Patent US3322737A successfully refreshed from Google Patents.
US3322737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of water-resistant polymers employing sulfonium salts
Assignee: Dow Chemical Co
•
Filing: 1964-01-02
•
Granted: 1967-05-30
•
Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Donald A Kangas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:34
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A METHOD FOR PREPARING A WATER RESISTANT POLYMERIC PRODUCT COMPRISING THE STEPS OF (1) SUBJECTING A POLYMERIZABLE, NON-IONIC, ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL TO CONDITIONS CONDUCIVE TO EMULSION POLYMERIZATION IN AQUEOUS MEDIA AT A PH OF FROM ABOUT 2 TO ABOUT 8 AND CONTAINING A DISPERSION STABILIZER CONSISTING ESSENTIALLY OF A SULFONIUM SALT HAVING THE FORMULA
Claim 2
Independent Claim
55 words
A METHOD FOR PREPARING A WATER RESISTANT POLYMERIC PRODUCT COMPRISING THE STEPS OF (1) SUBJECTING A POLYMERIZABLE, NON-IONIC, ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL TO CONDITIONS CONDUCIVE TO EMULSION POLYMERIZATION IN AQUEOUS MEDIA AT A PH OF FROM ABOUT 2 TO ABOUT 8 AND CONTAINING A DISPERSION STABILIZER CONSISTING ESSENTIALLY OF A SULFONIUM SALT HAVING THE FORMULA
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |