Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
214 words
A gas permselective membrane which comprises a porous support having fine pores continuous in the thickness direction and a layer of a polymer laminated on the surface of said porous support, said polymer comprising a copolymer of (A) and (B), where (A) represents silarylene-siloxane structural units represented by the following general formula ##STR18## wherein R stands for an alkyl group having 1 to 10 carbon atoms, a phenyl group, a nucleus-substituted phenyl group having 6 to 20 carbon atoms, or a substituted alkyl group having 1 to 10 carbon atoms, Ar stands for ##STR19## and m is a number of from 5 to 8000, and wherein (B) represents diorganosiloxane structural units represented by the following general formula ##STR20## wherein R 1 and R 2 each independently stand for an alkyl group having 1 to 10 carbon atoms, a phenyl group, a nucleus-substituted phenyl group having 6 to 20 carbon atoms, a substituted alkyl group having 1 to 10 carbon atoms, a vinyl group, or an allyl group, and n is a number of from 1 to 2000, with the proviso that n/m is in the range of 0<n/m≦50, wherein the average pore size of said porous membrane is 0.001 to 1 μm and the thickness of said polymer layer is 0.01 to 1 μm.
Claim 2
Dependent Claim
214 words
A gas permselective membrane which comprises a porous support having fine pores continuous in the thickness direction and a layer of a polymer laminated on the surface of said porous support, said polymer comprising a copolymer of (A) and (B), where (A) represents silarylene-siloxane structural units represented by the following general formula ##STR18## wherein R stands for an alkyl group having 1 to 10 carbon atoms, a phenyl group, a nucleus-substituted phenyl group having 6 to 20 carbon atoms, or a substituted alkyl group having 1 to 10 carbon atoms, Ar stands for ##STR19## and m is a number of from 5 to 8000, and wherein (B) represents diorganosiloxane structural units represented by the following general formula ##STR20## wherein R 1 and R 2 each independently stand for an alkyl group having 1 to 10 carbon atoms, a phenyl group, a nucleus-substituted phenyl group having 6 to 20 carbon atoms, a substituted alkyl group having 1 to 10 carbon atoms, a vinyl group, or an allyl group, and n is a number of from 1 to 2000, with the proviso that n/m is in the range of 0<n/m≦50, wherein the average pore size of said porous membrane is 0.001 to 1 μm and the thickness of said polymer layer is 0.01 to 1 μm.
Claim 3
Dependent Claim
23 words
A gas permselective membrane as set forth in claim 1, wherein Ar is a ##STR21## and R is a group --CH 3 .
Claim 4
Dependent Claim
23 words
A gas permselective membrane as set forth in claim 1, wherein R 1 and R 2 stand for a group --CH 3 .
Claim 5
Dependent Claim
25 words
A gas permselective membrane as set forth in claim 1, wherein R 1 is a group --CH 3 , and R 2 is a ##STR22##
Claim 6
Dependent Claim
35 words
A gas permselective membrane as set forth in claim 1, wherein Ar is a ##STR23## R is a group --CH 3 , and R 1 and R 2 stand for a group --CH 3 .
Claim 7
Dependent Claim
36 words
A gas permselective membrane as set forth in claim 1, wherein Ar is a ##STR24## R is a group --CH 3 , R 1 is a group --CH 3 , and R 2 is a ##STR25##
Claim 8
Dependent Claim
35 words
A gas permselective membrane as set forth in claim 1, wherein m is a number of from 5 to 1000, n is a number of 1 to 2000, and n/m is the range of 1/100≦n/m≦50.
Claim 9
Dependent Claim
37 words
A gas permselective membrane as set forth in claim 1, wherein m is a number of from 5 to 500, n is a number of from 1 to 500, and n/m is in the range of 1/100≦n/m≦20.
Claim 10
Dependent Claim
27 words
A gas permselective membrane as set forth in claim 1, wherein the porous support is composed of a polysulfone resin, a polyether sulfone resin, or cellulose acetate.
Claim 11
Dependent Claim
24 words
A gas permselective membrane as set forth in claim 9, wherein the average pore size of the porous support is 0.005 to 0.05 μm.
Claim 12
Dependent Claim
24 words
A gas permselective membrane as set forth in claim 1, wherein the average pore size of the porous membrane is 0.005 to 0.05 μm.
Claim 13
Dependent Claim
22 words
A gas permselective membrane as set forth in claim 1, wherein the thickness of the polymer layer is 0.05 to 0.7 μm.
Claim 14
Dependent Claim
22 words
A gas permselective membrane as set forth in claim 1, wherein the thickness of the polymer layer is 0.1 to 0.5 μm.