawing molten glass fro... | 07/07/1987 |
| 4541846 | Method of recovering environment-detrimental material In a method of in situ recovering and rendering harmless material detrimental to environment, for example asbestos and the like, the material is transported together with ambient air by means of vacuum from the place in situ to a space, in which the mater... | 09/17/1985 |
| 4468473 | Protoenstatite ceramic units and process for their preparation Protoenstatite ceramic units are prepared by compressing units of a mixture of 55 to 80 parts by weight of uncalcined demagnetized asbestos tailings with 22 to 44 parts by weight of a source of silica and from 0 to 17 parts by weight of fluxing agents and... | 08/28/1984 |
| 3933515 | Thermal shock resistant asbestos-cement compositions and their preparation A thermal shock resisting asbestos-cement composition is prepared by adding a finely divided porosity increasing additive as a partial or complete replacement for silica flour in an asbestos-cement composition containing asbestos fibers, portland cement, ... | 01/20/1976 |
