Method for forming tin oxide coating

• US 4,500,567 A
• Filed: 12/19/1983
• Issued: 02/19/1985
• Est. Priority Date: 12/23/1982
• Status: Expired due to Term

• Current Assignee: Nippon Sheet Glass Company Limited
• Original Assignee: Nippon Sheet Glass Company Limited
• Inventors: Kawahara, Hideo, Kato, Yukihiro, Hyohdou, Masato
• Primary Examiner(s): Childs, S. L.
• Application Number:
  US06/562,726
• Time in Patent Office: 428 Days
• Field of Search: 427/109, 427/85, 427/126.2, 427/87, 427/126.3, 427/166, 427/226, 427/248.1, 427/255.2, 427/255.3, 427/255, 427/314, 65/60.52
• US Class Current: 427/255.35
• CPC Class Codes: C03C 17/2453 Coating containing SnO2
• CPC Class Codes: C04B 41/5025 with ceramic materials copper oxide or solid solutions thereof C04B41/5074
• CPC Class Codes: C04B 41/87 Ceramics
• CPC Class Codes: C23C 16/407 of zinc, germanium, cadmium, indium, tin, thallium or bismuth

Abstract

A method for forming a fluorine-containing tin oxide coating on the surface of a substrate which comprises contacting the heated surface of the substrate with a vapor of monobutyltin trichloride or a mixed vapor of monobutyltin trichloride and a doping agent composed of a fluorine-containing compound of the following formula

XCHF.sub.2

wherein X represents a fluorine atom, a chlorine atom, or a hydrocarbon group consisting only of carbon and hydrogen atoms,

to oxidize and decompose the vapor or the mixed vapor thermally and deposit tin oxide or fluorine-containing tin oxide respectively thereon.

Claims

1. In a method for forming a fluorine-containing tin oxide coating on the surface of a substrate selected from the group consisting of glass, ceramics and metals which comprises contacting the heated surface of the substrate with a mixed vapor of a tin compound and a doping agent composed of a fluorine-containing compound to oxidize and decompose the mixed vapor thermally and deposit fluorine-containing tin oxide thereon;

the improvement wherein monobutyltin trichloride is used as the tin compound, and a fluorine compound of the following formula

space="preserve" listing-type="equation">XCHF.sub.2

wherein X represents a fluorine atom, a chlorine atom, or a hydrocarbon group consisting only of carbon and hydrogen atoms, is used as the doping agent.

2. The method of claim 1 wherein the doping agent is trifluoromethane or monochlorodifluoromethane.

3. The method of claim 1 wherein the doping agent is a 1,1-difluoroalkane having 2 to 4 carbon atoms.

4. The method of claim 3 wherein the 1,1-difluoroalkane is 1,1-difluoroethane.