Patent US3074897A successfully refreshed from Google Patents.
US3074897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous alkaline adhesive comprising phenol-formaldehyde condensate and homopolymers of ethylene oxide
Assignee: Hexion Inc
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Filing: 1960-02-17
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Granted: 1963-01-22
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Expires: 1980-02-17
Abstract
No abstract record available.
Inventors
- 👤 Baker Edgar Bradbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/04; C09J161/06; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN ADHESIVE COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF THE ALKALI SOLUBLE RESINOUS CONDENSATION PRODUCT OF FORMALDEHYDE WITH A PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENOL, M-CRESOL AND 3,5-XYLENOL IN THE PROPORTION OF ABOUT 1.5-2.5 MOLES OF THE FORMALDEHYDE TO 1 MOLE OF THE SELECTED PHENOL, AN ALKALI METAL ALKALI AND A HOMOPOLYMER OF ETHYLENE OXIDE OF MOLECULAR WEIGHT WITHIN THE RANGE 200,000-3,500,000, THE SAID HOMOPOLYMER BEING A SPREADING PROMOTER FOR THE ADHESIVE COMPOSITION AND THE PROPORTIONS BY WEIGHT BEING APPROXIMATELY 20-50 PARTS OF THE ALKALI METAL ALKALI FOR 100 PARTS OF THE SELECTED PHENOL AND 0.005-0.25 PART OF THE HOMOPOLYMER FOR 100 PARTS OF THE SAID SOLUTION.
Claim 2
Dependent Claim
108 words
AN ADHESIVE COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF THE ALKALI SOLUBLE RESINOUS CONDENSATION PRODUCT OF FORMALDEHYDE WITH A PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENOL, M-CRESOL AND 3,5-XYLENOL IN THE PROPORTION OF ABOUT 1.5-2.5 MOLES OF THE FORMALDEHYDE TO 1 MOLE OF THE SELECTED PHENOL, AN ALKALI METAL ALKALI AND A HOMOPOLYMER OF ETHYLENE OXIDE OF MOLECULAR WEIGHT WITHIN THE RANGE 200,000-3,500,000, THE SAID HOMOPOLYMER BEING A SPREADING PROMOTER FOR THE ADHESIVE COMPOSITION AND THE PROPORTIONS BY WEIGHT BEING APPROXIMATELY 20-50 PARTS OF THE ALKALI METAL ALKALI FOR 100 PARTS OF THE SELECTED PHENOL AND 0.005-0.25 PART OF THE HOMOPOLYMER FOR 100 PARTS OF THE SAID SOLUTION.
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |