US4027061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated safety glass
Assignee: Monsanto Co
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Filing: 1975-11-18
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Granted: 1977-05-31
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Expires: 1995-11-18
Abstract
Abstract Disclosed herein is a laminated glazing unit for vehicle and architectural uses which comprises glass, an interlayer and a high nitrile polymer in a laminated configuration wherein the interlayer is sandwiched between the glass and the high nitrile polymer.
Inventors
- 👤 George E. Cartier
- 👤 James A. Snelgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:14
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/1077; B32B17/10009; B32B17/10018; B32B17/10165; B32B17/10293; B32B17/10302; B32B17/1033; B32B17/10688; B32B17/10761; B32B27/00; B32B27/28; B32B27/30; B32B27/306; B32B27/40; B32B7/00; B32B7/04; B32B7/12; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; B32B2315/00; B32B2315/08; B32B2329/00; B32B2329/06; B32B2333/00; B32B2355/00; B32B2367/00; B32B2375/00; B32B2605/00; B32B2605/08; C08J2333/00; C08J2333/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31583; Y10T428/31627; Y10T428/3163; Y10T428/31652; Y10T428/31663; Y10T428/31855
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
89 words
A laminated glazing unit comprising in laminated combination: (a) a glass sheet, (b) a plastic interlayer material selected from the group consisting of polyvinyl butyral and polyurethane; and (c) a nitrile polymer film having a nitrile monomer content of at least 55 percent by weight wherein the nitrile monomer is selected from the group consisting of acrylonitrile and methacrylonitrile wherein the surface of the nitrile polymer which is laminated to the interlayer is coated with a silane selected from the group consisting of gamma-aminopropyl triethoxy silane and polyaminofunctional silane.
Claim 2
Dependent Claim
89 words
A laminated glazing unit comprising in laminated combination: (a) a glass sheet, (b) a plastic interlayer material selected from the group consisting of polyvinyl butyral and polyurethane; and (c) a nitrile polymer film having a nitrile monomer content of at least 55 percent by weight wherein the nitrile monomer is selected from the group consisting of acrylonitrile and methacrylonitrile wherein the surface of the nitrile polymer which is laminated to the interlayer is coated with a silane selected from the group consisting of gamma-aminopropyl triethoxy silane and polyaminofunctional silane.
Claim 3
Dependent Claim
15 words
A laminated glazing unit as in claim 1 wherein the interlayer is plasticized polyvinyl butyral.
Claim 4
Dependent Claim
15 words
A laminated glazing unit as in claim 2 wherein the silane is gamma-aminopropyl triethoxy silane.
Claim 5
Dependent Claim
19 words
A laminated glazing unit as in claim 3 wherein the nitrile polymer is a copolymer of acrylonitrile and styrene.
Claim 6
Dependent Claim
23 words
A laminated glazing unit as in claim 3 wherein the exposed surface of the acrylonitrile polymer is coated with an abrasion resistant coating.
Claim 7
Dependent Claim
21 words
A laminated glazing unit as in claim 5 wherein the abrasion resistant coating is based on polysilicic acid and polyvinyl butyral.
Claim 8
Dependent Claim
16 words
A laminated glazing unit as in claim 5 wherein the abrasion resistant coating is a polyurethane.
Claim 9
Dependent Claim
80 words
A laminated glazing unit comprising in laminated combination: (a) a glass sheet, (b) a plasticized polyvinyl butyral interlayer having a thickness in the range of 125 to 1875 microns; and (c) an acrylonitrile polymer film having an acrylonitrile monomer content of at least 55 percent by weight and a thickness in the range of from 12 to 500 microns; wherein the surface of the nitrile polymer film which is laminated to the interlayer is coated with a gamma-aminopropyl triethoxy silane.
Claim 10
Dependent Claim
80 words
A laminated glazing unit comprising in laminated combination: (a) a glass sheet, (b) a plasticized polyvinyl butyral interlayer having a thickness in the range of 125 to 1875 microns; and (c) an acrylonitrile polymer film having an acrylonitrile monomer content of at least 55 percent by weight and a thickness in the range of from 12 to 500 microns; wherein the surface of the nitrile polymer film which is laminated to the interlayer is coated with a gamma-aminopropyl triethoxy silane.
Claim 11
Dependent Claim
23 words
A laminated glazing unit as in claim 8 wherein the exposed surface of the acrylonitrile polymer is coated with an abrasion resistant coating.
Claim 12
Dependent Claim
21 words
A laminated glazing unit as in claim 9 wherein the abrasion resistant coating is based on polysilicic acid and polyvinyl butyral.
Claim 13
Dependent Claim
16 words
A laminated glazing unit as in claim 9 wherein the abrasion resistant coating is a polyurethane.
Claim 14
Dependent Claim
26 words
A laminated glazing unit according to claim 1 in which the nitrile polymer contains up to 25% by weight of a synthetic or natural rubber component.
Claim 15
Dependent Claim
117 words
A laminated glazing unit comprising in laminated combination: (a) a glass sheet; (b) a plasticized polyvinyl butyral interlayer having a thickness in the range of from 125 microns to 1875 ; and (c) an acrylonitrile polymer film having an acrylonitrile monomer content of at least 55 percent by weight and having a thickness in the range of from 50 tp 250 microns; wherein the surface of the nitrile polymer film which is laminated to the interlayer is coated with a gamma-aminopropyl triethoxy silane; and wherein the exposed surface of the acrylonitrile polymer is coated with an abrasion resistant coating which is selected from the group consisting of polyurethane and coatings based on polysilicic acid and polyvinyl butyral.
Claim 16
Dependent Claim
117 words
A laminated glazing unit comprising in laminated combination: (a) a glass sheet; (b) a plasticized polyvinyl butyral interlayer having a thickness in the range of from 125 microns to 1875 ; and (c) an acrylonitrile polymer film having an acrylonitrile monomer content of at least 55 percent by weight and having a thickness in the range of from 50 tp 250 microns; wherein the surface of the nitrile polymer film which is laminated to the interlayer is coated with a gamma-aminopropyl triethoxy silane; and wherein the exposed surface of the acrylonitrile polymer is coated with an abrasion resistant coating which is selected from the group consisting of polyurethane and coatings based on polysilicic acid and polyvinyl butyral.
Claim 17
Dependent Claim
24 words
A laminated glazing unit according to claim 13 in which the acrylonitrile polymer contains up to 25% by weight of a grafted butadiene rubber.
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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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |