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WO2001079370A1 - A glass repair process - Google Patents

A glass repair process Download PDF

Info

Publication number
WO2001079370A1
WO2001079370A1 PCT/GB2001/001723 GB0101723W WO0179370A1 WO 2001079370 A1 WO2001079370 A1 WO 2001079370A1 GB 0101723 W GB0101723 W GB 0101723W WO 0179370 A1 WO0179370 A1 WO 0179370A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
adhesive
light
bonding
photoinitiator
Prior art date
Application number
PCT/GB2001/001723
Other languages
French (fr)
Inventor
John Walter Jackson
Original Assignee
John Walter Jackson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by John Walter Jackson filed Critical John Walter Jackson
Priority to AU48575/01A priority Critical patent/AU4857501A/en
Publication of WO2001079370A1 publication Critical patent/WO2001079370A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • 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
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C08F220/281—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer

Definitions

  • the present invention relates to a bonding system for repairing glass
  • UN adhesives are methacrylic resins which are cured using photoiniators based on benzophenone, ⁇ -hyroxyketones, ⁇ -amino-ketones or benzildimethyl-ketal which react to the ultraviolet part of the light spectrum, i.e. at a wavelength of approximately 360 nm.
  • the methacrylic resin is mixed with the photoinitiator and the resulting mix
  • a UN light is positioned over the area of the repair to activate the initiator and bring about curing
  • bevelled glass pieces are bonded to a glass substrate. It is an object of the present invention to provide a bonding system for
  • photoinitiator is an acyl phosphine oxide such as diphenyl (2,4,6-trimethylbenzoyl)
  • phosphine oxide CAS-no. 75980-60-8, also known by the trade name lucerin TPO.
  • the adhesive is a methacrylic adhesive, such as hydroxyethyl
  • the adhesive is flexible so that glass can freely expand and contract
  • the system of the present invention removes the need to use potentially
  • the present invention may also be used to laminate glass and produce automotive vehicle windscreens.
  • the invention solves the problem of the hazards associated with UN

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

A bonding system for repairing glass and for bonding pieces of glass together comprises an adhesive and a photoinitiator which is activated by light in the white/blue area of the spectrum.

Description

DESCRIPTION
"A GLASS REPAIR PROCESS"
The present invention relates to a bonding system for repairing glass and
for bonding pieces of glass together. It is known to repair chips and cracks in windscreens using ultra violet
(UN) adhesives. Typically, UN adhesives are methacrylic resins which are cured using photoiniators based on benzophenone, α-hyroxyketones, α-amino-ketones or benzildimethyl-ketal which react to the ultraviolet part of the light spectrum, i.e. at a wavelength of approximately 360 nm.
The methacrylic resin is mixed with the photoinitiator and the resulting mix
is applied to the crack or chip in the windscreen. After the mix has been suitably worked into the crack or chip to fill it and to blend in with the glass, a UN light is positioned over the area of the repair to activate the initiator and bring about curing
of the resin.
It will be appreciated that the use of UN light to bring about curing of the
adhesive represents a potential health hazard since careless and prolonged exposure to UN light can cause eye damage and the development skin cancers or
melanomas.
UN adhesives are also used for bonding glass as, for example, is required
in the manufacture of decorative glass inserts in which decoratively shaped
bevelled glass pieces are bonded to a glass substrate. It is an object of the present invention to provide a bonding system for
repairing and bonding glass which obviates or at least substantially mitigates the
health hazard posed by the use of UN adhesives.
According to a first aspect the present invention there is provided a bonding
system for repairing glass and for bonding pieces of glass together comprising an
adhesive and a photoinitiator which is activated by light in the white/blue area of
the spectrum.
It will be understood that by using a photoinitiator which is activated by
light in the white/blue area of the spectrum there is no risk of exposure to potentially hazardous UN light. This is a significant improvement on the conventional UN activated systems where, by virtue of the fact that the consequences of exposure to UN light are not felt immediately, users cannot be
relied upon to always follow good health and safety practices. Preferably, the
photoinitiator is an acyl phosphine oxide such as diphenyl (2,4,6-trimethylbenzoyl)
phosphine oxide, CAS-no. 75980-60-8, also known by the trade name lucerin TPO.
Preferably, the adhesive is a methacrylic adhesive, such as hydroxyethyl
methacrylate. These contain no glass particles making them optically clear. It is
preferable that the adhesive is flexible so that glass can freely expand and contract
without shattering.
The system of the present invention removes the need to use potentially
dangerous UN adhesives in the windscreen repair industry, the decorative glass
bonding industry and the aircraft canopy repair market. The present invention may also be used to laminate glass and produce automotive vehicle windscreens.
Moving the cure area of the chemicals into the safe blue/visible area of the
spectrum avoids the problems associated with the use of UN adhesives.
The invention solves the problem of the hazards associated with UN
systems by initiating curing of the adhesives using a photoinitiator which only
absorbs photons in the white/blue light area of the spectrum. This will mean that an operator working with the bonding system of the present invention need have no fear of exposure to potentially dangerous UN light.

Claims

1. A bonding system for repairing glass and for bonding pieces of
glass together comprising an adhesive and a photoinitiator which is activated by
light in the white/blue area of the spectrum.
2. A bonding system according to claim 1 , wherein the photoinitiator
is an acyl phosphine oxide.
3. A bonding system according to claim 2, wherein the initiator is
diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide, CAS-no. 75980-60-8.
4. A bonding system according to claim 1 , 2 or 3 , wherein the adhesive is a methacrylic adhesive.
5. A bonding system according to claim 4, wherein the adhesive is
hydroxyethyl methacrylate.
6. A method of repairing glass and for bonding pieces of glass together wherein an adhesive is mixed with a photoinitiator which is cured by light in the
white/blue area of the spectrum, the resulting mix is applied to the glass and is then
subjected to light in the white/blue area of the spectrum to activate the initiator and
bring about curing of the adhesive.
PCT/GB2001/001723 2000-04-14 2001-04-12 A glass repair process WO2001079370A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48575/01A AU4857501A (en) 2000-04-14 2001-04-12 A glass repair process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0009149.6A GB0009149D0 (en) 2000-04-14 2000-04-14 A glass repair process
GB0009149.6 2000-04-14

Publications (1)

Publication Number Publication Date
WO2001079370A1 true WO2001079370A1 (en) 2001-10-25

Family

ID=9889863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/001723 WO2001079370A1 (en) 2000-04-14 2001-04-12 A glass repair process

Country Status (3)

Country Link
AU (1) AU4857501A (en)
GB (1) GB0009149D0 (en)
WO (1) WO2001079370A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9308616B2 (en) 2013-01-21 2016-04-12 Innovative Finishes LLC Refurbished component, electronic device including the same, and method of refurbishing a component of an electronic device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841932A (en) * 1973-04-16 1974-10-15 C Forler Method and apparatus for repairing cracks in windshields
DD301304A5 (en) * 1989-06-08 1992-11-19 Jenoptik Jena Gmbh ELECTRONIC EVALUATION CIRCUIT FOR THE MAGNETIC INDUCTIVE HIT DISPLAY PROCEDURE
EP0548740A1 (en) * 1991-12-21 1993-06-30 Röhm Gmbh Light-currable polymeric adhesive based on methylmethacrylate
WO1994008788A1 (en) * 1992-10-13 1994-04-28 Loctite Corporation Lens blocking/deblocking method
JPH1161099A (en) * 1997-06-12 1999-03-05 Kansai Paint Co Ltd Repairing agent for glass

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841932A (en) * 1973-04-16 1974-10-15 C Forler Method and apparatus for repairing cracks in windshields
DD301304A5 (en) * 1989-06-08 1992-11-19 Jenoptik Jena Gmbh ELECTRONIC EVALUATION CIRCUIT FOR THE MAGNETIC INDUCTIVE HIT DISPLAY PROCEDURE
EP0548740A1 (en) * 1991-12-21 1993-06-30 Röhm Gmbh Light-currable polymeric adhesive based on methylmethacrylate
WO1994008788A1 (en) * 1992-10-13 1994-04-28 Loctite Corporation Lens blocking/deblocking method
JPH1161099A (en) * 1997-06-12 1999-03-05 Kansai Paint Co Ltd Repairing agent for glass

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9308616B2 (en) 2013-01-21 2016-04-12 Innovative Finishes LLC Refurbished component, electronic device including the same, and method of refurbishing a component of an electronic device

Also Published As

Publication number Publication date
GB0009149D0 (en) 2000-05-31
AU4857501A (en) 2001-10-30

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