US2607753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coagulation of synthetic rubber latices
Assignee: Uniroyal Inc
•
Filing: 1950-05-23
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Granted: 1952-08-19
•
Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 James W Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:18
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/16; C08J2309/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE METHOD OF COAGULATING A BUTADIDENE POLYMER SYNTHETIC RUBBER LATEX CONTAINING UP TO 100 PARTS OF CARBON BLACK PER 100 PARTS OF SYNTHETIC RUBBER CONTENT AND CONTAINING A SURFACE-ACTIVE DISPERSING AGENT OF THE GENERAL FORMULA R-SO3M WHERE M REPRESENTS AN ALKALI RADICAL AND R REPRESENTS AN ORGANIC RADICAL CONTAINING AT LEAST ONE GROUP HAVING MORE THAN 8 CARBON ATOMS, WHICH COMPRISES MIXING WITH THE LATEX IN THE ABSENCE OF POLYETHYLENE POLYAMINES WATER-SOLUBLE MATERIAL OF THE GROUP CONSISTING OF ACIDS, POLYVALENT METAL SALTS, ACIDS AND POLYVALENT METAL SALTS, AND ACIDS AND ALKALI SALTS, IN AMOUNT TO CAUSE FLUOCULATION OF THE LATEX AND THEREBY FLOCCULATING THE LATEX, AND THEREAFTER ADDING TO THE RESULTING FLUOCULATED MIXTURE A POLYETHYLENE POLYAMINE.
Claim 2
Independent Claim
116 words
THE METHOD OF COAGULATING A BUTADIDENE POLYMER SYNTHETIC RUBBER LATEX CONTAINING UP TO 100 PARTS OF CARBON BLACK PER 100 PARTS OF SYNTHETIC RUBBER CONTENT AND CONTAINING A SURFACE-ACTIVE DISPERSING AGENT OF THE GENERAL FORMULA R-SO3M WHERE M REPRESENTS AN ALKALI RADICAL AND R REPRESENTS AN ORGANIC RADICAL CONTAINING AT LEAST ONE GROUP HAVING MORE THAN 8 CARBON ATOMS, WHICH COMPRISES MIXING WITH THE LATEX IN THE ABSENCE OF POLYETHYLENE POLYAMINES WATER-SOLUBLE MATERIAL OF THE GROUP CONSISTING OF ACIDS, POLYVALENT METAL SALTS, ACIDS AND POLYVALENT METAL SALTS, AND ACIDS AND ALKALI SALTS, IN AMOUNT TO CAUSE FLUOCULATION OF THE LATEX AND THEREBY FLOCCULATING THE LATEX, AND THEREAFTER ADDING TO THE RESULTING FLUOCULATED MIXTURE A POLYETHYLENE POLYAMINE.
References Cited (Backward Citations)
US2359667A
Cited
US2419512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |