WO2000050354A1 - Glass coating - Google Patents
Glass coating Download PDFInfo
- Publication number
- WO2000050354A1 WO2000050354A1 PCT/GB2000/000534 GB0000534W WO0050354A1 WO 2000050354 A1 WO2000050354 A1 WO 2000050354A1 GB 0000534 W GB0000534 W GB 0000534W WO 0050354 A1 WO0050354 A1 WO 0050354A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- acid
- solution
- glass
- glass surface
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/008—Temporary coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/355—Temporary coating
Definitions
- the present invention relates to the protection of glass and in particular to the protection of sheet glass. More particularly, the present invention relates to the protection of glass surfaces during storage and transportation.
- the present invention seeks to provide an improved method for protecting a glass surface by applying a stain- reducing amount of a polymeric solution to combat staining.
- the present invention provides a method for protecting a glass surface comprising: forming a solution in a liquid carrier of a polymer having acid groups; and applying the solution to the glass surface at an application rate of from about 40 to about 500mg of acid groups per square metre of glass surface' whereby to form a water soluble coating to reduce iridescence.
- the method of the invention is particularly useful in guarding against staining during storage or transportation of a glass article (eg a sheet), it is desirable that the solution is subsequently washed off with an aqueous solution (eg water) after storage or transportation.
- aqueous solution eg water
- Preferred acid groups are carboxyl (COOH) and sulphonic (HSO : J groups.
- Related carboxyl groups such as acyl substituent groups may also be useful eg anhydrides.
- the rate of application of the polymer is from about 50 to about 500 milligrams of acid groups per square metre of glass surface.
- the rate of application will be tailored to the climatic conditions (eg temperature and humidity) in which the glass surface is found. Generally speaking, in tropical conditions, application rates at the upper end of the range are preferred and in more temperate climates, the lower end is preferred.
- the rate of application may be measured by washing off the applied coating from a known area of glass (normally with distilled or demineralised water) and titrating against sodium or potassium hydroxide using an indicator (eg phenolphthalein indicator) .
- an indicator eg phenolphthalein indicator
- Equivalent weight of polyacrylic acid 72g
- the polymer has an acid value of 500mg/g or more, preferably 600mg/g or more.
- the acid value is in the range 500-1000mg/g, particularly preferably in the range 600-800mg/g.
- polyacrylic acid has an acid value of about 760mg/g KOH and polymethacrylic acid has an acid value of about 652mg/g KOH.
- the polymers for use in the invention may be homopolymers or heteropolymers .
- Preferred polymers are polymers of acrylic acid or methacrylic acid.
- polyacrylic acid or polymethacrylic acid may be used.
- Sulphonic acid functional derivates of polyolefins and polystyrene may also be suitable.
- co-monomers may be selected from the group consisting of acrolein, simple or branched alkyl (eg C 1 .
- the polymer may have a molecular weight between preferred upper and lower limits. The choice of these limits will be within the capabilities of the man skilled in the art. Nevertheless, below a molecular weight of about a few hundred there may be little or no film-forming effect.
- the upper limit of the molecular weight may be as high as several million. However, above a molecular weight of about 600,000, the polymer chains may be sufficiently sterically hindered in solution so as to lose their effective carboxyl or other concentration. In the downstream handling of the "glass stack" of which the glass surface is a part, it is desirable that the applied solution is capable of being washed off. This has an effect on the choice of the upper limit of the molecular weight range because as the molecular weight increases the ease of solubilisation decreases. Generally speaking, a preferred molecular weight range is 10,000 to 600, 000.
- the preferred polymers for use in the method of the invention are polymers of acrylic acid or methacrylic acid (eg polyacrylic acid or polymethacrylic acid) having molecular weights in the range of about 10,000 to about 600,000 and solution viscosities (in water or organic solvent) of about 12 to about 100 centipoises, at 5% polymer concentration and 25°C.
- acrylic acid or methacrylic acid eg polyacrylic acid or polymethacrylic acid
- solution viscosities in water or organic solvent
- the solution may be applied to the glass surface in any suitable manner.
- Surfactants may be present to assist wetting of the glass surface.
- De-foamers or anti-foamers may also be present to suppress the tendency to foam which may otherwise hinder the formation of a coating of the polymer on the glass surface.
- dyes may be present.
- Other optional ingredients may be used provided that they do not reduce the effect of the acid groups in the applied composition.
- the glass surface will be part of a sheet (eg a flat glass or float glass sheet) .
- the present invention provides a glass sheet having on at least one surface thereof a coating of a polymer solution having acid groups in sufficient concentration to reduce iridescence.
- the extent of coverage is 40 to about 500 milligrams of acid groups per square metre of glass surface.
- the glass sheet is obtainable by a method as hereinbefore defined.
- a formulation comprising:
- non-ionic surfactant (Nonidet LE - Shell)
- a formulation comprising:
- Ciba Speciality Chemicals at a concentration of 25wt% and a molecular weight of approximately 30,000
- non-ionic surfactant (Nonidet LE - Shell)
- a formulation comprising:
- non-ionic surfactant Nonidet LE - Shell
- O.lg cochineal dye Carmoisine - Supercook
- a formulation comprising:
- non-ionic surfactant Nonidet LE - Shell
- O.lg cochineal dye Carmoisine - Supercook
- a formulation comprising:
- non-ionic surfactant Nonidet LE - Shell
- O.lg cochineal dye Carmoisine - Supercook
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU25605/00A AU2560500A (en) | 1999-02-23 | 2000-02-18 | Glass coating |
JP2000600940A JP2002537215A (en) | 1999-02-23 | 2000-02-18 | Glass coating |
EP00903850A EP1159232A1 (en) | 1999-02-23 | 2000-02-18 | Glass coating |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9904122.0A GB9904122D0 (en) | 1999-02-23 | 1999-02-23 | Glass coating |
GB9904122.0 | 1999-02-23 | ||
GB9911344A GB2355419A (en) | 1999-02-23 | 1999-05-14 | Protecting glass against staining |
GB9911344.1 | 1999-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000050354A1 true WO2000050354A1 (en) | 2000-08-31 |
Family
ID=26315171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/000534 WO2000050354A1 (en) | 1999-02-23 | 2000-02-18 | Glass coating |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1159232A1 (en) |
JP (1) | JP2002537215A (en) |
CN (1) | CN1346337A (en) |
AU (1) | AU2560500A (en) |
WO (1) | WO2000050354A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002022516A1 (en) | 2000-09-11 | 2002-03-21 | Cardinal Cg Company | Temporary protective covers |
US6902813B2 (en) | 2001-09-11 | 2005-06-07 | Cardinal Cg Company | Hydrophilic surfaces carrying temporary protective covers |
US6921579B2 (en) | 2000-09-11 | 2005-07-26 | Cardinal Cg Company | Temporary protective covers |
FR2931474A1 (en) * | 2008-05-26 | 2009-11-27 | Saint Gobain | TEMPORARY PROTECTION OF GLASS. |
USRE43817E1 (en) | 2004-07-12 | 2012-11-20 | Cardinal Cg Company | Low-maintenance coatings |
US8697186B2 (en) | 2008-09-24 | 2014-04-15 | Saint-Gobain Glass France | Method for manufacturing a mask having submillimetric apertures for a submillimetric electrically conductive grid, and mask and submillimetric electrically conductive grid |
US9738967B2 (en) | 2006-07-12 | 2017-08-22 | Cardinal Cg Company | Sputtering apparatus including target mounting and control |
US10144841B2 (en) | 2013-08-05 | 2018-12-04 | Saint-Gobain Glass France | Substrate having a functional coating and a temporary protection layer |
US10273573B2 (en) | 2015-12-11 | 2019-04-30 | Cardinal Cg Company | Method of coating both sides of a substrate using a sacrificial coating |
WO2019122611A1 (en) | 2017-12-18 | 2019-06-27 | Saint-Gobain Glass France | Article comprising a functional coating and a temporary protective layer made of polyfuranic resin |
US10604442B2 (en) | 2016-11-17 | 2020-03-31 | Cardinal Cg Company | Static-dissipative coating technology |
WO2020234040A1 (en) | 2019-05-20 | 2020-11-26 | Agc Glass Europe | Coated substrate |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1125142A (en) * | 1964-08-31 | 1968-08-28 | Johnson & Son Inc S C | Coating composition |
US3577256A (en) * | 1969-06-26 | 1971-05-04 | Owens Illinois Inc | Scratch and abrasion resistant coatings for glass |
US4053666A (en) * | 1971-10-14 | 1977-10-11 | Owens-Illinois, Inc. | Recoverable, recyclable, and reusable composite container |
US4055441A (en) * | 1971-10-14 | 1977-10-25 | Owens-Illinois, Inc. | Process for recovering, recycling and reusing a composite container |
FR2543514A1 (en) * | 1983-04-01 | 1984-10-05 | Ppg Industries Inc | Soluble protective film |
US4489106A (en) * | 1982-09-29 | 1984-12-18 | Ppg Industries, Inc. | Two step interleaving method |
GB2145640A (en) * | 1983-08-26 | 1985-04-03 | Ucb Sa | Protecting vitreous articles with peelable polymers |
US4517242A (en) * | 1983-04-18 | 1985-05-14 | Wheaton Industries | Protective coating for dry heat sterilizable glassware |
DD276084A1 (en) * | 1988-09-26 | 1990-02-14 | Univ Schiller Jena | TEMPORARY PROTECTIVE LAYER FOR OPTICAL GLASSES AGAINST CORROSION AND SEALING |
WO1999024255A1 (en) * | 1997-11-12 | 1999-05-20 | Carmine Anthony Pagano | Composition for coating glass sheets |
-
2000
- 2000-02-18 AU AU25605/00A patent/AU2560500A/en not_active Abandoned
- 2000-02-18 EP EP00903850A patent/EP1159232A1/en not_active Withdrawn
- 2000-02-18 JP JP2000600940A patent/JP2002537215A/en active Pending
- 2000-02-18 WO PCT/GB2000/000534 patent/WO2000050354A1/en not_active Application Discontinuation
- 2000-02-18 CN CN 00804127 patent/CN1346337A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1125142A (en) * | 1964-08-31 | 1968-08-28 | Johnson & Son Inc S C | Coating composition |
US3577256A (en) * | 1969-06-26 | 1971-05-04 | Owens Illinois Inc | Scratch and abrasion resistant coatings for glass |
US4053666A (en) * | 1971-10-14 | 1977-10-11 | Owens-Illinois, Inc. | Recoverable, recyclable, and reusable composite container |
US4055441A (en) * | 1971-10-14 | 1977-10-25 | Owens-Illinois, Inc. | Process for recovering, recycling and reusing a composite container |
US4489106A (en) * | 1982-09-29 | 1984-12-18 | Ppg Industries, Inc. | Two step interleaving method |
FR2543514A1 (en) * | 1983-04-01 | 1984-10-05 | Ppg Industries Inc | Soluble protective film |
US4517242A (en) * | 1983-04-18 | 1985-05-14 | Wheaton Industries | Protective coating for dry heat sterilizable glassware |
GB2145640A (en) * | 1983-08-26 | 1985-04-03 | Ucb Sa | Protecting vitreous articles with peelable polymers |
DD276084A1 (en) * | 1988-09-26 | 1990-02-14 | Univ Schiller Jena | TEMPORARY PROTECTIVE LAYER FOR OPTICAL GLASSES AGAINST CORROSION AND SEALING |
WO1999024255A1 (en) * | 1997-11-12 | 1999-05-20 | Carmine Anthony Pagano | Composition for coating glass sheets |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch Week 199030, Derwent World Patents Index; Class A14, AN 1990-224956, XP002122794 * |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002022517A1 (en) | 2000-09-11 | 2002-03-21 | Cardinal Cg Company | Hydrophilic surfaces carrying temporary protective covers |
US6921579B2 (en) | 2000-09-11 | 2005-07-26 | Cardinal Cg Company | Temporary protective covers |
WO2002022516A1 (en) | 2000-09-11 | 2002-03-21 | Cardinal Cg Company | Temporary protective covers |
US6902813B2 (en) | 2001-09-11 | 2005-06-07 | Cardinal Cg Company | Hydrophilic surfaces carrying temporary protective covers |
US7309527B2 (en) | 2001-09-11 | 2007-12-18 | Cardinal Cg Company | Hydrophilic surfaces carrying temporary protective covers |
USRE43817E1 (en) | 2004-07-12 | 2012-11-20 | Cardinal Cg Company | Low-maintenance coatings |
USRE44155E1 (en) | 2004-07-12 | 2013-04-16 | Cardinal Cg Company | Low-maintenance coatings |
US9738967B2 (en) | 2006-07-12 | 2017-08-22 | Cardinal Cg Company | Sputtering apparatus including target mounting and control |
EA019017B1 (en) * | 2008-05-26 | 2013-12-30 | Сэн-Гобэн Гласс Франс | Glass substrate |
WO2009153490A2 (en) * | 2008-05-26 | 2009-12-23 | Saint-Gobain Glass France | Temporary protection of glass |
FR2931474A1 (en) * | 2008-05-26 | 2009-11-27 | Saint Gobain | TEMPORARY PROTECTION OF GLASS. |
WO2009153490A3 (en) * | 2008-05-26 | 2010-02-18 | Saint-Gobain Glass France | Temporary protection of glass |
US8697186B2 (en) | 2008-09-24 | 2014-04-15 | Saint-Gobain Glass France | Method for manufacturing a mask having submillimetric apertures for a submillimetric electrically conductive grid, and mask and submillimetric electrically conductive grid |
US11028283B2 (en) | 2013-08-05 | 2021-06-08 | Saint-Gobain Glass France | Substrate having a functional coating and a temporary protection layer |
US10144841B2 (en) | 2013-08-05 | 2018-12-04 | Saint-Gobain Glass France | Substrate having a functional coating and a temporary protection layer |
US10676633B2 (en) | 2013-08-05 | 2020-06-09 | Saint-Gobain Glass France | Substrate having a functional coating and a temporary protection layer |
US10273573B2 (en) | 2015-12-11 | 2019-04-30 | Cardinal Cg Company | Method of coating both sides of a substrate using a sacrificial coating |
US10604442B2 (en) | 2016-11-17 | 2020-03-31 | Cardinal Cg Company | Static-dissipative coating technology |
US11325859B2 (en) | 2016-11-17 | 2022-05-10 | Cardinal Cg Company | Static-dissipative coating technology |
WO2019122611A1 (en) | 2017-12-18 | 2019-06-27 | Saint-Gobain Glass France | Article comprising a functional coating and a temporary protective layer made of polyfuranic resin |
US11591259B2 (en) | 2017-12-18 | 2023-02-28 | Saint-Gobain Glass France | Article comprising a functional coating and a temporary protective layer made of polyfuranic resin |
WO2020234040A1 (en) | 2019-05-20 | 2020-11-26 | Agc Glass Europe | Coated substrate |
Also Published As
Publication number | Publication date |
---|---|
AU2560500A (en) | 2000-09-14 |
JP2002537215A (en) | 2002-11-05 |
EP1159232A1 (en) | 2001-12-05 |
CN1346337A (en) | 2002-04-24 |
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