Method for manufacturing a mineral fiber-containing element and element produced by that method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
D01G-009/06
D01G-023/02
D01G-023/08
D04H-001/4226
D04H-001/736
D04H-001/72
B29C-067/24
D01G-009/16
D04H-001/60
D04H-001/64
D04H-001/4209
D04H-001/4218
D04H-001/54
D04H-001/587
D04H-001/645
D04H-001/732
출원번호
US-0387839
(2010-07-30)
등록번호
US-9163342
(2015-10-20)
우선권정보
EP-09167034 (2009-07-31)
국제출원번호
PCT/EP2010/061151
(2010-07-30)
§371/§102 date
20120406
(20120406)
국제공개번호
WO2011/012712
(2011-02-03)
발명자
/ 주소
Rosenberg, Gorm
Christensen, Kenn
출원인 / 주소
ROCKWOOL INTERNATIONAL A/S
대리인 / 주소
Tarolli, Sundheim, Covell & Tummino LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록
The invention relates to a method for manufacturing a mineral fiber-containing composite and the novel mineral fiber-containing element produced by that method. The invention also relates to an apparatus suitable for carrying out the method of the invention.
대표청구항▼
1. A method for manufacturing a mineral fiber-containing element, said method comprising the steps of: providing mineral fibers in an amount of 90 to 99 wt % of the total weight of starting materials in the form of a collected web,providing a thermally curable binder in an amount of 1 to 10 wt % of
1. A method for manufacturing a mineral fiber-containing element, said method comprising the steps of: providing mineral fibers in an amount of 90 to 99 wt % of the total weight of starting materials in the form of a collected web,providing a thermally curable binder in an amount of 1 to 10 wt % of the total weight of starting materials,subjecting the collected web of fibers to a disentanglement process, suspending the fibers in a primary air flow, andmixing the binder with the mineral fibers before, during or after the disentanglement process to form a mixture of mineral fibers and binder, collecting the mixture of mineral fibres and binder and pressing and curing the mixture to provide a consolidated composite with a density of from 120 kg/m3 to 1000 kg/m3;wherein the mineral fibers and binder, when suspended in the primary air flow, are subjected to a further air flow in a different direction to the primary air flow;wherein the primary air flow is generally lateral and the further air flow is generally upwards. 2. A method according to claim 1, wherein the disentanglement process comprises feeding the web from a duct with a lower relative air flow to a duct with a higher relative air flow. 3. A method according to claim 2 wherein the speed of the higher relative air flow is from 20 m/s to 150 m/s, preferably from 30 m/s to 120 m/s, more preferably from 40 m/s to 80 m/s, most preferably from 50 m/s to 70 m/s. 4. A method according to claim 2, wherein the disentanglement process comprises feeding the collected web to at least one roller which rotates about its longitudinal axis and has spikes protruding from its circumferential surface. 5. A method according to claim 4, wherein the roller rotates at a rate of from 500 rpm to 5000 rpm, preferably from 1000 rpm to 4000 rpm, more preferably from 1500 rpm to 3500 rpm, most preferably from 2000 rpm to 3000 rpm. 6. A method according to claim 4, wherein the outermost points of the spikes of the roller move at a speed of from 20 m/s to 150 m/s, preferably from 30 m/s to 120 m/s, more preferably from 40 m/s to 80 m/s, most preferably from 50 m/s to 70 m/s. 7. A method according to claim 1, wherein the roller has a diameter based on the outermost points of the spikes of from 20 cm to 80 cm, preferably from 30 cm to 70 cm, more preferably from 40 cm to 60 cm and most preferably from 45 cm to 55 cm. 8. A method according to claim 1, wherein the mineral fibers are provided in the form of an uncured web containing wet binder. 9. A method according to claim 1, wherein the method is performed at a mineral wool production line, which feeds a primary or secondary mineral wool web into the fiber disentanglement process. 10. A method according to claim 1, wherein the primary air flow has an initial speed of from 20 m/s to 150 m/s, preferably from 30 m/s to 120 m/s, more preferably from 40 m/s to 80 m/s, most preferably from 50 m/s to 70 m/s. 11. A method according to claim 1 wherein the further air flow has a speed of from 1 to 20 m/s, preferably from 1 to 13 m/s, more preferably from 2 to 9 m/s, most preferably from 3 to 7 m/s. 12. A method according to claim 1, wherein the binder is provided in dry form. 13. A method according to claim 1, wherein the binder is provided in wet form. 14. A method according to claim 1, wherein no organic fibres are mixed with the mineral fibers and binder. 15. A method according to claim 14, wherein the mineral fibers and binder together make up at least 96%, preferably at least 98% and more preferably substantially all of the total weight of starting materials. 16. A method according to claim 1, wherein the consolidated composite has a density of from 170 kg/m3 to 1000 kg/m3.
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