← Back to Patent Explorer
US3215580A Expired / Lapsed US ⏱️ 0.0 years remaining

Coating and laminating process

Assignee: WR Grace and Co
•
Filing: 1964-06-25
•
Granted: 1965-11-02
•
Expires: 1984-06-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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.

References Cited (Backward Citations)

US2226589A Cited
GB584857A Cited
US2580050A Cited
US2706699A Cited
US2859200A Cited
US2827447A Cited
GB819291A Cited
US2958686A Cited
US3117112A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag