1. A process for manufacturing an ionelectron-conducting composite polymer membrane, comprising at least two gas-tight ion-conducting polymer portions joined together directly by a gas-tight electron-conducting polymer portion, wherein the process comprises:
a) depositing an electron-conductive material in the pores of a porous matrix composed of a polymer and comprising at least two portions intended to be filled with an ion conductor, joined together directly by a portion intended to be filled with an electron-conductive material, this deposition being limited to the portion of the porous matrix intended to be filled with the electron-conductive material;
b) applying, to the portion of the porous matrix filled with the electron-conductive material, a treatment for obtaining the softening of the polymer that forms this matrix portion and the blocking of the pores of said matrix portion by deformation of the thus softened polymer; and
c) filling, with an ion-conductive material, the porous matrix portions intended to be filled with the ion-conductive material.
2. Process according to claim 1, in which the porous matrix is composed of a polymer devoid of any intrinsic ion-conducting property.
3. The process according to claim 1, wherein the electron-conductive material is deposited by chemical vapour deposition (CVD), by physical vapour deposition (PVD) or by an \u201celectroless\u201d process.
4. The process according to claim 1, wherein the treatment for softening the polymer is a heat treatment, an ultrasound treatment or a high-frequency radiation treatment.
5. The process according to claim 1, wherein the filling, with an ion-conductive material, of the porous matrix portions intended to be filled with the ion-conductive material is carried out by impregnating these portions with a solution containing the ion-conductive material in a solvent.
6. The process according to claim 1, wherein the filling, with an ion-conductive material, of the porous matrix portions intended to be filled with the ion-conductive material is carried out by impregnating these portions with a solution containing a precursor of the ion-conductive material in a solvent, then by secondarily applying, to said portions, a treatment to induce the conversion of this precursor to said ion-conductive material.
7. The process according to claim 1, wherein the filling, with an ion-conductive material, of the porous matrix portions intended to be filled with the ion-conductive material is carried out by depositing, on these porous matrix portions, the ion-conductive material in the form of a film, then by secondarily applying, to said portions, a treatment for melting this film and thus infiltrating the ion-conductive material into said porous matrix portions.
8. A process for manufacturing an ionelectron-conducting composite polymer membrane, comprising at least two gas-tight ion-conducting polymer portions joined together directly by a gas-tight electron-conducting polymer portion, which process comprises:
a) depositing an electron-conductive material in the pores of a porous matrix composed of a polymer and comprising at least two portions intended to be filled with an ion-conductive material and at least a portion intended to be filled with an electron-conductive material, this deposition being limited to the portion of the porous matrix intended to be filled with the electron-conductive material;
b) filling, with an ion-conductive material, the porous matrix portions intended to be filled with the ion-conductive material, and
c) applying, to the portion of the porous matrix filled with the electron-conductive material, a treatment for obtaining the softening of the polymer that forms this matrix portion and the blocking of the pores of said matrix portion by deformation of the thus softened polymer.
9. The process according to claim 8, wherein the porous matrix is composed of a polymer devoid of any intrinsic ion-conducting property.
10. The process according to claim 8, wherein the electron-conductive material is deposited by chemical vapour deposition (CVD), by physical vapour deposition (PVD) or by an \u201celectroless\u201d process.
11. The process according to claim 8, wherein the treatment for softening the polymer is a heat treatment, an ultrasound treatment or a high-frequency radiation treatment.
12. The process according to claim 8, wherein the filling, with an ion-conductive material, of the porous matrix portions intended to be filled with the ion-conductive material is carried out by impregnating these portions with a solution containing the ion-conductive material in a solvent.
13. The process according to claim 8, wherein the filling, with an ion-conductive material, of the porous matrix portions intended to be filled with the ion-conductive material is carried out by impregnating these portions with a solution containing a precursor of the ion-conductive material in a solvent, then by secondarily applying, to said portions, a treatment to induce the conversion of this precursor to said ion-conductive material.
14. The process according to claim 8, wherein the filling, with an ion-conductive material, of the porous matrix portions intended to be filled with the ion-conductive material is carried out by depositing, on these porous matrix portions, the ion-conductive material in the form of a film, then by secondarily applying, to said portions, a treatment for melting this film and thus infiltrating the ion-conductive material into said porous matrix portions.
15. A process for manufacturing an ionelectron-conducting composite polymer membrane, comprising at least two gas-tight ion-conducting polymer portions joined together directly by a gas-tight electron-conducting polymer portion, which process comprises:
a) depositing an electron-conductive material in the pores of a porous matrix composed of a polymer;
b) cutting the porous matrix filled with an electron-conductive material into a plurality of segments;
c) forming a composite polymer membrane by inserting one of the segments obtained in step b) between at least two gas-tight ion-conducting polymer segments and firmly joining these segments together; and
d) applying, to the segment of porous matrix filled with the electron-conductive material present in the composite polymer membrane obtained in step c), a treatment for obtaining the softening of the polymer that forms this matrix segment and the blocking of the pores of said matrix segment by deformation of the thus softened polymer.
16. The process according to claim 15, wherein the ion-conducting polymer segments are obtained by cutting a porous matrix composed of an intrinsically ion-conductive polymer or of a polymer devoid of any intrinsic ion-conducting property that is made ion-conductive by incorporation of an ion-conductive material.
17. The process according to claim 15, wherein the firm attachment of the segments is carried out by hot pressing.
18. The process according to claim 15, wherein the porous matrix is composed of a polymer devoid of any intrinsic ion-conducting property.
19. The process according to claim 15, wherein the electron-conductive material is deposited by chemical vapour deposition (CVD), by physical vapour deposition (PVD) or by an \u201celectroless\u201d process.
20. The process according to claim 15, wherein the treatment for softening the polymer is a heat treatment, an ultrasound treatment or a high-frequency radiation treatment.
21. A process for manufacturing an ionelectron-conducting composite polymer membrane, comprising at least two gas-tight ion-conducting polymer portions joined together directly by a gas-tight electron-conducting polymer portion, which process comprises:
a) depositing an electron-conductive material in the pores of a porous matrix composed of a polymer;
b) applying, to the porous matrix, a treatment for obtaining the softening of the polymer which forms it and the blocking of the pores of this matrix by deformation of the thus softened polymer;
c) cutting the matrix obtained in step b) into a plurality of segments; and
d) forming a composite polymer membrane by inserting one of these segments obtained in step c) between at least two gas-tight ion-conducting polymer segments and firmly joining these segments together.
22. The process according to claim 21, wherein the porous matrix, is composed of a polymer devoid of any intrinsic ion-conducting property.
23. The process according to claim 21, wherein the electron-conductive material is deposited by chemical vapour deposition (CVD), by physical vapour deposition (PVD) or by an \u201celectroless\u201d process.
24. The process according to claim 21, wherein the treatment for softening the polymer is a heat treatment, an ultrasound treatment or a high-frequency radiation treatment.
25. The process according to claim 21, wherein the ion-conducting polymer segments are obtained by cutting a porous matrix composed of an intrinsically ion-conductive polymer or of a polymer devoid of any intrinsic ion-conducting property that is made ion-conductive by incorporation of an ion-conductive material.
26. The process according to claim 21, wherein the firm attachment of the segments is carried out by hot pressing.
27. A process for manufacturing an ionelectron-conducting composite polymer membrane, comprising at least two gas-tight ion-conducting polymer portions joined together directly by a gas-tight electron-conducting polymer portion, which process comprises:
a) depositing an electron-conductive material in the pores of a porous matrix composed of an intrinsically ion-conductive polymer and comprising at least two portions intended to remain ion-conductive, joined together directly by a portion intended to be filled with an electron-conductive material, this deposition being limited to the portion of the porous matrix intended to be filled with the electron-conductive material; and
b) applying, to the porous matrix, a treatment for obtaining the softening of the polymer that forms this matrix and the blocking of the pores of said matrix by deformation of the thus softened polymer.
28. The process according to claim 27, wherein the electron-conductive material is deposited by chemical vapour deposition (CVD), by physical vapour deposition (PVD) or by an \u201celectroless\u201d process.
29. The process according to claim 27, wherein the treatment for softening the polymer is a heat treatment, an ultrasound treatment or a high-frequency radiation treatment.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A sanitary napkin comprising:
a liquid-permeable top sheet;
a back sheet; and
an absorbent core sandwiched between said top sheet and back sheet,
wherein said back sheet is formed of a resin film containing an inorganic filler in a resin base material, and
wherein said back sheet includes;
a stretched moisture permeable region; and
a high optical transmittance region having a lower degree of orientation than said moisture-permeable region andor left unstretched,
wherein said sanitary napkin includes a pair of wing portions extending outwardly from both sides of said absorbent core in the latitudinal direction,
wherein said back sheet is divided into three regions: one moisture-permeable region located centrally of said absorbent core; and two high optical transmittance regions located on both sides of said moisture-permeable region to cover said wing portions.
2. A sanitary napkin comprising:
a liquid-permeable top sheet;
a back sheet; and
an absorbent core sandwiched between said top sheet and back sheet,
wherein said back sheet is formed of a resin film containing an inorganic filler in a resin base material, and
wherein said back sheet includes;
a stretched moisture-permeable region; and
a high optical transmittance region having a lower degree of orientation than said moisture-permeable region andor left unstretched,
wherein said moisture-permeable region extends entirely across the absorbent core with a constant width along a longitudinal or latitudinal center thereof,
wherein said a sanitary napkin includes a pair of wing portions extending outwardly from both sides of said absorbent core in the latitudinal direction,
wherein said back sheet is divided into three regions; one moisture-permeable region located centrally of said absorbent core; and two high optical transmittance regions located on both sides of said moisture-permeable region to cover said wing portions.