US2862913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glucoside esters as suspending agents in vinyl halide polymerization process
Assignee: Monsanto Chemicals Ltd
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Filing: 1957-04-01
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Granted: 1958-12-02
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Expires: 1977-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert O L Lynn
- 👤 Harold W Mohrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:24
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F14/16; C08F14/18; C08F14/20; Y; Y10; Y10S; Y10S526/00; Y10S526/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A PROCESS FOR THE SUSPENSION POLYMERIZATION OF A VINYL HALIDE OF THE GROUP CONSISTING OF VINYL FLUORIDE, VINYL CHLORIDE AND VINYL BROMIDE IN WHICH THE VINYL HALIDE IS SUSPENDED AND POLYMERIZED IN WATER CONTAINING A WATERSOLUBLE INTERPOLYMER OF A MALEIC COMPOUND OF THE GROUP CONSISTING OF MALEIC ANHYDRIDE, MALEIC ACID AND MALEINIMIDE AND AN INTERPOLYMERIZABLE VINYLIDENE MONOMER AS A SUSPENDING AGENT FOR THE VINYL HALIDE POLYMER; THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN THE POLYMERIZATION SYSTEM, AS AN AUXILIARY SUSPENDING AGENT, AN ALKYL GLUCOSIDE DIESTER OF A MONOBASIC FATTY ACID CONTAINING 10-20 CARBON ATOMS, THE ALKYL GROUP OF SAID ALKYL GLUCOSIDE CONTAINING 1-4 CARBON ATOMS.
Claim 2
Dependent Claim
105 words
IN A PROCESS FOR THE SUSPENSION POLYMERIZATION OF A VINYL HALIDE OF THE GROUP CONSISTING OF VINYL FLUORIDE, VINYL CHLORIDE AND VINYL BROMIDE IN WHICH THE VINYL HALIDE IS SUSPENDED AND POLYMERIZED IN WATER CONTAINING A WATERSOLUBLE INTERPOLYMER OF A MALEIC COMPOUND OF THE GROUP CONSISTING OF MALEIC ANHYDRIDE, MALEIC ACID AND MALEINIMIDE AND AN INTERPOLYMERIZABLE VINYLIDENE MONOMER AS A SUSPENDING AGENT FOR THE VINYL HALIDE POLYMER; THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN THE POLYMERIZATION SYSTEM, AS AN AUXILIARY SUSPENDING AGENT, AN ALKYL GLUCOSIDE DIESTER OF A MONOBASIC FATTY ACID CONTAINING 10-20 CARBON ATOMS, THE ALKYL GROUP OF SAID ALKYL GLUCOSIDE CONTAINING 1-4 CARBON ATOMS.
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) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |