US2902458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous adhesive comprising acid, phenol-aldehyde resin and polymer of vinyl acetate
Assignee: Hexion Inc
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Filing: 1954-10-11
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Granted: 1959-09-01
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Expires: 1974-10-11
Abstract
No abstract record available.
Inventors
- 👤 Teppema Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:49
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
114 words
AN ADMIXTURE OF ACID WITH AN AQUEOUS RESINOUS DISPERSION; SAID DISPERSION COMPRISING DISPERSED THEREIN AN A-STAGE WATER-DISPOSABLE RESINOUS RODUCT OF THE CONDENSATION OF A PHENOL AND AN ALDEHYDE AND POLYMER OF VINYL ACETATE; SAID ACID BEING SELECTED FROM THE GROUP CONSISTING OF TOLUENE-SULPHONIC ACID, TRICHLORACETIC ACID, HYDROCHLORIC ACID, SUFURIC ACID, TRICHLORAECTIC ACID, AND HYPOPHOSPHOROUS ACID; THE WEIGHT RATIO OF POLYMER OF VINYL ACETATE TO RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 0.3 TO 4.0; THE AMOUNT OF ACID IN MILLIEQUIVALENTS PER 100 PARTS OF THE TOTAL OF POLMYER OF VINYL ACETATE AND RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 3.6 TO 11.3, SAID ADMIXTURE BEING CHARACTERIZED AS BEING A WOOD BONDING ADHESIVE.
Claim 2
Dependent Claim
114 words
AN ADMIXTURE OF ACID WITH AN AQUEOUS RESINOUS DISPERSION; SAID DISPERSION COMPRISING DISPERSED THEREIN AN A-STAGE WATER-DISPOSABLE RESINOUS RODUCT OF THE CONDENSATION OF A PHENOL AND AN ALDEHYDE AND POLYMER OF VINYL ACETATE; SAID ACID BEING SELECTED FROM THE GROUP CONSISTING OF TOLUENE-SULPHONIC ACID, TRICHLORACETIC ACID, HYDROCHLORIC ACID, SUFURIC ACID, TRICHLORAECTIC ACID, AND HYPOPHOSPHOROUS ACID; THE WEIGHT RATIO OF POLYMER OF VINYL ACETATE TO RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 0.3 TO 4.0; THE AMOUNT OF ACID IN MILLIEQUIVALENTS PER 100 PARTS OF THE TOTAL OF POLMYER OF VINYL ACETATE AND RESINOUS PRODUCT BEING IN THE RANGE OF APPROXIMATELY 3.6 TO 11.3, SAID ADMIXTURE BEING CHARACTERIZED AS BEING A WOOD BONDING ADHESIVE.
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 |