US3065041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of graft-polymerizing acrylate monomers onto paper in presence of ethylene dimethacrylate, and resulting product
Assignee: Wyeth Holdings LLC
•
Filing: 1958-04-23
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Granted: 1962-11-20
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Expires: 1978-04-23
Abstract
No abstract record available.
Inventors
- 👤 Suen Tzeng Jiueq
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:40
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/18; D21H17/19; D21H13/00; D21H13/02; D21H13/08; D21H13/10; D21H13/12; D21H13/18; D21H13/20; D21H13/26; D21H13/36; D21H13/38; D21H13/40; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS COMPRISING GRAFT POLYMERIZING A MONOMERIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYL ACRYLATE. PROPYL ACRYLATE AND BUTYL ACRYLATE IN THE PRESENCE OF FROM ABOUT 0.01% TO ABOUT 1% BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID ACRYLATES, OF ETHYLENE DIMETHACRYLATE ONTO A PAPER SUBSTRATE COMPOSED PREDOMINATELY OF CELLULOSIC FIBERS IN AN AQUEOUS MEDIUM AT A PH NOT GREATER THAN 3.5 IN THE PRESENCE OF A CERIC SALT WHICH IS SOLUBLE IN AT LEAST ONE COMPONENT OF THE REACTION MEDIUM UNTIL THE WEIGHT OF SAID MONOACRYLATE GRAFTED ONTO SAID SUBSTRATE IS BETWEEN 100% AND 900% BASED ON THE WEIGHT OF THE SUBSTRATE.
Claim 2
Dependent Claim
105 words
A PROCESS COMPRISING GRAFT POLYMERIZING A MONOMERIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYL ACRYLATE. PROPYL ACRYLATE AND BUTYL ACRYLATE IN THE PRESENCE OF FROM ABOUT 0.01% TO ABOUT 1% BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID ACRYLATES, OF ETHYLENE DIMETHACRYLATE ONTO A PAPER SUBSTRATE COMPOSED PREDOMINATELY OF CELLULOSIC FIBERS IN AN AQUEOUS MEDIUM AT A PH NOT GREATER THAN 3.5 IN THE PRESENCE OF A CERIC SALT WHICH IS SOLUBLE IN AT LEAST ONE COMPONENT OF THE REACTION MEDIUM UNTIL THE WEIGHT OF SAID MONOACRYLATE GRAFTED ONTO SAID SUBSTRATE IS BETWEEN 100% AND 900% BASED ON THE WEIGHT OF THE SUBSTRATE.
References Cited (Backward Citations)
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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) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |