[미국특허]
Active particle-enhanced membrane and methods for making and using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/22
B01D-071/06
B01D-053/02
출원번호
US-0801647
(2007-05-09)
등록번호
US-8945287
(2015-02-03)
발명자
/ 주소
Haggquist, Gregory W.
출원인 / 주소
Cocona, Inc.
대리인 / 주소
Neugeboren O'Dowd PC
인용정보
피인용 횟수 :
1인용 특허 :
124
초록▼
The present disclosure relates to active particle-enhanced membrane and methods for making and using the same. In some embodiments, a breathable membrane includes a base material solution and active particles. The active particles incorporated in the membrane may improve or add various desirable pro
The present disclosure relates to active particle-enhanced membrane and methods for making and using the same. In some embodiments, a breathable membrane includes a base material solution and active particles. The active particles incorporated in the membrane may improve or add various desirable properties to the membrane, such as for example, the moisture vapor transport capability, the odor adsorbance, the anti-static properties, or the stealth properties of the membrane. In some embodiments, the base material may exhibit water-proof properties when converted into non-solution state, and thereby result in a water-proof membrane. In some embodiments, the active particles may be protected from losing activity before, during, or after (or any combination thereof) the process of producing the membrane. The membrane may be applied to a substrate, or may be used independent of a substrate.
대표청구항▼
1. A water-proof breathable membrane comprising: a substantially liquid-impermeable cured base material solution comprising a first thickness;a plurality of active particles in contact with the substantially liquid-impermeable cured base material solution, wherein the plurality of active particles,
1. A water-proof breathable membrane comprising: a substantially liquid-impermeable cured base material solution comprising a first thickness;a plurality of active particles in contact with the substantially liquid-impermeable cured base material solution, wherein the plurality of active particles, are capable of improving the transmission of vapor through the substantially liquid-impermeable cured base material solution, andcomprise a second thickness, wherein the first thickness is at least 2.5 times larger than the second thickness but less than an order of magnitude larger than the second thickness;at least one removable encapsulant in an amount effective to prevent at least a substantial portion of the plurality of active particles from being deactivated prior to removal of the removable encapsulant; wherein, the at least one removable encapsulant is removable to reactivate at least a portion of the plurality of active particles to improve the transmission of vapor through the water-proof breathable membrane, andthe membrane comprises a moisture vapor transmission rate from about 600 g/m2/day to about 11000 g/m2/day. 2. The membrane according to claim 1, wherein the membrane possesses anti-static properties due at least in part to the active particles. 3. The membrane according to claim 1, wherein the membrane possesses stealth properties due at least in part to the active particles. 4. The membrane according to claim 1, wherein the membrane possesses odor absorbance properties due at least in part to the active particles. 5. The membrane according to claim 1, wherein the membrane possesses quick drying properties due at least in part to the active particles. 6. The membrane according to claim 1, wherein the base material solution is selected from the group consisting of: a polyurethane solution, a polyacrylic solution, 1,3 propanediol terephthalate solutions, and any suitable combination thereof. 7. The membrane according to claim 1, wherein the active particles comprise activated carbon. 8. The membrane according to claim 1, wherein the active particles comprise zeolites. 9. The membrane according to claim 1, wherein the active particles are selected from the group consisting of: antibacterial, antiviral, antimicrobial, antifungal particles, and any suitable combination thereof. 10. The membrane according to claim 1, wherein the active particles are selected from the group consisting of: activated carbon, aluminum oxide (activated alumina), silica gel, soda ash, aluminum trihydrate, baking soda, p-methoxy-2-ethoxyethyl ester cinnamic acid (cinoxate), zinc oxide, zeolites, titanium dioxide, molecular filter-type materials, and any suitable combination thereof. 11. The membrane according to claim 1, wherein the at least one removable encapsulant is selected from the group consisting of: water-soluble surfactants, surfactants, salts, photo-reactive materials, degradable materials, bio-degradable materials, ethoxylated acetylenic diols, starches, lubricants, glycols, corn starch, mineral spirits, organic solvents, paraffinic solvents, and any suitable combination thereof. 12. The membrane according to claim 1, wherein the active particles comprise about 0% to about 75% of the total weight of the membrane. 13. The membrane according to claim 1, wherein the active particles comprise about 30% to about 50% of the total weight of the membrane. 14. The membrane according to claim 1, wherein the active particles comprise about 0% to about 30% of the total weight of the membrane. 15. The membrane according to claim 1, wherein the active particles comprise about 0% to about 50% of the total weight of the membrane. 16. The membrane according to claim 1, wherein the membrane comprises a yarn or fabric. 17. The membrane according to claim 1, wherein the membrane comprises a plastic material. 18. The membrane according to claim 1, wherein the membrane comprises an article of clothing. 19. The membrane according to claim 1, wherein the membrane comprises a fabric. 20. The membrane according to claim 1, wherein the membrane comprises a coated fabric. 21. The membrane according to claim 1, wherein the membrane is coated on to ePTFE. 22. The membrane according to claim 1, wherein the membrane comprises a coated article of clothing. 23. The membrane according to claim 1, wherein the membrane comprises a non-woven membrane. 24. The membrane according to claim 1, wherein the membrane comprises a laminate. 25. The membrane according to claim 1, wherein the membrane is selected from the group consisting of bags, foam, plastic components, upholstery, carpeting, rugs, mats, sheets, towels, rugs, pet beds, mattress pads, mattresses, curtains, filters, shoes, insoles, diapers, shirts, pants, blouses, undergarments, protective suits, and any suitable combination thereof. 26. The membrane according to claim 1, wherein the removable encapsulant is a first removable encapsulant, and the membrane further comprises a second removable encapsulant. 27. A water-proof composition comprising: a liquid-impermeable breathable cured base material comprising a first thickness;a plurality of active particles in contact with the liquid-impermeable breathable cured base material, the plurality of active particles comprising a second thickness; and wherein, the first thickness comprises a thickness at least 2.5 times larger than the second thickness but less than an order of magnitude larger than the second thickness,the active particles improve the moisture vapor transport capacity of the composition, anda moisture vapor transmission rate of the water-proof composition comprises from about 600 g/m2/day to about 11000 g/m2/day. 28. The composition of claim 27, wherein the active particles comprise about 0% to about 75% of the total weight of the composition. 29. The composition of claim 27, wherein the active particles comprise about 30% to about 50% of the total weight of the composition. 30. The composition of claim 27, wherein the active particles comprise about 0% to about 30% of the total weight of the composition. 31. The composition of claim 27, wherein the active particles comprise about 25% to about 75% of the total weight of the composition. 32. The composition of claim 27, wherein the active particles comprise about 0% to about 50% of the total weight of the composition. 33. The composition of claim 27, wherein the composition possesses anti-static properties at least in part due to the active particles. 34. The composition of claim 27, wherein the composition possesses stealth properties at least in part due to the active particles. 35. The composition of claim 27, wherein the composition possesses odor absorbance properties at least in part due to the active particles. 36. The composition of claim 27, wherein the composition possesses quick drying properties at least in part due to the active particles. 37. The composition of claim 27, wherein the active particles are selected from the group consisting of: activated carbon, aluminum oxide (activated alumina), silica gel, soda ash, aluminum trihydrate, baking soda, p-methoxy-2-ethoxyethyl ester cinnamic acid (cinoxate), zinc oxide, zeolites, titanium dioxide, molecular filter-type materials, and any suitable combination thereof. 38. The composition of claim 27 further comprising: at least one removable encapsulant in an amount effective to prevent at least a substantial portion of the active particles from being deactivated prior to removal of the removable encapsulant, and wherein the removable encapsulant is removable to reactivate at least a portion of the active particles to improve the moisture vapor transport capacity of the composition. 39. The composition of claim 38, wherein the at least one removable encapsulant is selected from the group consisting of: water-soluble surfactants, surfactants, salts, polymer salts, polyvinyl alcohols, waxes, photo-reactive materials, degradable materials, bio-degradable materials, ethoxylated acetylenic diols, starches, lubricants, glycols, corn starch, mineral spirits, organic solvents, paraffinic solvents, and any suitable combination thereof. 40. A water-proof composition comprising: a base material comprising a first thickness;a plurality of active particles in contact with the base material, the plurality of active particles comprising a second thickness; and wherein, the first thickness is at least 2.5 times larger than the second thickness but less than an order of magnitude larger than the second thickness,the active particles improve the vapor transport and anti-static properties of the composition, anda moisture vapor transmission rate of the water-proof composition comprises from about 600 g/m2/day to about 11000 g/m2/day. 41. The composition of claim 40, wherein the active particles comprise activated carbon. 42. The composition of claim 40, wherein the active particles comprise zeolites. 43. The composition of claim 40, wherein the active particles comprise about 30% to about 50% of the total weight of the composition. 44. The composition of claim 40, wherein the active particles comprise about 0% to about 30% of the total weight of the composition. 45. A water-proof composition comprising: a base material comprising a first thickness;a plurality of active particles in contact with the base material, the plurality of active particles comprising a second thickness; and wherein, the first thickness comprises a thickness about 2.5 times larger than the second thickness but less than an order of magnitude larger than the second thickness,the active particles improve the vapor transport and stealth properties of the composition, anda moisture vapor transmission rate of the water-proof composition comprises from about 600 g/m2/day to about 11000 g/m2/day. 46. The composition of claim 45, wherein the active particles comprise activated carbon. 47. The composition of claim 45, wherein the active particles comprise zeolites. 48. The composition of claim 45, wherein the active particles comprise about 30% to about 50% of the total weight of the composition. 49. The composition of claim 45, wherein the active particles comprise about 0% to about 30% of the total weight of the composition. 50. The membrane of claim 1, wherein, the substantially liquid-impermeable cured base material solution, plurality of active particles, and at least one removable encapsulant comprise a mixture, the mixture being adapted for application to a substrate prior to the substantially liquid-impermeable cured base material solution being cured. 51. The membrane of claim 1 wherein, the first thickness comprises a thickness of about 1 mil. 52. The composition of claim 27 wherein, the first thickness comprises a thickness of about 1 mil. 53. The composition of claim 40 wherein, the first thickness comprises a thickness of about 1 mil. 54. The composition of claim 45 wherein, the first thickness comprises a thickness of about 1 mil. 55. The membrane of claim 1 wherein, the first thickness is at least as large as the second thickness. 56. The composition of claim 27 wherein, the first thickness is at least as large as the second thickness. 57. The composition of claim 40 wherein, the first thickness is at least as large as the second thickness. 58. The composition of claim 45 wherein, the first thickness is at least as large as the second thickness. 59. The composition of claim 1 wherein, the second thickness comprises a thickness of about 10 microns. 60. The composition of claim 27 wherein, the second thickness comprises a thickness of about 10 microns. 61. The composition of claim 40 wherein, the second thickness comprises a thickness of about 10 microns. 62. The composition of claim 45 wherein, the second thickness comprises a thickness of about 10 microns.
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