Patent US2902459A successfully refreshed from Google Patents.
US2902459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersion containing oxidizing acid, phenol-aldehyde resin, and polymer of vinyl acetate
Assignee: Hexion Inc
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Filing: 1954-10-20
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Granted: 1959-09-01
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Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Teppema Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:29
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/54; C08L31/00; C08L31/02; C08L31/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN ADMIXTURE OF AN AQUEOUS RESINOUS DISPERSION WITH AN OXIDIZING ACIDIC COMPOSITION SELECTED FROM THE GROUP CONSISTING OF AQUEOUS SOLUTIONS OF NITRIC ACID, CHROMIC ACID, PERCHLORIC ACID, PERMANGANIC ACID, AND ACETYL PEROXIDE-HYDROCHLORIC ACID; SAID DISPERSION COMPRISING DISPERSED THEREIN AN A-STAGE WATER DISPERSIBLE RESINOUS PRODUCT OF THE CONDENSATION OF A PHENOL AND AN ALDEHYDE, AND A POLYMER OF VINYL ACETATE; THE WEIGHT RATIO OF POLYMER OF VINYL ACETATE TO RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 1.0 TO 5.0; THE AMOUNT OF ACID IN MILLIEQUIVALENTS PER 100 PARTS OF THE TOTAL OF POLYMER OF VINYL ACETATE AND RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 10 TO 33.3.
Claim 2
Dependent Claim
108 words
AN ADMIXTURE OF AN AQUEOUS RESINOUS DISPERSION WITH AN OXIDIZING ACIDIC COMPOSITION SELECTED FROM THE GROUP CONSISTING OF AQUEOUS SOLUTIONS OF NITRIC ACID, CHROMIC ACID, PERCHLORIC ACID, PERMANGANIC ACID, AND ACETYL PEROXIDE-HYDROCHLORIC ACID; SAID DISPERSION COMPRISING DISPERSED THEREIN AN A-STAGE WATER DISPERSIBLE RESINOUS PRODUCT OF THE CONDENSATION OF A PHENOL AND AN ALDEHYDE, AND A POLYMER OF VINYL ACETATE; THE WEIGHT RATIO OF POLYMER OF VINYL ACETATE TO RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 1.0 TO 5.0; THE AMOUNT OF ACID IN MILLIEQUIVALENTS PER 100 PARTS OF THE TOTAL OF POLYMER OF VINYL ACETATE AND RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 10 TO 33.3.
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |