High temperature glass fibers suitable for use as textile and reinforcements are specifically adapted to be used in high temperature applications such as sound absorbing material in engine exhaust mufflers. The glass fibers have compositions of up to 72 Mole % SiO 2 , 20 mole percent Al 2 O 3 , 2
High temperature glass fibers suitable for use as textile and reinforcements are specifically adapted to be used in high temperature applications such as sound absorbing material in engine exhaust mufflers. The glass fibers have compositions of up to 72 Mole % SiO 2 , 20 mole percent Al 2 O 3 , 22 mole percent alkaline earth oxides and may include small amounts of alkali oxides and ZrO 2 .
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1. A continuous glass fiber produced from a composition consisting essentially of:60-72 mole percent SiO 2 ,10-20 mole percent Al 2 O 3 ,14.0 to 22.0 mole percent RO, where RO equals the sum of MgO, CaO, SrO and BaO mole percents, wherein the amount of MgO is less than 3 mole percent,0 to 5 mole
1. A continuous glass fiber produced from a composition consisting essentially of:60-72 mole percent SiO 2 ,10-20 mole percent Al 2 O 3 ,14.0 to 22.0 mole percent RO, where RO equals the sum of MgO, CaO, SrO and BaO mole percents, wherein the amount of MgO is less than 3 mole percent,0 to 5 mole percent ZrO 2 , and0 to 3 mole percent alkaline metal oxide,wherein the composition has(i) a glass transition tcmperature of at least 1472° F. (800° C.),(ii) a viscosity of about 1000 poise at a forming temperature greater than 2500° F. (1371° C.),(iii) a liquidus temperature at least 50° F. (28° C.) below the forming temperature, and(iv) a glass transition temperature greater than 1517° F. (825° C.). 2. A continuous glass fiber according to claim 1, further consisting essentially of not more than about 4 mole percent of at least one oxide or halogen selected from the group consisting of ZnO, SO 2 , F 2 , B 2 O 3 , TiO 2 and Fe 2 O 3 . 3. A continuous glass fiber according to claim 1 wherein the glass transition temperature is at least 828° C. 4. A continuous glass fiber according to claim 1 wherein the glass transition temperature is at least 850° C. 5. A continuous glass fiber according to claim 1 wherein the glass transition temperature is at least 870° C. 6. A continuous glass fiber produced from a composition consisting essentially of:61-68 mole percent SiO 2 ,15-9 mole percent Al 2 O 3 ,15-20 mole percent RO where RO equals the sum of MgO, CaO, SrO and BaO, wherein the amount of MgO is less than 2.5 mole percent.less than 3 mole percent ZrO 2 , andless than 2 mole percent alkali metal oxide;wherein the composition has(i) a viscosity of 1000 poise at a forming temperature greater than 2500° F. (1371° C.),(ii) a liquidus temperature at least 50° F. (28° C.) below the forming temperature, and(iii) a glass transition temperature greater than 1517° F. (825° C.). 7. A continuous glass fiber according to claim 6, further consisting essentially of not more than about 4 mole percent of at least one oxide or halogen selected from the group consisting of ZnO, SO 2 , F 2 , B 2 O 3 , TiO2 and Fe 2 O 3 . 8. A continuous glass fiber produced from a composition consisting essentially of:61-68 mole percent SiO 2 ,15-19 mole percent Al 2 O 3 ,15-20 mole percent RO, wherein RO is equal to the sum of CaO and BaO,less than about 3 mole percent ZiO 2 , andless than about 2 mole percent alkali metal oxide,wherein the composition has(i) a viscosity of 1000 poise at a forming temperature of at least 2500° F. (1371° C.),(ii) a liquidus temperature at least 50° F. (28° C.) below the forming temperature and(iii) a glass transition temperature greater than 1544° F. (840° C.). 9. A continuous glass fiber according to claim 8, further consisting essentially of not more than 4 mole percent of at least one oxide or halogen selected from the group consisting of ZnO, SO 2 , F 2 , B 2 O 3 , TiO 2 and Fe 2 O 3 .
Ingemansson Bengt-Erik (Olofstrm SEX) Bjrk Bertil E. (Falkenberg SEX) Hedman Jan E. (Falkenberg SEX) Knutsson Knut G. (Simlngsdalen SEX) Larsson Nils H. I. (Falkenberg SEX), Container through which a gas flows, preferably a muffler, with fiberglass filling and method and apparatus for filling.
TenEyck John D. (Lewiston NY) Clere Thomas M. (Williamsville NY) Olson James (Youngstown NY) Waisala Steven (Aurora OH), High temperature stable continuous filament glass ceramic fiber.
TenEyck John D. (Lewiston NY) Clere Thomas M. (Williamsville NY) Olson James (Youngstown NY) Waisala Steven (Aurora OH), High temperature stable continuous filament glass ceramic fibers.
McGinnis, Peter B.; Hofmann, Douglas; Baker, David J.; Wingert, John W.; Bemis, Byron, Method of manufacturing S-glass fibers in a direct melt operation and products formed therefrom.
McGinnis, Peter Bernard; Hofmann, Douglas; Baker, David J.; Wingert, John W.; Bemis, Byron, Method of manufacturing high strength glass fibers in a direct melt operation and products formed there from.
Grubka, Lawrence Jerome; Ray, Brian Robert; Wilson, Geoffrey Howard; Devlin, John Paul; Swett, David; Breneman, Mark Bui; Pelletier, James Steven; Maw, Kurt Michael, Ridge vent.
Grubka, Lawrence J; Ray, Brian R; Wilson, Geoffrey H; Devlin, John P; Swett, David; Pelletier, James S; Maw, Kurt M; Breneman, Mark Bui, Shingle ridge vent.
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