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EP0484746A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Chemically adsorbed monomolecular lamination film and method of manufacturing the same

Assignee: Panasonic Holdings Corp
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Filing: 1991-10-23
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Granted: —
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Expires: 2011-10-23
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Abstract

Abstract The invention to provide a chemically adsorbed monomolecular lamination film comprising a chemically adsorbed monomolecular film formed via a siloxane-based monomolecular or polymer film on a substrate surface. It also seeks to provide a method of forming a chemically adsorbed monomolecular film efficiently and with high density on a substrate surface with few hydroxyl groups, which method comprises a step of contacting a substrate containing hydroxyl groups present on the surface with a non-aqueous solution containing a material with plural chlorosilanol groups in molecule, a step of removing the material remaining on the substrate without reaction by washing the substrate with a non-aqueous organic solution (if this process is omitted, the siloxane-based polymer film is prepared on the substrate), a step of forming a monomolecular film constituted by a compound containing a silanol group in molecule on the substrate by exposing to the air containing moisture or washing with water, after the removal step, and a step of laminating a monomolecular adsorption film by adosorbing a chlorosilane-based surface active agent constituted by a straight hydrocarbon chain having a chlorosilane groups at one end onto the substrate after the monomolecular or polymer film formation step.

Inventors

  • 👤 Kazufumi Ogawa
  • 👤 Norihisa Mino
  • 👤 Mamoru Soga

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 18:52
CPC Classifications
B; B32; B32B; B32B27/00; C; C04; C04B; C04B41/00; C04B41/45; C04B41/52; B05; B05D; B05D1/00; B05D1/18; B05D1/185; B82; B82Y; B82Y30/00; B82Y40/00; B82Y5/00; C04B41/009; C04B41/80; C04B41/81; C04B41/89; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C09; C09D; C09D183/00; C09D183/04; C09D183/08; C09D4/00; C04B2111/00; C04B2111/00474; C04B2111/00965; C08J2483/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/261; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663; Y10T428/31667

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 30 words
A chemically adsorbed monomolecular lamination film comprising a siloxane-based film formed on a substrate surface by chemical bonding thereto and a chemically adsorbed monomolecular film formed on said siloxane-based film.
Claim 2
Dependent Claim 19 words
The chemically adsorbed monomolecular lamination film according to claim 1, wherein said siloxane-based film is a siloxane-based monomolecular film.
Claim 3
Dependent Claim 18 words
The chemically adsorbed monomolecular lamination film according to claim 1, wherein said chemically adsorbed monomolecular film contains fluorine.
Claim 4
Dependent Claim 40 words
The chemically adsorbed monomolecular lamination film according to claim 1, wherein the substrate surface and the siloxane-based monomolecular film are bonded with covalent bonds, and the siloxane-based monomolecular film and the chemically adsorbed monomolecular film are bonded with covalent bonds.
Claim 5
Dependent Claim 27 words
The chemically adsorbed monomolecular lamination film according to claim 1, wherein the substrate is made of a member of a group consisting of metals, ceramics and plastics.
Claim 6
Independent Claim 125 words
A method of manufacturing a chemically adsorbed monomolecular lamination film comprising: a step of contacting a substrate having hydroxyl groups on the surface with a non-aqueous solution containing a material having plural chlorosilane groups in molecule; a step of removing said material remaining on the substrate without reaction by washing the substrate using a non-aqueous organic solvent; a step of forming a siloxane-based film constituted with a compound containing a silanol group in molecule on the substrate by reacting the chlorosilane grouped with water after said removing step; and a step of laminating a adsorbed monomolecular film by adsorbing a chlorosilane-based surface active agent having a straight hydrocarbon chain and a chlorosilane group at one end onto the substrate after said siloxane-based film formation step.
Claim 7
Dependent Claim 30 words
The method of manufacturing a chemically adsorbed film lamination film according to claim 6, wherein the substrate is made of a member of a group consisting of metals and ceramics.
Claim 8
Dependent Claim 41 words
The method of manufacturing a chemically adsorbed monomolecular lamination film according to claim 6, wherein the substrate is a plastic substrate with the surface having been made hydrophilic in advance by a treatment in a plasma or corona atmosphere containing oxygen.
Claim 9
Dependent Claim 43 words
The method of manufacturing a chemically adsorbed monomolecular lamination film according to claim 6, wherein said material having a chlorosilyl group in molecule is a member of a group consisting of SiCl₄, SiHCl₃, SiH₂Cl₂ and Cl-(SiCl₂O) n -SiCl₃ where n is an integer.
Claim 10
Dependent Claim 32 words
The method of manufacturing a chemically adsorbed monomolecular lamination film according to claim 6, wherein the hydrocarbon chain of said chlorosilane-based surface active agent is partly substituted for by a -CF₂- group.
Claim 11
Independent Claim 102 words
The method of manufacturing a chemically adsorbed monomolecular lamination film according to one of claims 6 and 10, wherein said chlorosilane-based surface active agent is CF₃-(CF₂) n -(R) m -SiX p Cl 3-p where n represents 0 or an integer, R represents an alkyl group or a substitute group containing a C=C, a C≡C, a silicon atom or an oxygen atom, m represents 0 or 1, X represents a hydrogen atom or a substitute group in a group consisting of an alkyl group, an alkoxy group, a fluorine-containing alkyl group and a fluorine-containing alkoxy group, and p represents 0, 1 or 2.
Claim 12
Independent Claim 104 words
A method of manufacturing a chemically adsorbed monomolecular lamination film comprising: a step of contacting a substrate having hydroxyl groups on the surface with a non-aqueous solution containing a material having plural chlorosilane groups in molecule; a step of forming a siloxane-based film constituted with a compound containing a silanol group in molecule on the substrate by reacting the chlorosilane grouped with water after said removing step; and a step of laminating a adsorbed monomolecular film by adsorbing a chlorosilane-based surface active agent having a straight hydrocarbon chain and a chlorosilane group at one end onto the substrate after said siloxane-based film formation step.

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