US5364823A
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Method for manufacturing inorganic porous layered member
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1987-05-19
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Granted: 1994-11-15
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Expires: 2007-05-19
Abstract
Abstract This invention relates to a method for manufacturing an inorganic porous layered member which can maintain a sufficient distance between layers to show a high degree of heat insulating properties. In the manufacturing method for the inorganic porous layered member according to the present invention, an inorganic layered compound 12 having swelling charecteristics is swelled, and an inorganic pillar and an organic pillar are intercalated to form inorganic compound 16 between layers 14 of the inorganic layered compound 12. Fine gaps are thus formed in a wide range by the intercalation of the inorganic compound 16 between the layers 14 to maintain a sufficient distance between the layers 14, and the inorganic porous layered member 10 having high heat insulating properties is thus produced.
Inventors
- 👤 Koichi Takahama
- 👤 Shozo Hirao
- 👤 Masaru Yokoyama
- 👤 Takashi Kishimoto
- 👤 Hiroshi Yokokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:57
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/02; C04B14/04; C04B14/20; C04B14/206
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
109 words
A method for manufacturing an inorganic porous layered member wherein a swelling inorganic layered compound is swelled, and a pillar is intercalated between layers of the inorganic layered compound and dried to form fine gaps between the layers, and further wherein at least one inorganic pillar and at least one organic pillar are intercalated, said at least one inorganic pillar being obtained by carrying out a surface modification with at least one of cationic inorganic compound and metallic alcoholate in which said surface is positively charged or has its negative charge cancelled prior to said at least one inorganic pillar and said at least one organic pillar being intercalated.
Claim 2
Independent Claim
109 words
A method for manufacturing an inorganic porous layered member wherein a swelling inorganic layered compound is swelled, and a pillar is intercalated between layers of the inorganic layered compound and dried to form fine gaps between the layers, and further wherein at least one inorganic pillar and at least one organic pillar are intercalated, said at least one inorganic pillar being obtained by carrying out a surface modification with at least one of cationic inorganic compound and metallic alcoholate in which said surface is positively charged or has its negative charge cancelled prior to said at least one inorganic pillar and said at least one organic pillar being intercalated.
Claim 3
Dependent Claim
30 words
A method according to claim 1, wherein the inorganic pillar (16) before being modified is at least one of colloidal inorganic compound and a hydrolysis product of the metallic alcoholate.
Claim 4
Dependent Claim
28 words
A method according to claim 1, wherein the organic pillar (22) is at least one of water-soluble high polymer, quarternary ammonium salt, amphoteric surface-active agent and choline compound.
Claim 5
Dependent Claim
17 words
A method according to claim 1, wherein a calcining step is further carried out after the drying.
Claim 6
Dependent Claim
35 words
A method according to claim 1, wherein the gaps formed between the layers (14) is made to be 30 to 600Å in more than 40% of the whole of the inorganic porous layered member (10).
Claim 7
Dependent Claim
35 words
A method according to claim 1, wherein the inorganic layered compound (12) is at least one selected from a group consisting of Na-montmorillonite, Ca-montmorillonite, acid clay, 3-octahedron synthetic smectite, Na-hectorite, Li-hectorite, Na-taeniolite, Li-taeniolite and Na-Fluoro-Tetrasilicmica.
Claim 8
Dependent Claim
47 words
A method according to claim 1, wherein the cationic inorganic compound is at least one selected from a group consisting of a titanium compound, zirconium compound, hafnium compound, iron compound, copper compound, chromium compound, nickel compound, zinc compound, aluminium compound, manganese compound, phosporus compound and boron compound.
Claim 9
Dependent Claim
36 words
A method according to claim 1, wherein the metallic alcoholate forming the inorganic pillar is at least one selected from a group consisting of Ti(OR) 4 , Zr(OR) 4 , PO(OR) 3 and B(OR) 3 .
Claim 10
Dependent Claim
33 words
A method according to claim 2, wherein the metallic alcoholate forming the inorganic pillar is at least one selected from a group consisting of Si(OR) 4 , Al(OR) 3 and Ge(OR) 4 .
Claim 11
Dependent Claim
47 words
A method according to claim 2, wherein the colloidal inorganic compound is at least one selected from a group consisting of SiO 2 , Sb 2 O 3 , Fe 2 O 3 , Al 2 O 3 , TiO 2 ZrO 2 and SnO 2 .
Claim 12
Dependent Claim
38 words
A method according to claim 3, wherein the water-soluble high polymer is at least one selected from a group consisting of polyvinyl alcohol, polyethylene glycol, polyethylene oxide, methyl cellulose, carboxymethyl cellulose, polyacrylic acid, polyacrylic soda and polyvinyl pyrrolidone.
Claim 13
Dependent Claim
46 words
A method according to claim 3, wherein the quarternary ammonium salt is at least one selected from a group consisting of octadecyl trimethyl ammonium salt, dioctadecyl dimethyl ammonium salt, hexadecyl trimethyl ammonium salt, dihexadecyl dimethyl ammonium salt, tetradecyl trimethyl ammonium salt and ditetradecyl dimethyl ammonium salt.
Claim 14
Dependent Claim
71 words
A method according to claim 3, wherein the choline compound is at least one selected from a group consisting of [HOCH 2 CH 2 N(CH 3 ) 3 ] + OH - , C 5 H 14 ClNO, C 5 H 14 NOC 4 H 5 O 6 , C 5 H 14 NOC 6 H 7 O 7 and C 5 H 14 NOC 6 H 12 O 7 .
Claim 15
Dependent Claim
49 words
A method according to claim 3, wherein the amphoteric surface-active agent is one which is, in the cationic part, of aliphatic amine type and, in the anionic part, provided with at least one group selected from a group consisting of carboxyl group, sulfate group, sulfone group and phosphate group.
Claim 16
Dependent Claim
27 words
A method according to claim 2, wherein the organic pillar is at least one of water-soluble high polymer, quarternary ammonium salt, amphoteric surface-active agent and choline compound.
Claim 17
Dependent Claim
17 words
A method according to claim 2, wherein a calcining step is further carried out after the drying.
Claim 18
Dependent Claim
17 words
A method according to claim 3, wherein a calcining step is further carried out after the drying.
Claim 19
Dependent Claim
33 words
A method according to claim 2, wherein the gaps formed between the layers is made to be 30 to 600Å in more than 40% of the whole of the inorganic porous layered member.
Claim 20
Dependent Claim
33 words
A method according to claim 3, wherein the gaps formed between the layers is made to be 30 to 600Å in more than 40% of the whole of the inorganic porous layered member.
Claim 21
Dependent Claim
33 words
A method according to claim 4, wherein the gaps formed between the layers is made to be 30 to 600Å in more than 40% of the whole of the inorganic porous layered member.
Claim 22
Dependent Claim
34 words
A method according to claim 2, wherein the inorganic layered compound is at least one selected from a group consisting of Na-montmorillonite, Ca-montmorillonite, acid clay, 3-octahedron synthetic smectite, Na-hectorite, Li-hectorite, Na-taeniolite, Li-taeniolite and Na-Fluoro-Tetrasilicmica.
Claim 23
Dependent Claim
34 words
A method according to claim 3, wherein the inorganic layered compound is at least one selected from a group consisting of Na-montmorillonite, Ca-montmorillonite, acid clay, 3-octahedron synthetic smectite, Na-hectorite, Li-hectorite, Na-taeniolite, Li-taeniolite and Na-Fluoro-Tetrasilicmica.
Claim 24
Dependent Claim
34 words
A method according to claim 4, wherein the inorganic layered compound is at least one selected from a group consisting of Na-montmorillonite, Ca-montmorillonite, acid clay, 3-octahedron synthetic smectite, Na-hectorite, Li-hectorite, Na-taeniolite, Li-taeniolite and Na-Fluoro-Tetrasilicmica.
Claim 25
Dependent Claim
34 words
A method according to claim 5, wherein the inorganic layered compound is at least one selected from a group consisting of Na-montmorillonite, Ca-montmorillonite, acid clay, 3-octahedron synthetic smectite, Na-hectorite, Li-hectorite, Na-taeniolite, Li-taeniolite and Na-Fluoro-Tetrasilicmica.
Claim 26
Dependent Claim
47 words
A method according to claim 2, wherein the cationic inorganic compound is at least one selected from a group consisting of a titanium compound, zirconium compound, hafnium compound, iron compound, copper compound, chromium compound, nickel compound, zinc compound, aluminum compound, manganese compound, phosphorus compound and boron compound.
Claim 27
Dependent Claim
47 words
A method according to claim 3, wherein the cationic inorganic compound is at least one selected from a group consisting of a titanium compound, zirconium compound, hafnium compound, iron compound, copper compound, chromium compound, nickel compound, zinc compound, aluminum compound, manganese compound, phosphorus compound and boron compound.
Claim 28
Dependent Claim
47 words
A method according to claim 4, wherein the cationic inorganic compound is at least one selected from a group consisting of a titanium compound, zirconium compound, hafnium compound, iron compound, copper compound, chromium compound, nickel compound, zinc compound, aluminum compound, manganese compound, phosphorus compound and boron compound.
Claim 29
Dependent Claim
47 words
A method according to claim 5, wherein the cationic inorganic compound is at least one selected from a group consisting of a titanium compound, zirconium compound, hafnium compound, iron compound, copper compound, chromium compound, nickel compound, zinc compound, aluminum compound, manganese compound, phosphorus compound and boron compound.
Claim 30
Dependent Claim
47 words
A method according to claim 6, wherein the cationic inorganic compound is at least one selected from a group consisting of a titanium compound, zirconium compound, hafnium compound, iron compound, copper compound, chromium compound, nickel compound, zinc compound, aluminum compound, manganese compound, phosphorus compound and boron compound.
Claim 31
Dependent Claim
36 words
A method according to claim 2, wherein the metallic alcoholate forming the inorganic pillar is at least one selected from a group consisting of Ti(OR) 4 , Zr(OR) 4 , PO(OR) 3 and B(OR) 3 .
Claim 32
Dependent Claim
36 words
A method according to claim 3, wherein the metallic alcoholate forming the inorganic pillar is at least one selected from a group consisting of Ti(OR) 4 , Zr(OR) 4 , PO(OR) 3 and B(OR) 3 .
Claim 33
Dependent Claim
36 words
A method according to claim 4, wherein the metallic alcoholate forming the inorganic pillar is at least one selected from a group consisting of Ti(OR) 4 , Zr(OR) 4 , PO(OR) 3 and B(OR) 3 .
Claim 34
Dependent Claim
36 words
A method according to claim 5, wherein the metallic alcoholate forming the inorganic pillar is at least one selected from a group consisting of Ti(OR) 4 , Zr(OR) 4 , PO(OR) 3 and B(OR) 3 .
Claim 35
Independent Claim
122 words
A method for manufacturing an inorganic porous layered member wherein a swellable inorganic layered compound is swelled, and a plurality of pillars are intercalated between layers of said inorganic layered compound and dried to form fine gaps between the layers of from about 30 to about 600Å in greater than 40% of the whole of said inorganic porous layered member, and wherein said plurality of pillars comprises at least one organic pillar and at least one inorganic pillar obtained by carrying out a surface modification with at least one of metallic alcoholate and cationic inorganic compound in which said surface is positively charged or has its negative charge cancelled prior to said pillars and said layers of inorganic layered compound being intercalated.
Claim 36
Independent Claim
122 words
A method for manufacturing an inorganic porous layered member wherein a swellable inorganic layered compound is swelled, and a plurality of pillars are intercalated between layers of said inorganic layered compound and dried to form fine gaps between the layers of from about 30 to about 600Å in greater than 40% of the whole of said inorganic porous layered member, and wherein said plurality of pillars comprises at least one organic pillar and at least one inorganic pillar obtained by carrying out a surface modification with at least one of metallic alcoholate and cationic inorganic compound in which said surface is positively charged or has its negative charge cancelled prior to said pillars and said layers of inorganic layered compound being intercalated.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |