US4675237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive layer used in the manufacture of laminated glass and laminated glasses comprising such a layer
Assignee: Saint Gobain Recherche SA
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Filing: 1986-03-28
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Granted: 1987-06-23
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Expires: 2006-03-28
Abstract
Abstract An adhesive layer used in the manufacture of laminated glasses. The layer comprises a cold polymerizable polyurethane formed from an isocyanate component comprising a monoisocyanate with a double ethylene bond and from a polyol component and at least one polymerization initiator.
Inventors
- 👤 Jean-Louis Bravet
- 👤 Gerard Daude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:40
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/81; C08G18/8108; B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; C09; C09J; C09J175/00; C09J175/04; C09J175/14; C09J175/16; B32B2307/00; B32B2307/50; B32B2307/56; B32B2307/70; B32B2307/762; Y; Y10; Y10S; Y10S525/00; Y10S525/92; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31601
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
An adhesive layer used in the manufacture of laminated glazings of glass and/or plastic, comprising a polyurethane formed from a composition comprising an isocyanate component comprising at least one monoisocyanate with a double ethylene bond in its formula, a polyol component comprising at least one polyol selected from the group consisting of the polyetherpolyols or polyesterpolyols with a molecular weight of between 450 and 2000, polycaprolactones with a molecular weight of between 500 and 2000, polycarbonatepolyols and polyesterpolycarbonatepolyols with a molecular weight of between 1000 and 2000, and polybutadienes with a hydroxyl or carboxyl function, at least one short diol with a molecular weight of between 50 and 200, at least one reticulating agent with a functionality greater than 2 and at least one polymerization initiator.
Claim 2
Dependent Claim
126 words
An adhesive layer used in the manufacture of laminated glazings of glass and/or plastic, comprising a polyurethane formed from a composition comprising an isocyanate component comprising at least one monoisocyanate with a double ethylene bond in its formula, a polyol component comprising at least one polyol selected from the group consisting of the polyetherpolyols or polyesterpolyols with a molecular weight of between 450 and 2000, polycaprolactones with a molecular weight of between 500 and 2000, polycarbonatepolyols and polyesterpolycarbonatepolyols with a molecular weight of between 1000 and 2000, and polybutadienes with a hydroxyl or carboxyl function, at least one short diol with a molecular weight of between 50 and 200, at least one reticulating agent with a functionality greater than 2 and at least one polymerization initiator.
Claim 3
Dependent Claim
20 words
The adhesive layer of claim 1, wherein said reticulating agent is a triol of molecular weight between 100 and 3000.
Claim 4
Dependent Claim
24 words
The adhesive layer in accordance with claim 1, wherein the monoisocyanate with a double ethylene bond is selected from among α,α-metisopropenyl dimethylbenzylisocyanate and isocyanatoethylmethacrylate.
Claim 5
Dependent Claim
21 words
The adhesive layer in accordance with claim 1, wherein the isocyanate component also comprises at least one aliphatic or cycloaliphatic diisocyanate.
Claim 6
Dependent Claim
15 words
The adhesive layer in accordance with claim 1, wherein the polymerization initiator is a photoinitiator.
Claim 7
Dependent Claim
27 words
The adhesive layer in accordance with claim 1, wherein the composition contains at least one acrylic derivative in addition to the monoisocyanate with a double ethylene bond.
Claim 8
Dependent Claim
14 words
A laminated glass comprising at least one adhesive layer in accordance with claim 1.
Claim 9
Dependent Claim
34 words
The laminated glass in accordance with claim 7, characterized in that it comprises a monolithic or laminated support and a non-lacerating and self-repairing layer adhered to the support by means of the adhesive layer.
Claim 10
Dependent Claim
48 words
The laminated glass in accordance with claim 7, characterized in that it comprises a monolithic or laminated support and a two-layer sheet of polyurethane, comprised of a non-lacerating and self-repairing layer and a layer with energy absorbing properties, adhered to the support by means of the adhesive layer.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |