Facing material with controlled porosity for construction boards
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-027/04
B32B-027/12
B32B-005/02
B32B-015/14
출원번호
US-0280836
(2005-11-16)
등록번호
US-7300892
(2007-11-27)
발명자
/ 주소
Porter,John Frederick
출원인 / 주소
Saint Gobain Technical Fabrics Canada, Ltd.
대리인 / 주소
Duane Morris LLP
인용정보
피인용 횟수 :
14인용 특허 :
154
초록▼
This invention provides facing materials for cementitious boards such as those including Portland cement or gypsum cores. The preferred facing material includes, in a first embodiment, a facing layer having an areal weight of about 300 grams/M2, and an air permeability rating of no greater than abou
This invention provides facing materials for cementitious boards such as those including Portland cement or gypsum cores. The preferred facing material includes, in a first embodiment, a facing layer having an areal weight of about 300 grams/M2, and an air permeability rating of no greater than about 300 CFM/ft2 (FG 436-910 test method). The facing layer reduces the penetration of a slurry of cementitious material during the manufacture of a cementitious board, while permitting the water vapor from the slurry to pass therethrough. The facing materials of this invention can be designed to substantially eliminate the fouling of rolls used in continuous processing of such boards without the use, or with greatly reduced use, of costly viscosity control agents in the slurry. In addition, further embodiments of this invention can include binders, coatings or saturants which are designed to decrease pore size, increase or decrease the contact angle of liquids, or promote greater adhesion to cementitious cores, greater adhesion to other layers in the facing material, or greater adhesion or affinity to various types of adhesive compositions used to join cementitious boards to insulation and exterior finishing systems (EIS or EIFS).
대표청구항▼
What is claimed is: 1. A cementitious board for building construction, comprising: a cementitious material layer between two facing layers; the cementitious material layer being formed by solidification of a slurry comprising, cementitious material and water; at least one of the two facing layers c
What is claimed is: 1. A cementitious board for building construction, comprising: a cementitious material layer between two facing layers; the cementitious material layer being formed by solidification of a slurry comprising, cementitious material and water; at least one of the two facing layers comprising, an inner layer having reinforcing fibers, and a porous facing layer having a slurry facing side and an exterior side; a water repellant material on at least the exterior side of the porous facing layer providing the exterior side with water repellency to repel rain and water from the cementitious board, said water repellant material repelling said slurry from penetration through the exterior side of the facing material to prevent slurry contamination on the exterior side of the facing material; the cementitious material layer penetrating the inner layer and the reinforcing fibers; the cementitious material layer being in contact with the slurry facing side of the porous facing layer; a slurry wetting agent on the slurry facing side of the porous facing layer for wetting by the slurry; and pores of the porous facing layer being permeable to evaporated water from the slurry. 2. The cementitious board as in claim 1, further comprising: a porosity reducing coating or saturant on the exterior side of the porous facing layer, which reduces porosity of the exterior side to resist slurry penetration, while the pores of the porous facing layer are permeable to the evaporated water from the slurry. 3. The cementitious board as in claim 1, further comprising: said water repellant material comprising hydrophobic material over at least the exterior side of the porous facing layer. 4. The cementitious board as in claim 3, further comprising: a porosity reducing coating or saturant on the exterior side of the porous facing layer, which reduces porosity of the exterior side to resist slurry penetration while the pores of the porous facing layer are permeable to the evaporated water from the slurry. 5. The cementitious board of claim 1, wherein said one of the two facing layers comprises a scrim, knit, needled or woven fabric or cloth, a random oriented, non-woven mat, or combination thereof. 6. The cementitious board of claim 1 wherein said slurry wetting agent comprises a resinous saturant or coating for wetting by the slurry to fill voids in the porous facing layer, to increase adherence to the cementitious material, alters to alter the wetting angle of the slurry, or a combination thereof. 7. The cementitious board of claim 1, wherein said one of the two facing layers comprises, a dense, light weight non-woven or needled layer having glass fibers, the glass fibers having an average diameter of less than 16 microns, bonded to a glass scrim. 8. The cementitious board of claim 1, wherein said one of the two facing layers comprises, glass fibers bonded together with a resinous binder composition having a hydrophilic affinity or adhesive affinity for said cementitious material when wetted by said slurry. 9. The cementitious board of claim 1, wherein said one of the two facing layers comprises, a permeability having an air permeability rating of no greater than about 300 CFM/ft2, substantially preventing penetration of said slurry having a viscosity of less than 5,000 cp at 70째 F., and permitting passage therethrough of water vapor emitted from said slurry. 10. The cementitious board of claim 1, wherein the porous facing layer further comprises; glass fibers having an average diameter of less than about 16 microns, and having an air permeability rating of less than about 300 CFM/ft2 (FG436-910 test method) to substantially prevent penetration of said slurry, and permit passage therethrough of water vapor emitted from said slurry. 11. The cementitious board of claim 1, wherein the porous facing layer further comprises; a random oriented glass fiber-containing mat having an areal weight of about 30-150 grams/m2. 12. The cementitious board of claim 1, wherein the porous facing layer resists penetration of said slurry without a substantial viscosity control additive in said slurry. 13. The cementitious board of claim 1, wherein the porous facing layer further comprises; a scrim and a non-woven mat. 14. The cementitious board of claim 13, wherein said scrim and said non-woven mat are hydrophilic, and are bound by a non-hydrophobic resinous binder. 15. The cementitious board of claim 13, wherein, either said non-woven mat, or said scrim, or both, further comprise; a fire retardant, a water repellant, or both, in the form of a resinous saturant or coating. 16. The cemtentitious board of claim 5, wherein said one of the two facing layers comprises a non-woven mat and wherein said non-woven mat further comprises; a fire retardant, water repellent, or both, in the form of a resinous saturant or coating. 17. The cementitious board of claim 1, wherein the porous facing layer comprises, filaments located in both a machine and cross-machine direction. 18. The cementitious board of claim 1, wherein said cementitious material comprises gypsum for a gypsum wall board.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (154)
Fyles Kenneth M. (Wigan GB2) Shorrock Peter (Wigan GB2), Alkali resistant glass fibres for cement reinforcement.
Roncato Giordano (Aix les Bains FRX) Fedorowsky Robert (Aix les Bains FRX) Boissonnat Philippe (Barby FRX) Loubinoux Dominique (Chambery FRX), Apparatus for manufacturing a composite strand formed of reinforcing fibers and of organic thermoplastic material.
Roncato Giordano (Aix Les Bains FRX) Fedorowsky Robert (Aix Les Bains FRX) Boissonnat Philippe (Barby FRX) Loubinoux Dominique (Chambery FRX), Apparatus for manufacturing a glass and organic composite strand, including a blowing device.
Bogner Ben R. (Wheaton IL) Bozer Keith B. (Richmond IL) Dunlop William R. (Rolling Meadows IL) Leitheiser Robert H. (Crystal Lake IL), Composite construction materials with improved fire resistance.
Sabee Reinhardt N. (Appleton WI), Composite fabrics comprising continuous filaments locked in place by intermingled melt blown fibers and methods and appa.
El Bouhnini Larbi (Hanover Park IL) Fitzpatrick Thomas J. (Libertyville IL) Harwick Donald M. (Pittsburgh PA) Hoffman Robert M. (Palos Heights IL) Knoll Wayne M. (Wheaton IL), Fiber reinforced composite structural laminate composed of two layers tied to one another by embedded fibers bridging bo.
Hannes ; George John ; Rohweder ; Theodore Richard ; Dreikorn ; Hans W endell ; Shepherd ; Philip Bickford, Fibrous mat especially suitable for roofing products.
Lehnert Charles W. (Stone Mountain GA) Randall Brian G. (Stone Mountain GA), Fibrous mat-faced gypsum board in exterior and interior finishing systems for buildings.
Garvey Chad E. (Ball Ground GA) Hutchings David A. (Tucker GA) McVay Ted McC. (Stone Mountain GA) Pennock Richard F. (Decatur GA), Gypsum microfiber sheet material.
Cho Yong Jun,KRX ; Chung Sam Tae,KRX ; Cho Se Hyun,KRX ; Jeong Il Soo,KRX, Manufacturing method of reinforced fiber sheet useful for repairing/reinforced concrete structure.
Swedenberg Clyde J. (3706 E. North St. Ext. Greenville SC 29607) Fain Charles C. (Bayshore Estates Clemson SC 29631) Rutledge William W. (33 W. Tallulah Ave. Greenville SC 29601), Method and composition for applying a covering to a wall or like substrate.
Gay William M. (Meridian MS) Blanpied Robert H. (Meridian MS) Bush Philip W. (Laurel MS) Donald Richard L. (Meridian MS) Williams James L. (Meridian MS) Williams James H. (Little Rock MS), Method and composition for coating mat and articles produced therewith.
Baehr Donald O. (Arlington Heights IL) Izard David G. (Hoffman Estates IL), Method for the production of glass fiber-reinforced gypsum sheets and gypsum board formed therefrom.
Loubinoux Dominique (Chambery FRX) Roncato Giordano (Aix Les Bains FRX), Method of and an apparatus for forming a composite thread including stretching of thermoplastic filaments.
Sellers Dwight G. (Fort Dodge IA) Altman Franklin A. (Hortense GA) Richards Turner W. (Conyers GA), Method of manufacturing a water-resistant gypsum composition.
Schfer Karl K. (Gengenbach DEX) Melzer Gerhard M. (Lautertal DEX) Scriba Jrg (Ortenberg TX DEX) Bhagwat Suda G. (Double Oak TX) Eisses James (Coeus D\Alene ID), Method of manufacturing fiber gypsum board.
Porter John F. (St. Catharines CAX) Kittson Mark O. (Niagara Falls CAX) Tucker Mark (Waubaushene CAX) Ferris Larry (Midland CAX) LePage Steve (Midland CAX), Open grid fabric for reinforcing wall systems, wall segment product and methods of making same.
Porter John F.,CAX ; Kittson Mark O.,CAX ; Tucker Mark,CAX ; Ferris Larry,CAX ; LePage Steve,CAX, Open grid fabric for reinforcing wall systems, wall segment product and methods of making same.
Bijen Jan M. J. M. (Munstergeleen NLX) Jansen Johann J. (Nieuwstadt NLX), Process and apparatus for the manufacture of fiber-reinforced hydraulically bound articles such as cementitious articles.
Roncato Giordano (Aix-Les-Bains FRX) Loubinoux Dominique (Chambry FRX) Boissonnat Philippe (Barby FRX), Process and device for making up a composite thread.
Roncato Giordano (Aix les Bains FRX) Federowsky Robert (Aix les Bains FRX), Process and device for producing a yarn or ribbon formed from reinforcement fibers and a thermoplastic organic material.
Boissonnat Philippe (Barby FRX) Loubinoux Dominique (La Terrasse FRX) Roy Louis (Chambery FRX), Process for the manufacture of a composite thread and composite products obtained from said thread.
Kotulla Bernhard (Cologne DEX) Haas Hans (Hoffnungsthal DEX) Weiser Martin (Cologne DEX) Frster Rolf (Cologne DEX) Preis Lothar (Cologne DEX) Schmidt Rudolf (Burscheid DEX), Reinforcement of armored earth work constructions.
Shoesmith Roy (Midland CAX) Kittson Mark O. (Midland CAX), Reinforcements for asphaltic paving, processes for making such reinforcements, and reinforced pavings.
O\Connor Terry J. (St. Catharines CAX) Cooper Ian G. (St. Catharines CAX), Reinforcing composite for roofing membranes and process for making such composites.
Jaecklin Felix P. (Ennetbaden ; CH 5400 CHX), Structures and process for producing same, as well as associated elements and sets of construction elements.
Scotchmer Stephen R. (St. Catharines CA) MacGregor Robert D. (Hazeldean CA), Substantially closed fabric made by compressive redistribution of the filaments of at least some yarns of an open mesh f.
Williams John (‘Merileys’ ; Fawkham Ave. ; New Barn Longfield ; Kent EN), Surfacing composition containing aqueous resin emulsion and calcium sulfate hemihydrate plaster.
Chase Peter D. (Houlton ME) George Lloyd M. (Port Hawkesbury CAX) McInnis John D. (Port Hawkesbury CAX) Krawiec Thomas P. (Nova Scotia CAX), Thin, sealant-coated, fiber-reinforced gypsum panel.
Gaa Peter C. (Pittsburgh PA) Hedden Jerry C. (Shelby NC) Motsinger Donald L. (Forest City NC) Watkins H. Kenyon (Pittsburgh PA), Treated glass fibers and aqueous dispersion and nonwoven mat of the glass fibers.
Gaa Peter C. (Pittsburgh PA) Hedden Jerry C. (Shelby NC) Raghupathi Narasimhan (Murrysville PA), Treated glass fibers and aqueous dispersion and nonwoven mat of the glass fibers.
Lehnert Charles W. (Stone Mountain GA) Randall Brian G. (Stone Mountain GA), Use of fibrous mat-faced gypsum board in exterior finishing systems for buildings.
Lehnert Charles W. (Fort Myers FL) Randall Brian G. (Stone Mountain GA), Use of fibrous mat-faced gypsum board in exterior finishing systems for buildings and shaft wall assemblies.
Lehnert Charles W. (Stone Mountain GA) Randall Brian G. (Stone Mountain GA) Fowler ; Jr. George F. (Norcross GA) Hinkel Ray W. (Stone Mountain GA), Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board.
Willibey Gary L. (Dunwoody GA) Hawkins John W. (Stone Mountain GA) Harp Russell P. (Lithia Springs GA) Wilkinson David M. (Stone Mountain GA), Woven geotextile grid.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.