US2544714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-resistant adhesive
Assignee: Stein Hall and Co Inc
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Filing: 1949-07-12
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Granted: 1951-03-13
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Expires: 1969-07-12
Abstract
No abstract record available.
Inventors
- 👤 Edward E Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:50
CPC Classifications
C; C09; C09J; C09J103/00; C09J103/02; C08; C08L; C08L2666/00; C08L2666/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
A DRY POWDER COMPOSITION CONSISTING ESSENTIALLY OF 78 PARTS OF A MODIFIED STARCH WHICH HAS A WATER-SOLUBLES CONTENT IN THE RANGE OF ABOUT 0 TO 30% AND GIVES A 10 TO 30 GRAM DISPERSION IN 100 CC. OF WATER HAVING A 50 CC. STANDARD PIPETTE VISCOSITY IN THE RANGE OF 35 TO 40 SECONDS WHEN HEATED TO 85* C., 5 TO 10 PARTS OF A WATER-SOLUBLE HEAT-HARDENABLE UREA-FORMALDEHYDE CONDENSATE, 5 TO 15 PARTS OF AN ACIDIC MATERIAL WHICH GIVES A 3% AQUEOUS SOLUTION HAVING A PH IN THE RANGE OF 3.0 TO 3.6, AND 0.5 TO 2 PARTS OF A TECHNICAL WATER-SOLUBLE SALT OF AN ORGANIC SULFURIC REACTION PRODUCT CONTAINING AN ALKYL RADICAL OF FROM 8 TO 18 CARBON ATOMS AND A RADICAL SELECTED FROM THE GROUP CONSISTING OF A SULFATE ESTER RADICAL AND A SULFONIC RADICAL, SAID COMPOSITION BEING CHARACTERIZED BY GIVING A STABLE ADHESIVE PASTE UPON COOLING A 28.6% SOLIDS AQUEOUS DISPERSION THEREOF WHICH PASTE HAS A PH IN THE RANGE OF 3.0 TO 3.6 AND A BROOKFIELD VISCOSITY AT 25* C. IN THE RANGE OF 700 TO 3500 CPS. AND WHICH DEVELOPS INTO A WATER RESISTANT BOND UPON DRYING AND STANDING AT ROOM TEMPERATURE.
Claim 2
Dependent Claim
197 words
A DRY POWDER COMPOSITION CONSISTING ESSENTIALLY OF 78 PARTS OF A MODIFIED STARCH WHICH HAS A WATER-SOLUBLES CONTENT IN THE RANGE OF ABOUT 0 TO 30% AND GIVES A 10 TO 30 GRAM DISPERSION IN 100 CC. OF WATER HAVING A 50 CC. STANDARD PIPETTE VISCOSITY IN THE RANGE OF 35 TO 40 SECONDS WHEN HEATED TO 85* C., 5 TO 10 PARTS OF A WATER-SOLUBLE HEAT-HARDENABLE UREA-FORMALDEHYDE CONDENSATE, 5 TO 15 PARTS OF AN ACIDIC MATERIAL WHICH GIVES A 3% AQUEOUS SOLUTION HAVING A PH IN THE RANGE OF 3.0 TO 3.6, AND 0.5 TO 2 PARTS OF A TECHNICAL WATER-SOLUBLE SALT OF AN ORGANIC SULFURIC REACTION PRODUCT CONTAINING AN ALKYL RADICAL OF FROM 8 TO 18 CARBON ATOMS AND A RADICAL SELECTED FROM THE GROUP CONSISTING OF A SULFATE ESTER RADICAL AND A SULFONIC RADICAL, SAID COMPOSITION BEING CHARACTERIZED BY GIVING A STABLE ADHESIVE PASTE UPON COOLING A 28.6% SOLIDS AQUEOUS DISPERSION THEREOF WHICH PASTE HAS A PH IN THE RANGE OF 3.0 TO 3.6 AND A BROOKFIELD VISCOSITY AT 25* C. IN THE RANGE OF 700 TO 3500 CPS. AND WHICH DEVELOPS INTO A WATER RESISTANT BOND UPON DRYING AND STANDING AT ROOM TEMPERATURE.
References Cited (Backward Citations)
US2302309A
Cited
US2450377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |