US2011165811A1PendingUtilityA1

Article Formed From Electrospinning A Dispersion

59
Assignee: DOW CORNINGPriority: Aug 29, 2008Filed: Aug 28, 2009Published: Jul 7, 2011
Est. expiryAug 29, 2028(~2.1 yrs left)· nominal 20-yr term from priority
Inventors:Randal M. HillEric JoffreDonald T. LilesBonnie J. Ludwig
D01D 5/0038D01D 5/38D01F 6/60D01F 6/62D01D 5/00Y10T442/681
59
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Claims

Abstract

An article of fibers includes a cured compound. The fibers are formed from electrospinning a dispersion. The dispersion includes a liquid and a condensation curable compound. A content of the liquid in the dispersion is reduced such that the condensation curable compound cures. The article is formed from a method of manufacturing which includes the step of forming the dispersion. The method also includes the step of electro spinning the dispersion to reduce the content of the liquid such that the condensation curable compound cures.

Claims

exact text as granted — not AI-modified
1 . A method of manufacturing an article comprising fibers formed from a dispersion, said method comprising the steps of:
 A. forming the dispersion comprising;
 (i) a liquid, and 
 (ii) a condensation curable silicone rubber, and 
   B. electrospinning the dispersion to reduce a content of the liquid such that the condensation curable silicone rubber cures via condensation.   
     
     
         2 . A method as set forth in  claim 1  wherein the dispersion further comprises a surfactant. 
     
     
         3 . A method as set forth in  claim 2  wherein the surfactant is combined with the liquid before the dispersion is formed. 
     
     
         4 . A method as set forth in  claim 2  wherein the surfactant is present in the dispersion in an amount of from 0.5 to 5 percent by weight based on a weight of the condensation curable compound. 
     
     
         5 . A method as set forth in  claim 1  wherein the dispersion further comprises a thickener. 
     
     
         6 . A method as set forth in  claim 5  wherein the thickener is further defined as polyethylene oxide. 
     
     
         7 . A method as set forth in  claim 5  wherein the thickener is combined with the liquid before the dispersion is formed. 
     
     
         8 . A method as set forth in  claim 5  wherein the thickener is present in the dispersion in an amount of from 0.05 to 5 percent by weight based on a weight of the dispersion. 
     
     
         9 . (canceled) 
     
     
         10 . (canceled) 
     
     
         11 . (canceled) 
     
     
         12 . (canceled) 
     
     
         13 . A method as set forth in any one of  claims 1 - 8  wherein the dispersion further comprises a condensation curable organic compound. 
     
     
         14 . A method as set forth in any one of  claims 1 - 8  wherein the dispersion comprises from 20 to 80 parts by weight of the condensation curable silicone rubber per 100 parts by weight of the dispersion so long as a total amount of the dispersion does not exceed 100 parts by weight. 
     
     
         15 . A method as set forth in  claim 14  wherein the dispersion comprises from 20 to 80 parts by weight of the liquid per 100 parts by weight of the dispersion so long as a total amount of the dispersion does not exceed 100 parts by weight. 
     
     
         16 . A method as set forth in any one of  claims 1 - 8  wherein, the liquid is further defined as water. 
     
     
         17 . A method as set forth in  claim 16  wherein the condensation curable silicone rubber is dispersed in the water. 
     
     
         18 . A method as set forth in any one of  claims 1 - 8  further comprising the step of drying the fibers to further reduce a content of the liquid such that the condensation curable silicone rubber. 
     
     
         19 . A method as set forth in  claim 1  wherein the dispersion comprises a dispersed phase comprising the condensation curable silicone rubber and a continuous phase comprising the liquid, a surfactant, and a thickener. 
     
     
         20 . A method as set forth in any one of  claims 1 - 8  wherein the fibers have a stress of at least 15 psi at break and a strain of at least 100 percent at break. 
     
     
         21 . An article of fibers comprising a cured compound and formed from electrospinning a dispersion comprising:
 A. a liquid; and   B. a condensation curable silicone rubber;   wherein a content of said liquid is reduced such that said condensation curable silicone rubber.   
     
     
         22 . An article as set forth in  claim 21  wherein said dispersion further comprises a surfactant. 
     
     
         23 . An article as set forth in  claim 22  wherein said surfactant is combined with said liquid before said dispersion is formed. 
     
     
         24 . An article as set forth in  claim 22  wherein said surfactant is present in said dispersion in an amount of from 0.5 to 5 percent by weight based on a weight of said condensation curable silicone rubber. 
     
     
         25 . An article as set forth in  claim 21  wherein said dispersion further comprises a thickener. 
     
     
         26 . An article as set forth in  claim 25  wherein said thickener is further defined as polyethylene oxide. 
     
     
         27 . An article as set forth in  claim 25  wherein said thickener is combined with said liquid before said dispersion is formed. 
     
     
         28 . An article as set forth in  claim 25  wherein said thickener is present in said dispersion in an amount of from 0.05 to 5 percent by weight based on a weight of said dispersion. 
     
     
         29 . (canceled) 
     
     
         30 . (canceled) 
     
     
         31 . (canceled) 
     
     
         32 . (canceled) 
     
     
         33 . An article as set forth in any one of  claims 21 - 28  wherein said dispersion further comprises a condensation curable organic compound. 
     
     
         34 . An article as set forth in any of  claims 21 - 28  wherein said dispersion comprises from 20 to 80 parts by weight of said condensation curable silicone rubber per 100 parts by weight of said dispersion so long as a total amount of said dispersion does not exceed 100 parts by weight. 
     
     
         35 . An article as set forth in  claim 34  wherein said dispersion comprises from 20 to 80 parts by weight of said liquid per 100 parts by weight of said dispersion so long as a total amount of said dispersion does not exceed 100 parts by weight. 
     
     
         36 . An article as set forth in any one of  claims 21 - 28  wherein said liquid is further defined as water. 
     
     
         37 . An article as set forth in  claim 21  wherein said dispersion comprises a dispersed phase comprising said condensation curable silicone rubber and a continuous phase comprising said liquid, a surfactant, and a thickener. 
     
     
         38 . An article as set forth in  claim 37  wherein said condensation curable silicone rubber comprises a silicone elastomer present in an amount of from 20 to 80 parts by weight per 100 parts by weight of said dispersion, said liquid is further defined as water and is present in an amount of from 20 to 80 parts by weight per 100 parts by weight of the dispersion, said surfactant comprises methylaminomethylpropanol present in an amount of from 0.5 to 5 parts by weight per 100 parts by weight of said dispersion, said thickener is further defined as polyethylene oxide and is present in an amount of from 0.05 to 5 parts by weight per 100 parts by weight of said dispersion. 
     
     
         39 . An article as set forth in any one of  claims 21 - 28  that is further defined as a non-woven mat. 
     
     
         40 . A method of manufacturing an article comprising fibers formed from a dispersion, said method comprising the steps of:
 A. forming the dispersion comprising;
 (i) a liquid, and 
 (ii) a condensation curable silicone rubber, 
   B. electrospinning the dispersion to form the fibers; and   C. curing the condensation curable silicone rubber.   
     
     
         41 . A method as set forth in  claim 40  wherein the dispersion further comprises a surfactant and a thickener. 
     
     
         42 . A method as set forth in  claim 41  wherein the surfactant is present in the dispersion in an amount of from 0.5 to 5 percent by weight based on a weight of the condensation curable silicone rubber. 
     
     
         43 . A method as set forth in  claim 41  wherein the thickener is further defined as polyethylene oxide. 
     
     
         44 . A method as set forth in  claim 41  wherein the thickener is present in the dispersion in an amount of from 0.05 to 5 percent by weight of the dispersion. 
     
     
         45 . (canceled) 
     
     
         46 . (canceled) 
     
     
         47 . (canceled) 
     
     
         48 . A method as set forth in any one of  claims 40 - 44  wherein the dispersion comprises from 20 to 80 parts by weight of the liquid per 100 parts by weight of the dispersion so long as a total amount of the dispersion does not exceed 100 parts by weight. 
     
     
         49 . A method as set forth in any one of  claims 40 - 44  wherein the liquid is further defined as water. 
     
     
         50 . A method as set forth in  claim 49  wherein the condensation curable silicone rubber.

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