US2828237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing polyethylene to other organic resins
Assignee: Akzo Nobel UK PLC
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Filing: 1955-09-08
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Granted: 1958-03-25
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Expires: 1975-09-08
Abstract
No abstract record available.
Inventors
- 👤 Charles M Rosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:39
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/02; B; B32; B32B; B32B27/00; C08J; C08J5/00; C08J5/12; C08J5/124; C08J5/125; C08L77/00; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08J2367/00; C08J2367/02; C08J2377/00; C08J2479/00; C08J2479/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
A JOINT COMPRISING A POLYETHYLENE MEMBER, A MEMBER IN BONDED RELATION THEREWITH COMPRISING AN ORGANIC POLYMERIC RESIN, AND A POLYALKYLENIMINE AT THE INTERFACE OF THE POLYETHYLENE AND SAID RESIN.
Claim 2
Dependent Claim
29 words
A JOINT COMPRISING A POLYETHYLENE MEMBER, A MEMBER IN BONDED RELATION THEREWITH COMPRISING AN ORGANIC POLYMERIC RESIN, AND A POLYALKYLENIMINE AT THE INTERFACE OF THE POLYETHYLENE AND SAID RESIN.
Claim 3
Dependent Claim
81 words
IN A METHOD OF JOINING A THIN FLEXIBLE MEMBER COMPRISING POLYETHYLENE FORMING A SURFACE THEREOF TO ANOTHER MEMBER COMPRISING AN ORGANIC POLYMERIC RESIN FORMING A SURFACE TO BE JOINED WITH SAID FIRST-NAMED SURFACE, THE STEPS COMPRISING APPLYING A SOLUTION OF POLYALKYLENIMINE TO ONE OF SAID SURFACES, AFTER THE SOLVENT OF THE POLYALKYLENIMINE HAS EVAPORATED BRINGING THE SURFACES TOGETHER UNDER PRESSURE APPLIED TO THE MEMBERS, AND SIMULTANEONSLY HEATING THE MEMBERS SUFFICIENTLY TO ACTIVATE THE POLYALKYLENIMINE AS A BONDING AGENT FOR SAID SURFACES.
Claim 4
Dependent Claim
81 words
IN A METHOD OF JOINING A THIN FLEXIBLE MEMBER COMPRISING POLYETHYLENE FORMING A SURFACE THEREOF TO ANOTHER MEMBER COMPRISING AN ORGANIC POLYMERIC RESIN FORMING A SURFACE TO BE JOINED WITH SAID FIRST-NAMED SURFACE, THE STEPS COMPRISING APPLYING A SOLUTION OF POLYALKYLENIMINE TO ONE OF SAID SURFACES, AFTER THE SOLVENT OF THE POLYALKYLENIMINE HAS EVAPORATED BRINGING THE SURFACES TOGETHER UNDER PRESSURE APPLIED TO THE MEMBERS, AND SIMULTANEONSLY HEATING THE MEMBERS SUFFICIENTLY TO ACTIVATE THE POLYALKYLENIMINE AS A BONDING AGENT FOR SAID SURFACES.
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |