EP0629673A2
Expired / Lapsed
EP
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Water- and oil-repelling adsorbed film
Assignee: Panasonic Holdings Corp
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Filing: 1992-01-21
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Granted: —
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Expires: 2012-01-21
Abstract
Abstract A water- and oil-repelling adsorbing film (3) formed on a substrate surface (1), the adsorbing film being a chemically adsorbed film having surface irregularities, the chemically adsorbed film being bonded by covalent bonds to the substrate surface either directly or indirectly, the chemically adsorbed film being a monomolecular or polymer film with the molecules thereof containing a fluorocarbon group and a siloxane group, and the surface irregularities being due to fine particles formed on the substrate surface or due to fine particles present in the chemically adsorbed film, wherein the particles formed on the substrate surface and fine particles in the chemically adsorbed film are hydrophilic particles.
Inventors
- 👤 Kazufumi Ogawa
- 👤 Mamoru Soga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 04:07
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/056; B; B82; B82Y; B82Y30/00; C09; C09D; C09D183/00; C09D183/04; B05; B05D; B05D1/00; B05D1/18; B05D1/185; B82Y40/00; C03; C03C; C03C17/00; C03C17/34; C03C17/42; C08J7/042; C08J7/0423; C08J7/0427; C08J7/046; C08J7/054; C09D183/02; C09D183/08; C09D4/00; C03C2217/00; C03C2217/40; C03C2217/42; C03C2217/43; C03C2217/44; C03C2217/445; C03C2217/46; C03C2217/47; C03C2217/475; C03C2217/478; C03C2217/70; C03C2217/76; C08J2483/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/2438; Y10T428/24388; Y10T428/24421; Y10T428/24479; Y10T428/24521; Y10T428/25; Y10T428/252; Y10T428/259; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31652; Y10T428/31663; Y10T428/31667
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
105 words
A water- and oil-repelling adsorbing film formed on a substrate surface, said adsorbing film being a chemically adsorbed film having surface irregularities, said chemically adsorbed film being bonded by covalent bonds to said substrate surface either directly or indirectly, said chemically adsorbed film being a monomolecular or polymer film with the molecules thereof containing a fluorocarbon group and a siloxane group, and said surface irregularities being due to fine particles formed on the substrate surface or due to fine particles present in said chemically adsorbed film, wherein said particles formed on the substrate surface and fine particles in said chemically adsorbed film are hydrophilic particles.
Claim 2
Dependent Claim
37 words
The water- and oil-repelling adsorbing film according to claim 1, wherein said hydrophilic particles and said polymer with the molecule thereof containing a fluorocarbon group and a siloxane group are bonded to one another by covalent bonds.
Claim 3
Dependent Claim
30 words
The water- and oil-repelling adsorbing film according to claim 1, wherein the surface irregular chemically adsorbed film is bonded by covalent bonds of -SiO- or -SiN= to the substrate surface.
Claim 4
Dependent Claim
49 words
The water- and oil-repelling adsorbing film according to claim 1, which comprises a thin layer of polysiloxane or a thin layer of chemically adsorbed monomolecular layer of siloxane formed on the substrate surface and a surface irregular film formed on said thin layer or said chemically adsorbed monomolecular layer.
Claim 5
Dependent Claim
75 words
The water- and oil-repelling adsorbing film according to claim 1, wherein the substrate surface is provided with irregularities formed by particles and/or a coated layer incorporating silicate glass and having surface irregularities and a thin layer or a chemically adsorbed monomolecular layer with the molecules thereof containing a fluorocarbon group and a siloxane group, said surface irregular layer and said thin layer or chemically adsorbed monomolecular layer being bonded to each other by siloxane bonds.
Claim 6
Dependent Claim
33 words
The water- and oil-repelling adsorbing film according to claim 1, wherein said substrate is made of at least a member of a group consisting of glass, ceramics, metals, plastics, wood, stone and semiconductors.
Claim 7
Dependent Claim
36 words
The water- and oil-repelling adsorbing film according to one of claims 5 and 6, wherein the substrate surface is provided with irregularities at a level less than the wavelength of visible light, and which is anti-contaminating.
References Cited (Backward Citations)
No citation records indexed.
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