US2537124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latex adhesive containing phenolphthalein and method of using the same
Assignee: UNION BAY STATE CO Inc
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Filing: 1946-01-23
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Granted: 1951-01-09
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Expires: 1966-01-23
Abstract
No abstract record available.
Inventors
- 👤 Roland D Earle
- 👤 Charles I Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:35
CPC Classifications
C; C09; C09J; C09J5/00; Y; Y10; Y10S; Y10S252/00; Y10S252/963; Y10S524/00; Y10S524/925; Y10S524/926
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
THE METHOD OF BONDING SURFACES, WHICH COMPRISES APPLYING TO SAID SURFACES A DISPERSION HAVING A DISPERSED PHASE COMPRISING A HYDROPHOBIC FILM-FORMING ADHESIVE COMPOSITION RELATIVELY FREE FROM DARK COLORED PIGMENTS, AND AN AQUEOUS PHASE INCLUDING AN ALKALINE MATERIAL IN AN AMOUNT SUFFICIENT TO PRODUCE A PH OF NOT LESS THAN 9 AND NOT MORE THAN ABOUT 13 AND CONTAINING AT LEAST 0.03% PHENOLPHTHALEIN BASED ON THE DRY WEIGHT OF THE DISPERSED PHASE, THE DISPERSION BEING CHARACTERIZED BY A RED COLORATION, DRYING SAID DISPERSION UNTIL THE RED COLORATION PRODUCED BY SAID PHENOLPHTHALEIN DISAPPEARS, AND THEREAFTER BRINGING THE SURFACES TOGETHER TO EFFECT AN ADHESIVE BOND.
Claim 2
Independent Claim
102 words
THE METHOD OF BONDING SURFACES, WHICH COMPRISES APPLYING TO SAID SURFACES A DISPERSION HAVING A DISPERSED PHASE COMPRISING A HYDROPHOBIC FILM-FORMING ADHESIVE COMPOSITION RELATIVELY FREE FROM DARK COLORED PIGMENTS, AND AN AQUEOUS PHASE INCLUDING AN ALKALINE MATERIAL IN AN AMOUNT SUFFICIENT TO PRODUCE A PH OF NOT LESS THAN 9 AND NOT MORE THAN ABOUT 13 AND CONTAINING AT LEAST 0.03% PHENOLPHTHALEIN BASED ON THE DRY WEIGHT OF THE DISPERSED PHASE, THE DISPERSION BEING CHARACTERIZED BY A RED COLORATION, DRYING SAID DISPERSION UNTIL THE RED COLORATION PRODUCED BY SAID PHENOLPHTHALEIN DISAPPEARS, AND THEREAFTER BRINGING THE SURFACES TOGETHER TO EFFECT AN ADHESIVE BOND.
Claim 3
Dependent Claim
63 words
AN ADHESIVE COMPRISING A DISPERSION HAVING A DISPERSED PHASE COMPRISING A HYDROPHOBIC FILMFORMING ADHESIVE COMPOSITION RELATIVELY FREE FROM DARK-COLORED PIGMENTS, AND AN AQUEOUS CONTINUOUS PHASE INCLUDING AN ALKALINE MATERIAL IN AN AMOUNT SUFFICIENT TO PRODUCT A PH OF NOT LESS THAN 9 AND NOT MORE THAN ABOUT 13 AND CONTAINING AT LEAST 0.03% PHENOLPHTHALEIN BASED ON THE DRY WEIGHT OF THE DISPERSED PHASE.
Claim 4
Dependent Claim
63 words
AN ADHESIVE COMPRISING A DISPERSION HAVING A DISPERSED PHASE COMPRISING A HYDROPHOBIC FILMFORMING ADHESIVE COMPOSITION RELATIVELY FREE FROM DARK-COLORED PIGMENTS, AND AN AQUEOUS CONTINUOUS PHASE INCLUDING AN ALKALINE MATERIAL IN AN AMOUNT SUFFICIENT TO PRODUCT A PH OF NOT LESS THAN 9 AND NOT MORE THAN ABOUT 13 AND CONTAINING AT LEAST 0.03% PHENOLPHTHALEIN BASED ON THE DRY WEIGHT OF THE DISPERSED PHASE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |