61 |
Lightweight foam concrete |
US15423242 |
2017-02-02 |
US09938199B1 |
2018-04-10 |
Mohammed Heshan Al-Mehthel; Mohammed Maslehuddin; Saleh H. Al-Idi; Mohammed Shameem |
A foam concrete has constituents that include a cement, a sand, a coarse aggregate having a density in a range of 1400-1600 kg/m3, a water, and a foam solution. The foam solution includes a foaming agent and a foaming water. The foam concrete has a compressive strength of at least 20 MPa, a thermal conductivity of less than 0.40 W/mK and a maximum dry weight of 2000 kg/m3. |
62 |
Silica-based nonflammable material for replacing asbestos and method for preparing same |
US13319510 |
2010-05-10 |
US08815758B2 |
2014-08-26 |
Se-Lin Lee; Jang Seop Oh |
The present application relates to a silica-based nonflammable material and to a method for preparing same. More particularly, the application relates to a silica-based nonflammable material which contains silica, limestone, and albite as main ingredients, which is obtained by a series of processes including grinding, melting, spraying, and molding, and which can replace asbestos, as well as to a method for preparing same. As functional building materials which are nonflammable even at high temperatures can be prepared using silica-based nonflammable materials consisting of silica-based minerals, and as only natural minerals may be used as main ingredients. The materials used as building materials may not be harmful to the human body and can replace asbestos that has been widely used as a conventional building material for thermal insulation, soundproofing, etc. |
63 |
Bonded body, bonding material composition, honeycomb segment bonded body, and honeycomb structure using the same |
US12235379 |
2008-09-22 |
US08088702B2 |
2012-01-03 |
Takahiro Tomita; Kenji Morimoto |
There is provided a bonding material composition capable of suppressing crack generation on an end face of a resultant honeycomb structure to a large extent by reducing anisotropy of Young's modulus after curing of the bonding material by the use of an isotropic filler without using inorganic fibers. The bonded body has two or more members unitarily bonded by means of a bonding material layer, and the relational expression of 0.5
|
64 |
Composition and method for making ceramic filters |
US11398021 |
2006-04-04 |
US07297299B2 |
2007-11-20 |
Kishor P. Gadkaree; Joseph F. Mach |
The channel-plugging of porous ceramic honeycombs to provide wall flow filter bodies therefrom is carried out using water-based cements comprising ceramic powders and soluble alkali metal silicates; the cements form durable plugs that are resistant to thermal and chemical damage upon drying and without firing. |
65 |
Admixture, extrudable hydraulic composition and method for the selection of admixture |
US10391008 |
2003-03-19 |
US07151173B2 |
2006-12-19 |
Yoshiaki Sasage; Tsutomu Yamakawa |
A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland cement, and 33 pbw of water, immediately followed by kneading at 20° C. and 20 rpm, a maximum torque for kneading is reached within 180 seconds from the addition. It is suitable as an admixture for extrudable hydraulic compositions. The hydraulic composition to which the inventive admixture is added can be kneaded within a brief time into a uniform mass which is smoothly extrudable. |
66 |
Composition and method for making ceramic filters |
US10716820 |
2003-11-19 |
US20050103232A1 |
2005-05-19 |
Kishor Gadkaree; Joseph Mach |
The channel-plugging of porous ceramic honeycombs to provide wall flow filter bodies therefrom is carried out using water-based cements comprising ceramic powders and soluble alkali metal silicates; the cements form durable plugs that are resistant to thermal and chemical damage upon drying and without firing. |
67 |
Calcium silicate insulating material containing alumina silica microspheres |
US10209807 |
2002-07-22 |
US06840994B2 |
2005-01-11 |
Thomas R. Krowl; Bryan K. Doerr; Michael W. Borski |
An asbestos free, calcium silicate insulating material suitable for use in the casting of molten non-ferrous metals, and suitable for use in applications where a fire resistant, heat insulating, electrical insulating, and corrosion resistant material is desirable. The calcium silicate insulating material is peoduced by combining lime, a siliceous component, alumina silica microspheres, wollastonite and organic fibrous material in the presence of water to form a slurry. The slurry is then placed under steam pressure, to react the lime, siliceous component and water, dried, and heat treated if necessary. |
68 |
Thermally and structurally stable noncombustible paper |
US09835069 |
2001-04-13 |
US06533897B2 |
2003-03-18 |
Roger C. Y. Wang; John Titus |
The present invention is drawn to a thermally and structurally stable, noncombustible paper, comprising a dominant amount of aluminosilicate refractory fibers and from 0.2% to 4% by weight of a polymeric binder. The refractory fibers can be substantially from 1 micron to 35 microns in width and from 1 cm to 15 cm in length, though other functional dimensions can be used. Optionally, from 0.1% to 5% by weight of viscose fibers and/or from 0.2% to 5% by weight of silicic acid aquagel can also be present. The papers of the present invention are mat-type papers that can be structurally stable at very high temperatures up to about 1400° C. or more. |
69 |
Refractory compositions |
US10204212 |
2002-10-01 |
US20030032701A1 |
2003-02-13 |
Michael
John
Gough |
An insulating refractory composition which is fiber free and comprises a lightweight refractory filler of tamped bulk density no greater than 0.4 g/cc, hollow refractory microspheres and a binder, the binder being water-based or curable at about 100null C. or below, the composition being curable by microwaves and having a cured density of less than 0.45 g/cc. |
70 |
Calcium silicate insulating material containing alumina silica microspheres |
US10209997 |
2002-07-22 |
US20030029361A1 |
2003-02-13 |
Thomas
R.
Krowl; Bryan
K.
Doerr; Michael
W.
Borski |
An asbestos free, calcium silicate insulating material suitable for use in the casting of molten non-ferrous metals, and suitable for use in applications where a fire resistant, heat insulating, electrical insulating, and corrosion resistant material is desirable. The calcium silicate insulating material is produced by combining lime, a siliceous component, alumina silica microspheres, wollastonite and organic fibrous material in the presence of water to form a slurry. The slurry is then placed under steam pressure, to react the lime, siliceous component and water, dried, and heat treated if necessary. |
71 |
Asbestos-free, asphalt roofing compositions especially adapted for cold
applications |
US588879 |
1996-01-19 |
US5573586A |
1996-11-12 |
Michael L. Yap; Raymond T. Hyer; Barton J. Malina |
Asbestos-free asphalt cold application roofing compositions are made available through the controlled utilization of fly ash. |
72 |
Mineral wool-free acoustical tile composition |
US182263 |
1994-01-14 |
US5395438A |
1995-03-07 |
Mirza A. Baig; Mark H. Englert; John C. Gaynor; Michael A. Kacner; Rajinder Singh |
A mineral wool-free acoustical tile composition and the acoustical tile made therefrom wherein an expanded perlite is used as a substitute for granulated mineral wool to provide porosity and good sound absorption properties. It is preferred that the composition and acoustical tile also contain an inorganic filler to provide texturability during the manufacturing process. In addition, the acoustical tile composition also contains a starch gel binder and a fiber reinforcing agent selected from the group consisting of cellulosic fibers, polymeric fibers and glass fibers. It has been found that the mineral wool-free acoustical tile compositions of this invention have acoustical properties comparable to the commercially available cast mineral wool tiles. In addition, the mineral wool-free compositions can be used to cast an acoustical tile using equipment and procedures currently used to produce cast mineral wool tiles. |
73 |
Reinforcement fibers and/or process fibers based on plant fibers, method
for their production, and their use |
US634166 |
1990-12-14 |
US5232779A |
1993-08-03 |
Jean L. Spehner |
The invention relates to reinforcing and/or process fibers based on plant fibers, obtainable thereby that plant fibers from which the wood components have been removed are treated with an aqueous solution of at least one metal compound selected among metal oxides, hydroxides, carbonates, sulfates, thiosulfates, sulfites, silicates or phosphates, subsequently washed and treated with an inorganic or organic binding agent or the fibers which have not been washed are neutralized with a mineral acid or that plant fibers from which the wood components have been removed are treated with an oxidation agent or that non-pretreated plant fibers are treated at 250.degree. to 350.degree. C. with the controlled addition of air so that carbonization of the fibers takes place. |
74 |
Gypsum building product |
US420362 |
1989-10-12 |
US5171366A |
1992-12-15 |
Turner W. Richards; Hubert C. Francis; George F. Fowler |
Compositions containing nonfibrous calcium sulfate in hemi-hydrate or anhydrous form and fibrous additives, including paper fibers preferably derived from waste newspaper, capable of being formed into an unfaced building material having superior mechanical properties and/or fire resistance. |
75 |
Fiber-reinforced cement composition |
US410481 |
1989-09-21 |
US5154955A |
1992-10-13 |
Pierre Delvaux; Normand Lesmerises |
Disclosed is a fiber-reinforced cement composition particularly useful to make pipes or sheets. This composition comprises up to 70% by weight of a fibrous-like synthetic forsterite obtained by calcination of chrysotile asbestos fibers at a temperature of from 650.degree. C. to 1450.degree. C., said synthetic forsterite having an MgO:SiO2 ratio lower than 1.1, a raw loose density of from 3 to 40 pcf, a thermal conductivity "k" factor of from 0.25 to 0.40 BTU. in/hr. .degree.F. ft.sup.2 and a fusion point of from 1600.degree. to 1700.degree. C. The composition also comprises a hydraulic binder, which is preferably Portland cement, and reinforcing fibers such as cellulose, synthetic fibers, glass wool, rock wool or their mixtures, in such an amount as to give sufficient strength to the composition to make it operative. |
76 |
Cement composition for extrusion |
US344600 |
1989-04-28 |
US5047086A |
1991-09-10 |
Kazuhisa Hayakawa; Tohru Chiba; Shin-Ichiro Nakamura |
A cement composition for extrusion which is produced by incorporating, into cement mortar, 3 to 15 weight % of crushed pulp fiber, 0.2 to 1 weight % of at least one member selected from an alkylcellulose and a hydroxyalkylalkyllcellulose, and a 2% water solution having a viscosity of 80,000 cps or more allows for reduced production costs by reducing the loads of the binder material using a pulp fiber without carcinogenicitic asbestos fiber. Furthermore, it allows for excellent extrudability and provides the moldings with workability such as nailing and sawing. |
77 |
Cold-molded cementitious composites reinforced with surface-modified
polyamide fibres and method of preparing same |
US363805 |
1989-06-09 |
US4974522A |
1990-12-04 |
David A. Holden; Said Dimitry |
A process was developed for modification of the surface of poly(p-phenylene terephthalamide) fibres so that these fibres function as a reinforcing agent in a cold-molded cementitious composite at levels below 1% by weight. The surface modification treatment involves treatment of the fibres with aqueous alkaline hydroxide between 20.degree. C. and 95.degree. C. for between 20 minutes and 7 hours. The modified fibre is used to replace asbestos in the cementitious composite and it has been found that this improves both the green strength and the flexural strength of the autoclaved material. |
78 |
Method for producing asbestos free machinable calcium silicate high
heat-resistant material |
US244072 |
1981-03-16 |
US4334931A |
1982-06-15 |
Hiroshi Asaumi; Kazuo Kubota; Hisanori Yokoo; Mitsuo Yamamoto |
The asbestos-free calcium silicate heat-resistant material composition, comprises:(A) 100 parts by weight of a mixture of lime and siliceous material having a CaO/SiO.sub.2 mole ratio of 0.6-1.2;(B) 20-170 parts by weight of xonotlite obtained by hydrothermal synthesis;(C) 15-150 parts by weight of fibrous wollastonite; and(D) water in an amount of 2-8 times as much as that of the total solid contents and is produced by a method which comprises the steps of:(i) molding a slurry of a uniform mixture of that recited above in (A) to (D).(ii) steam curing said molded body in an atmosphere of steam under a pressure of not less than 6 kg/cm.sup.2 to react the siliceous material with the lime; and(iii) heat treating said steam cured product to remove water therefrom at a temperature of not lower then 100.degree. C. under atmospheric pressure. |
79 |
Asbestos-free compression molding compositions for thermal and
electrical insulators |
US55627 |
1979-07-09 |
US4259196A |
1981-03-31 |
Harry R. Grossman |
Asbestos-free compression molding compositions suitable for thermal and electrical insulator products are disclosed. The compositions comprise mixtures of calcium magnesium ferro silicate particulate material in predominating amount, in combination with phosphoric acid. When combined into intimate admixture and molded in a heated die press, the compositions cure as a hard, strong, dense product having good heat and electrical resistance properties. |
80 |
Building board |
US738688 |
1976-11-04 |
US4132555A |
1979-01-02 |
Victor E. Barrable |
A composition suitable for the manufacture of shaped articles comprising (i) a water-settable inorganic binder which is one or more of a calcium silicate binder, Portland cement, aluminous cement, and blast furnace slag cement, and (ii) fibrous reinforcing material, wherein the fibrous reinforcing material is free from asbestoc fibres and includes organic fibres which do not melt below 140.degree. C. |