US3133854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl fluoride laminates and process for making same
Assignee: EIDP Inc
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Filing: 1960-11-15
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Granted: 1964-05-19
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Expires: 1980-11-15
Abstract
No abstract record available.
Inventors
- 👤 Simms John Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:24
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; C03; C03C; C03C17/00; C03C17/34; C03C17/3405; C04B41/45; C04B41/52; C04B41/60; C04B41/61; C04B41/70; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A LAMINATE COMPRISING A SUBSTRATE, A PREFORMED LAYER OF POLYVINYL FLUORIDE AT LEAST ONE SURFACE OF WHICH IS ADJACENT SAID SUBSTRATE AND HAS BEEN CHEMICALLY ACTIVATED AND, BETWEN SAID SUBSTRATE AND SAID ACTIVATED SURFACE, AN INTERMEDIATE ADHESIVE LAYER COMPRISING A VINYL ADDITION POLYMER HAVING SUBSTITUENTS EACH OF WHICH BEARS ON ADJACENT CARBON ATOMS A HYDROXYL RADICAL AND AN AMINO RADICAL BEARING AT LEAST ONE ACTIVE HYDROGEN ATOM, SAID AMINO RADICALS IN SAID SUBSTITUENTS CONTAINING ABOUT FROM 0.01 TO 1.0% OF AMINO NITROGEN BASED ON THE WEIGHT OF SAID POLYMER, SAID POLYMER HAVING A GLASS TRANSITION TEMPERTURE OF AT LEAST ABOUT 35*C.
Claim 2
Dependent Claim
101 words
A LAMINATE COMPRISING A SUBSTRATE, A PREFORMED LAYER OF POLYVINYL FLUORIDE AT LEAST ONE SURFACE OF WHICH IS ADJACENT SAID SUBSTRATE AND HAS BEEN CHEMICALLY ACTIVATED AND, BETWEN SAID SUBSTRATE AND SAID ACTIVATED SURFACE, AN INTERMEDIATE ADHESIVE LAYER COMPRISING A VINYL ADDITION POLYMER HAVING SUBSTITUENTS EACH OF WHICH BEARS ON ADJACENT CARBON ATOMS A HYDROXYL RADICAL AND AN AMINO RADICAL BEARING AT LEAST ONE ACTIVE HYDROGEN ATOM, SAID AMINO RADICALS IN SAID SUBSTITUENTS CONTAINING ABOUT FROM 0.01 TO 1.0% OF AMINO NITROGEN BASED ON THE WEIGHT OF SAID POLYMER, SAID POLYMER HAVING A GLASS TRANSITION TEMPERTURE OF AT LEAST ABOUT 35*C.
Claim 3
Dependent Claim
136 words
A PROCESS FOR FORMING LAMINATES OF POLYVINYL FLUORIDE WHICH COMPRISES APPLYING TO AT LEAST ONE SURFACE OF EACH PAIR OF SURFACES TO BE ADHERED AN ADHESIVE COMPOSITION COMPRISING A VINYL ADDITION POLYMER HAVING SUBSTITUENTS EACH OF WHICH BEARS ON ADJACENT CARBON ATOMS A HYDROXYL RADICAL AND AN AMINO RADICAL, SAID AMINO RADICALS IN SAID SUBSTITUENTS CONTAINING ABOUT FROM 0.01 TO 1.0% OF AMINO NITROGEN BASED ON THE WEIGHT OF SAID POLYMER AND SAID POLYNMER HAVING A GLASS TRANSITION TEMPERATURE OF AT LEAST ABOUT 35*C., DRYING SAID ADHESIVE TO REMOVE SOLVENT THEREFROM, BRINGING TOGETHER THE SURFACES TO BE ADHERED AT LEAST ONE OF WHICH COMPRISES A CHEMICALLY ACTIVATED SURFACE OF A LAYER OF POLYVINYL FLUORIDE AND PRESSING THE RESULTING PRODUCT WHILE SAID ADHESIVE IS HELD AT A TEMPERATURE ABOVE THE GLASS TRANSITION TEMPERATURE OF SAID POLYMER THEREIN.
Claim 4
Dependent Claim
136 words
A PROCESS FOR FORMING LAMINATES OF POLYVINYL FLUORIDE WHICH COMPRISES APPLYING TO AT LEAST ONE SURFACE OF EACH PAIR OF SURFACES TO BE ADHERED AN ADHESIVE COMPOSITION COMPRISING A VINYL ADDITION POLYMER HAVING SUBSTITUENTS EACH OF WHICH BEARS ON ADJACENT CARBON ATOMS A HYDROXYL RADICAL AND AN AMINO RADICAL, SAID AMINO RADICALS IN SAID SUBSTITUENTS CONTAINING ABOUT FROM 0.01 TO 1.0% OF AMINO NITROGEN BASED ON THE WEIGHT OF SAID POLYMER AND SAID POLYNMER HAVING A GLASS TRANSITION TEMPERATURE OF AT LEAST ABOUT 35*C., DRYING SAID ADHESIVE TO REMOVE SOLVENT THEREFROM, BRINGING TOGETHER THE SURFACES TO BE ADHERED AT LEAST ONE OF WHICH COMPRISES A CHEMICALLY ACTIVATED SURFACE OF A LAYER OF POLYVINYL FLUORIDE AND PRESSING THE RESULTING PRODUCT WHILE SAID ADHESIVE IS HELD AT A TEMPERATURE ABOVE THE GLASS TRANSITION TEMPERATURE OF SAID POLYMER THEREIN.
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |