US2612486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Styrene-monoalkyl maleate-polyvinyl alcohol interpolymers emulsion adhesive and process of preparing same
Assignee: Monsanto Chemicals Ltd
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Filing: 1950-07-07
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Granted: 1952-09-30
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Expires: 1970-07-07
Abstract
No abstract record available.
Inventors
- 👤 Martha E Cameron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:22
CPC Classifications
C; C08; C08F; C08F261/00; C08F261/02; C08F261/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN AQUEOUS EMULSION ADHESIVE COMPRISING THE INTERREACTION PRODUCT OF (A) FROM ABOUT 0.7 TO ABOUT 2.3 MOLES OF STYRENE, (B) 1.0 MOLE OF MONO1 TO 4 CARBON ATOM ALKYL MALEATE, AND (C) FROM ABOUT 15 TO ABOUT 30 PARTS BY WEIGHT OF HIGH VISCOSITY, SUBSTANTIALLY COMPLETELY HYDROLYZED POLYVINYL ALCOHOL PER 100 PARTS OF WEIGHT OF STYRENE, WHEREIN THE SAID INTERREACTION PRODUCT IS PREPARED IN THE PRESENCE OF A PEROXYGEN INTERPOLYMERIZATION CATALYST AND AN EXTERNAL WATER PHASE AT A TEMPERATURE OF FROM ABOUT 80* C. TO THE REFLUX TEMPERATURE OF SAID MIXTURE FOR FROM ABOUT 0.5 TO 20 HOURS TO PROVIDE AN EMULSION ADHESIVE CHARACTERIZED BY A SPREADABLE CONSISTENCY AND A RESISTANCE TO FAILURE WHEN EXPOSED TO TEMPERATURES UP TO 180* F. WHILE UNDER STRESS.
Claim 2
Dependent Claim
124 words
AN AQUEOUS EMULSION ADHESIVE COMPRISING THE INTERREACTION PRODUCT OF (A) FROM ABOUT 0.7 TO ABOUT 2.3 MOLES OF STYRENE, (B) 1.0 MOLE OF MONO1 TO 4 CARBON ATOM ALKYL MALEATE, AND (C) FROM ABOUT 15 TO ABOUT 30 PARTS BY WEIGHT OF HIGH VISCOSITY, SUBSTANTIALLY COMPLETELY HYDROLYZED POLYVINYL ALCOHOL PER 100 PARTS OF WEIGHT OF STYRENE, WHEREIN THE SAID INTERREACTION PRODUCT IS PREPARED IN THE PRESENCE OF A PEROXYGEN INTERPOLYMERIZATION CATALYST AND AN EXTERNAL WATER PHASE AT A TEMPERATURE OF FROM ABOUT 80* C. TO THE REFLUX TEMPERATURE OF SAID MIXTURE FOR FROM ABOUT 0.5 TO 20 HOURS TO PROVIDE AN EMULSION ADHESIVE CHARACTERIZED BY A SPREADABLE CONSISTENCY AND A RESISTANCE TO FAILURE WHEN EXPOSED TO TEMPERATURES UP TO 180* F. WHILE UNDER STRESS.
References Cited (Backward Citations)
US2419880A
Cited
US2537016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |