IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0894753
(2004-07-20)
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등록번호 |
US-7297753
(2007-11-20)
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발명자
/ 주소 |
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
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A method for reducing the permeation rate of a permeable species through a polymeric material includes identifying a solubility-increasing species in the polymeric material having a reversible affinity for the permeable species, and removing or altering at least a portion of the solubility-increasin
A method for reducing the permeation rate of a permeable species through a polymeric material includes identifying a solubility-increasing species in the polymeric material having a reversible affinity for the permeable species, and removing or altering at least a portion of the solubility-increasing species in the polymeric material. In one application, the permeable species is water, and the solubility-increasing species is hygroscopic. A example of a polymeric material is an elastomeric polymer. The solubility-increasing species may be removed in part from an existing piece of the polymeric material by leaching it out. The polymeric material may instead be manufactured with a reduced content of the solubility-increasing species.
대표청구항
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What is claimed is: 1. A method for reducing the permeation rate of a permeable species through a polymeric material, comprising the steps of identifying a presence of a solubility-increasing species in the polymeric material, wherein the presence of the solubility-increasing species alters the per
What is claimed is: 1. A method for reducing the permeation rate of a permeable species through a polymeric material, comprising the steps of identifying a presence of a solubility-increasing species in the polymeric material, wherein the presence of the solubility-increasing species alters the permeability of the polymeric material by increasing a solubility of the permeable species in the polymeric material; and removing or altering at least a portion of the solubility-increasing species in the polymeric material, wherein the step of removing or altering reduces the solubility of the permeable species in the polymeric material and thereby reduces the permeation rate of the permeable species through the polymeric material. 2. The method of claim 1, wherein the step of removing includes the step of providing the polymer in the form of a container. 3. The method of claim 1, wherein the step of removing includes the step of providing the polymer in the form of a seal. 4. The method of claim 1, wherein the step of removing or altering includes the step of providing an elastomeric polymer. 5. The method of claim 1, wherein the step of removing or altering includes the step of providing a fluorocarbon elastomeric polymer. 6. The method of claim 1, wherein the step of removing or altering includes the step of identifying a hygroscopic solubility-increasing species. 7. The method of claim 1, wherein the step of removing or altering includes the steps of providing a piece of the polymeric material, and leaching the solubility-increasing species from the piece of the polymeric material. 8. The method of claim 1, wherein the step of removing or altering includes the steps of identifying a baseline level of the solubility-increasing species in a commercially available form of the polymeric material, and manufacturing the polymeric material with a target level of the solubility-increasing species less than the baseline level. 9. A method for reducing the permeation rate of water through a polymeric material, comprising the steps of identifying a presence of a hygroscopic species in the polymeric material, wherein the presence of the hygroscopic species alters the permeability of the polymeric material by increasing the solubility of water in the polymeric material; and removing or altering at least a portion of the hygroscopic species in the polymeric material, wherein the removing or altering reduces the solubility of water in the polymeric material and thereby reduces the permeation rate of water through the polymeric material. 10. The method of claim 9, wherein the step of removing includes the step of providing the polymer in the form of a container. 11. The method of claim 9, wherein the step of removing includes the step of providing the polymer in the form of a seal. 12. The method of claim 9, wherein the step of removing or altering includes the step of providing an elastomeric polymer. 13. The method of claim 9, wherein the step of removing or altering includes the step of providing a fluorocarbon elastomeric polymer. 14. The method of claim 9, wherein the step of removing or altering includes the step of providing an ethylene propylene elastomeric polymer. 15. The method of claim 9, wherein the step of removing or altering includes the step of providing a piece of the polymeric material, and leaching the solubility-increasing species from the polymeric material. 16. The method of claim 9, wherein the step of removing or altering includes the steps of identifying a baseline level of the solubility-increasing species in a commercially available form of the polymeric material, and manufacturing the polymeric material with a target level of the solubility-increasing species less than the baseline level. 17. A method for reducing the permeation rate of water through a polymeric material, comprising the steps of identifying a presence of a hygroscopic species in the polymeric material, wherein the hygroscopic species increases a solubility of water in the polymeric material, and wherein the polymeric material is selected from the group consisting of a fluorocarbon elastomeric polymer and an ethylene propylene elastomeric polymer; and removing or altering at least a portion of the hygroscopic species in the polymeric material to reduce the solubility of water in the polymeric material, wherein the polymeric material is in the form of a seal, a container, or a lining of a container. 18. The method of claim 17, wherein the step of removing or altering includes the step of providing a piece of the polymeric material, and leaching the at least some of the hygroscopic species from the polymeric material. 19. The method of claim 17, wherein the step of removing or altering includes the steps of identifying a baseline level of the hygroscopic species in a commercially available form of the polymeric material, and manufacturing the polymeric material with a target level of the hygroscopic species less than the baseline level.
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