US3215580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating and laminating process
Assignee: WR Grace and Co
•
Filing: 1964-06-25
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Granted: 1965-11-02
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Expires: 1984-06-25
Abstract
No abstract record available.
Inventors
- 👤 Calvin J Benning
- 👤 Frank X Werber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:59
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08F; C08F4/00; C08F4/06; C08F4/12; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/266; Y10T428/269; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
190 words
THE PROCESS OF LAMINATING SUBSTRATES HAVING AN EXCESS ELECTRON DENSITY, I.E., ELECTRONS PRESENT IN EXCESS OF THOSE REQUIRED FOR FORMING THE CHEMICAL BONDS OF THE SUBSTRATES WHICH COMPRISES APPLYING TO AT LEAST ONE SURFACE OF EACH PAIR OF SUBSTRATE SURFACES TO BE ADHERED UNDER ATMOSPHERIC CONDITIONS, A COATING COMPOSITION CONSISTING ESSENTIALLY OF A LIQUID VINYL MONOMER OF THE FORMULA H2C=C(-R1)-R2 WHEREIN R1 IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND AN ORGANIC RADICAL AND R2 IS AN ORGANIC RADICAL AND 0.01 TO 25% BY WEIGHT OF SAID VINYL MONOMER OF AN ALUMINUM ALKYL COMPOUND OF THE FORMULA R-AL(-R'')2 WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF ALKYL AND H AND R'' IS AN ALKYL, ALL OF SAID ALKYLS CONTAINING 1 TO 8 CARBON ATOMS, SAID COMPOSITION BEING MAINTAINED UNDER OXYGEN FREE CONDITIONS PRIOR TO APPLICATION, EXPOSING SAID COATING COMPOSITION TO FREE-OXYGEN AT AMBIENT CONDITIONS THUS INITIATING POLYMERIZATION OF THE VINYL MONOMER, ALLOWING SAID POLYMERIZATION TO CONTINUE UNTIL THE COATING IS TACKY, CONTACTING THE SURFACES OF THE SUBSTRATES TO BE ADHERED AND PRESSING THE RESULATANT LAMINATE AT A PRESSURE OF 1 TO 500 P.S.I. TO EFFECT ADHESION.
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |