Mounting mat and pollution control device with the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/92
F01N-003/08
F01N-013/14
F01N-013/16
D04H-001/42
D04H-001/46
F01N-003/28
출원번호
US-0127193
(2009-10-27)
등록번호
US-8916102
(2014-12-23)
국제출원번호
PCT/US2009/062188
(2009-10-27)
§371/§102 date
20110610
(20110610)
국제공개번호
WO2010/062588
(2010-06-03)
발명자
/ 주소
De Rovere, Anne N.
Lalouch, Lahoussaine
Merry, Richard P.
출원인 / 주소
3M Innovative Properties Company
인용정보
피인용 횟수 :
0인용 특허 :
17
초록▼
Non-woven mat including magnesium aluminum silicate glass fibers and amorphous refractory ceramic fibers, bio-soluble ceramic fibers, and/or heat-treated silica fibers. Embodiments of the nonwoven mat surprisingly have a Resiliency Value after three thermal cycles from 25° C. to 700° C./400° C. of t
Non-woven mat including magnesium aluminum silicate glass fibers and amorphous refractory ceramic fibers, bio-soluble ceramic fibers, and/or heat-treated silica fibers. Embodiments of the nonwoven mat surprisingly have a Resiliency Value after three thermal cycles from 25° C. to 700° C./400° C. of the Real Condition Fixture Test at least 1.1 times greater than the Resiliency Value of a comparable non-woven mat consisting of any individual type of fibers of the non-woven mat. The non-woven mats are useful, for example, in pollution control devices and other thermal insulation applications.
대표청구항▼
1. A non-woven mat comprised of a blend comprised of at least 60 percent by weight magnesium aluminum silicate glass fibers and at least 10 percent by weight fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and
1. A non-woven mat comprised of a blend comprised of at least 60 percent by weight magnesium aluminum silicate glass fibers and at least 10 percent by weight fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and mixtures thereof, based on the total weight of the mat, wherein the magnesium aluminum silicate glass fibers comprise Al2O3 in a range from 10 to 30 percent by weight, SiO2 in a range from 52 to 70 percent by weight, and MgO in a range from 1 to 12 percent by weight, based on the total weight of the magnesium aluminum silicate glass fiber, and wherein the non-woven mat is collectively comprised of at least 80 percent by weight of said magnesium aluminum silicate glass fibers and said fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and mixtures thereof, based on the total weight of the mat, and wherein the magnesium aluminum silicate glass fibers and the fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and mixtures thereof present in the blend collectively provide the non-woven mat with a Resiliency Value after three thermal cycles from 25° C. to 700° C./400° C. of the Real Condition Fixture Test at least 1.1 times greater than the Resiliency Value of a comparable non-woven mat consisting of any individual magnesium aluminum silicate glass fibers, amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, present in the blend of fibers. 2. A non-woven mat according to claim 1, wherein the non-woven mat comprises a blend comprised of at least 60 percent by weight magnesium aluminum silicate glass fibers and at least 10 percent by weight bio-soluble ceramic fibers, and wherein the non-woven mat is collectively comprised of at least 80 percent by weight of said magnesium aluminum silicate glass fibers and said bio-soluble ceramic fibers, based on the total weight of the mat. 3. The non-woven mat according to claim 1, wherein the non-woven mat comprises a blend comprised of at least 60 percent by weight magnesium aluminum silicate glass fibers and at least 10 percent by weight heat-treated silica fibers, and wherein the non-woven mat is collectively comprised of at least 80 percent by weight of said magnesium aluminum silicate glass fibers and said heat-treated silica fibers, based on the total weight of the mat. 4. The non-woven mat according to claim 1, wherein the non-woven mat as-made prior to heating above 500° C. contains not greater than 5 percent by weight organic material, based on the total weight of the mat. 5. The non-woven mat according to claim 1, wherein the non-woven mat is non-intumescent. 6. The non-woven mat according to claim 1, wherein the mat comprises at least 70 percent by weight of the magnesium aluminum silicate glass fibers based on the total weight of the mat. 7. The non-woven mat according to claim 1, wherein the mat comprises at least 80 percent by weight of the magnesium aluminum silicate glass fibers based on the total weight of the mat. 8. The non-woven mat according to claim 1, wherein the mat comprises at least 15 percent by weight of the fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and mixtures thereof based on the total weight of the mat. 9. The non-woven mat according to claim 1, wherein the mat comprises at least 20 percent by weight of the fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and mixtures thereof based on the total weight of the mat. 10. The non-woven mat according to claim 1, wherein the non-woven mat has an as-made bulk density in a range from 0.05 g/cm3 to 0.3 g/cm3. 11. The non-woven mat according to claim 1, wherein the non-woven mat has a thickness in the range from 3 mm to 50 mm. 12. The non-woven mat according to claim 1, wherein the magnesium aluminum silicate fibers have diameters of at least 5 micrometers. 13. The non-woven mat according to claim 1, wherein the magnesium aluminum silicate fibers are shot-free. 14. A pollution control device comprising a pollution control element mounted in a casing with the mat according to claim 1. 15. An exhaust system comprising a double walled exhaust component and the mat according to claim 1, wherein the mat is positioned in a gap between the walls of the double wall exhaust component. 16. The non-woven mat according to claim 6, wherein the mat comprises at least 20 percent by weight of the fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and mixtures thereof based on the total weight of the mat. 17. The non-woven mat according to claim 7, wherein the mat comprises at least 15 percent by weight of the fibers selected from the group consisting of amorphous refractory ceramic fibers, bio-soluble ceramic fibers, heat-treated silica fibers, and mixtures thereof based on the total weight of the mat. 18. The non-woven mat according to claim 6, wherein the non-woven mat is non-intumescent. 19. The non-woven mat according to claim 7, wherein the non-woven mat is non-intumescent. 20. The non-woven mat according to claim 1, wherein the non-woven mat has an as-made bulk density in a range from 0.05 g/cm3 to 0.3 g/cm3, a thickness in the range from 3 mm to 50 mm, and the magnesium aluminum silicate fibers are shot free with diameters of at least 5 micrometers.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (17)
Richter Robin DE; Focke Thomas DE; Lehr Sven DE, Al2O3-containing, high-temperature resistant glass sliver with highly textile character, and products thereof.
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.
Gotoh Sotoji (Yokosuka JA) Nakamura Jun (Tokyo JA) Abe Yuji (Yokohama JA) Matsuo Tadashige (Yokohama JA), Impregnated fibrous catalyst for treating exhaust gas of an internal combustion engine and process for making same.
Olds Leonard E. (977 S. Lake Gulch Rd. Castle Rock CO 80104) Kielmeyer William H. (3374 W. Chenango Ave. Englewood CO 80110), Inorganic fiber composition.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.