US4741961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane-based adhesive coating or film, and use of same in laminated glass panes
Assignee: Saint Gobain Vitrage SA
•
Filing: 1986-02-26
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Granted: 1988-05-03
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Expires: 2006-02-26
Abstract
Abstract A transparent adhesive coating or film based on polyurethane. A polyurethane formed from at least one aliphatic or cycloaliphatic diisocyanate, at least one polyol chosen from among the polyether diols, the polycaprolactone diols, the polycarbonate diols, and the polybutadiene diols, and at least one bifunctional chain-lengthening agent containing an aromatic nucleus.
Inventors
- 👤 Kurt C. Frisch
- 👤 Daniel Klempner
- 👤 Helmer Radisch
- 👤 Gerhard Holzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:55
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/1077; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/65; C08G18/6505; C08G18/6511; C08G18/6576; C08G18/6582; C08G18/6588; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31598; Y10T428/31601
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
56 words
A transparent adhesive polyurethane-based coating or film usable in laminated glass panes; wherein the polyurethane is formed from at least one aliphatic or cycloaliphatic diisocyanate, at least one polyol chosen from among the polyether diols, the polycaprolactone diols, the polycarbonate diols, and the polybutadiene diols, and at least one bifunctional chain-lengthening agent containing an aromatic nucleus.
Claim 2
Dependent Claim
56 words
A transparent adhesive polyurethane-based coating or film usable in laminated glass panes; wherein the polyurethane is formed from at least one aliphatic or cycloaliphatic diisocyanate, at least one polyol chosen from among the polyether diols, the polycaprolactone diols, the polycarbonate diols, and the polybutadiene diols, and at least one bifunctional chain-lengthening agent containing an aromatic nucleus.
Claim 3
Dependent Claim
28 words
A transparent adhesive coating or film according to claim 1; wherein the diisocyanate is chosen from among 4,4'methylenebis(cyclohexyl) diisocyanate, trans-1,4-cyclohexane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, and dimeryl diisocyanate.
Claim 4
Dependent Claim
24 words
A transparent adhesive coating or film according to claim 2; characterized in that the diisocyanate is chosen from among trans-1,4-cyclohexane diisocyanate and 4,4'-methylenebis(cyclohexyl) diisocyanate.
Claim 5
Dependent Claim
25 words
A transparent adhesive coating or film according to claim 1 wherein the polyol is a polyether diol chosen from among the poly(1,4-oxybutylene)diols and the poly(oxypropylene)diols.
Claim 6
Dependent Claim
17 words
A transparent adhesive coating or film according to claim 4; wherein the polyol is poly(1,4 oxybutylene) glycol.
Claim 7
Dependent Claim
21 words
A transparent adhesive coating or film according to claim 1 wherein the polyol has a molecular weight between 300 and 3000.
Claim 8
Dependent Claim
43 words
Transparent adhesive coating or film according to claim 1 wherein the aromatic chain-lengthing agent is a diol chosen from the group consisting of bis (2-hydroxyethyl) hydroquinone, 2,2'-propylidenebis (p-phenyleneoxy) di-ω-2-propanol, 2,2'resorcinol propylene bis [(p-phenyleneoxy) ethyleneoxy]di-ω-ethanol and the bis-hydroxyalkyl ethers of terephthalic and isophthalic acid.
Claim 9
Dependent Claim
31 words
A transparent adhesive coating or film according to claim 7 wherein the chain-lengthening agent is a diol chosen from among the following: bis (2-hydroxyethyl) hydroquinone, 2,2'-propylidenebis(p-phenyleneoxy) di-ω-2-propanol and 2,2'propylene bis [(p-phenyleneoxy-ethyleneoxy]di-ω-ethanol.
Claim 10
Dependent Claim
16 words
A laminated glass pane comprising an adhesive coating or film according to one of claim 1.
Claim 11
Dependent Claim
20 words
A laminated glass pane according to claim 9 wherein the adhesive coating or film is disposed between two glass sheets.
Claim 12
Dependent Claim
27 words
A laminated glass pane according to claim 9; wherein the adhesive coating or film is disposed between a glass sheet and a sheet comprised of plastic material.
Claim 13
Dependent Claim
41 words
A laminated glass pane according to claim 11; wherein the adhesive coating or film is disposed between a glass sheet and a sheet of plastic material, said sheet of plastic material comprising a heatsetting polyurethane material having antilaceration and self-healing properties.
Claim 14
Dependent Claim
49 words
A laminated glass pane according to claim 9; wherein the adhesive coating or film is disposed between two sheets, coatings, or films, of plastic material, which material is chosen from the group consisting of polycarbonate, cellulose plastic, acrylic such as polymethyl methacrylate, polyvinyl chloride, polystyrene, polyethylene terephthalate, and polyurethane.
Claim 15
Dependent Claim
74 words
A transparent sheet of plastic material of high optical quality, employed in the manufacture of laminated glass panes and comprised of two layers, one of which layers is comprised of plastic material having antilaceration and self-healing properties, comprised of a heat-setting polyurethane, and the other is comprised of plastic material having adhesive properties; characterized in that the layer of plastic material having adhesive properties is the adhesive coating or film according to claim 1.
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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) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |