US2684954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous emulsion polymerization utilizing water-soluble salts of nu-dodecyl-beta-alanines
Assignee: Goodrich Corp
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Filing: 1951-05-22
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Granted: 1954-07-27
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Expires: 1971-05-22
Abstract
No abstract record available.
Inventors
- 👤 James R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:38
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN THE PROCESS OF MANUFACTURING A STABLE SYNTHETIC RUBBER LATEX HAVING AFFINITY FOR FIBROUS MATERIALS SUCH AS TEXTILES AND PAPER AND HAVING ANY DESIRED PH WITHIN THE RANGE OF ABOUT 1.5 TO 11.5 BY THE POLYMERIZATION IN AQUEOUS EMULSION OF A MONOMERIC MATERIAL CONSISTING ESSENTIALLY OF FROM 50 TO 85% BY WEIGHT OF BUTADIENE-1,3 AND FROM 15 TO 50% BY WEIGHT ACRYLONITRILE, THE STEPS WHICH COMPRISE FORMING AN AQUEOUS EMULSION OF SAID MONOMERIC MATERIAL USING N-DODECYLBETA-ALANINE AS EMULSIFYING AGENT, ADDING TO THE EMULSION A SUFFICIENT QUANTITY OF A NEUTRALIZING AGENT SELECTED FROM THE CLASS CONSISTING OF HYDROCHLORIC ACID AND ALKALI HYDROXIDES TO NEUTRALIZE THE N-DODECYL-BETA-ALANINE AND FORM THE SALT THEREOF AND TO PRODUCE THE DESIRED PH AND THEN AGITATING THE EMULSION AT A TEMPERATURE OF ABOUT 5 TO 40* C. IN THE PRESENT OF A POLYMERIZATION CATALYST TO EFFECT CONVERSION OF THE MONOMERIC MATERIAL TO POLYMER AND THUS PRODUCE THE STABLE LATEX.
Claim 2
Dependent Claim
152 words
IN THE PROCESS OF MANUFACTURING A STABLE SYNTHETIC RUBBER LATEX HAVING AFFINITY FOR FIBROUS MATERIALS SUCH AS TEXTILES AND PAPER AND HAVING ANY DESIRED PH WITHIN THE RANGE OF ABOUT 1.5 TO 11.5 BY THE POLYMERIZATION IN AQUEOUS EMULSION OF A MONOMERIC MATERIAL CONSISTING ESSENTIALLY OF FROM 50 TO 85% BY WEIGHT OF BUTADIENE-1,3 AND FROM 15 TO 50% BY WEIGHT ACRYLONITRILE, THE STEPS WHICH COMPRISE FORMING AN AQUEOUS EMULSION OF SAID MONOMERIC MATERIAL USING N-DODECYLBETA-ALANINE AS EMULSIFYING AGENT, ADDING TO THE EMULSION A SUFFICIENT QUANTITY OF A NEUTRALIZING AGENT SELECTED FROM THE CLASS CONSISTING OF HYDROCHLORIC ACID AND ALKALI HYDROXIDES TO NEUTRALIZE THE N-DODECYL-BETA-ALANINE AND FORM THE SALT THEREOF AND TO PRODUCE THE DESIRED PH AND THEN AGITATING THE EMULSION AT A TEMPERATURE OF ABOUT 5 TO 40* C. IN THE PRESENT OF A POLYMERIZATION CATALYST TO EFFECT CONVERSION OF THE MONOMERIC MATERIAL TO POLYMER AND THUS PRODUCE THE STABLE LATEX.
References Cited (Backward Citations)
US2388372A
Cited
US2468012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |