US5234718A
Expired / Lapsed
US
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Method of manufacturing a chemically adsorbed film
Assignee: Panasonic Holdings Corp
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Filing: 1992-02-18
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Granted: 1993-08-10
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Expires: 2012-02-18
Abstract
Abstract A method of manufacturing a chemically adsorbed monomolecular or polymer film by a dehydrochlorination reaction brought about by contacting a substrate having hydrophilic groups at the surface with a non-aqueous organic solvent containing a compound having a halogen-based functional group able to react with a hydrophilic group at one end is disclosed. A basic compound is present in the non-aqueous organic solvent. Molecules having a functional group able to react with a hydrophilic group at one end are dissolved in the solvent obtained by adding the basic compound to the non-aqueous organic solvent. The substrate is contacted with the solution to form a chemically adsorbed monomolecular or polymer film. The film is formed efficiently and in a short period of time.
Inventors
- 👤 Norihisa Mino
- 👤 Yoshikazu Yamagata
- 👤 Kazufumi Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:04
CPC Classifications
C; C09; C09D; C09D4/00; B; B05; B05D; B05D1/00; B05D1/18; B05D1/185; B82; B82Y; B82Y30/00; B82Y40/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
115 words
A method of forming a chemically adsorbed monomolecular film on the surface of a substrate, wherein the surface of the substrate contains active hydrogen groups, the method comprising: (A) preparing a chemical adsorbing material solution by dissolving a chemical adsorbing material in a non-aqueous organic solvent, said chemical adsorbing material having halogen-based functional molecular groups capable of reacting with the active hydrogen groups on the substrate surface, wherein a basic compound is present in said non-aqueous organic solvent; (B) dipping the substrate in said chemical adsorbing material solution, thereby adsorbing the chemical adsorbing material to the substrate surface; and (C) washing non-reacted chemical adsorbing material away from the substrate surface using a non-aqueous organic solution.
Claim 2
Independent Claim
115 words
A method of forming a chemically adsorbed monomolecular film on the surface of a substrate, wherein the surface of the substrate contains active hydrogen groups, the method comprising: (A) preparing a chemical adsorbing material solution by dissolving a chemical adsorbing material in a non-aqueous organic solvent, said chemical adsorbing material having halogen-based functional molecular groups capable of reacting with the active hydrogen groups on the substrate surface, wherein a basic compound is present in said non-aqueous organic solvent; (B) dipping the substrate in said chemical adsorbing material solution, thereby adsorbing the chemical adsorbing material to the substrate surface; and (C) washing non-reacted chemical adsorbing material away from the substrate surface using a non-aqueous organic solution.
Claim 3
Dependent Claim
27 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1, wherein said basic compound present in said non-aqueous organic solvent is a dehydrating solvent.
Claim 4
Dependent Claim
26 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1 or 2, wherein said basic compound comprises a tertiary amine or anhydrous carbonate.
Claim 5
Dependent Claim
21 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 3, wherein the tertiary amine is pyridine or dimethylaniline.
Claim 6
Dependent Claim
28 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 3, wherein the anhydrous carbonate is anhydrous calcium carbonate, anhydrous sodium carbonate, or anhydrous potassium carbonate.
Claim 7
Dependent Claim
35 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1, wherein the concentration of said basic compound in said non-aqueous organic solvent is in a range of 10 -3 to 1 mol/l.
Claim 8
Dependent Claim
56 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1, wherein said molecular groups of said chemical adsorbing material comprise at least one member selected from the group consisting of a halogenated silyl (--SiX) group, a halogenated titanyl (--TiX) group, a halogenated stannyl (--SnX) group, where X represents chlorine, bromine, fluorine or iodine.
Claim 9
Dependent Claim
29 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1, wherein said chemical adsorbing material comprises an end functional chlorosilyl (--SiCl) group and a fluorocarbon group.
Claim 10
Dependent Claim
37 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1, wherein the concentration of said chemical adsorbing material in said non-aqueous organic solvent is in a range of 10 -4 to 10 -1 mol/l.
Claim 11
Dependent Claim
30 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1, wherein the substrate comprises material selected from the group consisting of glass, metals, ceramics, plastics and semiconductors.
Claim 12
Dependent Claim
22 words
The method of manufacturing a chemically adsorbed monomolecular film according to claim 1, wherein the substrate is an oxidation treated plastic substrate.
Claim 13
Independent Claim
138 words
A method of forming a chemically adsorbed polymer film on the surface of a substrate, wherein the surface of the substrate contains active hydrogen groups, the method comprising: (a) preparing a chemical adsorbing material solution by dissolving a chemical adsorbing material in a non-aqueous organic solvent, said chemical adsorbing material having halogen-based functional molecular groups capable of reacting with the active hydrogen groups on the substrate surface, wherein a basic compound is present in said non-aqueous organic solvent; (b) dipping the substrate in said chemical adsorbing material solution in a dry atmosphere, thereby adsorbing the chemical adsorbing material to the substrate surface; (c) forming on the substrate an adsorbed precursor film having a compound containing a silanol group by reacting a halogen-based functional molecular group with water after the dipping step; and (d) drying said adsorbed precursor film.
Claim 14
Independent Claim
138 words
A method of forming a chemically adsorbed polymer film on the surface of a substrate, wherein the surface of the substrate contains active hydrogen groups, the method comprising: (a) preparing a chemical adsorbing material solution by dissolving a chemical adsorbing material in a non-aqueous organic solvent, said chemical adsorbing material having halogen-based functional molecular groups capable of reacting with the active hydrogen groups on the substrate surface, wherein a basic compound is present in said non-aqueous organic solvent; (b) dipping the substrate in said chemical adsorbing material solution in a dry atmosphere, thereby adsorbing the chemical adsorbing material to the substrate surface; (c) forming on the substrate an adsorbed precursor film having a compound containing a silanol group by reacting a halogen-based functional molecular group with water after the dipping step; and (d) drying said adsorbed precursor film.
Claim 15
Dependent Claim
27 words
The method of manufacturing a chemically adsorbed polymer film according to claim 12, wherein said basic compound present in said non-aqueous organic solvent is a dehydrating compound.
Claim 16
Dependent Claim
26 words
The method of manufacturing a chemically adsorbed polymer film according to claim 12 or 13, wherein said basic compound comprises a tertiary amine or anhydrous carbonate.
Claim 17
Dependent Claim
21 words
The method of manufacturing a chemically adsorbed polymer film according to claim 14, wherein the tertiary amine is pyridine or dimethylaniline.
Claim 18
Dependent Claim
28 words
The method of manufacturing a chemically adsorbed polymer film according to claim 14, wherein the anhydrous carbonate is anhydrous calcium carbonate, anhydrous sodium carbonate, or anhydrous potassium carbonate.
Claim 19
Dependent Claim
35 words
The method of manufacturing a chemically adsorbed polymer film according to claim 12, wherein the concentration of said basic compound in said non-aqueous organic solvent is in a range of 10 -3 to 1 mol/l.
Claim 20
Dependent Claim
58 words
The method of manufacturing a chemically adsorbed polymer film according to claim 12, wherein said halogen-based functional molecular group of said chemical adsorbing material comprise at least one member selected from the group consisting of a halogenated silyl (--SiX) group, a halogenated titanyl (--TiX) group, a halogenated stannyl (--SnX) group, where X represents chlorine, bromine, fluorine or iodine.
Claim 21
Dependent Claim
29 words
The method of manufacturing a chemically adsorbed polymer film according to claim 18, wherein said chemical adsorbing material comprises an end functional chlorosilyl (--SiCl) group and a fluorocarbon group.
Claim 22
Dependent Claim
37 words
The method of manufacturing a chemically adsorbed polymer film according to claim 12, wherein the concentration of said chemical adsorbing material in said non-aqueous organic solvent is in a range of 10 -4 to 10 -1 mol/l.
Claim 23
Dependent Claim
30 words
The method of manufacturing a chemically adsorbed polymer film according to claim 12, wherein the substrate comprises material selected from the group consisting of glass, metals, ceramics, plastics and semiconductors.
Claim 24
Dependent Claim
22 words
The method of manufacturing a chemically adsorbed polymer film according to claim 12, wherein the substrate is an oxidation treated plastic substrate.
References Cited (Backward Citations)
US4199330A
Cited
US4243701A
Cited
US4539061A
Cited
US4751171A
Cited
US4968524A
Cited
EP0386784A2
Cited
EP0492417A2
Cited
US5143750A
Cited
EP0492545A2
Cited
EP0499977A1
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
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