Patent US3112235A successfully refreshed from Google Patents.
US3112235A
Expired / Lapsed
US
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Method of adhering surfaces
Assignee: Hexion Inc
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Filing: 1959-12-31
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Granted: 1963-11-26
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Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Blanchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:43
CPC Classifications
C; C09; C09J; C09J5/00; C09J5/04; C09J129/00; C09J129/02; C09J129/04; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN ADHERING TOGETHER THE SURFACES OF TWO OBJECTS AT LEAST ONE OF WHICH IS POROUS, THE PROCESS WHICH COMPRISES APPLYING TO ONE OF THE SURFACES A DISPERSION OF POLYVINYL ALCOHOL IN WATER AND TO THE OTHER SURFACE A GELLING AGENT CONSISTING ESSENTIALLY OF A BORATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF BORATES OF THE ALKALI METALS AND AMMONIUM IN AMOUNT TO COAT THE SAID OTHER SURFACE, HOLDING THE TWO SURFACES SO TREATED IN CONTACT WITH EACH OTHER UNTIL THE BORATE CAUSES GELATION OF THE POLYVINYL ALCOHOL PARTLY WITHIN THE POROUS ONE OF THE SAID OBJECTS AND PARTLY BETWEEN THE TWO SURFACES SO THAT THE GELATION PROVIDES AN ADHESIVE BOND OF APPRECIABLE WET STRENGTH, AND THEN SUBJECTING THE BONDED PRODUCT TO DRYING SO THAT WATER VAPORT ESCAPES THROUGH THE SAID POROUS ONE OF THE OBJECTS AND THE DRY STRENGTH IS DEVELOPED IN THE ADHESIVE, THE SAID BORATE HAVING 1-12 EQUIVALENTS OF THE SAID METAL FOR 6 ATOMS OF BORON AND THE PROPORTIONS BY WEIGHT ON THE DRY BASIS BEING ABOUT 0.1-10 PARTS OF THE METAL BORATE FOR 100 PARTS OF THE POLYVINYL ALCOHOL.
Claim 2
Dependent Claim
185 words
IN ADHERING TOGETHER THE SURFACES OF TWO OBJECTS AT LEAST ONE OF WHICH IS POROUS, THE PROCESS WHICH COMPRISES APPLYING TO ONE OF THE SURFACES A DISPERSION OF POLYVINYL ALCOHOL IN WATER AND TO THE OTHER SURFACE A GELLING AGENT CONSISTING ESSENTIALLY OF A BORATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF BORATES OF THE ALKALI METALS AND AMMONIUM IN AMOUNT TO COAT THE SAID OTHER SURFACE, HOLDING THE TWO SURFACES SO TREATED IN CONTACT WITH EACH OTHER UNTIL THE BORATE CAUSES GELATION OF THE POLYVINYL ALCOHOL PARTLY WITHIN THE POROUS ONE OF THE SAID OBJECTS AND PARTLY BETWEEN THE TWO SURFACES SO THAT THE GELATION PROVIDES AN ADHESIVE BOND OF APPRECIABLE WET STRENGTH, AND THEN SUBJECTING THE BONDED PRODUCT TO DRYING SO THAT WATER VAPORT ESCAPES THROUGH THE SAID POROUS ONE OF THE OBJECTS AND THE DRY STRENGTH IS DEVELOPED IN THE ADHESIVE, THE SAID BORATE HAVING 1-12 EQUIVALENTS OF THE SAID METAL FOR 6 ATOMS OF BORON AND THE PROPORTIONS BY WEIGHT ON THE DRY BASIS BEING ABOUT 0.1-10 PARTS OF THE METAL BORATE FOR 100 PARTS OF THE POLYVINYL ALCOHOL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |