US3288745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating composition containing phenolformaldehyde resin and a polyethylene glycol
Assignee: Heresite and Chemical Co
•
Filing: 1965-03-05
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Granted: 1966-11-29
•
Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 Charles H Hempel
- 👤 Herbert E Pleuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:38
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A COATING COMPOSITION HAVING IMPROVED QUALITIES OF ADHESION TO UNETCHED METAL SURFACES, SAID COATING COMPOSITION CONSISTING ESSENTIALLY OF AN ALKALI PHENO-FORM ALDEHYDE RESIN HAVING FROM 90 TO 120 PARTS BY WEIGHT OF FORMALDEHYDE TO EACH 100 PARTS BY WEIGHT OF PHENOL ADMIXED WITH 20 TO 50 PERCENT BY WEIGHT OF THE NONVOLATILES OF THE RESIN OF A POLYETHYLENE GLYCOL HAVING THE FORMULA HO(C2H4O)NC2H4OH WHERE N IS AN INTEGER SUFFICIENT TO DEFINE A MOLECULAR WEIGHT OF FROM 200 TO 600, SAID ADMIXTURE BEING DISSOLVED IN A SOLVENT.
Claim 2
Dependent Claim
86 words
A COATING COMPOSITION HAVING IMPROVED QUALITIES OF ADHESION TO UNETCHED METAL SURFACES, SAID COATING COMPOSITION CONSISTING ESSENTIALLY OF AN ALKALI PHENO-FORM ALDEHYDE RESIN HAVING FROM 90 TO 120 PARTS BY WEIGHT OF FORMALDEHYDE TO EACH 100 PARTS BY WEIGHT OF PHENOL ADMIXED WITH 20 TO 50 PERCENT BY WEIGHT OF THE NONVOLATILES OF THE RESIN OF A POLYETHYLENE GLYCOL HAVING THE FORMULA HO(C2H4O)NC2H4OH WHERE N IS AN INTEGER SUFFICIENT TO DEFINE A MOLECULAR WEIGHT OF FROM 200 TO 600, SAID ADMIXTURE BEING DISSOLVED IN A SOLVENT.
References Cited (Backward Citations)
US2253235A
Cited
US2636017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |