US3852151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester-metal laminates
Assignee: Novartis AG
•
Filing: 1972-03-30
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Granted: 1974-12-03
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Expires: 1992-03-30
Abstract
Abstract Laminates of one of more layers of a saturated thermoplastic polyester, one or more continuous metal layers and one or more adhesive layers, wherein the polyester layer is coated on at least one of its bonding surfaces with an additional layer of metal, glass, mineral or ceramic particles of 10 to 100 microns in size.
Inventors
- 👤 E Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:29
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/09; B29; B29C; B29C37/00; B29C37/0078; B29C37/0082; B32B27/00; B32B27/36; B32B7/00; B32B7/04; B32B7/12; B32B2255/00; B32B2255/10; B32B2255/20; B32B2264/00; B32B2264/10; B32B2311/00; B32B2367/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24413; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
125 words
A LAMINATE COMPRISING ONE OR MORE LAYERS EACH OF 0.3 TO 100 MM THICKNESS OF A SATURATED THERMOPLASTIC POLYESTER WITH A MELTING POINT NOT LOWER THAN 200*C, ONE OR MORE CONTINUOUS METAL LAYERS EACH BONDED BY AN ADHESIVE LAYER TO SAID POLYESTER LAYER, WHICH LAMINATES ARE CHARACTERIZZEED BY THE POLYESTER LAYER HAVING IMBEDDED ON AT LEAST ONE OF ITS BONDING SURFACES WITH AN ADDITIONAL DISCONTINUOUS LAYER IMPARTING GREATER ADHESIVE POWER WHEREIN SAID DISCONTINUOUS LAYER IS A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MANGANESE, IRON, ALUMINUM, COPPER, NICKEL, CHROMIUM, BISMUTH, TIN, MAGNESIUM, BRASS, BRONZE, ANTIMONY-LEAD, CORUNDUM, GYPSUM, CALCITE, CLAY, AND SILICATE, PARTICLES OF 10 TO 100 MICRONS IN SIZE APLIED IN AMOUNTS OF 10 TO 300 GRAMS PER SQUARE METER OF THE POLYESTER BONDING SURFACE.
Claim 2
Dependent Claim
125 words
A LAMINATE COMPRISING ONE OR MORE LAYERS EACH OF 0.3 TO 100 MM THICKNESS OF A SATURATED THERMOPLASTIC POLYESTER WITH A MELTING POINT NOT LOWER THAN 200*C, ONE OR MORE CONTINUOUS METAL LAYERS EACH BONDED BY AN ADHESIVE LAYER TO SAID POLYESTER LAYER, WHICH LAMINATES ARE CHARACTERIZZEED BY THE POLYESTER LAYER HAVING IMBEDDED ON AT LEAST ONE OF ITS BONDING SURFACES WITH AN ADDITIONAL DISCONTINUOUS LAYER IMPARTING GREATER ADHESIVE POWER WHEREIN SAID DISCONTINUOUS LAYER IS A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MANGANESE, IRON, ALUMINUM, COPPER, NICKEL, CHROMIUM, BISMUTH, TIN, MAGNESIUM, BRASS, BRONZE, ANTIMONY-LEAD, CORUNDUM, GYPSUM, CALCITE, CLAY, AND SILICATE, PARTICLES OF 10 TO 100 MICRONS IN SIZE APLIED IN AMOUNTS OF 10 TO 300 GRAMS PER SQUARE METER OF THE POLYESTER BONDING SURFACE.
Claim 3
Dependent Claim
32 words
Laminates according to claim 1, wherein the layer imparting greater adhesive power consists of a metal selected from the group consisting of iron, manganese, aluminium, copper, nickel, chromium, bismuth, tin and magnesium.
References Cited (Backward Citations)
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US2955973A
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US3101275A
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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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |