DK155495B - GLASS TOP FOR EYE PROTECTION - Google Patents

GLASS TOP FOR EYE PROTECTION Download PDF

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Publication number
DK155495B
DK155495B DK311976AA DK311976A DK155495B DK 155495 B DK155495 B DK 155495B DK 311976A A DK311976A A DK 311976AA DK 311976 A DK311976 A DK 311976A DK 155495 B DK155495 B DK 155495B
Authority
DK
Denmark
Prior art keywords
layer
glass
plastic
dan
eyes
Prior art date
Application number
DK311976AA
Other languages
Danish (da)
Other versions
DK311976A (en
DK155495C (en
Inventor
Hans Heuser
Original Assignee
Saint Gobain
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 Saint Gobain filed Critical Saint Gobain
Publication of DK311976A publication Critical patent/DK311976A/en
Publication of DK155495B publication Critical patent/DK155495B/en
Application granted granted Critical
Publication of DK155495C publication Critical patent/DK155495C/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • A61F9/022—Use of special optical filters, e.g. multiple layers, filters for protection against laser light or light from nuclear explosions, screens with different filter properties on different parts of the screen; Rotating slit-discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10073—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising at least two glass sheets, neither of which being an outer layer
    • 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
    • C03C17/322—Polyurethanes or polyisocyanates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2551/00—Optical elements

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ophthalmology & Optometry (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass (AREA)
  • Eyeglasses (AREA)
  • Optical Filters (AREA)

Description

DK 155495 BDK 155495 B

Opfindelsen angår et glasemne til beskyttelse af øjnene og af den art, der omfatter mindst én plade af silikatglas, hvoraf den ene mod brugerens øje vendende side har et lag af svagt tværbundet, transparent polyurethanlag, der har en høj elastisk deformationsevne med forlængelse før brug på over 60% ved et permanent plastisk deformationsforhold på under 2% og et elasticitetsmodul på under 2000 daN/cm . Der kan være tale om briller, masker eller skærme.BACKGROUND OF THE INVENTION The invention relates to a glass blank for the protection of the eyes and of the type comprising at least one sheet of silicate glass, one of which facing the user's eye has a layer of slightly cross-linked, transparent polyurethane layer having a high elastic deformation capability with extension before use on over 60% at a permanent plastic deformation ratio of less than 2% and a modulus of elasticity of less than 2000 daN / cm. These may be glasses, masks or screens.

Ifølge opfindelsen er glasemnet ejendommeligt ved, at der på den bort fra øjnene vendende side af glasemnet også findes et polyurethanlag af i hovedsagen samme beskaffenhed som førstnævnte lag.According to the invention, the glass blank is characterized in that on the side facing the eyes of the glass blank there is also a polyurethane layer of substantially the same nature as the first layer.

Et sådant polyurethan udviser den egenskab, at overfladerids- 2Such polyurethane exhibits the property that surface scratch 2

DK 155495BDK 155495B

ninger hurtigt forsvinder af sig selv, således at det genvinder sit oprindelige udseende.things quickly disappear by themselves, so that it regains its original appearance.

Hovedfordelen ved sådanne glasemner er, at man dels som beskyttelsesglas kan anvende mineralsk glas med de velkendte egenskaber, dels opnår - i det tilfælde, hvor glasset går i stykker -at glasskår tilbageholdes af plastlaget, som desuden ikke er følsomt over for ridsninger, fordi det er selvhelende, hvorfor det bløde lag ikke behøver et yderligere beskyttelseslag. Det bløde, selvhelende lag kan eksempelvis have en tykkelse på 0,1 til 1 mm, fortrinsvis på 0,2 til 0,5 mm.The main advantage of such glassware is that it is possible to use, as protective glass, mineral glass with the well-known properties, and partly obtains - in the case where the glass breaks - that glass shards are retained by the plastic layer, which is also not sensitive to scratches because it is self-healing, which is why the soft layer does not need an additional protective layer. For example, the soft self-healing layer may have a thickness of 0.1 to 1 mm, preferably 0.2 to 0.5 mm.

Med det bløde plastlag på den side af beskyttelsesglasset, clej. vender mod øjnene undgår man, at glasskår i tilfælde af brud løsner sig og skader øjnene eller ansigtet.With the soft plastic layer on the side of the protective glass, clue. facing the eyes, it is avoided that glass shards in case of breakage loosen and damage the eyes or face.

Som følge af polyurethanlagets store deformationsevne kan glasemnet udsættes for kraftige deformationer uden risiko for, at laget rives over. I tilfælde af meget stor strækpåvirkning yder plastlaget en udmærket beskyttelse, idet det folder sig om glasskårenes skarpe kanter, som herved forhindres i at volde skader.Due to the high deformation capability of the polyurethane layer, the glass blank can be subjected to strong deformations without the risk of tearing the layer over. In the case of very high tensile stress, the plastic layer provides excellent protection as it folds over the sharp edges of the glass shards, thereby preventing damage.

Man har konstateret, at det udvendige plastlag på glasemnet, på grund af sine elasticitetsegenskaber praktisk taget er ufølsomt over for de mekaniske påvirkninger, der normalt angriber overfladen af en plade af silikatglas. Man har således konstateret, at det bløde plastlag er i stand til uden skade at tåle langvarig brug ved arbejdet med sandblæsning, medens en plade af silikatglas under lignende forhold hurtigt gøres mat og uigennemsigtig. Masker eller beskyttelsesskærme for personalet, der arbejder med sandblæsning, eller andre beskyttelsesruder til brug under lignende forhold, kan derfor hensigtsmæssigt være forsynet med et sådant plast lag på den side af glaspladen, der vender mod sandstrålen.It has been found that, due to its elasticity properties, the outer plastic layer of the glass blank is virtually insensitive to the mechanical stresses that normally attack the surface of a sheet of silicate glass. Thus, it has been found that the soft plastic layer is able to withstand long-term use without damage during sandblasting work, while a plate of silicate glass under similar conditions quickly becomes dull and opaque. Therefore, masks or protective screens for personnel working with sandblasting, or other protective windows for use in similar conditions, may conveniently be provided with such a plastic layer on the side of the glass plate facing the sandblasting.

Selve silikatpladens udformning kan være forskellig. Den kan f.eks. bestå af én enkelt plade af udglødet glas, dvs. glas uden indre spændinger. I mange tilfælde er det dog hensigtsmæssigt at anvende en silikatglasplade, der er hærdet ad termisk eller kemisk vej. Sådanne plader af hærdet glas har stor styrke over for stødpåvirkninger, hvorfor de anvendes, specielt når der er risiko for mekaniske stød. Glaspladen kan også være en laminatrude bestående af to enkelte silikatglasplader, der er sammenklæbede ved hjælp af et mellemlag af plastmateriale.The design of the silicate sheet itself may be different. It can e.g. consist of a single plate of annealed glass, ie. glass without internal tension. In many cases, however, it is advisable to use a silicate glass plate which is thermally or chemically cured. Such tempered glass sheets have high impact resistance to impact, which is why they are used, especially when there is a risk of mechanical shock. The glass plate may also be a laminate pane consisting of two single silicate glass sheets which are bonded together by an intermediate layer of plastic material.

Opfindelsen forklares nærmere i det følgende under henvisning til den skematiske tegning, der viser et udførelseseksempel piThe invention will be explained in more detail below with reference to the schematic drawing showing an embodiment example pi.

Claims (1)

DK 155495 B et glasemne til beskyttelse af øjnene. Tegningen viser et glasemne i form af en laminatrude beklædt med et lag af blødt plastmateriale. Lagene 1 og 3 er plader af silikatglas i tykkelse 1 til 3 mm, hvilke plader er sammenklæbet ved hjælp af et mellemlag 2 af poly-vinylbutyral. På den side af glasemnet, der vender mod øjnene, dvs. på ydersiden af glaspladen 3, er der anbragt et lag 4 af blødt, elastisk deformerbart materiale. Det plastmateriale, der danner laget 4, består -af alifatisk polyurethan, der kun i ringe grad er tværbundet. Dette materiale udviser følgende egenskaber ved stuetemperatur : - .Elasticitetsmodul (ved små deformationer): ca.1®°0 daN/cm , - me1lemdeformationsmodul (ved store deformationer): ca. -200 daN/cin - brndfør længel se.: 100%, 2 - .brudtrækstyrke.: 10.0 daN/cm , - plastisk deformation i relation til brudforlængelse: mindre end 2%. Plastlaget 4 kan -påføres i væskeform, hvorefter laget polymeriseres in situ ved varmebehandling. Det er imidlertid -også muligt på forhånd at tilvejebringe et lag af nævnte plastmateriale, der på i og for sig kendt måde påklæ-bes glaspladen, eventuelt under anvendelse af et klæbemiddel, idet , plastlaget kan gøres klæbende ved hjælp af en aktivator eller et opløsningsmiddel. Glasemne til beskyttelse af øjnene og af den art, der omfatter mindst én plade af silikatglas, hvoraf den ene mod brugerens øje vendende side har et lag af svagt tværbundet, transparent polyure-thanlag, der har en høj elastisk deformationsevne med forlængelse før brud på over 60% ved et permanent plastisk deformationsforhold 2 på under 2% og et elasticitetsmodul på under 2000 daN/cm , kendetegnet ved, at der på den bort fra øjnene vendende side af glasemnet også findes et polyurethanlag af i hovedsagen samme beskaffenhed som førstnævnte lag.DK 155495 B a glass blank for eye protection. The drawing shows a glass blank in the form of a laminate pane covered with a layer of soft plastic material. Layers 1 and 3 are sheets of silicate glass in thickness of 1 to 3 mm, which sheets are glued together by an intermediate layer 2 of polyvinyl butyral. On the side of the glass object facing the eyes, ie. on the outside of the glass plate 3, a layer 4 of soft, elastically deformable material is arranged. The plastic material forming the layer 4 consists of aliphatic polyurethane which is only slightly cross-linked. This material exhibits the following properties at room temperature: - Elastic modulus (for small deformations): about 1 ° ° 0 daN / cm, - average deformation modulus (for large deformations): approx. -200 daN / cin - Fuel length see: 100%, 2 - Breakage strength .: 10.0 daN / cm, - Plastic deformation in relation to elongation: less than 2%. The plastic layer 4 can be applied in liquid form, after which the layer is polymerized in situ by heat treatment. However, it is also possible in advance to provide a layer of said plastic material which is adhered in a known manner to the glass plate, optionally using an adhesive, since the plastic layer can be made adherent by means of an activator or solvent. . Glass blank for protection of the eyes and of the type comprising at least one sheet of silicate glass, one of which facing the user's eye has a layer of slightly cross-linked, transparent polyurethane layer having a high elastic deformation capacity with elongation before breaking over 60% at a permanent plastic deformation ratio 2 of less than 2% and a modulus of elasticity of less than 2000 daN / cm, characterized in that on the side of the glass facing away from the eyes is also a polyurethane layer of substantially the same nature as the first layer.
DK311976A 1975-07-11 1976-07-09 GLASS TOP FOR EYE PROTECTION DK155495C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7522010 1975-07-11
DE7522010 1975-07-11

Publications (3)

Publication Number Publication Date
DK311976A DK311976A (en) 1977-01-12
DK155495B true DK155495B (en) 1989-04-17
DK155495C DK155495C (en) 1989-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DK311976A DK155495C (en) 1975-07-11 1976-07-09 GLASS TOP FOR EYE PROTECTION

Country Status (13)

Country Link
JP (3) JPS5224544A (en)
BE (1) BE844004A (en)
BR (1) BR7604506A (en)
CH (1) CH605120A5 (en)
DK (1) DK155495C (en)
ES (1) ES449760A1 (en)
FR (1) FR2316913A1 (en)
GB (1) GB1540250A (en)
IT (1) IT1065007B (en)
LU (1) LU75360A1 (en)
NL (1) NL185633C (en)
NO (1) NO762426L (en)
SE (1) SE7607840L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2757751A1 (en) * 1977-12-23 1979-06-28 Bfg Glassgroup WINDSHIELD FOR MOTOR VEHICLES
DE3635703A1 (en) * 1986-10-21 1988-04-28 Winter Optik LENS FOR PROTECTIVE GOGGLES AND THE LIKE
JPH01136829A (en) * 1987-11-20 1989-05-30 Honda Motor Co Ltd Drive force distribution control device for front rear wheel drive car
FR2924233A1 (en) * 2007-11-23 2009-05-29 Essilor Int OPTICAL ARTICLE COMPRISING A TEMPORARY LAYER OF ALIPHATIC THERMOPLASTIC POLYURETHANE AND APPLICATION TO DEPOSITION

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2228299A1 (en) * 1972-06-09 1974-01-03 Saint Gobain SAFETY GLASS DISC, IN PARTICULAR WINDSHIELD FOR VEHICLES

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS477413U (en) * 1971-02-23 1972-09-27
CA955621A (en) * 1971-06-21 1974-10-01 Ppg Industries, Inc. Tempered bilayer motor vehicle windshield glazing assembly
JPS5948775B2 (en) * 1972-06-09 1984-11-28 サン−ゴベン インダストリ glass sheet assembly
JPH04209Y2 (en) * 1985-07-02 1992-01-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2228299A1 (en) * 1972-06-09 1974-01-03 Saint Gobain SAFETY GLASS DISC, IN PARTICULAR WINDSHIELD FOR VEHICLES

Also Published As

Publication number Publication date
GB1540250A (en) 1979-02-07
BE844004A (en) 1977-01-10
BR7604506A (en) 1977-08-02
IT1065007B (en) 1985-02-25
JPS61143720A (en) 1986-07-01
NL185633C (en) 1990-06-01
SE7607840L (en) 1977-01-12
DK311976A (en) 1977-01-12
ES449760A1 (en) 1977-08-16
NO762426L (en) 1977-01-12
NL7607613A (en) 1977-01-13
LU75360A1 (en) 1977-04-04
DK155495C (en) 1989-10-30
FR2316913B1 (en) 1982-08-13
NL185633B (en) 1990-01-02
CH605120A5 (en) 1978-09-29
JPS5224544A (en) 1977-02-24
JPH0298327U (en) 1990-08-06
FR2316913A1 (en) 1977-02-04

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