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EP0263623A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of improving the adhesion between a coating on a glass article and a polyvinyl butyral material

Assignee: Ford-Werke GmbH
•
Filing: 1987-09-24
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Granted: —
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Expires: 2007-09-24
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Abstract

Abstract This specification is directed to a method of improving the adhesion between a coating (22) on a glass article (12) and a polyvinyl butyral material (26). the method includes the steps of subjecting the coating (22) on the glass article (12) to a coating operation in which a thin layer of chromium oxide (24) is placed over the coating (22). Thereafter, the chromium oxide (24) coated glass article (12) is subjected to a bonding operation which employs heat and pressure in order to bond the article (12) to the polyvinyl butyral material (26). In accordance with preferred teachings, the layer of chrom­ium oxide (24) has a thickness from about 25 angstroms to about 100 angstroms.

Inventors

  • 👤 Eurene Paul Pharms
  • 👤 Charles James Amberger
  • 👤 Ronald Ray Hymore

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 01:00
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10688; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10174; B32B17/10761; H; H05; H05B; H05B3/00; H05B3/84; H05B3/86; H05B2203/00; H05B2203/013

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 66 words
A method of improving the adhesion between a coating on a glass article and a polyvinyl butyral material which comprises the steps of subjecting the coating on the glass article to a coating operation in which a thin layer of chromium oxide is placed thereover and bonding said chromium oxide coated glass article to the polyvinyl butyral material in a bonding operation employing heat and pressure.
Claim 2
Independent Claim 66 words
A method of improving the adhesion between a coating on a glass article and a polyvinyl butyral material which comprises the steps of subjecting the coating on the glass article to a coating operation in which a thin layer of chromium oxide is placed thereover and bonding said chromium oxide coated glass article to the polyvinyl butyral material in a bonding operation employing heat and pressure.
Claim 3
Dependent Claim 23 words
A method as claimed in Claim 1, in which said layer of chromium oxide has a thickness from 25 angstroms to 100 angstroms.
Claim 4
Dependent Claim 33 words
A method as claimed in Claim 1 or 2, in which said glass article is a glass vision unit and said coating on the vision unit is a transparent and electrically conductive coating.
Claim 5
Dependent Claim 65 words
A method as claimed in Claim 3, in which bus bars are placed together with said conductive coating on a first glass sheet of said glass vision unit, and in said bonding operation a second glass sheet is bonded to said first glass sheet, the polyvinyl butyral material being interposed between said chromium, oxide coating on said first glass sheet and said second glass sheet.

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