Moisture-permeable separating membrane material
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-039/00
B01D-069/02
B01D-069/10
B01D-069/12
B01D-071/54
B32B-027/12
B32B-027/32
B32B-027/40
B01D-071/36
F28D-021/00
F28F-021/06
출원번호
US-0256671
(2010-03-01)
등록번호
US-9027764
(2015-05-12)
우선권정보
JP-2009-064473 (2009-03-17)
국제출원번호
PCT/JP2010/053230
(2010-03-01)
§371/§102 date
20111208
(20111208)
국제공개번호
WO2010/106900
(2010-09-23)
발명자
/ 주소
Marutani, Kazuhiro
Yamamoto, Satoshi
Imai, Takashi
출원인 / 주소
W. L. Gore & Associates, Co., Ltd.
대리인 / 주소
Miller, Amy L.
인용정보
피인용 횟수 :
4인용 특허 :
3
초록▼
A moisture-permeable separating membrane material includes a porous fluororesin membrane, a continuous moisture-permeable resin layer formed on the surface of the porous fluororesin membrane, and a textile layer for reinforcing the porous fluororesin membrane and the continuous moisture-permeable re
A moisture-permeable separating membrane material includes a porous fluororesin membrane, a continuous moisture-permeable resin layer formed on the surface of the porous fluororesin membrane, and a textile layer for reinforcing the porous fluororesin membrane and the continuous moisture-permeable resin layer. The textile layer contains a flame retardant in the inside of each fiber and the surface of each fiber has been treated with a flame retardant. The moisture-permeable separating membrane material makes it possible to improve flame retardancy without deteriorating heat exchange characteristics.
대표청구항▼
1. A moisture-permeable separating membrane material comprising a porous fluororesin membrane, a continuous moisture-permeable resin layer formed on the surface of the porous fluororesin membrane, and a textile layer for reinforcing the porous fluororesin membrane and the continuous moisture-permeab
1. A moisture-permeable separating membrane material comprising a porous fluororesin membrane, a continuous moisture-permeable resin layer formed on the surface of the porous fluororesin membrane, and a textile layer for reinforcing the porous fluororesin membrane and the continuous moisture-permeable resin layer, wherein the textile layer comprises a multiplicity of fibers, each fiber of the multiplicity of fibers containing a first flame retardant in the inside of each fiber, andwherein the surface of each fiber of the multiplicity of fibers has been treated with a second flame retardant. 2. The moisture-permeable separating membrane material according to claim 1, wherein the textile layer has been stacked on the side of the continuous moisture-permeable resin layer in the porous fluororesin membrane with the continuous moisture-permeable resin layer formed on the surface thereof. 3. The moisture-permeable separating membrane material according claim 1, wherein the continuous moisture-permeable resin layer has been stacked on the surface of the porous fluororesin membrane to form a composite membrane and then the reinforcing textile layer has been attached to the composite membrane on the side of the continuous moisture-permeable resin layer. 4. The moisture-permeable separating membrane material according to claim 1, wherein the porous fluororesin membrane is a porous polytetrafluoroethylene membrane. 5. The moisture-permeable separating membrane material according to claim 1, wherein the first flame retardant and the second flame retardant are non-halogen type flame retardants. 6. The moisture-permeable separating membrane material according to claim 5, wherein the first flame retardant and the second flame retardant are phosphorus type flame retardants. 7. The moisture-permeable separating membrane material according to claim 1, wherein the amount of the second flame retardant on the surface of each fiber per 1 m2 of the textile layer is from 1 g to 100 g. 8. The moisture-permeable separating membrane material according to claim 1, wherein the mass per unit area of the textile layer is from 2 g/m2 to 100 g/m2. 9. The moisture-permeable separating membrane material according to claim 1, wherein the thickness of part of the moisture-permeable resin, which part has penetrated into the inside of the porous fluororesin membrane, is from 3 μm to 30 μm. 10. The moisture-permeable separating membrane material according to claim 1, wherein the moisture-permeable resin is at least one resin selected from polyvinyl alcohol, polyethylene oxide, polyacrylic acid, and polyurethane type resins. 11. The moisture-permeable separating membrane material according to claim 1, wherein the moisture-permeable resin is a polyurethane type resin. 12. The moisture-permeable separating membrane material according to claim 11, wherein the polyurethane type resin has at least one hydrophilic group selected from hydroxy group, amino group, carboxy group, sulfinic acid group, and oxyethylene group. 13. The moisture-permeable separating membrane material according to claim 1, which has an air permeability of 1,000 seconds or higher, a moisture permeability of 40 g/m2.h or higher, and flame retardancy grade 2 or higher (as measured according to JIS Z 2150). 14. The moisture-permeable separating membrane material according to claim 1, wherein each fiber of the multiplicity of fibers is mixed with the first flame retardant before formation of the moisture-permeable separating membrane. 15. The moisture-permeable separating membrane material according to claim 14, wherein the first flame retardant is in the form of a powder when each fiber of the multiplicity of fibers is mixed with the first flame retardant. 16. The moisture-permeable separating membrane material according to claim 1, wherein each fiber of the multiplicity of fibers is impregnated with the first flame retardant before formation of the moisture-permeable separating membrane. 17. The moisture-permeable separating membrane material according to claim 1, wherein each fiber of the multiplicity of fibers is formed from a resin, and the first flame retardant is bound to the resin during production of the resin fiber. 18. The moisture-permeable separating membrane material according to claim 1, wherein each fiber of the multiplicity of fibers is formed from a resin, and the first flame retardant is copolymerized with the resin during production of the resin fiber. 19. The moisture-permeable separating membrane material according to claim 1, wherein the first flame retardant and the second flame retardant are different. 20. The moisture-permeable separating membrane material according to claim 1, wherein the second flame retardant is in the form of a liquid. 21. The moisture-permeable separating membrane material according to claim 1, wherein the continuous moisture-permeable resin layer is substantially not flame retarded.
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이 특허에 인용된 특허 (3)
Du Prez Eddie,BEX ; Coppens Pierre,BEX, Light-stable elastomeric polyurethane mouldings and process for the production thereof.
Schafer Hermann (Leverkusen DT) Weber Christian (Cologne DT), Polyurethane foams having an integral skin using a mixture of polyols as the chain extender.
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