SILOXANE BASED HOLLOW FIBERS

The present invention provides inventive hollow fibers having defined gas permability characteristics. Hollow fibers of the present invention are characterized by a PMPgreater than 30,000 Barrer*MPa. Curable compositions and silicone elastomers produced by curing the curable compositions are provided by the present invention. Compositions and methods for making the hollow fibers and devices incorporating them are provided by the present invention. 3. The curable composition of claim 1 , wherein for siloxane polymer (a): each R1 claim 1 , R2 claim 1 , R2′ claim 1 , R3 claim 1 , R4 claim 1 , R5 and R6 is independently selected from the group consisting of: CH claim 1 , CHCH claim 1 , CHCHCH claim 1 , CHCHCHCH claim 1 , CHCHF claim 1 , phenyl claim 1 , CH═CH claim 1 , OH claim 1 , OCH claim 1 , epoxy claim 1 , carbinol claim 1 , methacrylate and acrylate claim 1 , x is an integer in the range of 2-2500 claim 1 , inclusive claim 1 , y is absent or is an integer in the range of 1-1000 claim 1 , inclusive claim 1 , and z is absent.4. The curable composition of claim 2 , wherein for siloxane polymer (d): each R1 claim 2 , R2 claim 2 , R2′ claim 2 , R3 claim 2 , R4 claim 2 , R5 and R6 is independently selected from the group consisting of: CH claim 2 , CHCH claim 2 , CHCHCH claim 2 , CHCHCHCH claim 2 , CHCHF claim 2 , phenyl claim 2 , CH═CH claim 2 , OH claim 2 , epoxy claim 2 , carbinol claim 2 , methacrylate claim 2 , acrylate claim 2 , and H claim 2 , x is an integer in the range of 3-100 claim 2 , inclusive claim 2 , and y is absent or is an integer in the range of 1-1000 claim 2 , inclusive.5. The curable composition according to claim 1 , wherein for siloxane polymer (a): each R1 claim 1 , R2 claim 1 , R2′ claim 1 , R3 claim 1 , R4 claim 1 , R5 and R6 is independently selected from the group consisting of: CH claim 1 , OCH claim 1 , CHCH claim 1 , CH═CHand OH; x is an integer in the range of 100-2200 claim 1 , inclusive; y is absent or is an integer in the range of 1- ...

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